4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sandipan Das <sandipan@xxxxxxxxxxxxx>
[ Upstream commit fa694160cca6dbba17c57dc7efec5f93feaf8795 ]
This makes sure that the SyS symbols are ignored for any powerpc system,
not just the big endian ones.
Reported-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sandipan Das <sandipan@xxxxxxxxxxxxx>
Reviewed-by: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx>
Acked-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Ravi Bangoria <ravi.bangoria@xxxxxxxxxxxxx>
Fixes: fb6d59423115 ("perf probe ppc: Use the right prefix when ignoring SyS symbols on ppc")
Link: http://lkml.kernel.org/r/20180828090848.1914-1-sandipan@xxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/perf/arch/powerpc/util/sym-handling.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/tools/perf/arch/powerpc/util/sym-handling.c
+++ b/tools/perf/arch/powerpc/util/sym-handling.c
@@ -27,15 +27,16 @@ void arch__elf_sym_adjust(GElf_Sym *sym)
#endif
#endif
-#if !defined(_CALL_ELF) || _CALL_ELF != 2
int arch__choose_best_symbol(struct symbol *syma,
struct symbol *symb __maybe_unused)
{
char *sym = syma->name;
+#if !defined(_CALL_ELF) || _CALL_ELF != 2
/* Skip over any initial dot */
if (*sym == '.')
sym++;
+#endif
/* Avoid "SyS" kernel syscall aliases */
if (strlen(sym) >= 3 && !strncmp(sym, "SyS", 3))
@@ -46,6 +47,7 @@ int arch__choose_best_symbol(struct symb
return SYMBOL_A;
}
+#if !defined(_CALL_ELF) || _CALL_ELF != 2
/* Allow matching against dot variants */
int arch__compare_symbol_names(const char *namea, const char *nameb)
{
