diff options
Diffstat (limited to 'libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch')
| -rw-r--r-- | libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch b/libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch new file mode 100644 index 000000000..c4242e0ae --- /dev/null +++ b/libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch @@ -0,0 +1,68 @@ +From 83460ec8dcac14142e7860a01fa59c267ac4657c Mon Sep 17 00:00:00 2001 +From: Andi Kleen <ak@linux.intel.com> +Date: Tue, 12 Nov 2013 15:08:36 -0800 +Subject: [PATCH] syscalls.h: use gcc alias instead of assembler aliases for + syscalls + +Use standard gcc __attribute__((alias(foo))) to define the syscall aliases +instead of custom assembler macros. + +This is far cleaner, and also fixes my LTO kernel build. + +Signed-off-by: Andi Kleen <ak@linux.intel.com> +Cc: Al Viro <viro@ZenIV.linux.org.uk> +Cc: Geert Uytterhoeven <geert@linux-m68k.org> +Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> +Signed-off-by: Andrew Morton <akpm@linux-foundation.org> +Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> +--- + include/linux/compat.h | 4 ++-- + include/linux/syscalls.h | 4 ++-- + 2 files changed, 4 insertions(+), 4 deletions(-) + +diff --git a/include/linux/compat.h b/include/linux/compat.h +index 345da00..ada34c9 100644 +--- a/include/linux/compat.h ++++ b/include/linux/compat.h +@@ -41,14 +41,14 @@ + COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) + + #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ +- asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ ++ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ ++ __attribute__((alias(__stringify(compat_SyS##name)))); \ + static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ + asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\ + asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ + { \ + return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \ + } \ +- SYSCALL_ALIAS(compat_sys##name, compat_SyS##name); \ + static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + + #ifndef compat_user_stack_pointer +diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h +index 7fac04e..c27f846 100644 +--- a/include/linux/syscalls.h ++++ b/include/linux/syscalls.h +@@ -184,7 +184,8 @@ extern struct trace_event_functions exit_syscall_print_funcs; + + #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) + #define __SYSCALL_DEFINEx(x, name, ...) \ +- asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ ++ asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ++ __attribute__((alias(__stringify(SyS##name)))); \ + static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ + asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ +@@ -194,7 +195,6 @@ extern struct trace_event_functions exit_syscall_print_funcs; + __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ + return ret; \ + } \ +- SYSCALL_ALIAS(sys##name, SyS##name); \ + static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + + asmlinkage long sys_time(time_t __user *tloc); +-- +1.8.5.3 + |