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-rw-r--r--libre-testing/linux-libre/0001-syscalls.h-use-gcc-alias-instead-of-assembler-aliase.patch68
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
+