Commit-ID: a1ae565528757f26d315897929b6fe58c5647915 Gitweb: http://git.kernel.org/tip/a1ae565528757f26d315897929b6fe58c5647915 Author: Namhyung Kim <namhy...@kernel.org> AuthorDate: Mon, 24 Sep 2012 17:14:59 +0900 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 24 Sep 2012 11:45:22 -0300
perf header: Add ->process callbacks to most of features >From now on each feature information is processed and saved in perf header so that it can be used wherever needed. The BRANCH_STACK feature is an exception since it needs nothing to be done. Signed-off-by: Namhyung Kim <namhy...@kernel.org> Cc: David Ahern <dsah...@gmail.com> Cc: Ingo Molnar <mi...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Robert Richter <robert.rich...@amd.com> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/r/1348474503-15070-3-git-send-email-namhy...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/header.c | 319 ++++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 308 insertions(+), 11 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index ad72b28..d74b58d 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -22,6 +22,7 @@ #include "cpumap.h" #include "pmu.h" #include "vdso.h" +#include "strbuf.h" static bool no_buildid_cache = false; @@ -1673,6 +1674,99 @@ static int process_build_id(struct perf_file_section *section, return 0; } +static int process_hostname(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.hostname = do_read_string(fd, ph); + return ph->env.hostname ? 0 : -ENOMEM; +} + +static int process_osrelease(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.os_release = do_read_string(fd, ph); + return ph->env.os_release ? 0 : -ENOMEM; +} + +static int process_version(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.version = do_read_string(fd, ph); + return ph->env.version ? 0 : -ENOMEM; +} + +static int process_arch(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.arch = do_read_string(fd, ph); + return ph->env.arch ? 0 : -ENOMEM; +} + +static int process_nrcpus(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + size_t ret; + u32 nr; + + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + return -1; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_cpus_online = nr; + + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + return -1; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_cpus_avail = nr; + return 0; +} + +static int process_cpudesc(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.cpu_desc = do_read_string(fd, ph); + return ph->env.cpu_desc ? 0 : -ENOMEM; +} + +static int process_cpuid(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + ph->env.cpuid = do_read_string(fd, ph); + return ph->env.cpuid ? 0 : -ENOMEM; +} + +static int process_total_mem(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + uint64_t mem; + size_t ret; + + ret = read(fd, &mem, sizeof(mem)); + if (ret != sizeof(mem)) + return -1; + + if (ph->needs_swap) + mem = bswap_64(mem); + + ph->env.total_mem = mem; + return 0; +} + static char *read_cpuid(struct perf_header *ph, int fd) { return do_read_string(fd, ph); @@ -1728,6 +1822,208 @@ process_event_desc(struct perf_file_section *section __maybe_unused, return 0; } +static int process_cmdline(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + size_t ret; + char *str; + u32 nr, i; + struct strbuf sb; + + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + return -1; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_cmdline = nr; + strbuf_init(&sb, 128); + + for (i = 0; i < nr; i++) { + str = do_read_string(fd, ph); + if (!str) + goto error; + + /* include a NULL character at the end */ + strbuf_add(&sb, str, strlen(str) + 1); + free(str); + } + ph->env.cmdline = strbuf_detach(&sb, NULL); + return 0; + +error: + strbuf_release(&sb); + return -1; +} + +static int process_cpu_topology(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + size_t ret; + u32 nr, i; + char *str; + struct strbuf sb; + + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + return -1; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_sibling_cores = nr; + strbuf_init(&sb, 128); + + for (i = 0; i < nr; i++) { + str = do_read_string(fd, ph); + if (!str) + goto error; + + /* include a NULL character at the end */ + strbuf_add(&sb, str, strlen(str) + 1); + free(str); + } + ph->env.sibling_cores = strbuf_detach(&sb, NULL); + + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + return -1; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_sibling_threads = nr; + + for (i = 0; i < nr; i++) { + str = do_read_string(fd, ph); + if (!str) + goto error; + + /* include a NULL character at the end */ + strbuf_add(&sb, str, strlen(str) + 1); + free(str); + } + ph->env.sibling_threads = strbuf_detach(&sb, NULL); + return 0; + +error: + strbuf_release(&sb); + return -1; +} + +static int process_numa_topology(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + size_t ret; + u32 nr, node, i; + char *str; + uint64_t mem_total, mem_free; + struct strbuf sb; + + /* nr nodes */ + ret = read(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + goto error; + + if (ph->needs_swap) + nr = bswap_32(nr); + + ph->env.nr_numa_nodes = nr; + strbuf_init(&sb, 256); + + for (i = 0; i < nr; i++) { + /* node number */ + ret = read(fd, &node, sizeof(node)); + if (ret != sizeof(node)) + goto error; + + ret = read(fd, &mem_total, sizeof(u64)); + if (ret != sizeof(u64)) + goto error; + + ret = read(fd, &mem_free, sizeof(u64)); + if (ret != sizeof(u64)) + goto error; + + if (ph->needs_swap) { + node = bswap_32(node); + mem_total = bswap_64(mem_total); + mem_free = bswap_64(mem_free); + } + + strbuf_addf(&sb, "%u:%"PRIu64":%"PRIu64":", + node, mem_total, mem_free); + + str = do_read_string(fd, ph); + if (!str) + goto error; + + /* include a NULL character at the end */ + strbuf_add(&sb, str, strlen(str) + 1); + free(str); + } + ph->env.numa_nodes = strbuf_detach(&sb, NULL); + return 0; + +error: + strbuf_release(&sb); + return -1; +} + +static int process_pmu_mappings(struct perf_file_section *section __maybe_unused, + struct perf_header *ph, int feat __maybe_unused, + int fd, void *data __maybe_unused) +{ + size_t ret; + char *name; + u32 pmu_num; + u32 type; + struct strbuf sb; + + ret = read(fd, &pmu_num, sizeof(pmu_num)); + if (ret != sizeof(pmu_num)) + return -1; + + if (ph->needs_swap) + pmu_num = bswap_32(pmu_num); + + if (!pmu_num) { + pr_debug("pmu mappings not available\n"); + return 0; + } + + ph->env.nr_pmu_mappings = pmu_num; + strbuf_init(&sb, 128); + + while (pmu_num) { + if (read(fd, &type, sizeof(type)) != sizeof(type)) + goto error; + if (ph->needs_swap) + type = bswap_32(type); + + name = do_read_string(fd, ph); + if (!name) + goto error; + + strbuf_addf(&sb, "%u:%s", type, name); + /* include a NULL character at the end */ + strbuf_add(&sb, "", 1); + + free(name); + pmu_num--; + } + ph->env.pmu_mappings = strbuf_detach(&sb, NULL); + return 0; + +error: + strbuf_release(&sb); + return -1; +} + struct feature_ops { int (*write)(int fd, struct perf_header *h, struct perf_evlist *evlist); void (*print)(struct perf_header *h, int fd, FILE *fp); @@ -1745,10 +2041,11 @@ struct feature_ops { .process = process_##func } #define FEAT_OPF(n, func) \ [n] = { .name = #n, .write = write_##func, .print = print_##func, \ - .full_only = true } + .process = process_##func, .full_only = true } #define FEAT_OPA_R(n, func) \ [n] = { .name = #n, .write = write_##func, .print = print_##func, \ - .read = read_##func } + .read = read_##func, .process = process_##func, \ + .full_only = true } /* feature_ops not implemented: */ #define print_tracing_data NULL @@ -1757,20 +2054,20 @@ struct feature_ops { static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = { FEAT_OPP(HEADER_TRACING_DATA, tracing_data), FEAT_OPP(HEADER_BUILD_ID, build_id), - FEAT_OPA(HEADER_HOSTNAME, hostname), - FEAT_OPA(HEADER_OSRELEASE, osrelease), - FEAT_OPA(HEADER_VERSION, version), - FEAT_OPA(HEADER_ARCH, arch), - FEAT_OPA(HEADER_NRCPUS, nrcpus), - FEAT_OPA(HEADER_CPUDESC, cpudesc), + FEAT_OPP(HEADER_HOSTNAME, hostname), + FEAT_OPP(HEADER_OSRELEASE, osrelease), + FEAT_OPP(HEADER_VERSION, version), + FEAT_OPP(HEADER_ARCH, arch), + FEAT_OPP(HEADER_NRCPUS, nrcpus), + FEAT_OPP(HEADER_CPUDESC, cpudesc), FEAT_OPA_R(HEADER_CPUID, cpuid), - FEAT_OPA(HEADER_TOTAL_MEM, total_mem), + FEAT_OPP(HEADER_TOTAL_MEM, total_mem), FEAT_OPP(HEADER_EVENT_DESC, event_desc), - FEAT_OPA(HEADER_CMDLINE, cmdline), + FEAT_OPP(HEADER_CMDLINE, cmdline), FEAT_OPF(HEADER_CPU_TOPOLOGY, cpu_topology), FEAT_OPF(HEADER_NUMA_TOPOLOGY, numa_topology), FEAT_OPA(HEADER_BRANCH_STACK, branch_stack), - FEAT_OPA(HEADER_PMU_MAPPINGS, pmu_mappings), + FEAT_OPP(HEADER_PMU_MAPPINGS, pmu_mappings), }; struct header_print_data { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
