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Date: Wed, 30 May 2018 04:56:23 +0000 From: "Li, Philip" <philip.li@...el.com> To: lkp <lkp@...el.com>, Al Viro <viro@...iv.linux.org.uk> CC: "kbuild-all@...org" <kbuild-all@...org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [kbuild-all] include/linux/syscalls.h:211:18: error: 'sys_sparc_remap_file_pages' alias between functions of incompatible types 'long int(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int)' and 'long int(lon > > Hi Al, > > FYI, the error/warning still remains. hi AI, kindly ignore this, the warning below may be caused by gcc-8.1 upgrade. we will double check to reduce noises. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 0044cdeb731313f20b63cb5644de7588731de32b > commit: a0d32ad366bb4235267380b341fcae8307f51044 switch > sparc_remap_file_pages() to 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 a0d32ad366bb4235267380b341fcae8307f51044 > # 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_sparc_remap_file_pages' alias > between functions of incompatible types 'long 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)' [-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:119:1: note: in expansion of macro > 'SYSCALL_DEFINE5' > SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned > long, size, > ^~~~~~~~~~~~~~~ > 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:119:1: note: in expansion of macro > 'SYSCALL_DEFINE5' > SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned > long, size, > ^~~~~~~~~~~~~~~ > 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_sparc_remap_file_pages' alias > between functions of incompatible types 'long 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)' [-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:119:1: note: in expansion of macro > 'SYSCALL_DEFINE5' > SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned > long, size, > ^~~~~~~~~~~~~~~ > 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:119:1: note: in expansion of macro > 'SYSCALL_DEFINE5' > SYSCALL_DEFINE5(sparc_remap_file_pages, unsigned long, start, unsigned > long, size, > ^~~~~~~~~~~~~~~ > 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@...ux.intel.com> > :::::: CC: Linus Torvalds <torvalds@...ux-foundation.org> > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
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