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authorAndres Freund <andres@anarazel.de>2022-07-31 18:38:30 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-08-01 15:30:22 -0300
commit83aa0120487e8bc3f231e72c460add783f71f17c (patch)
tree0f8f10d6502fe5d924dbbeeae676f8a895e88930 /tools/perf/util/annotate.c
parenttools include: add dis-asm-compat.h to handle version differences (diff)
downloadlinux-dev-83aa0120487e8bc3f231e72c460add783f71f17c.tar.xz
linux-dev-83aa0120487e8bc3f231e72c460add783f71f17c.zip
tools perf: Fix compilation error with new binutils
binutils changed the signature of init_disassemble_info(), which now causes compilation failures for tools/perf/util/annotate.c, e.g. on debian unstable. Relevant binutils commit: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07 Wire up the feature test and switch to init_disassemble_info_compat(), which were introduced in prior commits, fixing the compilation failure. I verified that perf can still disassemble bpf programs by using bpftrace under load, recording a perf trace, and then annotating the bpf "function" with and without the changes. With old binutils there's no change in output before/after this patch. When comparing the output from old binutils (2.35) to new bintuils with the patch (upstream snapshot) there are a few output differences, but they are unrelated to this patch. An example hunk is: 1.15 : 55:mov %rbp,%rdx 0.00 : 58:add $0xfffffffffffffff8,%rdx 0.00 : 5c:xor %ecx,%ecx - 1.03 : 5e:callq 0xffffffffe12aca3c + 1.03 : 5e:call 0xffffffffe12aca3c 0.00 : 63:xor %eax,%eax - 2.18 : 65:leaveq - 2.82 : 66:retq + 2.18 : 65:leave + 2.82 : 66:ret Signed-off-by: Andres Freund <andres@anarazel.de> Acked-by: Quentin Monnet <quentin@isovalent.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Ben Hutchings <benh@debian.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Link: https://lore.kernel.org/r/20220801013834.156015-5-andres@anarazel.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
-rw-r--r--tools/perf/util/annotate.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 82cc396ef516..2c6a485c3de5 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1720,6 +1720,7 @@ fallback:
#include <bpf/btf.h>
#include <bpf/libbpf.h>
#include <linux/btf.h>
+#include <tools/dis-asm-compat.h>
static int symbol__disassemble_bpf(struct symbol *sym,
struct annotate_args *args)
@@ -1762,9 +1763,9 @@ static int symbol__disassemble_bpf(struct symbol *sym,
ret = errno;
goto out;
}
- init_disassemble_info(&info, s,
- (fprintf_ftype) fprintf);
-
+ init_disassemble_info_compat(&info, s,
+ (fprintf_ftype) fprintf,
+ fprintf_styled);
info.arch = bfd_get_arch(bfdf);
info.mach = bfd_get_mach(bfdf);