d2396999c9
If a stripped binary is placed in the cache, the user is in a situation where there's a cached elf file present, but it doesn't have any symtab to use for name resolution. Grab the debuginfo for binaries that don't end in .ko. This yields a better chance of resolving symbols from older traces. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-7-git-send-email-kjlx@templeofstupid.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
#ifndef PERF_BUILD_ID_H_
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#define PERF_BUILD_ID_H_ 1
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#define BUILD_ID_SIZE 20
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#define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1)
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#include "tool.h"
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#include "namespaces.h"
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#include <linux/types.h>
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extern struct perf_tool build_id__mark_dso_hit_ops;
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struct dso;
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int build_id__sprintf(const u8 *build_id, int len, char *bf);
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int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
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int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
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char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
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size_t size);
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char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
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bool is_debug);
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int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
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struct perf_sample *sample, struct perf_evsel *evsel,
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struct machine *machine);
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int dsos__hit_all(struct perf_session *session);
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bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
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int perf_session__write_buildid_table(struct perf_session *session, int fd);
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int perf_session__cache_build_ids(struct perf_session *session);
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char *build_id_cache__origname(const char *sbuild_id);
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char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size);
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char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
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struct nsinfo *nsi, bool is_kallsyms,
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bool is_vdso);
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struct strlist;
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struct strlist *build_id_cache__list_all(bool validonly);
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char *build_id_cache__complement(const char *incomplete_sbuild_id);
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int build_id_cache__list_build_ids(const char *pathname, struct nsinfo *nsi,
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struct strlist **result);
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bool build_id_cache__cached(const char *sbuild_id);
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int build_id_cache__add_s(const char *sbuild_id,
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const char *name, struct nsinfo *nsi,
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bool is_kallsyms, bool is_vdso);
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int build_id_cache__remove_s(const char *sbuild_id);
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extern char buildid_dir[];
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void set_buildid_dir(const char *dir);
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void disable_buildid_cache(void);
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#endif
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