Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit fa694160 authored by Sandipan Das's avatar Sandipan Das Committed by Arnaldo Carvalho de Melo
Browse files

perf probe powerpc: Ignore SyS symbols irrespective of endianness 



This makes sure that the SyS symbols are ignored for any powerpc system,
not just the big endian ones.

Reported-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: default avatarSandipan Das <sandipan@linux.ibm.com>
Reviewed-by: default avatarKamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Acked-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Fixes: fb6d5942 ("perf probe ppc: Use the right prefix when ignoring SyS symbols on ppc")
Link: http://lkml.kernel.org/r/20180828090848.1914-1-sandipan@linux.ibm.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c9f23d2b

tools/perf/arch/powerpc/util/sym-handling.c

+3 −1
Original line number Diff line number Diff line
@@ -22,15 +22,16 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr) 


#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))
@@ -41,6 +42,7 @@ int arch__choose_best_symbol(struct symbol *syma, 
	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)

{