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Diffstat (limited to 'tools/perf/util/disasm.c')
-rw-r--r--tools/perf/util/disasm.c187
1 files changed, 1 insertions, 186 deletions
diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
index 410e52cd9cfd..85fb0cfedf94 100644
--- a/tools/perf/util/disasm.c
+++ b/tools/perf/util/disasm.c
@@ -16,6 +16,7 @@
#include "build-id.h"
#include "debug.h"
#include "disasm.h"
+#include "disasm_bpf.h"
#include "dso.h"
#include "env.h"
#include "evsel.h"
@@ -1323,192 +1324,6 @@ fallback:
return 0;
}
-#if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
-#define PACKAGE "perf"
-#include <bfd.h>
-#include <dis-asm.h>
-#include <bpf/bpf.h>
-#include <bpf/btf.h>
-#include <bpf/libbpf.h>
-#include <linux/btf.h>
-#include <tools/dis-asm-compat.h>
-
-#include "bpf-event.h"
-#include "bpf-utils.h"
-
-static int symbol__disassemble_bpf(struct symbol *sym,
- struct annotate_args *args)
-{
- struct annotation *notes = symbol__annotation(sym);
- 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 perf_bpil *info_linear;
- struct disassemble_info info;
- struct dso *dso = map__dso(map);
- 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) != 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_compat(&info, s,
- (fprintf_ftype) fprintf,
- fprintf_styled);
- info.arch = bfd_get_arch(bfdf);
- info.mach = bfd_get_mach(bfdf);
-
- info_node = perf_env__find_bpf_prog_info(dso__bpf_prog(dso)->env,
- dso__bpf_prog(dso)->id);
- if (!info_node) {
- ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
- goto out;
- }
- info_linear = info_node->info_linear;
- sub_id = dso__bpf_prog(dso)->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(dso)->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 (!annotate_opts.hide_src_code && srcline) {
- args->offset = -1;
- args->line = strdup(srcline);
- args->line_nr = 0;
- args->fileloc = NULL;
- 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->fileloc = NULL;
- 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);
- btf__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;
- args->fileloc = NULL;
- dl = disasm_line__new(args);
- if (dl)
- annotation_line__add(&dl->al, &notes->src->source);
-
- zfree(&args->line);
- return 0;
-}
-
#ifdef HAVE_LIBCAPSTONE_SUPPORT
#include <capstone/capstone.h>