Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933527Ab3HGVP3 (ORCPT ); Wed, 7 Aug 2013 17:15:29 -0400 Received: from merlin.infradead.org ([205.233.59.134]:47101 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933415Ab3HGVLb (ORCPT ); Wed, 7 Aug 2013 17:11:31 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Adrian Hunter , David Ahern , Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Stephane Eranian , Arnaldo Carvalho de Melo Subject: [PATCH 28/47] perf tests: Adjust the vmlinux symtab matches kallsyms test Date: Wed, 7 Aug 2013 18:10:55 -0300 Message-Id: <1375909874-22073-29-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1375909874-22073-1-git-send-email-acme@infradead.org> References: <1375909874-22073-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4367 Lines: 122 From: Adrian Hunter The vmlinux maps now map to the dso and the symbol values are now file offsets. For comparison with kallsyms the virtual memory address is needed which is obtained by unmapping the symbol value. The "vmlinux symtab matches kallsyms" is adjusted accordingly. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1375875537-4509-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/vmlinux-kallsyms.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c index add1539..e2e1498 100644 --- a/tools/perf/tests/vmlinux-kallsyms.c +++ b/tools/perf/tests/vmlinux-kallsyms.c @@ -25,6 +25,7 @@ int test__vmlinux_matches_kallsyms(void) struct machine kallsyms, vmlinux; enum map_type type = MAP__FUNCTION; struct ref_reloc_sym ref_reloc_sym = { .name = "_stext", }; + u64 mem_start, mem_end; /* * Step 1: @@ -123,10 +124,14 @@ int test__vmlinux_matches_kallsyms(void) if (sym->start == sym->end) continue; - first_pair = machine__find_kernel_symbol(&kallsyms, type, sym->start, NULL, NULL); + mem_start = vmlinux_map->unmap_ip(vmlinux_map, sym->start); + mem_end = vmlinux_map->unmap_ip(vmlinux_map, sym->end); + + first_pair = machine__find_kernel_symbol(&kallsyms, type, + mem_start, NULL, NULL); pair = first_pair; - if (pair && pair->start == sym->start) { + if (pair && pair->start == mem_start) { next_pair: if (strcmp(sym->name, pair->name) == 0) { /* @@ -138,10 +143,11 @@ next_pair: * off the real size. More than that and we * _really_ have a problem. */ - s64 skew = sym->end - pair->end; + s64 skew = mem_end - pair->end; if (llabs(skew) >= page_size) pr_debug("%#" PRIx64 ": diff end addr for %s v: %#" PRIx64 " k: %#" PRIx64 "\n", - sym->start, sym->name, sym->end, pair->end); + mem_start, sym->name, mem_end, + pair->end); /* * Do not count this as a failure, because we @@ -159,7 +165,7 @@ detour: if (nnd) { struct symbol *next = rb_entry(nnd, struct symbol, rb_node); - if (next->start == sym->start) { + if (next->start == mem_start) { pair = next; goto next_pair; } @@ -172,10 +178,11 @@ detour: } pr_debug("%#" PRIx64 ": diff name v: %s k: %s\n", - sym->start, sym->name, pair->name); + mem_start, sym->name, pair->name); } } else - pr_debug("%#" PRIx64 ": %s not on kallsyms\n", sym->start, sym->name); + pr_debug("%#" PRIx64 ": %s not on kallsyms\n", + mem_start, sym->name); err = -1; } @@ -208,16 +215,19 @@ detour: for (nd = rb_first(&vmlinux.kmaps.maps[type]); nd; nd = rb_next(nd)) { struct map *pos = rb_entry(nd, struct map, rb_node), *pair; - pair = map_groups__find(&kallsyms.kmaps, type, pos->start); + mem_start = vmlinux_map->unmap_ip(vmlinux_map, pos->start); + mem_end = vmlinux_map->unmap_ip(vmlinux_map, pos->end); + + pair = map_groups__find(&kallsyms.kmaps, type, mem_start); if (pair == NULL || pair->priv) continue; - if (pair->start == pos->start) { + if (pair->start == mem_start) { pair->priv = 1; pr_info(" %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as", pos->start, pos->end, pos->pgoff, pos->dso->name); - if (pos->pgoff != pair->pgoff || pos->end != pair->end) - pr_info(": \n*%" PRIx64 "-%" PRIx64 " %" PRIx64 "", + if (mem_end != pair->end) + pr_info(":\n*%" PRIx64 "-%" PRIx64 " %" PRIx64, pair->start, pair->end, pair->pgoff); pr_info(" %s\n", pair->dso->name); pair->priv = 1; -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/