Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "The tree contains three fixes: - Two tooling fixes - Reversal of the new 'MMAP2' extended mmap record ABI, introduced in this merge window. (Patches were proposed to fix it but it was all a bit late and we felt it's safer to just delay the ABI one more kernel release and do it right)" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Disable PERF_RECORD_MMAP2 support perf scripting perl: Fix build error on Fedora 12 perf probe: Fix to initialize fname always before use it
This commit is contained in:
commit
e2756f5e0f
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@ -6767,6 +6767,10 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
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if (ret)
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return -EFAULT;
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/* disabled for now */
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if (attr->mmap2)
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return -EINVAL;
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if (attr->__reserved_1)
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return -EINVAL;
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@ -187,7 +187,7 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
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return -1;
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}
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event->header.type = PERF_RECORD_MMAP2;
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event->header.type = PERF_RECORD_MMAP;
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/*
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* Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
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*/
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@ -198,7 +198,6 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
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char prot[5];
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char execname[PATH_MAX];
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char anonstr[] = "//anon";
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unsigned int ino;
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size_t size;
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ssize_t n;
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@ -209,13 +208,10 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
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strcpy(execname, "");
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/* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */
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n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %s\n",
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&event->mmap2.start, &event->mmap2.len, prot,
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&event->mmap2.pgoff, &event->mmap2.maj,
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&event->mmap2.min,
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&ino, execname);
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event->mmap2.ino = (u64)ino;
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n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n",
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&event->mmap.start, &event->mmap.len, prot,
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&event->mmap.pgoff,
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execname);
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if (n != 8)
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continue;
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@ -227,15 +223,15 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
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strcpy(execname, anonstr);
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size = strlen(execname) + 1;
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memcpy(event->mmap2.filename, execname, size);
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memcpy(event->mmap.filename, execname, size);
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size = PERF_ALIGN(size, sizeof(u64));
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event->mmap2.len -= event->mmap.start;
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event->mmap2.header.size = (sizeof(event->mmap2) -
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(sizeof(event->mmap2.filename) - size));
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memset(event->mmap2.filename + size, 0, machine->id_hdr_size);
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event->mmap2.header.size += machine->id_hdr_size;
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event->mmap2.pid = tgid;
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event->mmap2.tid = pid;
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event->mmap.len -= event->mmap.start;
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event->mmap.header.size = (sizeof(event->mmap) -
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(sizeof(event->mmap.filename) - size));
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memset(event->mmap.filename + size, 0, machine->id_hdr_size);
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event->mmap.header.size += machine->id_hdr_size;
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event->mmap.pid = tgid;
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event->mmap.tid = pid;
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if (process(tool, event, &synth_sample, machine) != 0) {
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rc = -1;
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@ -678,7 +678,6 @@ void perf_evsel__config(struct perf_evsel *evsel,
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attr->sample_type |= PERF_SAMPLE_WEIGHT;
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attr->mmap = track;
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attr->mmap2 = track && !perf_missing_features.mmap2;
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attr->comm = track;
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/*
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@ -1357,10 +1357,10 @@ int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
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goto post;
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}
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fname = dwarf_decl_file(&spdie);
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if (addr == (unsigned long)baseaddr) {
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/* Function entry - Relative line number is 0 */
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lineno = baseline;
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fname = dwarf_decl_file(&spdie);
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goto post;
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}
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@ -282,7 +282,7 @@ static void perl_process_tracepoint(union perf_event *perf_event __maybe_unused,
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event = find_cache_event(evsel);
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if (!event)
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die("ug! no event found for type %" PRIu64, evsel->attr.config);
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die("ug! no event found for type %" PRIu64, (u64)evsel->attr.config);
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pid = raw_field_value(event, "common_pid", data);
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