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Subjectinclude/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, l
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>

---
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