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![Song Liu](/assets/img/avatar_default.png)
In symbol__disassemble(), DSO_BINARY_TYPE__BPF_PROG_INFO dso calls into a new function symbol__disassemble_bpf(), where annotation line information is filled based on the bpf_prog_info and btf data saved in given perf_env. symbol__disassemble_bpf() uses binutils's libopcodes to disassemble bpf programs. Committer testing: After fixing this: - u64 *addrs = (u64 *)(info_linear->info.jited_ksyms); + u64 *addrs = (u64 *)(uintptr_t)(info_linear->info.jited_ksyms); Detected when crossbuilding to a 32-bit arch. And making all this dependent on HAVE_LIBBFD_SUPPORT and HAVE_LIBBPF_SUPPORT: 1) Have a BPF program running, one that has BTF info, etc, I used the tools/perf/examples/bpf/augmented_raw_syscalls.c put in place by 'perf trace'. # grep -B1 augmented_raw ~/.perfconfig [trace] add_events = /home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.c # # perf trace -e *mmsg dnf/6245 sendmmsg(20, 0x7f5485a88030, 2, MSG_NOSIGNAL) = 2 NetworkManager/10055 sendmmsg(22<socket:[1056822]>, 0x7f8126ad1bb0, 2, MSG_NOSIGNAL) = 2 2) Then do a 'perf record' system wide for a while: # perf record -a ^C[ perf record: Woken up 68 times to write data ] [ perf record: Captured and wrote 19.427 MB perf.data (366891 samples) ] # 3) Check that we captured BPF and BTF info in the perf.data file: # perf report --header-only | grep 'b[pt]f' # event : name = cycles:ppp, , id = { 294789, 294790, 294791, 294792, 294793, 294794, 294795, 294796 }, size = 112, { sample_period, sample_freq } = 4000, sample_type = IP|TID|TIME|CPU|PERIOD, read_format = ID, disabled = 1, inherit = 1, mmap = 1, comm = 1, freq = 1, task = 1, precise_ip = 3, sample_id_all = 1, exclude_guest = 1, mmap2 = 1, comm_exec = 1, ksymbol = 1, bpf_event = 1 # bpf_prog_info of id 13 # bpf_prog_info of id 14 # bpf_prog_info of id 15 # bpf_prog_info of id 16 # bpf_prog_info of id 17 # bpf_prog_info of id 18 # bpf_prog_info of id 21 # bpf_prog_info of id 22 # bpf_prog_info of id 41 # bpf_prog_info of id 42 # btf info of id 2 # 4) Check which programs got recorded: # perf report | grep bpf_prog | head 0.16% exe bpf_prog_819967866022f1e1_sys_enter [k] bpf_prog_819967866022f1e1_sys_enter 0.14% exe bpf_prog_c1bd85c092d6e4aa_sys_exit [k] bpf_prog_c1bd85c092d6e4aa_sys_exit 0.08% fuse-overlayfs bpf_prog_819967866022f1e1_sys_enter [k] bpf_prog_819967866022f1e1_sys_enter 0.07% fuse-overlayfs bpf_prog_c1bd85c092d6e4aa_sys_exit [k] bpf_prog_c1bd85c092d6e4aa_sys_exit 0.01% clang-4.0 bpf_prog_c1bd85c092d6e4aa_sys_exit [k] bpf_prog_c1bd85c092d6e4aa_sys_exit 0.01% clang-4.0 bpf_prog_819967866022f1e1_sys_enter [k] bpf_prog_819967866022f1e1_sys_enter 0.00% clang bpf_prog_c1bd85c092d6e4aa_sys_exit [k] bpf_prog_c1bd85c092d6e4aa_sys_exit 0.00% runc bpf_prog_819967866022f1e1_sys_enter [k] bpf_prog_819967866022f1e1_sys_enter 0.00% clang bpf_prog_819967866022f1e1_sys_enter [k] bpf_prog_819967866022f1e1_sys_enter 0.00% sh bpf_prog_c1bd85c092d6e4aa_sys_exit [k] bpf_prog_c1bd85c092d6e4aa_sys_exit # This was with the default --sort order for 'perf report', which is: --sort comm,dso,symbol If we just look for the symbol, for instance: # perf report --sort symbol | grep bpf_prog | head 0.26% [k] bpf_prog_819967866022f1e1_sys_enter - - 0.24% [k] bpf_prog_c1bd85c092d6e4aa_sys_exit - - # or the DSO: # perf report --sort dso | grep bpf_prog | head 0.26% bpf_prog_819967866022f1e1_sys_enter 0.24% bpf_prog_c1bd85c092d6e4aa_sys_exit # We'll see the two BPF programs that augmented_raw_syscalls.o puts in place, one attached to the raw_syscalls:sys_enter and another to the raw_syscalls:sys_exit tracepoints, as expected. Now we can finally do, from the command line, annotation for one of those two symbols, with the original BPF program source coude intermixed with the disassembled JITed code: # perf annotate --stdio2 bpf_prog_819967866022f1e1_sys_enter Samples: 950 of event 'cycles:ppp', 4000 Hz, Event count (approx.): 553756947, [percent: local period] bpf_prog_819967866022f1e1_sys_enter() bpf_prog_819967866022f1e1_sys_enter Percent int sys_enter(struct syscall_enter_args *args) 53.41 push %rbp 0.63 mov %rsp,%rbp 0.31 sub $0x170,%rsp 1.93 sub $0x28,%rbp 7.02 mov %rbx,0x0(%rbp) 3.20 mov %r13,0x8(%rbp) 1.07 mov %r14,0x10(%rbp) 0.61 mov %r15,0x18(%rbp) 0.11 xor %eax,%eax 1.29 mov %rax,0x20(%rbp) 0.11 mov %rdi,%rbx return bpf_get_current_pid_tgid(); 2.02 → callq *ffffffffda6776d9 2.76 mov %eax,-0x148(%rbp) mov %rbp,%rsi int sys_enter(struct syscall_enter_args *args) add $0xfffffffffffffeb8,%rsi return bpf_map_lookup_elem(pids, &pid) != NULL; movabs $0xffff975ac2607800,%rdi 1.26 → callq *ffffffffda6789e9 cmp $0x0,%rax 2.43 → je 0 add $0x38,%rax 0.21 xor %r13d,%r13d if (pid_filter__has(&pids_filtered, getpid())) 0.81 cmp $0x0,%rax → jne 0 mov %rbp,%rdi probe_read(&augmented_args.args, sizeof(augmented_args.args), args); 2.22 add $0xfffffffffffffeb8,%rdi 0.11 mov $0x40,%esi 0.32 mov %rbx,%rdx 2.74 → callq *ffffffffda658409 syscall = bpf_map_lookup_elem(&syscalls, &augmented_args.args.syscall_nr); 0.22 mov %rbp,%rsi 1.69 add $0xfffffffffffffec0,%rsi syscall = bpf_map_lookup_elem(&syscalls, &augmented_args.args.syscall_nr); movabs $0xffff975bfcd36000,%rdi add $0xd0,%rdi 0.21 mov 0x0(%rsi),%eax 0.93 cmp $0x200,%rax → jae 0 0.10 shl $0x3,%rax 0.11 add %rdi,%rax 0.11 → jmp 0 xor %eax,%eax if (syscall == NULL || !syscall->enabled) 1.07 cmp $0x0,%rax → je 0 if (syscall == NULL || !syscall->enabled) 6.57 movzbq 0x0(%rax),%rdi if (syscall == NULL || !syscall->enabled) cmp $0x0,%rdi 0.95 → je 0 mov $0x40,%r8d switch (augmented_args.args.syscall_nr) { mov -0x140(%rbp),%rdi switch (augmented_args.args.syscall_nr) { cmp $0x2,%rdi → je 0 cmp $0x101,%rdi → je 0 cmp $0x15,%rdi → jne 0 case SYS_OPEN: filename_arg = (const void *)args->args[0]; mov 0x10(%rbx),%rdx → jmp 0 case SYS_OPENAT: filename_arg = (const void *)args->args[1]; mov 0x18(%rbx),%rdx if (filename_arg != NULL) { cmp $0x0,%rdx → je 0 xor %edi,%edi augmented_args.filename.reserved = 0; mov %edi,-0x104(%rbp) augmented_args.filename.size = probe_read_str(&augmented_args.filename.value, mov %rbp,%rdi add $0xffffffffffffff00,%rdi augmented_args.filename.size = probe_read_str(&augmented_args.filename.value, mov $0x100,%esi → callq *ffffffffda658499 mov $0x148,%r8d augmented_args.filename.size = probe_read_str(&augmented_args.filename.value, mov %eax,-0x108(%rbp) augmented_args.filename.size = probe_read_str(&augmented_args.filename.value, mov %rax,%rdi shl $0x20,%rdi shr $0x20,%rdi if (augmented_args.filename.size < sizeof(augmented_args.filename.value)) { cmp $0xff,%rdi → ja 0 len -= sizeof(augmented_args.filename.value) - augmented_args.filename.size; add $0x48,%rax len &= sizeof(augmented_args.filename.value) - 1; and $0xff,%rax mov %rax,%r8 mov %rbp,%rcx return perf_event_output(args, &__augmented_syscalls__, BPF_F_CURRENT_CPU, &augmented_args, len); add $0xfffffffffffffeb8,%rcx mov %rbx,%rdi movabs $0xffff975fbd72d800,%rsi mov $0xffffffff,%edx → callq *ffffffffda658ad9 mov %rax,%r13 } mov %r13,%rax 0.72 mov 0x0(%rbp),%rbx mov 0x8(%rbp),%r13 1.16 mov 0x10(%rbp),%r14 0.10 mov 0x18(%rbp),%r15 0.42 add $0x28,%rbp 0.54 leaveq 0.54 ← retq # Please see 'man perf-config' to see how to control what should be seen, via ~/.perfconfig [annotate] section, for instance, one can suppress the source code and see just the disassembly, etc. Alternatively, use the TUI bu just using 'perf annotate', press '/bpf_prog' to see the bpf symbols, press enter and do the interactive annotation, which allows for dumping to a file after selecting the the various output tunables, for instance, the above without source code intermixed, plus showing all the instruction offsets: # perf annotate bpf_prog_819967866022f1e1_sys_enter Then press: 's' to hide the source code + 'O' twice to show all instruction offsets, then 'P' to print to the bpf_prog_819967866022f1e1_sys_enter.annotation file, which will have: # cat bpf_prog_819967866022f1e1_sys_enter.annotation bpf_prog_819967866022f1e1_sys_enter() bpf_prog_819967866022f1e1_sys_enter Event: cycles:ppp 53.41 0: push %rbp 0.63 1: mov %rsp,%rbp 0.31 4: sub $0x170,%rsp 1.93 b: sub $0x28,%rbp 7.02 f: mov %rbx,0x0(%rbp) 3.20 13: mov %r13,0x8(%rbp) 1.07 17: mov %r14,0x10(%rbp) 0.61 1b: mov %r15,0x18(%rbp) 0.11 1f: xor %eax,%eax 1.29 21: mov %rax,0x20(%rbp) 0.11 25: mov %rdi,%rbx 2.02 28: → callq *ffffffffda6776d9 2.76 2d: mov %eax,-0x148(%rbp) 33: mov %rbp,%rsi 36: add $0xfffffffffffffeb8,%rsi 3d: movabs $0xffff975ac2607800,%rdi 1.26 47: → callq *ffffffffda6789e9 4c: cmp $0x0,%rax 2.43 50: → je 0 52: add $0x38,%rax 0.21 56: xor %r13d,%r13d 0.81 59: cmp $0x0,%rax 5d: → jne 0 63: mov %rbp,%rdi 2.22 66: add $0xfffffffffffffeb8,%rdi 0.11 6d: mov $0x40,%esi 0.32 72: mov %rbx,%rdx 2.74 75: → callq *ffffffffda658409 0.22 7a: mov %rbp,%rsi 1.69 7d: add $0xfffffffffffffec0,%rsi 84: movabs $0xffff975bfcd36000,%rdi 8e: add $0xd0,%rdi 0.21 95: mov 0x0(%rsi),%eax 0.93 98: cmp $0x200,%rax 9f: → jae 0 0.10 a1: shl $0x3,%rax 0.11 a5: add %rdi,%rax 0.11 a8: → jmp 0 aa: xor %eax,%eax 1.07 ac: cmp $0x0,%rax b0: → je 0 6.57 b6: movzbq 0x0(%rax),%rdi bb: cmp $0x0,%rdi 0.95 bf: → je 0 c5: mov $0x40,%r8d cb: mov -0x140(%rbp),%rdi d2: cmp $0x2,%rdi d6: → je 0 d8: cmp $0x101,%rdi df: → je 0 e1: cmp $0x15,%rdi e5: → jne 0 e7: mov 0x10(%rbx),%rdx eb: → jmp 0 ed: mov 0x18(%rbx),%rdx f1: cmp $0x0,%rdx f5: → je 0 f7: xor %edi,%edi f9: mov %edi,-0x104(%rbp) ff: mov %rbp,%rdi 102: add $0xffffffffffffff00,%rdi 109: mov $0x100,%esi 10e: → callq *ffffffffda658499 113: mov $0x148,%r8d 119: mov %eax,-0x108(%rbp) 11f: mov %rax,%rdi 122: shl $0x20,%rdi 126: shr $0x20,%rdi 12a: cmp $0xff,%rdi 131: → ja 0 133: add $0x48,%rax 137: and $0xff,%rax 13d: mov %rax,%r8 140: mov %rbp,%rcx 143: add $0xfffffffffffffeb8,%rcx 14a: mov %rbx,%rdi 14d: movabs $0xffff975fbd72d800,%rsi 157: mov $0xffffffff,%edx 15c: → callq *ffffffffda658ad9 161: mov %rax,%r13 164: mov %r13,%rax 0.72 167: mov 0x0(%rbp),%rbx 16b: mov 0x8(%rbp),%r13 1.16 16f: mov 0x10(%rbp),%r14 0.10 173: mov 0x18(%rbp),%r15 0.42 177: add $0x28,%rbp 0.54 17b: leaveq 0.54 17c: ← retq Another cool way to test all this is to symple use 'perf top' look for those symbols, go there and press enter, annotate it live :-) Signed-off-by: Song Liu <songliubraving@fb.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stanislav Fomichev <sdf@google.com> Link: http://lkml.kernel.org/r/20190312053051.2690567-13-songliubraving@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
418 lines
11 KiB
C
418 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_ANNOTATE_H
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#define __PERF_ANNOTATE_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <pthread.h>
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#include <asm/bug.h>
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#include "symbol_conf.h"
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struct hist_browser_timer;
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struct hist_entry;
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struct ins_ops;
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struct map;
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struct map_symbol;
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struct addr_map_symbol;
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struct option;
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struct perf_sample;
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struct perf_evsel;
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struct symbol;
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struct ins {
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const char *name;
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struct ins_ops *ops;
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};
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struct ins_operands {
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char *raw;
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char *raw_comment;
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struct {
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char *raw;
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char *name;
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struct symbol *sym;
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u64 addr;
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s64 offset;
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bool offset_avail;
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bool outside;
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} target;
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union {
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struct {
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char *raw;
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char *name;
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u64 addr;
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} source;
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struct {
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struct ins ins;
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struct ins_operands *ops;
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} locked;
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};
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};
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struct arch;
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struct ins_ops {
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void (*free)(struct ins_operands *ops);
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int (*parse)(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms);
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int (*scnprintf)(struct ins *ins, char *bf, size_t size,
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struct ins_operands *ops, int max_ins_name);
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};
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bool ins__is_jump(const struct ins *ins);
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bool ins__is_call(const struct ins *ins);
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bool ins__is_ret(const struct ins *ins);
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bool ins__is_lock(const struct ins *ins);
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int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops, int max_ins_name);
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bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
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#define ANNOTATION__IPC_WIDTH 6
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#define ANNOTATION__CYCLES_WIDTH 6
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#define ANNOTATION__MINMAX_CYCLES_WIDTH 19
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#define ANNOTATION__AVG_IPC_WIDTH 36
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struct annotation_options {
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bool hide_src_code,
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use_offset,
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jump_arrows,
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print_lines,
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full_path,
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show_linenr,
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show_nr_jumps,
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show_nr_samples,
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show_total_period,
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show_minmax_cycle,
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show_asm_raw,
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annotate_src;
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u8 offset_level;
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int min_pcnt;
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int max_lines;
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int context;
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const char *objdump_path;
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const char *disassembler_style;
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unsigned int percent_type;
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};
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enum {
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ANNOTATION__OFFSET_JUMP_TARGETS = 1,
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ANNOTATION__OFFSET_CALL,
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ANNOTATION__MAX_OFFSET_LEVEL,
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};
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#define ANNOTATION__MIN_OFFSET_LEVEL ANNOTATION__OFFSET_JUMP_TARGETS
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extern struct annotation_options annotation__default_options;
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struct annotation;
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struct sym_hist_entry {
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u64 nr_samples;
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u64 period;
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};
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enum {
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PERCENT_HITS_LOCAL,
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PERCENT_HITS_GLOBAL,
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PERCENT_PERIOD_LOCAL,
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PERCENT_PERIOD_GLOBAL,
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PERCENT_MAX,
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};
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struct annotation_data {
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double percent[PERCENT_MAX];
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double percent_sum;
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struct sym_hist_entry he;
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};
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struct annotation_line {
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struct list_head node;
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struct rb_node rb_node;
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s64 offset;
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char *line;
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int line_nr;
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int jump_sources;
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float ipc;
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u64 cycles;
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u64 cycles_max;
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u64 cycles_min;
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size_t privsize;
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char *path;
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u32 idx;
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int idx_asm;
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int data_nr;
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struct annotation_data data[0];
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};
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struct disasm_line {
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struct ins ins;
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struct ins_operands ops;
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/* This needs to be at the end. */
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struct annotation_line al;
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};
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static inline double annotation_data__percent(struct annotation_data *data,
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unsigned int which)
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{
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return which < PERCENT_MAX ? data->percent[which] : -1;
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}
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static inline const char *percent_type_str(unsigned int type)
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{
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static const char *str[PERCENT_MAX] = {
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"local hits",
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"global hits",
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"local period",
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"global period",
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};
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if (WARN_ON(type >= PERCENT_MAX))
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return "N/A";
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return str[type];
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}
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static inline struct disasm_line *disasm_line(struct annotation_line *al)
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{
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return al ? container_of(al, struct disasm_line, al) : NULL;
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}
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/*
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* Is this offset in the same function as the line it is used?
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* asm functions jump to other functions, for instance.
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*/
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static inline bool disasm_line__has_local_offset(const struct disasm_line *dl)
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{
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return dl->ops.target.offset_avail && !dl->ops.target.outside;
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}
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/*
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* Can we draw an arrow from the jump to its target, for instance? I.e.
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* is the jump and its target in the same function?
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*/
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bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym);
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void disasm_line__free(struct disasm_line *dl);
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struct annotation_line *
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annotation_line__next(struct annotation_line *pos, struct list_head *head);
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struct annotation_write_ops {
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bool first_line, current_entry, change_color;
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int width;
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void *obj;
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int (*set_color)(void *obj, int color);
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void (*set_percent_color)(void *obj, double percent, bool current);
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int (*set_jumps_percent_color)(void *obj, int nr, bool current);
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void (*printf)(void *obj, const char *fmt, ...);
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void (*write_graph)(void *obj, int graph);
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};
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void annotation_line__write(struct annotation_line *al, struct annotation *notes,
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struct annotation_write_ops *ops,
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struct annotation_options *opts);
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int __annotation__scnprintf_samples_period(struct annotation *notes,
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char *bf, size_t size,
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struct perf_evsel *evsel,
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bool show_freq);
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int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name);
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size_t disasm__fprintf(struct list_head *head, FILE *fp);
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void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel);
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struct sym_hist {
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u64 nr_samples;
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u64 period;
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struct sym_hist_entry addr[0];
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};
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struct cyc_hist {
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u64 start;
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u64 cycles;
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u64 cycles_aggr;
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u64 cycles_max;
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u64 cycles_min;
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u32 num;
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u32 num_aggr;
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u8 have_start;
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/* 1 byte padding */
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u16 reset;
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};
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/** struct annotated_source - symbols with hits have this attached as in sannotation
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*
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* @histograms: Array of addr hit histograms per event being monitored
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* nr_histograms: This may not be the same as evsel->evlist->nr_entries if
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* we have more than a group in a evlist, where we will want
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* to see each group separately, that is why symbol__annotate2()
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* sets src->nr_histograms to evsel->nr_members.
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* @lines: If 'print_lines' is specified, per source code line percentages
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* @source: source parsed from a disassembler like objdump -dS
|
|
* @cyc_hist: Average cycles per basic block
|
|
*
|
|
* lines is allocated, percentages calculated and all sorted by percentage
|
|
* when the annotation is about to be presented, so the percentages are for
|
|
* one of the entries in the histogram array, i.e. for the event/counter being
|
|
* presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
|
|
* returns.
|
|
*/
|
|
struct annotated_source {
|
|
struct list_head source;
|
|
int nr_histograms;
|
|
size_t sizeof_sym_hist;
|
|
struct cyc_hist *cycles_hist;
|
|
struct sym_hist *histograms;
|
|
};
|
|
|
|
struct annotation {
|
|
pthread_mutex_t lock;
|
|
u64 max_coverage;
|
|
u64 start;
|
|
u64 hit_cycles;
|
|
u64 hit_insn;
|
|
unsigned int total_insn;
|
|
unsigned int cover_insn;
|
|
struct annotation_options *options;
|
|
struct annotation_line **offsets;
|
|
int nr_events;
|
|
int nr_jumps;
|
|
int max_jump_sources;
|
|
int nr_entries;
|
|
int nr_asm_entries;
|
|
u16 max_line_len;
|
|
struct {
|
|
u8 addr;
|
|
u8 jumps;
|
|
u8 target;
|
|
u8 min_addr;
|
|
u8 max_addr;
|
|
u8 max_ins_name;
|
|
} widths;
|
|
bool have_cycles;
|
|
struct annotated_source *src;
|
|
};
|
|
|
|
static inline int annotation__cycles_width(struct annotation *notes)
|
|
{
|
|
if (notes->have_cycles && notes->options->show_minmax_cycle)
|
|
return ANNOTATION__IPC_WIDTH + ANNOTATION__MINMAX_CYCLES_WIDTH;
|
|
|
|
return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
|
|
}
|
|
|
|
static inline int annotation__pcnt_width(struct annotation *notes)
|
|
{
|
|
return (notes->options->show_total_period ? 12 : 7) * notes->nr_events;
|
|
}
|
|
|
|
static inline bool annotation_line__filter(struct annotation_line *al, struct annotation *notes)
|
|
{
|
|
return notes->options->hide_src_code && al->offset == -1;
|
|
}
|
|
|
|
void annotation__set_offsets(struct annotation *notes, s64 size);
|
|
void annotation__compute_ipc(struct annotation *notes, size_t size);
|
|
void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym);
|
|
void annotation__update_column_widths(struct annotation *notes);
|
|
void annotation__init_column_widths(struct annotation *notes, struct symbol *sym);
|
|
|
|
static inline struct sym_hist *annotated_source__histogram(struct annotated_source *src, int idx)
|
|
{
|
|
return ((void *)src->histograms) + (src->sizeof_sym_hist * idx);
|
|
}
|
|
|
|
static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
|
|
{
|
|
return annotated_source__histogram(notes->src, idx);
|
|
}
|
|
|
|
static inline struct annotation *symbol__annotation(struct symbol *sym)
|
|
{
|
|
return (void *)sym - symbol_conf.priv_size;
|
|
}
|
|
|
|
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
|
|
struct perf_evsel *evsel);
|
|
|
|
int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
|
|
struct addr_map_symbol *start,
|
|
unsigned cycles);
|
|
|
|
int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
|
|
struct perf_evsel *evsel, u64 addr);
|
|
|
|
struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists);
|
|
void symbol__annotate_zero_histograms(struct symbol *sym);
|
|
|
|
int symbol__annotate(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel, size_t privsize,
|
|
struct annotation_options *options,
|
|
struct arch **parch);
|
|
int symbol__annotate2(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel,
|
|
struct annotation_options *options,
|
|
struct arch **parch);
|
|
|
|
enum symbol_disassemble_errno {
|
|
SYMBOL_ANNOTATE_ERRNO__SUCCESS = 0,
|
|
|
|
/*
|
|
* Choose an arbitrary negative big number not to clash with standard
|
|
* errno since SUS requires the errno has distinct positive values.
|
|
* See 'Issue 6' in the link below.
|
|
*
|
|
* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
|
|
*/
|
|
__SYMBOL_ANNOTATE_ERRNO__START = -10000,
|
|
|
|
SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX = __SYMBOL_ANNOTATE_ERRNO__START,
|
|
SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF,
|
|
|
|
__SYMBOL_ANNOTATE_ERRNO__END,
|
|
};
|
|
|
|
int symbol__strerror_disassemble(struct symbol *sym, struct map *map,
|
|
int errnum, char *buf, size_t buflen);
|
|
|
|
int symbol__annotate_printf(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel,
|
|
struct annotation_options *options);
|
|
void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
|
|
void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
|
|
void annotated_source__purge(struct annotated_source *as);
|
|
|
|
int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel,
|
|
struct annotation_options *opts);
|
|
|
|
bool ui__has_annotation(void);
|
|
|
|
int symbol__tty_annotate(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel, struct annotation_options *opts);
|
|
|
|
int symbol__tty_annotate2(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel, struct annotation_options *opts);
|
|
|
|
#ifdef HAVE_SLANG_SUPPORT
|
|
int symbol__tui_annotate(struct symbol *sym, struct map *map,
|
|
struct perf_evsel *evsel,
|
|
struct hist_browser_timer *hbt,
|
|
struct annotation_options *opts);
|
|
#else
|
|
static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
|
|
struct map *map __maybe_unused,
|
|
struct perf_evsel *evsel __maybe_unused,
|
|
struct hist_browser_timer *hbt __maybe_unused,
|
|
struct annotation_options *opts __maybe_unused)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void annotation_config__init(void);
|
|
|
|
int annotate_parse_percent_type(const struct option *opt, const char *_str,
|
|
int unset);
|
|
#endif /* __PERF_ANNOTATE_H */
|