diff options
| author | Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> | 2014-11-22 04:33:53 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-16 23:49:30 +0300 |
| commit | 6bcf9c1ff3ec22fd81eba336737d9865476509b1 (patch) | |
| tree | 7c4708991245cf4abf4161b5ffa9741c0ff2bb9c /tools/perf/arch | |
| parent | 813ccd15452ed34e97aa526ffc70d6d8e6c466c5 (diff) | |
| download | linux-6bcf9c1ff3ec22fd81eba336737d9865476509b1.tar.xz | |
perf tools powerpc: Use dwfl_report_elf() instead of offline.
dwfl_report_offline() works only when libraries are prelinked.
Replace dwfl_report_offline() with dwfl_report_elf() so we correctly
extract debug info even from libraries that are not prelinked.
Reported-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: http://lkml.kernel.org/r/20150114221045.GA17703@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch')
| -rw-r--r-- | tools/perf/arch/powerpc/util/skip-callchain-idx.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/tools/perf/arch/powerpc/util/skip-callchain-idx.c b/tools/perf/arch/powerpc/util/skip-callchain-idx.c index 3bb50eac5542..0c370f81e002 100644 --- a/tools/perf/arch/powerpc/util/skip-callchain-idx.c +++ b/tools/perf/arch/powerpc/util/skip-callchain-idx.c @@ -103,7 +103,7 @@ static Dwarf_Frame *get_eh_frame(Dwfl_Module *mod, Dwarf_Addr pc) return NULL; } - result = dwarf_cfi_addrframe(cfi, pc, &frame); + result = dwarf_cfi_addrframe(cfi, pc-bias, &frame); if (result) { pr_debug("%s(): %s\n", __func__, dwfl_errmsg(-1)); return NULL; @@ -128,7 +128,7 @@ static Dwarf_Frame *get_dwarf_frame(Dwfl_Module *mod, Dwarf_Addr pc) return NULL; } - result = dwarf_cfi_addrframe(cfi, pc, &frame); + result = dwarf_cfi_addrframe(cfi, pc-bias, &frame); if (result) { pr_debug("%s(): %s\n", __func__, dwfl_errmsg(-1)); return NULL; @@ -145,7 +145,7 @@ static Dwarf_Frame *get_dwarf_frame(Dwfl_Module *mod, Dwarf_Addr pc) * yet used) * -1 in case of errors */ -static int check_return_addr(struct dso *dso, Dwarf_Addr pc) +static int check_return_addr(struct dso *dso, u64 map_start, Dwarf_Addr pc) { int rc = -1; Dwfl *dwfl; @@ -155,6 +155,7 @@ static int check_return_addr(struct dso *dso, Dwarf_Addr pc) Dwarf_Addr start = pc; Dwarf_Addr end = pc; bool signalp; + const char *exec_file = dso->long_name; dwfl = dso->dwfl; @@ -165,8 +166,10 @@ static int check_return_addr(struct dso *dso, Dwarf_Addr pc) return -1; } - if (dwfl_report_offline(dwfl, "", dso->long_name, -1) == NULL) { - pr_debug("dwfl_report_offline() failed %s\n", + mod = dwfl_report_elf(dwfl, exec_file, exec_file, -1, + map_start, false); + if (!mod) { + pr_debug("dwfl_report_elf() failed %s\n", dwarf_errmsg(-1)); /* * We normally cache the DWARF debug info and never @@ -256,10 +259,10 @@ int arch_skip_callchain_idx(struct thread *thread, struct ip_callchain *chain) return skip_slot; } - rc = check_return_addr(dso, ip); + rc = check_return_addr(dso, al.map->start, ip); - pr_debug("DSO %s, nr %" PRIx64 ", ip 0x%" PRIx64 "rc %d\n", - dso->long_name, chain->nr, ip, rc); + pr_debug("[DSO %s, sym %s, ip 0x%" PRIx64 "] rc %d\n", + dso->long_name, al.sym->name, ip, rc); if (rc == 0) { /* |