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| author | Marcus Shawcroft <marcus.shawcroft@linaro.org> | 2013-09-24 13:03:02 +0100 |
|---|---|---|
| committer | Marcus Shawcroft <marcus.shawcroft@linaro.org> | 2013-09-24 13:03:02 +0100 |
| commit | 8f5a90c270d2d1860e87764a14d739988c53e7b2 (patch) | |
| tree | 85db9820627d35ed4e837db5dbec714be16f91ee | |
| parent | cfa4df95003c963c16d2102aef9c806f8175f373 (diff) | |
| download | glibc-8f5a90c270d2d1860e87764a14d739988c53e7b2.tar.gz | |
[AArch64] Support __mcount profiling.
| -rw-r--r-- | ports/ChangeLog.aarch64 | 5 | ||||
| -rw-r--r-- | 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 0090872dbe..3daf3ed495 100644 --- a/ports/ChangeLog.aarch64 +++ b/ports/ChangeLog.aarch64 @@ -1,3 +1,8 @@ +2013-09-24 Venkataramanan Kumar <venkataramanan.kumar@linaro.org> + + * sysdeps/aarch64/machine-gmon.h (__mcount): Accept parameter and + pass it to mcount_internal. + 2013-09-24 Venkataramanan Kumar <venkataramanan.kumar@linaro.org> * 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 4425965a48..5cc2941258 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 <http://www.gnu.org/licenses/>. */ -/* 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 <sysdep.h> @@ -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)); \ } |