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| author | Quentin Monnet <quentin@isovalent.com> | 2022-10-25 16:03:23 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-10-25 10:11:56 -0700 |
| commit | 55b4de58d0e2aca810ed2b198a0173640300acf8 (patch) | |
| tree | 76d2e01501176524959dc3dd1aaad71ea7fd79bd /tools/bpf/bpftool/prog.c | |
| parent | b3d84af7cdfc079ef86d94f7cf125821559925fa (diff) | |
| download | linux-55b4de58d0e2aca810ed2b198a0173640300acf8.tar.gz linux-55b4de58d0e2aca810ed2b198a0173640300acf8.tar.bz2 linux-55b4de58d0e2aca810ed2b198a0173640300acf8.zip | |
bpftool: Remove asserts from JIT disassembler
The JIT disassembler in bpftool is the only components (with the JSON
writer) using asserts to check the return values of functions. But it
does not do so in a consistent way, and diasm_print_insn() returns no
value, although sometimes the operation failed.
Remove the asserts, and instead check the return values, print messages
on errors, and propagate the error to the caller from prog.c.
Remove the inclusion of assert.h from jit_disasm.c, and also from map.c
where it is unused.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Tested-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Acked-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20221025150329.97371-3-quentin@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/bpf/bpftool/prog.c')
| -rw-r--r-- | tools/bpf/bpftool/prog.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c index dbf5489b8fde..93dfb89b85e3 100644 --- a/tools/bpf/bpftool/prog.c +++ b/tools/bpf/bpftool/prog.c @@ -822,10 +822,11 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, printf("%s:\n", sym_name); } - disasm_print_insn(img, lens[i], opcodes, - name, disasm_opt, btf, - prog_linfo, ksyms[i], i, - linum); + if (disasm_print_insn(img, lens[i], opcodes, + name, disasm_opt, btf, + prog_linfo, ksyms[i], i, + linum)) + goto exit_free; img += lens[i]; @@ -838,8 +839,10 @@ prog_dump(struct bpf_prog_info *info, enum dump_mode mode, if (json_output) jsonw_end_array(json_wtr); } else { - disasm_print_insn(buf, member_len, opcodes, name, - disasm_opt, btf, NULL, 0, 0, false); + if (disasm_print_insn(buf, member_len, opcodes, name, + disasm_opt, btf, NULL, 0, 0, + false)) + goto exit_free; } } else if (visual) { if (json_output) |