lkml.org 
[lkml]   [2017]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/urgent] perf test: Fix vmlinux failure on s390x
Commit-ID:  b28503a3fe6400757817e4460090f96bc1b9d6e7
Gitweb: https://git.kernel.org/tip/b28503a3fe6400757817e4460090f96bc1b9d6e7
Author: Thomas Richter <tmricht@linux.vnet.ibm.com>
AuthorDate: Fri, 15 Sep 2017 09:14:03 +0200
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 28 Sep 2017 13:01:42 -0300

perf test: Fix vmlinux failure on s390x

On s390x perf test 1 failed. It turned out that commit 4a084ecfc821
("perf report: Fix module symbol adjustment for s390x") was incorrect.
The previous implementation in dso__load_sym() is also suitable for
s390x.

Therefore this patch undoes commit 4a084ecfc821.

Signed-off-by: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Zvonko Kosic <zvonko.kosic@de.ibm.com>
Fixes: 4a084ecfc821 ("perf report: Fix module symbol adjustment for s390x")
LPU-Reference: 20170915071404.58398-1-tmricht@linux.vnet.ibm.com
Link: http://lkml.kernel.org/n/tip-5ani7ly57zji7s0hmzkx416l@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/arch/s390/util/sym-handling.c | 8 --------
tools/perf/util/symbol-elf.c | 8 +-------
tools/perf/util/symbol.h | 3 ---
3 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/tools/perf/arch/s390/util/sym-handling.c b/tools/perf/arch/s390/util/sym-handling.c
index e103f6e..581d4c5 100644
--- a/tools/perf/arch/s390/util/sym-handling.c
+++ b/tools/perf/arch/s390/util/sym-handling.c
@@ -18,12 +18,4 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr)
return false;
return ehdr.e_type == ET_REL || ehdr.e_type == ET_DYN;
}
-
-void arch__adjust_sym_map_offset(GElf_Sym *sym,
- GElf_Shdr *shdr __maybe_unused,
- struct map *map)
-{
- if (map->type == MAP__FUNCTION)
- sym->st_value += map->start;
-}
#endif
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 5c39f42..9cf781f 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -810,12 +810,6 @@ static u64 ref_reloc(struct kmap *kmap)
void __weak arch__sym_update(struct symbol *s __maybe_unused,
GElf_Sym *sym __maybe_unused) { }

-void __weak arch__adjust_sym_map_offset(GElf_Sym *sym, GElf_Shdr *shdr,
- struct map *map __maybe_unused)
-{
- sym->st_value -= shdr->sh_addr - shdr->sh_offset;
-}
-
int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
struct symsrc *runtime_ss, int kmodule)
{
@@ -996,7 +990,7 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,

/* Adjust symbol to map to file offset */
if (adjust_kernel_syms)
- arch__adjust_sym_map_offset(&sym, &shdr, map);
+ sym.st_value -= shdr.sh_addr - shdr.sh_offset;

if (strcmp(section_name,
(curr_dso->short_name +
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2bd6a1f..aad99e7 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -344,9 +344,6 @@ int setup_intlist(struct intlist **list, const char *list_str,
#ifdef HAVE_LIBELF_SUPPORT
bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
void arch__sym_update(struct symbol *s, GElf_Sym *sym);
-void arch__adjust_sym_map_offset(GElf_Sym *sym,
- GElf_Shdr *shdr __maybe_unused,
- struct map *map __maybe_unused);
#endif

#define SYMBOL_A 0
\
 
 \ /
  Last update: 2017-09-29 22:09    [W:0.030 / U:3.656 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site