From 8f5a90c270d2d1860e87764a14d739988c53e7b2 Mon Sep 17 00:00:00 2001 From: Marcus Shawcroft Date: Tue, 24 Sep 2013 13:03:02 +0100 Subject: [PATCH] [AArch64] Support __mcount profiling. --- ports/ChangeLog.aarch64 | 5 +++++ ports/sysdeps/aarch64/machine-gmon.h | 15 +++++++-------- 2 files changed, 12 insertions(+), 8 deletions(-) diff --git a/ports/ChangeLog.aarch64 b/ports/ChangeLog.aarch64 index 0090872..3daf3ed 100644 --- a/ports/ChangeLog.aarch64 +++ b/ports/ChangeLog.aarch64 @@ -1,3 +1,8 @@ +2013-09-24 Venkataramanan Kumar + + * sysdeps/aarch64/machine-gmon.h (__mcount): Accept parameter and + pass it to mcount_internal. + 2013-09-24 Venkataramanan Kumar * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h: New file. diff --git a/ports/sysdeps/aarch64/machine-gmon.h b/ports/sysdeps/aarch64/machine-gmon.h index 4425965..5cc2941 100644 --- a/ports/sysdeps/aarch64/machine-gmon.h +++ b/ports/sysdeps/aarch64/machine-gmon.h @@ -16,10 +16,9 @@ License along with the GNU C Library; if not, see . */ -/* GCC version 2 gives us a perfect magical function to get - just the information we need: - void *__builtin_return_address (unsigned int N) - returns the return address of the frame N frames up. */ +/* Accept 'frompc' address as argument from the function that calls + __mcount for profiling. Use __builtin_return_address (0) + for the 'selfpc' address. */ #include @@ -28,8 +27,8 @@ static void mcount_internal (u_long frompc, u_long selfpc); #define _MCOUNT_DECL(frompc, selfpc) \ static inline void mcount_internal (u_long frompc, u_long selfpc) -#define MCOUNT \ -void __mcount (void) \ -{ \ - mcount_internal ((u_long) RETURN_ADDRESS (1), (u_long) RETURN_ADDRESS (0)); \ +#define MCOUNT \ +void __mcount (void *frompc) \ +{ \ + mcount_internal ((u_long) frompc, (u_long) RETURN_ADDRESS (0)); \ } -- 2.7.4