github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

perf tools: Fix is_compat_mode build break in ppc64

Browse Source 
Commit 54f9aa1092 ("tools/perf/powerpc/util: Add support to
handle compatible mode PVR for perf json events") introduced
to select proper JSON events in case of compat mode using
auxiliary vector. But this caused a compilation error in ppc64
Big Endian.

arch/powerpc/util/header.c: In function 'is_compat_mode':
arch/powerpc/util/header.c:20:21: error: cast to pointer from
integer of different size [-Werror=int-to-pointer-cast]
   20 |         if (!strcmp((char *)platform, (char *)base_platform))
      |                     ^
arch/powerpc/util/header.c:20:39: error: cast to pointer from
integer of different size [-Werror=int-to-pointer-cast]
   20 |         if (!strcmp((char *)platform, (char *)base_platform))
      |

Commit saved the getauxval(AT_BASE_PLATFORM) and getauxval(AT_PLATFORM)
return values in u64 which causes the compilation error.

Patch fixes this issue by changing u64 to "unsigned long".

Fixes: 54f9aa1092 ("tools/perf/powerpc/util: Add support to handle compatible mode PVR for perf json events")
Signed-off-by: Likhitha Korrapati <likhitha@linux.ibm.com>
Reviewed-by: Athira Rajeev <atrajeev@linux.ibm.com>
Link: https://lore.kernel.org/r/20250321100726.699956-1-likhitha@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Likhitha Korrapati 2025-03-21 15:37:26 +05:30 committed by Namhyung Kim
parent 9480cc14a9
commit 7e442be701
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/arch/powerpc/util/header.c
View File

@ -14,8 +14,8 @@
static bool is_compat_mode(void)
{
u64 base_platform = getauxval(AT_BASE_PLATFORM);
u64 platform = getauxval(AT_PLATFORM);
unsigned long base_platform = getauxval(AT_BASE_PLATFORM);
unsigned long platform = getauxval(AT_PLATFORM);
if (!strcmp((char *)platform, (char *)base_platform))
return false;