From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Clark Williams <williams@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Sandipan Das <sandipan@linux.ibm.com>,
Jiri Olsa <jolsa@redhat.com>,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 12/13] perf probe powerpc: Ignore SyS symbols irrespective of endianness
Date: Mon, 3 Sep 2018 11:52:23 -0300 [thread overview]
Message-ID: <20180903145224.12318-13-acme@kernel.org> (raw)
In-Reply-To: <20180903145224.12318-1-acme@kernel.org>
From: Sandipan Das <sandipan@linux.ibm.com>
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@linux.vnet.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
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@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/arch/powerpc/util/sym-handling.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c
index 20e7d74d86cd..10a44e946f77 100644
--- a/tools/perf/arch/powerpc/util/sym-handling.c
+++ b/tools/perf/arch/powerpc/util/sym-handling.c
@@ -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)
{
--
2.14.4
next prev parent reply other threads:[~2018-09-03 14:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-03 14:52 [GIT PULL 00/13] perf/urgent fixes Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 01/13] perf annotate: Properly interpret indirect call Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 02/13] perf tests: Add breakpoint modify tests Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 03/13] perf/hw_breakpoint: Modify breakpoint even if the new attr has disabled set Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 04/13] perf/hw_breakpoint: Remove superfluous bp->attr.disabled = 0 Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 05/13] perf/hw_breakpoint: Enable breakpoint in modify_user_hw_breakpoint Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 06/13] perf/hw_breakpoint: Simplify breakpoint enable in perf_event_modify_breakpoint Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 07/13] perf arm64: Fix include path for asm-generic/unistd.h Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 08/13] perf evsel: Fix potential null pointer dereference in perf_evsel__new_idx() Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 09/13] perf tools: Streamline bpf examples and headers installation Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 10/13] perf util: Fix bad memory access in trace info Arnaldo Carvalho de Melo
2018-09-03 14:52 ` [PATCH 11/13] perf event-parse: Use fixed size string for comms Arnaldo Carvalho de Melo
2018-09-03 14:52 ` Arnaldo Carvalho de Melo [this message]
2018-09-03 14:52 ` [PATCH 13/13] perf annotate: Fix parsing aarch64 branch instructions after objdump update Arnaldo Carvalho de Melo
2018-09-09 19:39 ` [GIT PULL 00/13] perf/urgent fixes Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180903145224.12318-13-acme@kernel.org \
--to=acme@kernel.org \
--cc=acme@redhat.com \
--cc=jolsa@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=ravi.bangoria@linux.ibm.com \
--cc=sandipan@linux.ibm.com \
--cc=williams@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).