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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/util/annotate.c
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tools/perf/util/annotate.c3214
1 files changed, 3214 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
new file mode 100644
index 000000000..c9078cee6
--- /dev/null
+++ b/tools/perf/util/annotate.c
@@ -0,0 +1,3214 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Parts came from builtin-annotate.c, see those files for further
+ * copyright notes.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <stdlib.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
+#include <linux/btf.h>
+#include "util.h" // hex_width()
+#include "ui/ui.h"
+#include "sort.h"
+#include "build-id.h"
+#include "color.h"
+#include "config.h"
+#include "dso.h"
+#include "env.h"
+#include "map.h"
+#include "maps.h"
+#include "symbol.h"
+#include "srcline.h"
+#include "units.h"
+#include "debug.h"
+#include "annotate.h"
+#include "evsel.h"
+#include "evlist.h"
+#include "bpf-event.h"
+#include "block-range.h"
+#include "string2.h"
+#include "util/event.h"
+#include "arch/common.h"
+#include <regex.h>
+#include <pthread.h>
+#include <linux/bitops.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <subcmd/parse-options.h>
+#include <subcmd/run-command.h>
+
+/* FIXME: For the HE_COLORSET */
+#include "ui/browser.h"
+
+/*
+ * FIXME: Using the same values as slang.h,
+ * but that header may not be available everywhere
+ */
+#define LARROW_CHAR ((unsigned char)',')
+#define RARROW_CHAR ((unsigned char)'+')
+#define DARROW_CHAR ((unsigned char)'.')
+#define UARROW_CHAR ((unsigned char)'-')
+
+#include <linux/ctype.h>
+
+struct annotation_options annotation__default_options = {
+ .use_offset = true,
+ .jump_arrows = true,
+ .annotate_src = true,
+ .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS,
+ .percent_type = PERCENT_PERIOD_LOCAL,
+};
+
+static regex_t file_lineno;
+
+static struct ins_ops *ins__find(struct arch *arch, const char *name);
+static void ins__sort(struct arch *arch);
+static int disasm_line__parse(char *line, const char **namep, char **rawp);
+
+struct arch {
+ const char *name;
+ struct ins *instructions;
+ size_t nr_instructions;
+ size_t nr_instructions_allocated;
+ struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name);
+ bool sorted_instructions;
+ bool initialized;
+ void *priv;
+ unsigned int model;
+ unsigned int family;
+ int (*init)(struct arch *arch, char *cpuid);
+ bool (*ins_is_fused)(struct arch *arch, const char *ins1,
+ const char *ins2);
+ struct {
+ char comment_char;
+ char skip_functions_char;
+ } objdump;
+};
+
+static struct ins_ops call_ops;
+static struct ins_ops dec_ops;
+static struct ins_ops jump_ops;
+static struct ins_ops mov_ops;
+static struct ins_ops nop_ops;
+static struct ins_ops lock_ops;
+static struct ins_ops ret_ops;
+
+static int arch__grow_instructions(struct arch *arch)
+{
+ struct ins *new_instructions;
+ size_t new_nr_allocated;
+
+ if (arch->nr_instructions_allocated == 0 && arch->instructions)
+ goto grow_from_non_allocated_table;
+
+ new_nr_allocated = arch->nr_instructions_allocated + 128;
+ new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
+ if (new_instructions == NULL)
+ return -1;
+
+out_update_instructions:
+ arch->instructions = new_instructions;
+ arch->nr_instructions_allocated = new_nr_allocated;
+ return 0;
+
+grow_from_non_allocated_table:
+ new_nr_allocated = arch->nr_instructions + 128;
+ new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
+ if (new_instructions == NULL)
+ return -1;
+
+ memcpy(new_instructions, arch->instructions, arch->nr_instructions);
+ goto out_update_instructions;
+}
+
+static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
+{
+ struct ins *ins;
+
+ if (arch->nr_instructions == arch->nr_instructions_allocated &&
+ arch__grow_instructions(arch))
+ return -1;
+
+ ins = &arch->instructions[arch->nr_instructions];
+ ins->name = strdup(name);
+ if (!ins->name)
+ return -1;
+
+ ins->ops = ops;
+ arch->nr_instructions++;
+
+ ins__sort(arch);
+ return 0;
+}
+
+#include "arch/arc/annotate/instructions.c"
+#include "arch/arm/annotate/instructions.c"
+#include "arch/arm64/annotate/instructions.c"
+#include "arch/csky/annotate/instructions.c"
+#include "arch/x86/annotate/instructions.c"
+#include "arch/powerpc/annotate/instructions.c"
+#include "arch/s390/annotate/instructions.c"
+#include "arch/sparc/annotate/instructions.c"
+
+static struct arch architectures[] = {
+ {
+ .name = "arc",
+ .init = arc__annotate_init,
+ },
+ {
+ .name = "arm",
+ .init = arm__annotate_init,
+ },
+ {
+ .name = "arm64",
+ .init = arm64__annotate_init,
+ },
+ {
+ .name = "csky",
+ .init = csky__annotate_init,
+ },
+ {
+ .name = "x86",
+ .init = x86__annotate_init,
+ .instructions = x86__instructions,
+ .nr_instructions = ARRAY_SIZE(x86__instructions),
+ .ins_is_fused = x86__ins_is_fused,
+ .objdump = {
+ .comment_char = '#',
+ },
+ },
+ {
+ .name = "powerpc",
+ .init = powerpc__annotate_init,
+ },
+ {
+ .name = "s390",
+ .init = s390__annotate_init,
+ .objdump = {
+ .comment_char = '#',
+ },
+ },
+ {
+ .name = "sparc",
+ .init = sparc__annotate_init,
+ .objdump = {
+ .comment_char = '#',
+ },
+ },
+};
+
+static void ins__delete(struct ins_operands *ops)
+{
+ if (ops == NULL)
+ return;
+ zfree(&ops->source.raw);
+ zfree(&ops->source.name);
+ zfree(&ops->target.raw);
+ zfree(&ops->target.name);
+}
+
+static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
+}
+
+int ins__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ if (ins->ops->scnprintf)
+ return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
+
+ return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
+}
+
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
+{
+ if (!arch || !arch->ins_is_fused)
+ return false;
+
+ return arch->ins_is_fused(arch, ins1, ins2);
+}
+
+static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
+{
+ char *endptr, *tok, *name;
+ struct map *map = ms->map;
+ struct addr_map_symbol target = {
+ .ms = { .map = map, },
+ };
+
+ ops->target.addr = strtoull(ops->raw, &endptr, 16);
+
+ name = strchr(endptr, '<');
+ if (name == NULL)
+ goto indirect_call;
+
+ name++;
+
+ if (arch->objdump.skip_functions_char &&
+ strchr(name, arch->objdump.skip_functions_char))
+ return -1;
+
+ tok = strchr(name, '>');
+ if (tok == NULL)
+ return -1;
+
+ *tok = '\0';
+ ops->target.name = strdup(name);
+ *tok = '>';
+
+ if (ops->target.name == NULL)
+ return -1;
+find_target:
+ target.addr = map__objdump_2mem(map, ops->target.addr);
+
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ return 0;
+
+indirect_call:
+ tok = strchr(endptr, '*');
+ if (tok != NULL) {
+ endptr++;
+
+ /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx).
+ * Do not parse such instruction. */
+ if (strstr(endptr, "(%r") == NULL)
+ ops->target.addr = strtoull(endptr, NULL, 16);
+ }
+ goto find_target;
+}
+
+static int call__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ if (ops->target.sym)
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
+
+ if (ops->target.addr == 0)
+ return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
+
+ if (ops->target.name)
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
+
+ return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
+}
+
+static struct ins_ops call_ops = {
+ .parse = call__parse,
+ .scnprintf = call__scnprintf,
+};
+
+bool ins__is_call(const struct ins *ins)
+{
+ return ins->ops == &call_ops || ins->ops == &s390_call_ops;
+}
+
+/*
+ * Prevents from matching commas in the comment section, e.g.:
+ * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast
+ *
+ * and skip comma as part of function arguments, e.g.:
+ * 1d8b4ac <linemap_lookup(line_maps const*, unsigned int)+0xcc>
+ */
+static inline const char *validate_comma(const char *c, struct ins_operands *ops)
+{
+ if (ops->raw_comment && c > ops->raw_comment)
+ return NULL;
+
+ if (ops->raw_func_start && c > ops->raw_func_start)
+ return NULL;
+
+ return c;
+}
+
+static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
+{
+ struct map *map = ms->map;
+ struct symbol *sym = ms->sym;
+ struct addr_map_symbol target = {
+ .ms = { .map = map, },
+ };
+ const char *c = strchr(ops->raw, ',');
+ u64 start, end;
+
+ ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
+ ops->raw_func_start = strchr(ops->raw, '<');
+
+ c = validate_comma(c, ops);
+
+ /*
+ * Examples of lines to parse for the _cpp_lex_token@@Base
+ * function:
+ *
+ * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92>
+ * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72>
+ *
+ * The first is a jump to an offset inside the same function,
+ * the second is to another function, i.e. that 0xa72 is an
+ * offset in the cpp_named_operator2name@@base function.
+ */
+ /*
+ * skip over possible up to 2 operands to get to address, e.g.:
+ * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
+ */
+ if (c++ != NULL) {
+ ops->target.addr = strtoull(c, NULL, 16);
+ if (!ops->target.addr) {
+ c = strchr(c, ',');
+ c = validate_comma(c, ops);
+ if (c++ != NULL)
+ ops->target.addr = strtoull(c, NULL, 16);
+ }
+ } else {
+ ops->target.addr = strtoull(ops->raw, NULL, 16);
+ }
+
+ target.addr = map__objdump_2mem(map, ops->target.addr);
+ start = map->unmap_ip(map, sym->start),
+ end = map->unmap_ip(map, sym->end);
+
+ ops->target.outside = target.addr < start || target.addr > end;
+
+ /*
+ * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
+
+ cpp_named_operator2name@@Base+0xa72
+
+ * Point to a place that is after the cpp_named_operator2name
+ * boundaries, i.e. in the ELF symbol table for cc1
+ * cpp_named_operator2name is marked as being 32-bytes long, but it in
+ * fact is much larger than that, so we seem to need a symbols__find()
+ * routine that looks for >= current->start and < next_symbol->start,
+ * possibly just for C++ objects?
+ *
+ * For now lets just make some progress by marking jumps to outside the
+ * current function as call like.
+ *
+ * Actual navigation will come next, with further understanding of how
+ * the symbol searching and disassembly should be done.
+ */
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ if (!ops->target.outside) {
+ ops->target.offset = target.addr - start;
+ ops->target.offset_avail = true;
+ } else {
+ ops->target.offset_avail = false;
+ }
+
+ return 0;
+}
+
+static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ const char *c;
+
+ if (!ops->target.addr || ops->target.offset < 0)
+ return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
+
+ if (ops->target.outside && ops->target.sym != NULL)
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
+
+ c = strchr(ops->raw, ',');
+ c = validate_comma(c, ops);
+
+ if (c != NULL) {
+ const char *c2 = strchr(c + 1, ',');
+
+ c2 = validate_comma(c2, ops);
+ /* check for 3-op insn */
+ if (c2 != NULL)
+ c = c2;
+ c++;
+
+ /* mirror arch objdump's space-after-comma style */
+ if (*c == ' ')
+ c++;
+ }
+
+ return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
+ ins->name, c ? c - ops->raw : 0, ops->raw,
+ ops->target.offset);
+}
+
+static struct ins_ops jump_ops = {
+ .parse = jump__parse,
+ .scnprintf = jump__scnprintf,
+};
+
+bool ins__is_jump(const struct ins *ins)
+{
+ return ins->ops == &jump_ops;
+}
+
+static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
+{
+ char *endptr, *name, *t;
+
+ if (strstr(raw, "(%rip)") == NULL)
+ return 0;
+
+ *addrp = strtoull(comment, &endptr, 16);
+ if (endptr == comment)
+ return 0;
+ name = strchr(endptr, '<');
+ if (name == NULL)
+ return -1;
+
+ name++;
+
+ t = strchr(name, '>');
+ if (t == NULL)
+ return 0;
+
+ *t = '\0';
+ *namep = strdup(name);
+ *t = '>';
+
+ return 0;
+}
+
+static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
+{
+ ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
+ if (ops->locked.ops == NULL)
+ return 0;
+
+ if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
+ goto out_free_ops;
+
+ ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
+
+ if (ops->locked.ins.ops == NULL)
+ goto out_free_ops;
+
+ if (ops->locked.ins.ops->parse &&
+ ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
+ goto out_free_ops;
+
+ return 0;
+
+out_free_ops:
+ zfree(&ops->locked.ops);
+ return 0;
+}
+
+static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ int printed;
+
+ if (ops->locked.ins.ops == NULL)
+ return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
+
+ printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
+ return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
+ size - printed, ops->locked.ops, max_ins_name);
+}
+
+static void lock__delete(struct ins_operands *ops)
+{
+ struct ins *ins = &ops->locked.ins;
+
+ if (ins->ops && ins->ops->free)
+ ins->ops->free(ops->locked.ops);
+ else
+ ins__delete(ops->locked.ops);
+
+ zfree(&ops->locked.ops);
+ zfree(&ops->target.raw);
+ zfree(&ops->target.name);
+}
+
+static struct ins_ops lock_ops = {
+ .free = lock__delete,
+ .parse = lock__parse,
+ .scnprintf = lock__scnprintf,
+};
+
+static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
+{
+ char *s = strchr(ops->raw, ','), *target, *comment, prev;
+
+ if (s == NULL)
+ return -1;
+
+ *s = '\0';
+ ops->source.raw = strdup(ops->raw);
+ *s = ',';
+
+ if (ops->source.raw == NULL)
+ return -1;
+
+ target = ++s;
+ comment = strchr(s, arch->objdump.comment_char);
+
+ if (comment != NULL)
+ s = comment - 1;
+ else
+ s = strchr(s, '\0') - 1;
+
+ while (s > target && isspace(s[0]))
+ --s;
+ s++;
+ prev = *s;
+ *s = '\0';
+
+ ops->target.raw = strdup(target);
+ *s = prev;
+
+ if (ops->target.raw == NULL)
+ goto out_free_source;
+
+ if (comment == NULL)
+ return 0;
+
+ comment = skip_spaces(comment);
+ comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
+ comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
+
+ return 0;
+
+out_free_source:
+ zfree(&ops->source.raw);
+ return -1;
+}
+
+static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
+ ops->source.name ?: ops->source.raw,
+ ops->target.name ?: ops->target.raw);
+}
+
+static struct ins_ops mov_ops = {
+ .parse = mov__parse,
+ .scnprintf = mov__scnprintf,
+};
+
+static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
+{
+ char *target, *comment, *s, prev;
+
+ target = s = ops->raw;
+
+ while (s[0] != '\0' && !isspace(s[0]))
+ ++s;
+ prev = *s;
+ *s = '\0';
+
+ ops->target.raw = strdup(target);
+ *s = prev;
+
+ if (ops->target.raw == NULL)
+ return -1;
+
+ comment = strchr(s, arch->objdump.comment_char);
+ if (comment == NULL)
+ return 0;
+
+ comment = skip_spaces(comment);
+ comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
+
+ return 0;
+}
+
+static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
+ struct ins_operands *ops, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
+ ops->target.name ?: ops->target.raw);
+}
+
+static struct ins_ops dec_ops = {
+ .parse = dec__parse,
+ .scnprintf = dec__scnprintf,
+};
+
+static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
+ struct ins_operands *ops __maybe_unused, int max_ins_name)
+{
+ return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
+}
+
+static struct ins_ops nop_ops = {
+ .scnprintf = nop__scnprintf,
+};
+
+static struct ins_ops ret_ops = {
+ .scnprintf = ins__raw_scnprintf,
+};
+
+bool ins__is_ret(const struct ins *ins)
+{
+ return ins->ops == &ret_ops;
+}
+
+bool ins__is_lock(const struct ins *ins)
+{
+ return ins->ops == &lock_ops;
+}
+
+static int ins__key_cmp(const void *name, const void *insp)
+{
+ const struct ins *ins = insp;
+
+ return strcmp(name, ins->name);
+}
+
+static int ins__cmp(const void *a, const void *b)
+{
+ const struct ins *ia = a;
+ const struct ins *ib = b;
+
+ return strcmp(ia->name, ib->name);
+}
+
+static void ins__sort(struct arch *arch)
+{
+ const int nmemb = arch->nr_instructions;
+
+ qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
+}
+
+static struct ins_ops *__ins__find(struct arch *arch, const char *name)
+{
+ struct ins *ins;
+ const int nmemb = arch->nr_instructions;
+
+ if (!arch->sorted_instructions) {
+ ins__sort(arch);
+ arch->sorted_instructions = true;
+ }
+
+ ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
+ return ins ? ins->ops : NULL;
+}
+
+static struct ins_ops *ins__find(struct arch *arch, const char *name)
+{
+ struct ins_ops *ops = __ins__find(arch, name);
+
+ if (!ops && arch->associate_instruction_ops)
+ ops = arch->associate_instruction_ops(arch, name);
+
+ return ops;
+}
+
+static int arch__key_cmp(const void *name, const void *archp)
+{
+ const struct arch *arch = archp;
+
+ return strcmp(name, arch->name);
+}
+
+static int arch__cmp(const void *a, const void *b)
+{
+ const struct arch *aa = a;
+ const struct arch *ab = b;
+
+ return strcmp(aa->name, ab->name);
+}
+
+static void arch__sort(void)
+{
+ const int nmemb = ARRAY_SIZE(architectures);
+
+ qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
+}
+
+static struct arch *arch__find(const char *name)
+{
+ const int nmemb = ARRAY_SIZE(architectures);
+ static bool sorted;
+
+ if (!sorted) {
+ arch__sort();
+ sorted = true;
+ }
+
+ return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
+}
+
+static struct annotated_source *annotated_source__new(void)
+{
+ struct annotated_source *src = zalloc(sizeof(*src));
+
+ if (src != NULL)
+ INIT_LIST_HEAD(&src->source);
+
+ return src;
+}
+
+static __maybe_unused void annotated_source__delete(struct annotated_source *src)
+{
+ if (src == NULL)
+ return;
+ zfree(&src->histograms);
+ zfree(&src->cycles_hist);
+ free(src);
+}
+
+static int annotated_source__alloc_histograms(struct annotated_source *src,
+ size_t size, int nr_hists)
+{
+ size_t sizeof_sym_hist;
+
+ /*
+ * Add buffer of one element for zero length symbol.
+ * When sample is taken from first instruction of
+ * zero length symbol, perf still resolves it and
+ * shows symbol name in perf report and allows to
+ * annotate it.
+ */
+ if (size == 0)
+ size = 1;
+
+ /* Check for overflow when calculating sizeof_sym_hist */
+ if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
+ return -1;
+
+ sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
+
+ /* Check for overflow in zalloc argument */
+ if (sizeof_sym_hist > SIZE_MAX / nr_hists)
+ return -1;
+
+ src->sizeof_sym_hist = sizeof_sym_hist;
+ src->nr_histograms = nr_hists;
+ src->histograms = calloc(nr_hists, sizeof_sym_hist) ;
+ return src->histograms ? 0 : -1;
+}
+
+/* The cycles histogram is lazily allocated. */
+static int symbol__alloc_hist_cycles(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ const size_t size = symbol__size(sym);
+
+ notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
+ if (notes->src->cycles_hist == NULL)
+ return -1;
+ return 0;
+}
+
+void symbol__annotate_zero_histograms(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+
+ pthread_mutex_lock(&notes->lock);
+ if (notes->src != NULL) {
+ memset(notes->src->histograms, 0,
+ notes->src->nr_histograms * notes->src->sizeof_sym_hist);
+ if (notes->src->cycles_hist)
+ memset(notes->src->cycles_hist, 0,
+ symbol__size(sym) * sizeof(struct cyc_hist));
+ }
+ pthread_mutex_unlock(&notes->lock);
+}
+
+static int __symbol__account_cycles(struct cyc_hist *ch,
+ u64 start,
+ unsigned offset, unsigned cycles,
+ unsigned have_start)
+{
+ /*
+ * For now we can only account one basic block per
+ * final jump. But multiple could be overlapping.
+ * Always account the longest one. So when
+ * a shorter one has been already seen throw it away.
+ *
+ * We separately always account the full cycles.
+ */
+ ch[offset].num_aggr++;
+ ch[offset].cycles_aggr += cycles;
+
+ if (cycles > ch[offset].cycles_max)
+ ch[offset].cycles_max = cycles;
+
+ if (ch[offset].cycles_min) {
+ if (cycles && cycles < ch[offset].cycles_min)
+ ch[offset].cycles_min = cycles;
+ } else
+ ch[offset].cycles_min = cycles;
+
+ if (!have_start && ch[offset].have_start)
+ return 0;
+ if (ch[offset].num) {
+ if (have_start && (!ch[offset].have_start ||
+ ch[offset].start > start)) {
+ ch[offset].have_start = 0;
+ ch[offset].cycles = 0;
+ ch[offset].num = 0;
+ if (ch[offset].reset < 0xffff)
+ ch[offset].reset++;
+ } else if (have_start &&
+ ch[offset].start < start)
+ return 0;
+ }
+
+ if (ch[offset].num < NUM_SPARKS)
+ ch[offset].cycles_spark[ch[offset].num] = cycles;
+
+ ch[offset].have_start = have_start;
+ ch[offset].start = start;
+ ch[offset].cycles += cycles;
+ ch[offset].num++;
+ return 0;
+}
+
+static int __symbol__inc_addr_samples(struct map_symbol *ms,
+ struct annotated_source *src, int evidx, u64 addr,
+ struct perf_sample *sample)
+{
+ struct symbol *sym = ms->sym;
+ unsigned offset;
+ struct sym_hist *h;
+
+ pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
+
+ if ((addr < sym->start || addr >= sym->end) &&
+ (addr != sym->end || sym->start != sym->end)) {
+ pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
+ __func__, __LINE__, sym->name, sym->start, addr, sym->end);
+ return -ERANGE;
+ }
+
+ offset = addr - sym->start;
+ h = annotated_source__histogram(src, evidx);
+ if (h == NULL) {
+ pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
+ __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
+ return -ENOMEM;
+ }
+ h->nr_samples++;
+ h->addr[offset].nr_samples++;
+ h->period += sample->period;
+ h->addr[offset].period += sample->period;
+
+ pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
+ ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
+ sym->start, sym->name, addr, addr - sym->start, evidx,
+ h->addr[offset].nr_samples, h->addr[offset].period);
+ return 0;
+}
+
+static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+
+ if (notes->src == NULL) {
+ notes->src = annotated_source__new();
+ if (notes->src == NULL)
+ return NULL;
+ goto alloc_cycles_hist;
+ }
+
+ if (!notes->src->cycles_hist) {
+alloc_cycles_hist:
+ symbol__alloc_hist_cycles(sym);
+ }
+
+ return notes->src->cycles_hist;
+}
+
+struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
+{
+ struct annotation *notes = symbol__annotation(sym);
+
+ if (notes->src == NULL) {
+ notes->src = annotated_source__new();
+ if (notes->src == NULL)
+ return NULL;
+ goto alloc_histograms;
+ }
+
+ if (notes->src->histograms == NULL) {
+alloc_histograms:
+ annotated_source__alloc_histograms(notes->src, symbol__size(sym),
+ nr_hists);
+ }
+
+ return notes->src;
+}
+
+static int symbol__inc_addr_samples(struct map_symbol *ms,
+ struct evsel *evsel, u64 addr,
+ struct perf_sample *sample)
+{
+ struct symbol *sym = ms->sym;
+ struct annotated_source *src;
+
+ if (sym == NULL)
+ return 0;
+ src = symbol__hists(sym, evsel->evlist->core.nr_entries);
+ return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0;
+}
+
+static int symbol__account_cycles(u64 addr, u64 start,
+ struct symbol *sym, unsigned cycles)
+{
+ struct cyc_hist *cycles_hist;
+ unsigned offset;
+
+ if (sym == NULL)
+ return 0;
+ cycles_hist = symbol__cycles_hist(sym);
+ if (cycles_hist == NULL)
+ return -ENOMEM;
+ if (addr < sym->start || addr >= sym->end)
+ return -ERANGE;
+
+ if (start) {
+ if (start < sym->start || start >= sym->end)
+ return -ERANGE;
+ if (start >= addr)
+ start = 0;
+ }
+ offset = addr - sym->start;
+ return __symbol__account_cycles(cycles_hist,
+ start ? start - sym->start : 0,
+ offset, cycles,
+ !!start);
+}
+
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+ struct addr_map_symbol *start,
+ unsigned cycles)
+{
+ u64 saddr = 0;
+ int err;
+
+ if (!cycles)
+ return 0;
+
+ /*
+ * Only set start when IPC can be computed. We can only
+ * compute it when the basic block is completely in a single
+ * function.
+ * Special case the case when the jump is elsewhere, but
+ * it starts on the function start.
+ */
+ if (start &&
+ (start->ms.sym == ams->ms.sym ||
+ (ams->ms.sym &&
+ start->addr == ams->ms.sym->start + ams->ms.map->start)))
+ saddr = start->al_addr;
+ if (saddr == 0)
+ pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
+ ams->addr,
+ start ? start->addr : 0,
+ ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
+ saddr);
+ err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
+ if (err)
+ pr_debug2("account_cycles failed %d\n", err);
+ return err;
+}
+
+static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
+{
+ unsigned n_insn = 0;
+ u64 offset;
+
+ for (offset = start; offset <= end; offset++) {
+ if (notes->offsets[offset])
+ n_insn++;
+ }
+ return n_insn;
+}
+
+static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
+{
+ unsigned n_insn;
+ unsigned int cover_insn = 0;
+ u64 offset;
+
+ n_insn = annotation__count_insn(notes, start, end);
+ if (n_insn && ch->num && ch->cycles) {
+ float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
+
+ /* Hide data when there are too many overlaps. */
+ if (ch->reset >= 0x7fff)
+ return;
+
+ for (offset = start; offset <= end; offset++) {
+ struct annotation_line *al = notes->offsets[offset];
+
+ if (al && al->ipc == 0.0) {
+ al->ipc = ipc;
+ cover_insn++;
+ }
+ }
+
+ if (cover_insn) {
+ notes->hit_cycles += ch->cycles;
+ notes->hit_insn += n_insn * ch->num;
+ notes->cover_insn += cover_insn;
+ }
+ }
+}
+
+void annotation__compute_ipc(struct annotation *notes, size_t size)
+{
+ s64 offset;
+
+ if (!notes->src || !notes->src->cycles_hist)
+ return;
+
+ notes->total_insn = annotation__count_insn(notes, 0, size - 1);
+ notes->hit_cycles = 0;
+ notes->hit_insn = 0;
+ notes->cover_insn = 0;
+
+ pthread_mutex_lock(&notes->lock);
+ for (offset = size - 1; offset >= 0; --offset) {
+ struct cyc_hist *ch;
+
+ ch = &notes->src->cycles_hist[offset];
+ if (ch && ch->cycles) {
+ struct annotation_line *al;
+
+ if (ch->have_start)
+ annotation__count_and_fill(notes, ch->start, offset, ch);
+ al = notes->offsets[offset];
+ if (al && ch->num_aggr) {
+ al->cycles = ch->cycles_aggr / ch->num_aggr;
+ al->cycles_max = ch->cycles_max;
+ al->cycles_min = ch->cycles_min;
+ }
+ notes->have_cycles = true;
+ }
+ }
+ pthread_mutex_unlock(&notes->lock);
+}
+
+int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
+ struct evsel *evsel)
+{
+ return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
+}
+
+int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
+ struct evsel *evsel, u64 ip)
+{
+ return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
+}
+
+static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
+{
+ dl->ins.ops = ins__find(arch, dl->ins.name);
+
+ if (!dl->ins.ops)
+ return;
+
+ if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
+ dl->ins.ops = NULL;
+}
+
+static int disasm_line__parse(char *line, const char **namep, char **rawp)
+{
+ char tmp, *name = skip_spaces(line);
+
+ if (name[0] == '\0')
+ return -1;
+
+ *rawp = name + 1;
+
+ while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
+ ++*rawp;
+
+ tmp = (*rawp)[0];
+ (*rawp)[0] = '\0';
+ *namep = strdup(name);
+
+ if (*namep == NULL)
+ goto out;
+
+ (*rawp)[0] = tmp;
+ *rawp = strim(*rawp);
+
+ return 0;
+
+out:
+ return -1;
+}
+
+struct annotate_args {
+ struct arch *arch;
+ struct map_symbol ms;
+ struct evsel *evsel;
+ struct annotation_options *options;
+ s64 offset;
+ char *line;
+ int line_nr;
+};
+
+static void annotation_line__init(struct annotation_line *al,
+ struct annotate_args *args,
+ int nr)
+{
+ al->offset = args->offset;
+ al->line = strdup(args->line);
+ al->line_nr = args->line_nr;
+ al->data_nr = nr;
+}
+
+static void annotation_line__exit(struct annotation_line *al)
+{
+ free_srcline(al->path);
+ zfree(&al->line);
+}
+
+static size_t disasm_line_size(int nr)
+{
+ struct annotation_line *al;
+
+ return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
+}
+
+/*
+ * Allocating the disasm annotation line data with
+ * following structure:
+ *
+ * -------------------------------------------
+ * struct disasm_line | struct annotation_line
+ * -------------------------------------------
+ *
+ * We have 'struct annotation_line' member as last member
+ * of 'struct disasm_line' to have an easy access.
+ */
+static struct disasm_line *disasm_line__new(struct annotate_args *args)
+{
+ struct disasm_line *dl = NULL;
+ int nr = 1;
+
+ if (evsel__is_group_event(args->evsel))
+ nr = args->evsel->core.nr_members;
+
+ dl = zalloc(disasm_line_size(nr));
+ if (!dl)
+ return NULL;
+
+ annotation_line__init(&dl->al, args, nr);
+ if (dl->al.line == NULL)
+ goto out_delete;
+
+ if (args->offset != -1) {
+ if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
+ goto out_free_line;
+
+ disasm_line__init_ins(dl, args->arch, &args->ms);
+ }
+
+ return dl;
+
+out_free_line:
+ zfree(&dl->al.line);
+out_delete:
+ free(dl);
+ return NULL;
+}
+
+void disasm_line__free(struct disasm_line *dl)
+{
+ if (dl->ins.ops && dl->ins.ops->free)
+ dl->ins.ops->free(&dl->ops);
+ else
+ ins__delete(&dl->ops);
+ zfree(&dl->ins.name);
+ annotation_line__exit(&dl->al);
+ free(dl);
+}
+
+int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
+{
+ if (raw || !dl->ins.ops)
+ return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
+
+ return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
+}
+
+static void annotation_line__add(struct annotation_line *al, struct list_head *head)
+{
+ list_add_tail(&al->node, head);
+}
+
+struct annotation_line *
+annotation_line__next(struct annotation_line *pos, struct list_head *head)
+{
+ list_for_each_entry_continue(pos, head, node)
+ if (pos->offset >= 0)
+ return pos;
+
+ return NULL;
+}
+
+static const char *annotate__address_color(struct block_range *br)
+{
+ double cov = block_range__coverage(br);
+
+ if (cov >= 0) {
+ /* mark red for >75% coverage */
+ if (cov > 0.75)
+ return PERF_COLOR_RED;
+
+ /* mark dull for <1% coverage */
+ if (cov < 0.01)
+ return PERF_COLOR_NORMAL;
+ }
+
+ return PERF_COLOR_MAGENTA;
+}
+
+static const char *annotate__asm_color(struct block_range *br)
+{
+ double cov = block_range__coverage(br);
+
+ if (cov >= 0) {
+ /* mark dull for <1% coverage */
+ if (cov < 0.01)
+ return PERF_COLOR_NORMAL;
+ }
+
+ return PERF_COLOR_BLUE;
+}
+
+static void annotate__branch_printf(struct block_range *br, u64 addr)
+{
+ bool emit_comment = true;
+
+ if (!br)
+ return;
+
+#if 1
+ if (br->is_target && br->start == addr) {
+ struct block_range *branch = br;
+ double p;
+
+ /*
+ * Find matching branch to our target.
+ */
+ while (!branch->is_branch)
+ branch = block_range__next(branch);
+
+ p = 100 *(double)br->entry / branch->coverage;
+
+ if (p > 0.1) {
+ if (emit_comment) {
+ emit_comment = false;
+ printf("\t#");
+ }
+
+ /*
+ * The percentage of coverage joined at this target in relation
+ * to the next branch.
+ */
+ printf(" +%.2f%%", p);
+ }
+ }
+#endif
+ if (br->is_branch && br->end == addr) {
+ double p = 100*(double)br->taken / br->coverage;
+
+ if (p > 0.1) {
+ if (emit_comment) {
+ emit_comment = false;
+ printf("\t#");
+ }
+
+ /*
+ * The percentage of coverage leaving at this branch, and
+ * its prediction ratio.
+ */
+ printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken);
+ }
+ }
+}
+
+static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
+{
+ s64 offset = dl->al.offset;
+ const u64 addr = start + offset;
+ struct block_range *br;
+
+ br = block_range__find(addr);
+ color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr);
+ color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
+ annotate__branch_printf(br, addr);
+ return 0;
+}
+
+static int
+annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
+ struct evsel *evsel, u64 len, int min_pcnt, int printed,
+ int max_lines, struct annotation_line *queue, int addr_fmt_width,
+ int percent_type)
+{
+ struct disasm_line *dl = container_of(al, struct disasm_line, al);
+ static const char *prev_line;
+ static const char *prev_color;
+
+ if (al->offset != -1) {
+ double max_percent = 0.0;
+ int i, nr_percent = 1;
+ const char *color;
+ struct annotation *notes = symbol__annotation(sym);
+
+ for (i = 0; i < al->data_nr; i++) {
+ double percent;
+
+ percent = annotation_data__percent(&al->data[i],
+ percent_type);
+
+ if (percent > max_percent)
+ max_percent = percent;
+ }
+
+ if (al->data_nr > nr_percent)
+ nr_percent = al->data_nr;
+
+ if (max_percent < min_pcnt)
+ return -1;
+
+ if (max_lines && printed >= max_lines)
+ return 1;
+
+ if (queue != NULL) {
+ list_for_each_entry_from(queue, &notes->src->source, node) {
+ if (queue == al)
+ break;
+ annotation_line__print(queue, sym, start, evsel, len,
+ 0, 0, 1, NULL, addr_fmt_width,
+ percent_type);
+ }
+ }
+
+ color = get_percent_color(max_percent);
+
+ /*
+ * Also color the filename and line if needed, with
+ * the same color than the percentage. Don't print it
+ * twice for close colored addr with the same filename:line
+ */
+ if (al->path) {
+ if (!prev_line || strcmp(prev_line, al->path)
+ || color != prev_color) {
+ color_fprintf(stdout, color, " %s", al->path);
+ prev_line = al->path;
+ prev_color = color;
+ }
+ }
+
+ for (i = 0; i < nr_percent; i++) {
+ struct annotation_data *data = &al->data[i];
+ double percent;
+
+ percent = annotation_data__percent(data, percent_type);
+ color = get_percent_color(percent);
+
+ if (symbol_conf.show_total_period)
+ color_fprintf(stdout, color, " %11" PRIu64,
+ data->he.period);
+ else if (symbol_conf.show_nr_samples)
+ color_fprintf(stdout, color, " %7" PRIu64,
+ data->he.nr_samples);
+ else
+ color_fprintf(stdout, color, " %7.2f", percent);
+ }
+
+ printf(" : ");
+
+ disasm_line__print(dl, start, addr_fmt_width);
+ printf("\n");
+ } else if (max_lines && printed >= max_lines)
+ return 1;
+ else {
+ int width = symbol_conf.show_total_period ? 12 : 8;
+
+ if (queue)
+ return -1;
+
+ if (evsel__is_group_event(evsel))
+ width *= evsel->core.nr_members;
+
+ if (!*al->line)
+ printf(" %*s:\n", width, " ");
+ else
+ printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line);
+ }
+
+ return 0;
+}
+
+/*
+ * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
+ * which looks like following
+ *
+ * 0000000000415500 <_init>:
+ * 415500: sub $0x8,%rsp
+ * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
+ * 41550b: test %rax,%rax
+ * 41550e: je 415515 <_init+0x15>
+ * 415510: callq 416e70 <__gmon_start__@plt>
+ * 415515: add $0x8,%rsp
+ * 415519: retq
+ *
+ * it will be parsed and saved into struct disasm_line as
+ * <offset> <name> <ops.raw>
+ *
+ * The offset will be a relative offset from the start of the symbol and -1
+ * means that it's not a disassembly line so should be treated differently.
+ * The ops.raw part will be parsed further according to type of the instruction.
+ */
+static int symbol__parse_objdump_line(struct symbol *sym,
+ struct annotate_args *args,
+ char *parsed_line, int *line_nr)
+{
+ struct map *map = args->ms.map;
+ struct annotation *notes = symbol__annotation(sym);
+ struct disasm_line *dl;
+ char *tmp;
+ s64 line_ip, offset = -1;
+ regmatch_t match[2];
+
+ /* /filename:linenr ? Save line number and ignore. */
+ if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
+ *line_nr = atoi(parsed_line + match[1].rm_so);
+ return 0;
+ }
+
+ /* Process hex address followed by ':'. */
+ line_ip = strtoull(parsed_line, &tmp, 16);
+ if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
+ u64 start = map__rip_2objdump(map, sym->start),
+ end = map__rip_2objdump(map, sym->end);
+
+ offset = line_ip - start;
+ if ((u64)line_ip < start || (u64)line_ip >= end)
+ offset = -1;
+ else
+ parsed_line = tmp + 1;
+ }
+
+ args->offset = offset;
+ args->line = parsed_line;
+ args->line_nr = *line_nr;
+ args->ms.sym = sym;
+
+ dl = disasm_line__new(args);
+ (*line_nr)++;
+
+ if (dl == NULL)
+ return -1;
+
+ if (!disasm_line__has_local_offset(dl)) {
+ dl->ops.target.offset = dl->ops.target.addr -
+ map__rip_2objdump(map, sym->start);
+ dl->ops.target.offset_avail = true;
+ }
+
+ /* kcore has no symbols, so add the call target symbol */
+ if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
+ struct addr_map_symbol target = {
+ .addr = dl->ops.target.addr,
+ .ms = { .map = map, },
+ };
+
+ if (!maps__find_ams(args->ms.maps, &target) &&
+ target.ms.sym->start == target.al_addr)
+ dl->ops.target.sym = target.ms.sym;
+ }
+
+ annotation_line__add(&dl->al, &notes->src->source);
+
+ return 0;
+}
+
+static __attribute__((constructor)) void symbol__init_regexpr(void)
+{
+ regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
+}
+
+static void delete_last_nop(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct list_head *list = &notes->src->source;
+ struct disasm_line *dl;
+
+ while (!list_empty(list)) {
+ dl = list_entry(list->prev, struct disasm_line, al.node);
+
+ if (dl->ins.ops) {
+ if (dl->ins.ops != &nop_ops)
+ return;
+ } else {
+ if (!strstr(dl->al.line, " nop ") &&
+ !strstr(dl->al.line, " nopl ") &&
+ !strstr(dl->al.line, " nopw "))
+ return;
+ }
+
+ list_del_init(&dl->al.node);
+ disasm_line__free(dl);
+ }
+}
+
+int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
+{
+ struct dso *dso = ms->map->dso;
+
+ BUG_ON(buflen == 0);
+
+ if (errnum >= 0) {
+ str_error_r(errnum, buf, buflen);
+ return 0;
+ }
+
+ switch (errnum) {
+ case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
+ char bf[SBUILD_ID_SIZE + 15] = " with build id ";
+ char *build_id_msg = NULL;
+
+ if (dso->has_build_id) {
+ build_id__sprintf(&dso->bid, bf + 15);
+ build_id_msg = bf;
+ }
+ scnprintf(buf, buflen,
+ "No vmlinux file%s\nwas found in the path.\n\n"
+ "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
+ "Please use:\n\n"
+ " perf buildid-cache -vu vmlinux\n\n"
+ "or:\n\n"
+ " --vmlinux vmlinux\n", build_id_msg ?: "");
+ }
+ break;
+ case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
+ scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
+ break;
+ case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
+ scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
+ break;
+ case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
+ scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
+ break;
+ case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
+ scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
+ break;
+ case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
+ scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
+ dso->long_name);
+ break;
+ default:
+ scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
+ break;
+ }
+
+ return 0;
+}
+
+static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
+{
+ char linkname[PATH_MAX];
+ char *build_id_filename;
+ char *build_id_path = NULL;
+ char *pos;
+ int len;
+
+ if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
+ !dso__is_kcore(dso))
+ return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
+
+ build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
+ if (build_id_filename) {
+ __symbol__join_symfs(filename, filename_size, build_id_filename);
+ free(build_id_filename);
+ } else {
+ if (dso->has_build_id)
+ return ENOMEM;
+ goto fallback;
+ }
+
+ build_id_path = strdup(filename);
+ if (!build_id_path)
+ return ENOMEM;
+
+ /*
+ * old style build-id cache has name of XX/XXXXXXX.. while
+ * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
+ * extract the build-id part of dirname in the new style only.
+ */
+ pos = strrchr(build_id_path, '/');
+ if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
+ dirname(build_id_path);
+
+ if (dso__is_kcore(dso))
+ goto fallback;
+
+ len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
+ if (len < 0)
+ goto fallback;
+
+ linkname[len] = '\0';
+ if (strstr(linkname, DSO__NAME_KALLSYMS) ||
+ access(filename, R_OK)) {
+fallback:
+ /*
+ * If we don't have build-ids or the build-id file isn't in the
+ * cache, or is just a kallsyms file, well, lets hope that this
+ * DSO is the same as when 'perf record' ran.
+ */
+ __symbol__join_symfs(filename, filename_size, dso->long_name);
+ }
+
+ free(build_id_path);
+ return 0;
+}
+
+#if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
+#define PACKAGE "perf"
+#include <bfd.h>
+#include <dis-asm.h>
+
+static int symbol__disassemble_bpf(struct symbol *sym,
+ struct annotate_args *args)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct annotation_options *opts = args->options;
+ struct bpf_prog_info_linear *info_linear;
+ struct bpf_prog_linfo *prog_linfo = NULL;
+ struct bpf_prog_info_node *info_node;
+ int len = sym->end - sym->start;
+ disassembler_ftype disassemble;
+ struct map *map = args->ms.map;
+ struct disassemble_info info;
+ struct dso *dso = map->dso;
+ int pc = 0, count, sub_id;
+ struct btf *btf = NULL;
+ char tpath[PATH_MAX];
+ size_t buf_size;
+ int nr_skip = 0;
+ char *buf;
+ bfd *bfdf;
+ int ret;
+ FILE *s;
+
+ if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
+ return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
+
+ pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
+ sym->name, sym->start, sym->end - sym->start);
+
+ memset(tpath, 0, sizeof(tpath));
+ perf_exe(tpath, sizeof(tpath));
+
+ bfdf = bfd_openr(tpath, NULL);
+ if (bfdf == NULL)
+ abort();
+
+ if (!bfd_check_format(bfdf, bfd_object))
+ abort();
+
+ s = open_memstream(&buf, &buf_size);
+ if (!s) {
+ ret = errno;
+ goto out;
+ }
+ init_disassemble_info(&info, s,
+ (fprintf_ftype) fprintf);
+
+ info.arch = bfd_get_arch(bfdf);
+ info.mach = bfd_get_mach(bfdf);
+
+ info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
+ dso->bpf_prog.id);
+ if (!info_node) {
+ ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
+ goto out;
+ }
+ info_linear = info_node->info_linear;
+ sub_id = dso->bpf_prog.sub_id;
+
+ info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
+ info.buffer_length = info_linear->info.jited_prog_len;
+
+ if (info_linear->info.nr_line_info)
+ prog_linfo = bpf_prog_linfo__new(&info_linear->info);
+
+ if (info_linear->info.btf_id) {
+ struct btf_node *node;
+
+ node = perf_env__find_btf(dso->bpf_prog.env,
+ info_linear->info.btf_id);
+ if (node)
+ btf = btf__new((__u8 *)(node->data),
+ node->data_size);
+ }
+
+ disassemble_init_for_target(&info);
+
+#ifdef DISASM_FOUR_ARGS_SIGNATURE
+ disassemble = disassembler(info.arch,
+ bfd_big_endian(bfdf),
+ info.mach,
+ bfdf);
+#else
+ disassemble = disassembler(bfdf);
+#endif
+ if (disassemble == NULL)
+ abort();
+
+ fflush(s);
+ do {
+ const struct bpf_line_info *linfo = NULL;
+ struct disasm_line *dl;
+ size_t prev_buf_size;
+ const char *srcline;
+ u64 addr;
+
+ addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
+ count = disassemble(pc, &info);
+
+ if (prog_linfo)
+ linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
+ addr, sub_id,
+ nr_skip);
+
+ if (linfo && btf) {
+ srcline = btf__name_by_offset(btf, linfo->line_off);
+ nr_skip++;
+ } else
+ srcline = NULL;
+
+ fprintf(s, "\n");
+ prev_buf_size = buf_size;
+ fflush(s);
+
+ if (!opts->hide_src_code && srcline) {
+ args->offset = -1;
+ args->line = strdup(srcline);
+ args->line_nr = 0;
+ args->ms.sym = sym;
+ dl = disasm_line__new(args);
+ if (dl) {
+ annotation_line__add(&dl->al,
+ &notes->src->source);
+ }
+ }
+
+ args->offset = pc;
+ args->line = buf + prev_buf_size;
+ args->line_nr = 0;
+ args->ms.sym = sym;
+ dl = disasm_line__new(args);
+ if (dl)
+ annotation_line__add(&dl->al, &notes->src->source);
+
+ pc += count;
+ } while (count > 0 && pc < len);
+
+ ret = 0;
+out:
+ free(prog_linfo);
+ free(btf);
+ fclose(s);
+ bfd_close(bfdf);
+ return ret;
+}
+#else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
+static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
+ struct annotate_args *args __maybe_unused)
+{
+ return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
+}
+#endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
+
+static int
+symbol__disassemble_bpf_image(struct symbol *sym,
+ struct annotate_args *args)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct disasm_line *dl;
+
+ args->offset = -1;
+ args->line = strdup("to be implemented");
+ args->line_nr = 0;
+ dl = disasm_line__new(args);
+ if (dl)
+ annotation_line__add(&dl->al, &notes->src->source);
+
+ free(args->line);
+ return 0;
+}
+
+/*
+ * Possibly create a new version of line with tabs expanded. Returns the
+ * existing or new line, storage is updated if a new line is allocated. If
+ * allocation fails then NULL is returned.
+ */
+static char *expand_tabs(char *line, char **storage, size_t *storage_len)
+{
+ size_t i, src, dst, len, new_storage_len, num_tabs;
+ char *new_line;
+ size_t line_len = strlen(line);
+
+ for (num_tabs = 0, i = 0; i < line_len; i++)
+ if (line[i] == '\t')
+ num_tabs++;
+
+ if (num_tabs == 0)
+ return line;
+
+ /*
+ * Space for the line and '\0', less the leading and trailing
+ * spaces. Each tab may introduce 7 additional spaces.
+ */
+ new_storage_len = line_len + 1 + (num_tabs * 7);
+
+ new_line = malloc(new_storage_len);
+ if (new_line == NULL) {
+ pr_err("Failure allocating memory for tab expansion\n");
+ return NULL;
+ }
+
+ /*
+ * Copy regions starting at src and expand tabs. If there are two
+ * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
+ * are inserted.
+ */
+ for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
+ if (line[i] == '\t') {
+ len = i - src;
+ memcpy(&new_line[dst], &line[src], len);
+ dst += len;
+ new_line[dst++] = ' ';
+ while (dst % 8 != 0)
+ new_line[dst++] = ' ';
+ src = i + 1;
+ num_tabs--;
+ }
+ }
+
+ /* Expand the last region. */
+ len = line_len - src;
+ memcpy(&new_line[dst], &line[src], len);
+ dst += len;
+ new_line[dst] = '\0';
+
+ free(*storage);
+ *storage = new_line;
+ *storage_len = new_storage_len;
+ return new_line;
+
+}
+
+static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
+{
+ struct annotation_options *opts = args->options;
+ struct map *map = args->ms.map;
+ struct dso *dso = map->dso;
+ char *command;
+ FILE *file;
+ char symfs_filename[PATH_MAX];
+ struct kcore_extract kce;
+ bool delete_extract = false;
+ bool decomp = false;
+ int lineno = 0;
+ int nline;
+ char *line;
+ size_t line_len;
+ const char *objdump_argv[] = {
+ "/bin/sh",
+ "-c",
+ NULL, /* Will be the objdump command to run. */
+ "--",
+ NULL, /* Will be the symfs path. */
+ NULL,
+ };
+ struct child_process objdump_process;
+ int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
+
+ if (err)
+ return err;
+
+ pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
+ symfs_filename, sym->name, map->unmap_ip(map, sym->start),
+ map->unmap_ip(map, sym->end));
+
+ pr_debug("annotating [%p] %30s : [%p] %30s\n",
+ dso, dso->long_name, sym, sym->name);
+
+ if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
+ return symbol__disassemble_bpf(sym, args);
+ } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
+ return symbol__disassemble_bpf_image(sym, args);
+ } else if (dso__is_kcore(dso)) {
+ kce.kcore_filename = symfs_filename;
+ kce.addr = map__rip_2objdump(map, sym->start);
+ kce.offs = sym->start;
+ kce.len = sym->end - sym->start;
+ if (!kcore_extract__create(&kce)) {
+ delete_extract = true;
+ strlcpy(symfs_filename, kce.extract_filename,
+ sizeof(symfs_filename));
+ }
+ } else if (dso__needs_decompress(dso)) {
+ char tmp[KMOD_DECOMP_LEN];
+
+ if (dso__decompress_kmodule_path(dso, symfs_filename,
+ tmp, sizeof(tmp)) < 0)
+ return -1;
+
+ decomp = true;
+ strcpy(symfs_filename, tmp);
+ }
+
+ err = asprintf(&command,
+ "%s %s%s --start-address=0x%016" PRIx64
+ " --stop-address=0x%016" PRIx64
+ " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
+ opts->objdump_path ?: "objdump",
+ opts->disassembler_style ? "-M " : "",
+ opts->disassembler_style ?: "",
+ map__rip_2objdump(map, sym->start),
+ map__rip_2objdump(map, sym->end),
+ opts->show_asm_raw ? "" : "--no-show-raw-insn",
+ opts->annotate_src ? "-S" : "",
+ opts->prefix ? "--prefix " : "",
+ opts->prefix ? '"' : ' ',
+ opts->prefix ?: "",
+ opts->prefix ? '"' : ' ',
+ opts->prefix_strip ? "--prefix-strip=" : "",
+ opts->prefix_strip ?: "");
+
+ if (err < 0) {
+ pr_err("Failure allocating memory for the command to run\n");
+ goto out_remove_tmp;
+ }
+
+ pr_debug("Executing: %s\n", command);
+
+ objdump_argv[2] = command;
+ objdump_argv[4] = symfs_filename;
+
+ /* Create a pipe to read from for stdout */
+ memset(&objdump_process, 0, sizeof(objdump_process));
+ objdump_process.argv = objdump_argv;
+ objdump_process.out = -1;
+ if (start_command(&objdump_process)) {
+ pr_err("Failure starting to run %s\n", command);
+ err = -1;
+ goto out_free_command;
+ }
+
+ file = fdopen(objdump_process.out, "r");
+ if (!file) {
+ pr_err("Failure creating FILE stream for %s\n", command);
+ /*
+ * If we were using debug info should retry with
+ * original binary.
+ */
+ err = -1;
+ goto out_close_stdout;
+ }
+
+ /* Storage for getline. */
+ line = NULL;
+ line_len = 0;
+
+ nline = 0;
+ while (!feof(file)) {
+ const char *match;
+ char *expanded_line;
+
+ if (getline(&line, &line_len, file) < 0 || !line)
+ break;
+
+ /* Skip lines containing "filename:" */
+ match = strstr(line, symfs_filename);
+ if (match && match[strlen(symfs_filename)] == ':')
+ continue;
+
+ expanded_line = strim(line);
+ expanded_line = expand_tabs(expanded_line, &line, &line_len);
+ if (!expanded_line)
+ break;
+
+ /*
+ * The source code line number (lineno) needs to be kept in
+ * across calls to symbol__parse_objdump_line(), so that it
+ * can associate it with the instructions till the next one.
+ * See disasm_line__new() and struct disasm_line::line_nr.
+ */
+ if (symbol__parse_objdump_line(sym, args, expanded_line,
+ &lineno) < 0)
+ break;
+ nline++;
+ }
+ free(line);
+
+ err = finish_command(&objdump_process);
+ if (err)
+ pr_err("Error running %s\n", command);
+
+ if (nline == 0) {
+ err = -1;
+ pr_err("No output from %s\n", command);
+ }
+
+ /*
+ * kallsyms does not have symbol sizes so there may a nop at the end.
+ * Remove it.
+ */
+ if (dso__is_kcore(dso))
+ delete_last_nop(sym);
+
+ fclose(file);
+
+out_close_stdout:
+ close(objdump_process.out);
+
+out_free_command:
+ free(command);
+
+out_remove_tmp:
+ if (decomp)
+ unlink(symfs_filename);
+
+ if (delete_extract)
+ kcore_extract__delete(&kce);
+
+ return err;
+}
+
+static void calc_percent(struct sym_hist *sym_hist,
+ struct hists *hists,
+ struct annotation_data *data,
+ s64 offset, s64 end)
+{
+ unsigned int hits = 0;
+ u64 period = 0;
+
+ while (offset < end) {
+ hits += sym_hist->addr[offset].nr_samples;
+ period += sym_hist->addr[offset].period;
+ ++offset;
+ }
+
+ if (sym_hist->nr_samples) {
+ data->he.period = period;
+ data->he.nr_samples = hits;
+ data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
+ }
+
+ if (hists->stats.nr_non_filtered_samples)
+ data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
+
+ if (sym_hist->period)
+ data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
+
+ if (hists->stats.total_period)
+ data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
+}
+
+static void annotation__calc_percent(struct annotation *notes,
+ struct evsel *leader, s64 len)
+{
+ struct annotation_line *al, *next;
+ struct evsel *evsel;
+
+ list_for_each_entry(al, &notes->src->source, node) {
+ s64 end;
+ int i = 0;
+
+ if (al->offset == -1)
+ continue;
+
+ next = annotation_line__next(al, &notes->src->source);
+ end = next ? next->offset : len;
+
+ for_each_group_evsel(evsel, leader) {
+ struct hists *hists = evsel__hists(evsel);
+ struct annotation_data *data;
+ struct sym_hist *sym_hist;
+
+ BUG_ON(i >= al->data_nr);
+
+ sym_hist = annotation__histogram(notes, evsel->idx);
+ data = &al->data[i++];
+
+ calc_percent(sym_hist, hists, data, al->offset, end);
+ }
+ }
+}
+
+void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
+{
+ struct annotation *notes = symbol__annotation(sym);
+
+ annotation__calc_percent(notes, evsel, symbol__size(sym));
+}
+
+int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *options, struct arch **parch)
+{
+ struct symbol *sym = ms->sym;
+ struct annotation *notes = symbol__annotation(sym);
+ struct annotate_args args = {
+ .evsel = evsel,
+ .options = options,
+ };
+ struct perf_env *env = evsel__env(evsel);
+ const char *arch_name = perf_env__arch(env);
+ struct arch *arch;
+ int err;
+
+ if (!arch_name)
+ return errno;
+
+ args.arch = arch = arch__find(arch_name);
+ if (arch == NULL)
+ return ENOTSUP;
+
+ if (parch)
+ *parch = arch;
+
+ if (arch->init) {
+ err = arch->init(arch, env ? env->cpuid : NULL);
+ if (err) {
+ pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
+ return err;
+ }
+ }
+
+ args.ms = *ms;
+ notes->start = map__rip_2objdump(ms->map, sym->start);
+
+ return symbol__disassemble(sym, &args);
+}
+
+static void insert_source_line(struct rb_root *root, struct annotation_line *al,
+ struct annotation_options *opts)
+{
+ struct annotation_line *iter;
+ struct rb_node **p = &root->rb_node;
+ struct rb_node *parent = NULL;
+ int i, ret;
+
+ while (*p != NULL) {
+ parent = *p;
+ iter = rb_entry(parent, struct annotation_line, rb_node);
+
+ ret = strcmp(iter->path, al->path);
+ if (ret == 0) {
+ for (i = 0; i < al->data_nr; i++) {
+ iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
+ opts->percent_type);
+ }
+ return;
+ }
+
+ if (ret < 0)
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
+
+ for (i = 0; i < al->data_nr; i++) {
+ al->data[i].percent_sum = annotation_data__percent(&al->data[i],
+ opts->percent_type);
+ }
+
+ rb_link_node(&al->rb_node, parent, p);
+ rb_insert_color(&al->rb_node, root);
+}
+
+static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
+{
+ int i;
+
+ for (i = 0; i < a->data_nr; i++) {
+ if (a->data[i].percent_sum == b->data[i].percent_sum)
+ continue;
+ return a->data[i].percent_sum > b->data[i].percent_sum;
+ }
+
+ return 0;
+}
+
+static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
+{
+ struct annotation_line *iter;
+ struct rb_node **p = &root->rb_node;
+ struct rb_node *parent = NULL;
+
+ while (*p != NULL) {
+ parent = *p;
+ iter = rb_entry(parent, struct annotation_line, rb_node);
+
+ if (cmp_source_line(al, iter))
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
+
+ rb_link_node(&al->rb_node, parent, p);
+ rb_insert_color(&al->rb_node, root);
+}
+
+static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
+{
+ struct annotation_line *al;
+ struct rb_node *node;
+
+ node = rb_first(src_root);
+ while (node) {
+ struct rb_node *next;
+
+ al = rb_entry(node, struct annotation_line, rb_node);
+ next = rb_next(node);
+ rb_erase(node, src_root);
+
+ __resort_source_line(dest_root, al);
+ node = next;
+ }
+}
+
+static void print_summary(struct rb_root *root, const char *filename)
+{
+ struct annotation_line *al;
+ struct rb_node *node;
+
+ printf("\nSorted summary for file %s\n", filename);
+ printf("----------------------------------------------\n\n");
+
+ if (RB_EMPTY_ROOT(root)) {
+ printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
+ return;
+ }
+
+ node = rb_first(root);
+ while (node) {
+ double percent, percent_max = 0.0;
+ const char *color;
+ char *path;
+ int i;
+
+ al = rb_entry(node, struct annotation_line, rb_node);
+ for (i = 0; i < al->data_nr; i++) {
+ percent = al->data[i].percent_sum;
+ color = get_percent_color(percent);
+ color_fprintf(stdout, color, " %7.2f", percent);
+
+ if (percent > percent_max)
+ percent_max = percent;
+ }
+
+ path = al->path;
+ color = get_percent_color(percent_max);
+ color_fprintf(stdout, color, " %s\n", path);
+
+ node = rb_next(node);
+ }
+}
+
+static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct sym_hist *h = annotation__histogram(notes, evsel->idx);
+ u64 len = symbol__size(sym), offset;
+
+ for (offset = 0; offset < len; ++offset)
+ if (h->addr[offset].nr_samples != 0)
+ printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
+ sym->start + offset, h->addr[offset].nr_samples);
+ printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
+}
+
+static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
+{
+ char bf[32];
+ struct annotation_line *line;
+
+ list_for_each_entry_reverse(line, lines, node) {
+ if (line->offset != -1)
+ return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
+ }
+
+ return 0;
+}
+
+int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *opts)
+{
+ struct map *map = ms->map;
+ struct symbol *sym = ms->sym;
+ struct dso *dso = map->dso;
+ char *filename;
+ const char *d_filename;
+ const char *evsel_name = evsel__name(evsel);
+ struct annotation *notes = symbol__annotation(sym);
+ struct sym_hist *h = annotation__histogram(notes, evsel->idx);
+ struct annotation_line *pos, *queue = NULL;
+ u64 start = map__rip_2objdump(map, sym->start);
+ int printed = 2, queue_len = 0, addr_fmt_width;
+ int more = 0;
+ bool context = opts->context;
+ u64 len;
+ int width = symbol_conf.show_total_period ? 12 : 8;
+ int graph_dotted_len;
+ char buf[512];
+
+ filename = strdup(dso->long_name);
+ if (!filename)
+ return -ENOMEM;
+
+ if (opts->full_path)
+ d_filename = filename;
+ else
+ d_filename = basename(filename);
+
+ len = symbol__size(sym);
+
+ if (evsel__is_group_event(evsel)) {
+ width *= evsel->core.nr_members;
+ evsel__group_desc(evsel, buf, sizeof(buf));
+ evsel_name = buf;
+ }
+
+ graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
+ "percent: %s)\n",
+ width, width, symbol_conf.show_total_period ? "Period" :
+ symbol_conf.show_nr_samples ? "Samples" : "Percent",
+ d_filename, evsel_name, h->nr_samples,
+ percent_type_str(opts->percent_type));
+
+ printf("%-*.*s----\n",
+ graph_dotted_len, graph_dotted_len, graph_dotted_line);
+
+ if (verbose > 0)
+ symbol__annotate_hits(sym, evsel);
+
+ addr_fmt_width = annotated_source__addr_fmt_width(&notes->src->source, start);
+
+ list_for_each_entry(pos, &notes->src->source, node) {
+ int err;
+
+ if (context && queue == NULL) {
+ queue = pos;
+ queue_len = 0;
+ }
+
+ err = annotation_line__print(pos, sym, start, evsel, len,
+ opts->min_pcnt, printed, opts->max_lines,
+ queue, addr_fmt_width, opts->percent_type);
+
+ switch (err) {
+ case 0:
+ ++printed;
+ if (context) {
+ printed += queue_len;
+ queue = NULL;
+ queue_len = 0;
+ }
+ break;
+ case 1:
+ /* filtered by max_lines */
+ ++more;
+ break;
+ case -1:
+ default:
+ /*
+ * Filtered by min_pcnt or non IP lines when
+ * context != 0
+ */
+ if (!context)
+ break;
+ if (queue_len == context)
+ queue = list_entry(queue->node.next, typeof(*queue), node);
+ else
+ ++queue_len;
+ break;
+ }
+ }
+
+ free(filename);
+
+ return more;
+}
+
+static void FILE__set_percent_color(void *fp __maybe_unused,
+ double percent __maybe_unused,
+ bool current __maybe_unused)
+{
+}
+
+static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
+ int nr __maybe_unused, bool current __maybe_unused)
+{
+ return 0;
+}
+
+static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
+{
+ return 0;
+}
+
+static void FILE__printf(void *fp, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ vfprintf(fp, fmt, args);
+ va_end(args);
+}
+
+static void FILE__write_graph(void *fp, int graph)
+{
+ const char *s;
+ switch (graph) {
+
+ case DARROW_CHAR: s = "↓"; break;
+ case UARROW_CHAR: s = "↑"; break;
+ case LARROW_CHAR: s = "←"; break;
+ case RARROW_CHAR: s = "→"; break;
+ default: s = "?"; break;
+ }
+
+ fputs(s, fp);
+}
+
+static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
+ struct annotation_options *opts)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct annotation_write_ops wops = {
+ .first_line = true,
+ .obj = fp,
+ .set_color = FILE__set_color,
+ .set_percent_color = FILE__set_percent_color,
+ .set_jumps_percent_color = FILE__set_jumps_percent_color,
+ .printf = FILE__printf,
+ .write_graph = FILE__write_graph,
+ };
+ struct annotation_line *al;
+
+ list_for_each_entry(al, &notes->src->source, node) {
+ if (annotation_line__filter(al, notes))
+ continue;
+ annotation_line__write(al, notes, &wops, opts);
+ fputc('\n', fp);
+ wops.first_line = false;
+ }
+
+ return 0;
+}
+
+int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *opts)
+{
+ const char *ev_name = evsel__name(evsel);
+ char buf[1024];
+ char *filename;
+ int err = -1;
+ FILE *fp;
+
+ if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
+ return -1;
+
+ fp = fopen(filename, "w");
+ if (fp == NULL)
+ goto out_free_filename;
+
+ if (evsel__is_group_event(evsel)) {
+ evsel__group_desc(evsel, buf, sizeof(buf));
+ ev_name = buf;
+ }
+
+ fprintf(fp, "%s() %s\nEvent: %s\n\n",
+ ms->sym->name, ms->map->dso->long_name, ev_name);
+ symbol__annotate_fprintf2(ms->sym, fp, opts);
+
+ fclose(fp);
+ err = 0;
+out_free_filename:
+ free(filename);
+ return err;
+}
+
+void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct sym_hist *h = annotation__histogram(notes, evidx);
+
+ memset(h, 0, notes->src->sizeof_sym_hist);
+}
+
+void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ struct sym_hist *h = annotation__histogram(notes, evidx);
+ int len = symbol__size(sym), offset;
+
+ h->nr_samples = 0;
+ for (offset = 0; offset < len; ++offset) {
+ h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
+ h->nr_samples += h->addr[offset].nr_samples;
+ }
+}
+
+void annotated_source__purge(struct annotated_source *as)
+{
+ struct annotation_line *al, *n;
+
+ list_for_each_entry_safe(al, n, &as->source, node) {
+ list_del_init(&al->node);
+ disasm_line__free(disasm_line(al));
+ }
+}
+
+static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
+{
+ size_t printed;
+
+ if (dl->al.offset == -1)
+ return fprintf(fp, "%s\n", dl->al.line);
+
+ printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
+
+ if (dl->ops.raw[0] != '\0') {
+ printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
+ dl->ops.raw);
+ }
+
+ return printed + fprintf(fp, "\n");
+}
+
+size_t disasm__fprintf(struct list_head *head, FILE *fp)
+{
+ struct disasm_line *pos;
+ size_t printed = 0;
+
+ list_for_each_entry(pos, head, al.node)
+ printed += disasm_line__fprintf(pos, fp);
+
+ return printed;
+}
+
+bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
+{
+ if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
+ !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
+ dl->ops.target.offset >= (s64)symbol__size(sym))
+ return false;
+
+ return true;
+}
+
+void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
+{
+ u64 offset, size = symbol__size(sym);
+
+ /* PLT symbols contain external offsets */
+ if (strstr(sym->name, "@plt"))
+ return;
+
+ for (offset = 0; offset < size; ++offset) {
+ struct annotation_line *al = notes->offsets[offset];
+ struct disasm_line *dl;
+
+ dl = disasm_line(al);
+
+ if (!disasm_line__is_valid_local_jump(dl, sym))
+ continue;
+
+ al = notes->offsets[dl->ops.target.offset];
+
+ /*
+ * FIXME: Oops, no jump target? Buggy disassembler? Or do we
+ * have to adjust to the previous offset?
+ */
+ if (al == NULL)
+ continue;
+
+ if (++al->jump_sources > notes->max_jump_sources)
+ notes->max_jump_sources = al->jump_sources;
+ }
+}
+
+void annotation__set_offsets(struct annotation *notes, s64 size)
+{
+ struct annotation_line *al;
+
+ notes->max_line_len = 0;
+ notes->nr_entries = 0;
+ notes->nr_asm_entries = 0;
+
+ list_for_each_entry(al, &notes->src->source, node) {
+ size_t line_len = strlen(al->line);
+
+ if (notes->max_line_len < line_len)
+ notes->max_line_len = line_len;
+ al->idx = notes->nr_entries++;
+ if (al->offset != -1) {
+ al->idx_asm = notes->nr_asm_entries++;
+ /*
+ * FIXME: short term bandaid to cope with assembly
+ * routines that comes with labels in the same column
+ * as the address in objdump, sigh.
+ *
+ * E.g. copy_user_generic_unrolled
+ */
+ if (al->offset < size)
+ notes->offsets[al->offset] = al;
+ } else
+ al->idx_asm = -1;
+ }
+}
+
+static inline int width_jumps(int n)
+{
+ if (n >= 100)
+ return 5;
+ if (n / 10)
+ return 2;
+ return 1;
+}
+
+static int annotation__max_ins_name(struct annotation *notes)
+{
+ int max_name = 0, len;
+ struct annotation_line *al;
+
+ list_for_each_entry(al, &notes->src->source, node) {
+ if (al->offset == -1)
+ continue;
+
+ len = strlen(disasm_line(al)->ins.name);
+ if (max_name < len)
+ max_name = len;
+ }
+
+ return max_name;
+}
+
+void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
+{
+ notes->widths.addr = notes->widths.target =
+ notes->widths.min_addr = hex_width(symbol__size(sym));
+ notes->widths.max_addr = hex_width(sym->end);
+ notes->widths.jumps = width_jumps(notes->max_jump_sources);
+ notes->widths.max_ins_name = annotation__max_ins_name(notes);
+}
+
+void annotation__update_column_widths(struct annotation *notes)
+{
+ if (notes->options->use_offset)
+ notes->widths.target = notes->widths.min_addr;
+ else
+ notes->widths.target = notes->widths.max_addr;
+
+ notes->widths.addr = notes->widths.target;
+
+ if (notes->options->show_nr_jumps)
+ notes->widths.addr += notes->widths.jumps + 1;
+}
+
+static void annotation__calc_lines(struct annotation *notes, struct map *map,
+ struct rb_root *root,
+ struct annotation_options *opts)
+{
+ struct annotation_line *al;
+ struct rb_root tmp_root = RB_ROOT;
+
+ list_for_each_entry(al, &notes->src->source, node) {
+ double percent_max = 0.0;
+ int i;
+
+ for (i = 0; i < al->data_nr; i++) {
+ double percent;
+
+ percent = annotation_data__percent(&al->data[i],
+ opts->percent_type);
+
+ if (percent > percent_max)
+ percent_max = percent;
+ }
+
+ if (percent_max <= 0.5)
+ continue;
+
+ al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
+ false, true, notes->start + al->offset);
+ insert_source_line(&tmp_root, al, opts);
+ }
+
+ resort_source_line(root, &tmp_root);
+}
+
+static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
+ struct annotation_options *opts)
+{
+ struct annotation *notes = symbol__annotation(ms->sym);
+
+ annotation__calc_lines(notes, ms->map, root, opts);
+}
+
+int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *opts)
+{
+ struct dso *dso = ms->map->dso;
+ struct symbol *sym = ms->sym;
+ struct rb_root source_line = RB_ROOT;
+ struct hists *hists = evsel__hists(evsel);
+ char buf[1024];
+
+ if (symbol__annotate2(ms, evsel, opts, NULL) < 0)
+ return -1;
+
+ if (opts->print_lines) {
+ srcline_full_filename = opts->full_path;
+ symbol__calc_lines(ms, &source_line, opts);
+ print_summary(&source_line, dso->long_name);
+ }
+
+ hists__scnprintf_title(hists, buf, sizeof(buf));
+ fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
+ buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
+ symbol__annotate_fprintf2(sym, stdout, opts);
+
+ annotated_source__purge(symbol__annotation(sym)->src);
+
+ return 0;
+}
+
+int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *opts)
+{
+ struct dso *dso = ms->map->dso;
+ struct symbol *sym = ms->sym;
+ struct rb_root source_line = RB_ROOT;
+
+ if (symbol__annotate(ms, evsel, opts, NULL) < 0)
+ return -1;
+
+ symbol__calc_percent(sym, evsel);
+
+ if (opts->print_lines) {
+ srcline_full_filename = opts->full_path;
+ symbol__calc_lines(ms, &source_line, opts);
+ print_summary(&source_line, dso->long_name);
+ }
+
+ symbol__annotate_printf(ms, evsel, opts);
+
+ annotated_source__purge(symbol__annotation(sym)->src);
+
+ return 0;
+}
+
+bool ui__has_annotation(void)
+{
+ return use_browser == 1 && perf_hpp_list.sym;
+}
+
+
+static double annotation_line__max_percent(struct annotation_line *al,
+ struct annotation *notes,
+ unsigned int percent_type)
+{
+ double percent_max = 0.0;
+ int i;
+
+ for (i = 0; i < notes->nr_events; i++) {
+ double percent;
+
+ percent = annotation_data__percent(&al->data[i],
+ percent_type);
+
+ if (percent > percent_max)
+ percent_max = percent;
+ }
+
+ return percent_max;
+}
+
+static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
+ void *obj, char *bf, size_t size,
+ void (*obj__printf)(void *obj, const char *fmt, ...),
+ void (*obj__write_graph)(void *obj, int graph))
+{
+ if (dl->ins.ops && dl->ins.ops->scnprintf) {
+ if (ins__is_jump(&dl->ins)) {
+ bool fwd;
+
+ if (dl->ops.target.outside)
+ goto call_like;
+ fwd = dl->ops.target.offset > dl->al.offset;
+ obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
+ obj__printf(obj, " ");
+ } else if (ins__is_call(&dl->ins)) {
+call_like:
+ obj__write_graph(obj, RARROW_CHAR);
+ obj__printf(obj, " ");
+ } else if (ins__is_ret(&dl->ins)) {
+ obj__write_graph(obj, LARROW_CHAR);
+ obj__printf(obj, " ");
+ } else {
+ obj__printf(obj, " ");
+ }
+ } else {
+ obj__printf(obj, " ");
+ }
+
+ disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
+}
+
+static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
+{
+ double ipc = 0.0, coverage = 0.0;
+
+ if (notes->hit_cycles)
+ ipc = notes->hit_insn / ((double)notes->hit_cycles);
+
+ if (notes->total_insn) {
+ coverage = notes->cover_insn * 100.0 /
+ ((double)notes->total_insn);
+ }
+
+ scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
+ ipc, coverage);
+}
+
+static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
+ bool first_line, bool current_entry, bool change_color, int width,
+ void *obj, unsigned int percent_type,
+ int (*obj__set_color)(void *obj, int color),
+ void (*obj__set_percent_color)(void *obj, double percent, bool current),
+ int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
+ void (*obj__printf)(void *obj, const char *fmt, ...),
+ void (*obj__write_graph)(void *obj, int graph))
+
+{
+ double percent_max = annotation_line__max_percent(al, notes, percent_type);
+ int pcnt_width = annotation__pcnt_width(notes),
+ cycles_width = annotation__cycles_width(notes);
+ bool show_title = false;
+ char bf[256];
+ int printed;
+
+ if (first_line && (al->offset == -1 || percent_max == 0.0)) {
+ if (notes->have_cycles) {
+ if (al->ipc == 0.0 && al->cycles == 0)
+ show_title = true;
+ } else
+ show_title = true;
+ }
+
+ if (al->offset != -1 && percent_max != 0.0) {
+ int i;
+
+ for (i = 0; i < notes->nr_events; i++) {
+ double percent;
+
+ percent = annotation_data__percent(&al->data[i], percent_type);
+
+ obj__set_percent_color(obj, percent, current_entry);
+ if (symbol_conf.show_total_period) {
+ obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
+ } else if (symbol_conf.show_nr_samples) {
+ obj__printf(obj, "%6" PRIu64 " ",
+ al->data[i].he.nr_samples);
+ } else {
+ obj__printf(obj, "%6.2f ", percent);
+ }
+ }
+ } else {
+ obj__set_percent_color(obj, 0, current_entry);
+
+ if (!show_title)
+ obj__printf(obj, "%-*s", pcnt_width, " ");
+ else {
+ obj__printf(obj, "%-*s", pcnt_width,
+ symbol_conf.show_total_period ? "Period" :
+ symbol_conf.show_nr_samples ? "Samples" : "Percent");
+ }
+ }
+
+ if (notes->have_cycles) {
+ if (al->ipc)
+ obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
+ else if (!show_title)
+ obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
+ else
+ obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
+
+ if (!notes->options->show_minmax_cycle) {
+ if (al->cycles)
+ obj__printf(obj, "%*" PRIu64 " ",
+ ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
+ else if (!show_title)
+ obj__printf(obj, "%*s",
+ ANNOTATION__CYCLES_WIDTH, " ");
+ else
+ obj__printf(obj, "%*s ",
+ ANNOTATION__CYCLES_WIDTH - 1,
+ "Cycle");
+ } else {
+ if (al->cycles) {
+ char str[32];
+
+ scnprintf(str, sizeof(str),
+ "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
+ al->cycles, al->cycles_min,
+ al->cycles_max);
+
+ obj__printf(obj, "%*s ",
+ ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
+ str);
+ } else if (!show_title)
+ obj__printf(obj, "%*s",
+ ANNOTATION__MINMAX_CYCLES_WIDTH,
+ " ");
+ else
+ obj__printf(obj, "%*s ",
+ ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
+ "Cycle(min/max)");
+ }
+
+ if (show_title && !*al->line) {
+ ipc_coverage_string(bf, sizeof(bf), notes);
+ obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
+ }
+ }
+
+ obj__printf(obj, " ");
+
+ if (!*al->line)
+ obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
+ else if (al->offset == -1) {
+ if (al->line_nr && notes->options->show_linenr)
+ printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
+ else
+ printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " ");
+ obj__printf(obj, bf);
+ obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
+ } else {
+ u64 addr = al->offset;
+ int color = -1;
+
+ if (!notes->options->use_offset)
+ addr += notes->start;
+
+ if (!notes->options->use_offset) {
+ printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
+ } else {
+ if (al->jump_sources &&
+ notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
+ if (notes->options->show_nr_jumps) {
+ int prev;
+ printed = scnprintf(bf, sizeof(bf), "%*d ",
+ notes->widths.jumps,
+ al->jump_sources);
+ prev = obj__set_jumps_percent_color(obj, al->jump_sources,
+ current_entry);
+ obj__printf(obj, bf);
+ obj__set_color(obj, prev);
+ }
+print_addr:
+ printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
+ notes->widths.target, addr);
+ } else if (ins__is_call(&disasm_line(al)->ins) &&
+ notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
+ goto print_addr;
+ } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
+ goto print_addr;
+ } else {
+ printed = scnprintf(bf, sizeof(bf), "%-*s ",
+ notes->widths.addr, " ");
+ }
+ }
+
+ if (change_color)
+ color = obj__set_color(obj, HE_COLORSET_ADDR);
+ obj__printf(obj, bf);
+ if (change_color)
+ obj__set_color(obj, color);
+
+ disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
+
+ obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
+ }
+
+}
+
+void annotation_line__write(struct annotation_line *al, struct annotation *notes,
+ struct annotation_write_ops *wops,
+ struct annotation_options *opts)
+{
+ __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
+ wops->change_color, wops->width, wops->obj,
+ opts->percent_type,
+ wops->set_color, wops->set_percent_color,
+ wops->set_jumps_percent_color, wops->printf,
+ wops->write_graph);
+}
+
+int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
+ struct annotation_options *options, struct arch **parch)
+{
+ struct symbol *sym = ms->sym;
+ struct annotation *notes = symbol__annotation(sym);
+ size_t size = symbol__size(sym);
+ int nr_pcnt = 1, err;
+
+ notes->offsets = zalloc(size * sizeof(struct annotation_line *));
+ if (notes->offsets == NULL)
+ return ENOMEM;
+
+ if (evsel__is_group_event(evsel))
+ nr_pcnt = evsel->core.nr_members;
+
+ err = symbol__annotate(ms, evsel, options, parch);
+ if (err)
+ goto out_free_offsets;
+
+ notes->options = options;
+
+ symbol__calc_percent(sym, evsel);
+
+ annotation__set_offsets(notes, size);
+ annotation__mark_jump_targets(notes, sym);
+ annotation__compute_ipc(notes, size);
+ annotation__init_column_widths(notes, sym);
+ notes->nr_events = nr_pcnt;
+
+ annotation__update_column_widths(notes);
+ sym->annotate2 = true;
+
+ return 0;
+
+out_free_offsets:
+ zfree(&notes->offsets);
+ return err;
+}
+
+static int annotation__config(const char *var, const char *value, void *data)
+{
+ struct annotation_options *opt = data;
+
+ if (!strstarts(var, "annotate."))
+ return 0;
+
+ if (!strcmp(var, "annotate.offset_level")) {
+ perf_config_u8(&opt->offset_level, "offset_level", value);
+
+ if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
+ opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
+ else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
+ opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
+ } else if (!strcmp(var, "annotate.hide_src_code")) {
+ opt->hide_src_code = perf_config_bool("hide_src_code", value);
+ } else if (!strcmp(var, "annotate.jump_arrows")) {
+ opt->jump_arrows = perf_config_bool("jump_arrows", value);
+ } else if (!strcmp(var, "annotate.show_linenr")) {
+ opt->show_linenr = perf_config_bool("show_linenr", value);
+ } else if (!strcmp(var, "annotate.show_nr_jumps")) {
+ opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
+ } else if (!strcmp(var, "annotate.show_nr_samples")) {
+ symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
+ value);
+ } else if (!strcmp(var, "annotate.show_total_period")) {
+ symbol_conf.show_total_period = perf_config_bool("show_total_period",
+ value);
+ } else if (!strcmp(var, "annotate.use_offset")) {
+ opt->use_offset = perf_config_bool("use_offset", value);
+ } else if (!strcmp(var, "annotate.disassembler_style")) {
+ opt->disassembler_style = value;
+ } else {
+ pr_debug("%s variable unknown, ignoring...", var);
+ }
+
+ return 0;
+}
+
+void annotation_config__init(struct annotation_options *opt)
+{
+ perf_config(annotation__config, opt);
+}
+
+static unsigned int parse_percent_type(char *str1, char *str2)
+{
+ unsigned int type = (unsigned int) -1;
+
+ if (!strcmp("period", str1)) {
+ if (!strcmp("local", str2))
+ type = PERCENT_PERIOD_LOCAL;
+ else if (!strcmp("global", str2))
+ type = PERCENT_PERIOD_GLOBAL;
+ }
+
+ if (!strcmp("hits", str1)) {
+ if (!strcmp("local", str2))
+ type = PERCENT_HITS_LOCAL;
+ else if (!strcmp("global", str2))
+ type = PERCENT_HITS_GLOBAL;
+ }
+
+ return type;
+}
+
+int annotate_parse_percent_type(const struct option *opt, const char *_str,
+ int unset __maybe_unused)
+{
+ struct annotation_options *opts = opt->value;
+ unsigned int type;
+ char *str1, *str2;
+ int err = -1;
+
+ str1 = strdup(_str);
+ if (!str1)
+ return -ENOMEM;
+
+ str2 = strchr(str1, '-');
+ if (!str2)
+ goto out;
+
+ *str2++ = 0;
+
+ type = parse_percent_type(str1, str2);
+ if (type == (unsigned int) -1)
+ type = parse_percent_type(str2, str1);
+ if (type != (unsigned int) -1) {
+ opts->percent_type = type;
+ err = 0;
+ }
+
+out:
+ free(str1);
+ return err;
+}
+
+int annotate_check_args(struct annotation_options *args)
+{
+ if (args->prefix_strip && !args->prefix) {
+ pr_err("--prefix-strip requires --prefix\n");
+ return -1;
+ }
+ return 0;
+}