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* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-05-31  1:26 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-05-31  1:26 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19336 bytes --]

Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   88a867653065dc14b0fdeeb626efb8d7ebe39be5
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   2 months ago
config: sparc-sparc32_defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 12146 bytes --]

^ permalink raw reply	[flat|nested] 6+ messages in thread

* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-06-20  4:44 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-06-20  4:44 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19346 bytes --]

Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ba4dbdedd3edc2798659bcd8b1a184ea8bdd04dc
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   3 months ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        GCC_VERSION=8.1.0 make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-06-11  1:18 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-06-11  1:18 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19328 bytes --]

Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1aaccb5fa0eac996adde53538ca4b87a0b229ab7
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   3 months ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-06-01  1:09 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-06-01  1:09 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19328 bytes --]

Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0512e0134582ef85dee77d51aae77dcd1edec495
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   2 months ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-05-30  4:29 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-05-30  4:29 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19328 bytes --]

Hi Al,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0044cdeb731313f20b63cb5644de7588731de32b
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   2 months ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All errors (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 12146 bytes --]

^ permalink raw reply	[flat|nested] 6+ messages in thread

* include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int, long int,  long int)'
@ 2018-05-24 14:35 kbuild test robot
  0 siblings, 0 replies; 6+ messages in thread
From: kbuild test robot @ 2018-05-24 14:35 UTC (permalink / raw)
  To: Al Viro; +Cc: kbuild-all, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 19288 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   bee797529d7c1ea4e2803fda067d20edbc00bc3d
commit: ee076e81fc14ca79334d02970cea66604f183a14 sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE()
date:   9 weeks ago
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 8.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout ee076e81fc14ca79334d02970cea66604f183a14
        # save the attached .config to linux build tree
        make.cross ARCH=sparc 

All error/warnings (new ones prefixed by >>):

   In file included from arch/sparc/kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
>> arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
>> arch/sparc/kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
>> arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
>> arch/sparc/kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc/kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors
--
   In file included from arch/sparc//kernel/sys_sparc_32.c:21:
>> include/linux/syscalls.h:211:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:101:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_getdomainname' alias between functions of incompatible types 'long int(char *, int)' and 'long int(long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:197:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:205:1: note: in expansion of macro 'SYSCALL_DEFINE2'
    SYSCALL_DEFINE2(getdomainname, char __user *, name, int, len)
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_rt_sigaction' alias between functions of incompatible types 'long int(int,  const struct sigaction *, struct sigaction *, void *, size_t)' {aka 'long int(int,  const struct sigaction *, struct sigaction *, void *, unsigned int)'} and 'long int(long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:200:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:176:1: note: in expansion of macro 'SYSCALL_DEFINE5'
    SYSCALL_DEFINE5(rt_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:211:18: error: 'sys_sparc_sigaction' alias between functions of incompatible types 'long int(int,  struct old_sigaction *, struct old_sigaction *)' and 'long int(long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:198:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:168:1: note: in expansion of macro 'SYSCALL_DEFINE3'
    SYSCALL_DEFINE3(sparc_sigaction, int, sig,
    ^~~~~~~~~~~~~~~
>> include/linux/syscalls.h:211:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int,  long unsigned int)' and 'long int(long int,  long int,  long int,  long int,  long int,  long int)' [-Werror=attribute-alias]
     asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   include/linux/syscalls.h:215:18: note: aliased declaration here
     asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
                     ^~~
   include/linux/syscalls.h:207:2: note: in expansion of macro '__SYSCALL_DEFINEx'
     __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
     ^~~~~~~~~~~~~~~~~
   include/linux/syscalls.h:201:36: note: in expansion of macro 'SYSCALL_DEFINEx'
    #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
                                       ^~~~~~~~~~~~~~~
   arch/sparc//kernel/sys_sparc_32.c:111:1: note: in expansion of macro 'SYSCALL_DEFINE6'
    SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
    ^~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

vim +211 include/linux/syscalls.h

609320c8 Yonghong Song       2017-09-07  204  
bed1ffca Frederic Weisbecker 2009-03-13  205  #define SYSCALL_DEFINEx(x, sname, ...)				\
99e621f7 Al Viro             2013-03-05  206  	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
bed1ffca Frederic Weisbecker 2009-03-13 @207  	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  208  
2cf09666 Al Viro             2013-01-21  209  #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
bed1ffca Frederic Weisbecker 2009-03-13  210  #define __SYSCALL_DEFINEx(x, name, ...)					\
83460ec8 Andi Kleen          2013-11-12 @211  	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
83460ec8 Andi Kleen          2013-11-12  212  		__attribute__((alias(__stringify(SyS##name))));		\
07fe6e00 Al Viro             2013-01-21  213  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
f9597f24 Sergei Trofimovich  2013-09-11  214  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  215  	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
1a94bc34 Heiko Carstens      2009-01-14  216  	{								\
2cf09666 Al Viro             2013-01-21  217  		long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\
07fe6e00 Al Viro             2013-01-21  218  		__MAP(x,__SC_TEST,__VA_ARGS__);				\
2cf09666 Al Viro             2013-01-21  219  		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
2cf09666 Al Viro             2013-01-21  220  		return ret;						\
1a94bc34 Heiko Carstens      2009-01-14  221  	}								\
07fe6e00 Al Viro             2013-01-21  222  	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
1a94bc34 Heiko Carstens      2009-01-14  223  

:::::: The code at line 211 was first introduced by commit
:::::: 83460ec8dcac14142e7860a01fa59c267ac4657c syscalls.h: use gcc alias instead of assembler aliases for syscalls

:::::: TO: Andi Kleen <ak@linux.intel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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