[openwrt/openwrt] kernel: Fix perf build with binutils 2.40
LEDE Commits
lede-commits at lists.infradead.org
Tue Mar 7 13:32:34 PST 2023
hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/fb06f533b355fad4268ae49f5dcf986afff60371
commit fb06f533b355fad4268ae49f5dcf986afff60371
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Mon Mar 6 23:39:51 2023 +0100
kernel: Fix perf build with binutils 2.40
Backport patches from kernel 6.0 which are fixing building of perf with
binutils 2.40.
perf with kernel 5.10 is also not building but the backporting is more
complicated and only a few targets are still using kernel 5.10.
Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
...-Add-feature-test-for-init_disassemble_in.patch | 95 ++++++++++++++
...de-add-dis-asm-compat.h-to-handle-version.patch | 96 ++++++++++++++
...f-Fix-compilation-error-with-new-binutils.patch | 111 ++++++++++++++++
...it_disasm-Fix-compilation-error-with-new-.patch | 102 ++++++++++++++
...ol-Fix-compilation-error-with-new-binutil.patch | 146 +++++++++++++++++++++
5 files changed, 550 insertions(+)
diff --git a/target/linux/generic/backport-5.15/060-v6.0-01-tools-build-Add-feature-test-for-init_disassemble_in.patch b/target/linux/generic/backport-5.15/060-v6.0-01-tools-build-Add-feature-test-for-init_disassemble_in.patch
new file mode 100644
index 0000000000..f25e9ff917
--- /dev/null
+++ b/target/linux/generic/backport-5.15/060-v6.0-01-tools-build-Add-feature-test-for-init_disassemble_in.patch
@@ -0,0 +1,95 @@
+From 598ada195606eb0e577db0487dd59a2536f206ce Mon Sep 17 00:00:00 2001
+From: Andres Freund <andres at anarazel.de>
+Date: Sun, 31 Jul 2022 18:38:27 -0700
+Subject: [PATCH 1/5] tools build: Add feature test for init_disassemble_info
+ API changes
+
+binutils changed the signature of init_disassemble_info(), which now causes
+compilation failures for tools/{perf,bpf}, e.g. on debian unstable.
+
+Relevant binutils commit:
+
+ https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07
+
+This commit adds a feature test to detect the new signature. Subsequent
+commits will use it to fix the build failures.
+
+Signed-off-by: Andres Freund <andres at anarazel.de>
+Acked-by: Quentin Monnet <quentin at isovalent.com>
+Cc: Alexei Starovoitov <ast at kernel.org>
+Cc: Ben Hutchings <benh at debian.org>
+Cc: Jiri Olsa <jolsa at kernel.org>
+Cc: Quentin Monnet <quentin at isovalent.com>
+Cc: Sedat Dilek <sedat.dilek at gmail.com>
+Cc: bpf at vger.kernel.org
+Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de
+Link: https://lore.kernel.org/r/20220801013834.156015-2-andres@anarazel.de
+Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
+(cherry picked from commit cfd59ca91467056bb2c36907b2fa67b8e1af9952)
+---
+ tools/build/Makefile.feature | 1 +
+ tools/build/feature/Makefile | 4 ++++
+ tools/build/feature/test-all.c | 4 ++++
+ tools/build/feature/test-disassembler-init-styled.c | 13 +++++++++++++
+ 4 files changed, 22 insertions(+)
+ create mode 100644 tools/build/feature/test-disassembler-init-styled.c
+
+--- a/tools/build/Makefile.feature
++++ b/tools/build/Makefile.feature
+@@ -69,6 +69,7 @@ FEATURE_TESTS_BASIC :=
+ libaio \
+ libzstd \
+ disassembler-four-args \
++ disassembler-init-styled \
+ file-handle
+
+ # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
+--- a/tools/build/feature/Makefile
++++ b/tools/build/feature/Makefile
+@@ -18,6 +18,7 @@ FILES=
+ test-libbfd.bin \
+ test-libbfd-buildid.bin \
+ test-disassembler-four-args.bin \
++ test-disassembler-init-styled.bin \
+ test-reallocarray.bin \
+ test-libbfd-liberty.bin \
+ test-libbfd-liberty-z.bin \
+@@ -239,6 +240,9 @@ $(OUTPUT)test-libbfd-buildid.bin:
+ $(OUTPUT)test-disassembler-four-args.bin:
+ $(BUILD) -DPACKAGE='"perf"' -lbfd -lopcodes
+
++$(OUTPUT)test-disassembler-init-styled.bin:
++ $(BUILD) -DPACKAGE='"perf"' -lbfd -lopcodes
++
+ $(OUTPUT)test-reallocarray.bin:
+ $(BUILD)
+
+--- a/tools/build/feature/test-all.c
++++ b/tools/build/feature/test-all.c
+@@ -166,6 +166,10 @@
+ # include "test-disassembler-four-args.c"
+ #undef main
+
++#define main main_test_disassembler_init_styled
++# include "test-disassembler-init-styled.c"
++#undef main
++
+ #define main main_test_libzstd
+ # include "test-libzstd.c"
+ #undef main
+--- /dev/null
++++ b/tools/build/feature/test-disassembler-init-styled.c
+@@ -0,0 +1,13 @@
++// SPDX-License-Identifier: GPL-2.0
++#include <stdio.h>
++#include <dis-asm.h>
++
++int main(void)
++{
++ struct disassemble_info info;
++
++ init_disassemble_info(&info, stdout,
++ NULL, NULL);
++
++ return 0;
++}
diff --git a/target/linux/generic/backport-5.15/060-v6.0-02-tools-include-add-dis-asm-compat.h-to-handle-version.patch b/target/linux/generic/backport-5.15/060-v6.0-02-tools-include-add-dis-asm-compat.h-to-handle-version.patch
new file mode 100644
index 0000000000..8c6ba18718
--- /dev/null
+++ b/target/linux/generic/backport-5.15/060-v6.0-02-tools-include-add-dis-asm-compat.h-to-handle-version.patch
@@ -0,0 +1,96 @@
+From 08ec5766e5cf7b24fdebefb83b6f760bceeddf40 Mon Sep 17 00:00:00 2001
+From: Andres Freund <andres at anarazel.de>
+Date: Sun, 31 Jul 2022 18:38:29 -0700
+Subject: [PATCH 2/5] tools include: add dis-asm-compat.h to handle version
+ differences
+
+binutils changed the signature of init_disassemble_info(), which now causes
+compilation failures for tools/{perf,bpf}, e.g. on debian unstable.
+
+Relevant binutils commit:
+
+ https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07
+
+This commit introduces a wrapper for init_disassemble_info(), to avoid
+spreading #ifdef DISASM_INIT_STYLED to a bunch of places. Subsequent
+commits will use it to fix the build failures.
+
+It likely is worth adding a wrapper for disassember(), to avoid the already
+existing DISASM_FOUR_ARGS_SIGNATURE ifdefery.
+
+Signed-off-by: Andres Freund <andres at anarazel.de>
+Signed-off-by: Ben Hutchings <benh at debian.org>
+Acked-by: Quentin Monnet <quentin at isovalent.com>
+Cc: Alexei Starovoitov <ast at kernel.org>
+Cc: Ben Hutchings <benh at debian.org>
+Cc: Jiri Olsa <jolsa at kernel.org>
+Cc: Quentin Monnet <quentin at isovalent.com>
+Cc: Sedat Dilek <sedat.dilek at gmail.com>
+Cc: bpf at vger.kernel.org
+Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de
+Link: https://lore.kernel.org/r/20220801013834.156015-4-andres@anarazel.de
+Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
+(cherry picked from commit a45b3d6926231c3d024ea0de4f7bd967f83709ee)
+---
+ tools/include/tools/dis-asm-compat.h | 55 ++++++++++++++++++++++++++++
+ 1 file changed, 55 insertions(+)
+ create mode 100644 tools/include/tools/dis-asm-compat.h
+
+--- /dev/null
++++ b/tools/include/tools/dis-asm-compat.h
+@@ -0,0 +1,55 @@
++/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
++#ifndef _TOOLS_DIS_ASM_COMPAT_H
++#define _TOOLS_DIS_ASM_COMPAT_H
++
++#include <stdio.h>
++#include <dis-asm.h>
++
++/* define types for older binutils version, to centralize ifdef'ery a bit */
++#ifndef DISASM_INIT_STYLED
++enum disassembler_style {DISASSEMBLER_STYLE_NOT_EMPTY};
++typedef int (*fprintf_styled_ftype) (void *, enum disassembler_style, const char*, ...);
++#endif
++
++/*
++ * Trivial fprintf wrapper to be used as the fprintf_styled_func argument to
++ * init_disassemble_info_compat() when normal fprintf suffices.
++ */
++static inline int fprintf_styled(void *out,
++ enum disassembler_style style,
++ const char *fmt, ...)
++{
++ va_list args;
++ int r;
++
++ (void)style;
++
++ va_start(args, fmt);
++ r = vfprintf(out, fmt, args);
++ va_end(args);
++
++ return r;
++}
++
++/*
++ * Wrapper for init_disassemble_info() that hides version
++ * differences. Depending on binutils version and architecture either
++ * fprintf_func or fprintf_styled_func will be called.
++ */
++static inline void init_disassemble_info_compat(struct disassemble_info *info,
++ void *stream,
++ fprintf_ftype unstyled_func,
++ fprintf_styled_ftype styled_func)
++{
++#ifdef DISASM_INIT_STYLED
++ init_disassemble_info(info, stream,
++ unstyled_func,
++ styled_func);
++#else
++ (void)styled_func;
++ init_disassemble_info(info, stream,
++ unstyled_func);
++#endif
++}
++
++#endif /* _TOOLS_DIS_ASM_COMPAT_H */
diff --git a/target/linux/generic/backport-5.15/060-v6.0-03-tools-perf-Fix-compilation-error-with-new-binutils.patch b/target/linux/generic/backport-5.15/060-v6.0-03-tools-perf-Fix-compilation-error-with-new-binutils.patch
new file mode 100644
index 0000000000..27fb4011fc
--- /dev/null
+++ b/target/linux/generic/backport-5.15/060-v6.0-03-tools-perf-Fix-compilation-error-with-new-binutils.patch
@@ -0,0 +1,111 @@
+From 3bc373152a3a00742750dbbe974d541af78231e6 Mon Sep 17 00:00:00 2001
+From: Andres Freund <andres at anarazel.de>
+Date: Sun, 31 Jul 2022 18:38:30 -0700
+Subject: [PATCH 3/5] 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 at anarazel.de>
+Acked-by: Quentin Monnet <quentin at isovalent.com>
+Cc: Alexei Starovoitov <ast at kernel.org>
+Cc: Ben Hutchings <benh at debian.org>
+Cc: Jiri Olsa <jolsa at kernel.org>
+Cc: Sedat Dilek <sedat.dilek at gmail.com>
+Cc: bpf at 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 at redhat.com>
+(cherry picked from commit 83aa0120487e8bc3f231e72c460add783f71f17c)
+---
+ tools/perf/Makefile.config | 8 ++++++++
+ tools/perf/util/annotate.c | 7 ++++---
+ 2 files changed, 12 insertions(+), 3 deletions(-)
+
+--- a/tools/perf/Makefile.config
++++ b/tools/perf/Makefile.config
+@@ -296,6 +296,7 @@ FEATURE_CHECK_LDFLAGS-libpython := $(PYT
+ FEATURE_CHECK_LDFLAGS-libaio = -lrt
+
+ FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
++FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
+
+ CORE_CFLAGS += -fno-omit-frame-pointer
+ CORE_CFLAGS += -ggdb3
+@@ -872,13 +873,16 @@ ifndef NO_LIBBFD
+ ifeq ($(feature-libbfd-liberty), 1)
+ EXTLIBS += -lbfd -lopcodes -liberty
+ FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
++ FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
+ else
+ ifeq ($(feature-libbfd-liberty-z), 1)
+ EXTLIBS += -lbfd -lopcodes -liberty -lz
+ FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
++ FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
+ endif
+ endif
+ $(call feature_check,disassembler-four-args)
++ $(call feature_check,disassembler-init-styled)
+ endif
+
+ ifeq ($(feature-libbfd-buildid), 1)
+@@ -992,6 +996,10 @@ ifeq ($(feature-disassembler-four-args),
+ CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
+ endif
+
++ifeq ($(feature-disassembler-init-styled), 1)
++ CFLAGS += -DDISASM_INIT_STYLED
++endif
++
+ ifeq (${IS_64_BIT}, 1)
+ ifndef NO_PERF_READ_VDSO32
+ $(call feature_check,compile-32)
+--- a/tools/perf/util/annotate.c
++++ b/tools/perf/util/annotate.c
+@@ -1694,6 +1694,7 @@ 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)
+@@ -1736,9 +1737,9 @@ static int symbol__disassemble_bpf(struc
+ 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);
+
diff --git a/target/linux/generic/backport-5.15/060-v6.0-04-tools-bpf_jit_disasm-Fix-compilation-error-with-new-.patch b/target/linux/generic/backport-5.15/060-v6.0-04-tools-bpf_jit_disasm-Fix-compilation-error-with-new-.patch
new file mode 100644
index 0000000000..f8f5bcc6b8
--- /dev/null
+++ b/target/linux/generic/backport-5.15/060-v6.0-04-tools-bpf_jit_disasm-Fix-compilation-error-with-new-.patch
@@ -0,0 +1,102 @@
+From 042e7f11769adac0736d77d76262912b90724d7d Mon Sep 17 00:00:00 2001
+From: Andres Freund <andres at anarazel.de>
+Date: Sun, 31 Jul 2022 18:38:31 -0700
+Subject: [PATCH 4/5] tools bpf_jit_disasm: Fix compilation error with new
+ binutils
+
+binutils changed the signature of init_disassemble_info(), which now causes
+compilation to fail for tools/bpf/bpf_jit_disasm.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 bpf_jit_disasm can still disassemble bpf programs, both
+with the old and new dis-asm.h API. 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:
+
+ f4: mov %r14,%rsi
+ f7: mov %r15,%rdx
+ fa: mov $0x2a,%ecx
+ - ff: callq 0xffffffffea8c4988
+ + ff: call 0xffffffffea8c4988
+ 104: test %rax,%rax
+ 107: jge 0x0000000000000110
+ 109: xor %eax,%eax
+ - 10b: jmpq 0x0000000000000073
+ + 10b: jmp 0x0000000000000073
+ 110: cmp $0x16,%rax
+
+However, I had to use an older kernel to generate the bpf_jit_enabled =
+2 output, as that has been broken since 5.18 / 1022a5498f6f745c ("bpf,
+x86_64: Use bpf_jit_binary_pack_alloc").
+
+ https://lore.kernel.org/20220703030210.pmjft7qc2eajzi6c@alap3.anarazel.de
+
+Signed-off-by: Andres Freund <andres at anarazel.de>
+Acked-by: Quentin Monnet <quentin at isovalent.com>
+Cc: Alexei Starovoitov <ast at kernel.org>
+Cc: Ben Hutchings <benh at debian.org>
+Cc: Daniel Borkmann <daniel at iogearbox.net>
+Cc: Jiri Olsa <jolsa at kernel.org>
+Cc: Quentin Monnet <quentin at isovalent.com>
+Cc: Sedat Dilek <sedat.dilek at gmail.com>
+Cc: bpf at vger.kernel.org
+Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de
+Link: https://lore.kernel.org/r/20220801013834.156015-6-andres@anarazel.de
+Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
+(cherry picked from commit 96ed066054abf11c7d3e106e3011a51f3f1227a3)
+---
+ tools/bpf/Makefile | 5 ++++-
+ tools/bpf/bpf_jit_disasm.c | 5 ++++-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+--- a/tools/bpf/Makefile
++++ b/tools/bpf/Makefile
+@@ -34,7 +34,7 @@ else
+ endif
+
+ FEATURE_USER = .bpf
+-FEATURE_TESTS = libbfd disassembler-four-args
++FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled
+ FEATURE_DISPLAY = libbfd disassembler-four-args
+
+ check_feat := 1
+@@ -56,6 +56,9 @@ endif
+ ifeq ($(feature-disassembler-four-args), 1)
+ CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
+ endif
++ifeq ($(feature-disassembler-init-styled), 1)
++CFLAGS += -DDISASM_INIT_STYLED
++endif
+
+ $(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y
+ $(QUIET_BISON)$(YACC) -o $@ -d $<
+--- a/tools/bpf/bpf_jit_disasm.c
++++ b/tools/bpf/bpf_jit_disasm.c
+@@ -28,6 +28,7 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <limits.h>
++#include <tools/dis-asm-compat.h>
+
+ #define CMD_ACTION_SIZE_BUFFER 10
+ #define CMD_ACTION_READ_ALL 3
+@@ -64,7 +65,9 @@ static void get_asm_insns(uint8_t *image
+ assert(bfdf);
+ assert(bfd_check_format(bfdf, bfd_object));
+
+- init_disassemble_info(&info, stdout, (fprintf_ftype) fprintf);
++ init_disassemble_info_compat(&info, stdout,
++ (fprintf_ftype) fprintf,
++ fprintf_styled);
+ info.arch = bfd_get_arch(bfdf);
+ info.mach = bfd_get_mach(bfdf);
+ info.buffer = image;
diff --git a/target/linux/generic/backport-5.15/060-v6.0-05-tools-bpftool-Fix-compilation-error-with-new-binutil.patch b/target/linux/generic/backport-5.15/060-v6.0-05-tools-bpftool-Fix-compilation-error-with-new-binutil.patch
new file mode 100644
index 0000000000..66ac3d9409
--- /dev/null
+++ b/target/linux/generic/backport-5.15/060-v6.0-05-tools-bpftool-Fix-compilation-error-with-new-binutil.patch
@@ -0,0 +1,146 @@
+From a82db18ab34ba7f9d38319e8cc01ffe382e3e55e Mon Sep 17 00:00:00 2001
+From: Andres Freund <andres at anarazel.de>
+Date: Sun, 31 Jul 2022 18:38:33 -0700
+Subject: [PATCH 5/5] tools bpftool: Fix compilation error with new binutils
+
+binutils changed the signature of init_disassemble_info(), which now causes
+compilation to fail for tools/bpf/bpftool/jit_disasm.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 bpftool can still disassemble bpf programs, both with an
+old and new dis-asm.h API. There are no output changes for plain and json
+formats. 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:
+
+ 2f: pop %r14
+ 31: pop %r13
+ 33: pop %rbx
+ - 34: leaveq
+ - 35: retq
+ + 34: leave
+ + 35: ret
+
+Signed-off-by: Andres Freund <andres at anarazel.de>
+Acked-by: Quentin Monnet <quentin at isovalent.com>
+Cc: Alexei Starovoitov <ast at kernel.org>
+Cc: Ben Hutchings <benh at debian.org>
+Cc: Jiri Olsa <jolsa at kernel.org>
+Cc: Quentin Monnet <quentin at isovalent.com>
+Cc: Sedat Dilek <sedat.dilek at gmail.com>
+Cc: bpf at vger.kernel.org
+Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de
+Link: https://lore.kernel.org/r/20220801013834.156015-8-andres@anarazel.de
+Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
+(cherry picked from commit 600b7b26c07a070d0153daa76b3806c1e52c9e00)
+---
+ tools/bpf/bpftool/Makefile | 5 +++-
+ tools/bpf/bpftool/jit_disasm.c | 42 +++++++++++++++++++++++++++-------
+ 2 files changed, 38 insertions(+), 9 deletions(-)
+
+--- a/tools/bpf/bpftool/Makefile
++++ b/tools/bpf/bpftool/Makefile
+@@ -76,7 +76,7 @@ INSTALL ?= install
+ RM ?= rm -f
+
+ FEATURE_USER = .bpftool
+-FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \
++FEATURE_TESTS = libbfd disassembler-four-args disassembler-init-styled reallocarray zlib libcap \
+ clang-bpf-co-re
+ FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \
+ clang-bpf-co-re
+@@ -100,6 +100,9 @@ endif
+ ifeq ($(feature-disassembler-four-args), 1)
+ CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
+ endif
++ifeq ($(feature-disassembler-init-styled), 1)
++ CFLAGS += -DDISASM_INIT_STYLED
++endif
+
+ ifeq ($(feature-reallocarray), 0)
+ CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
+--- a/tools/bpf/bpftool/jit_disasm.c
++++ b/tools/bpf/bpftool/jit_disasm.c
+@@ -24,6 +24,7 @@
+ #include <sys/stat.h>
+ #include <limits.h>
+ #include <bpf/libbpf.h>
++#include <tools/dis-asm-compat.h>
+
+ #include "json_writer.h"
+ #include "main.h"
+@@ -39,15 +40,12 @@ static void get_exec_path(char *tpath, s
+ }
+
+ static int oper_count;
+-static int fprintf_json(void *out, const char *fmt, ...)
++static int printf_json(void *out, const char *fmt, va_list ap)
+ {
+- va_list ap;
+ char *s;
+ int err;
+
+- va_start(ap, fmt);
+ err = vasprintf(&s, fmt, ap);
+- va_end(ap);
+ if (err < 0)
+ return -1;
+
+@@ -73,6 +71,32 @@ static int fprintf_json(void *out, const
+ return 0;
+ }
+
++static int fprintf_json(void *out, const char *fmt, ...)
++{
++ va_list ap;
++ int r;
++
++ va_start(ap, fmt);
++ r = printf_json(out, fmt, ap);
++ va_end(ap);
++
++ return r;
++}
++
++static int fprintf_json_styled(void *out,
++ enum disassembler_style style __maybe_unused,
++ const char *fmt, ...)
++{
++ va_list ap;
++ int r;
++
++ va_start(ap, fmt);
++ r = printf_json(out, fmt, ap);
++ va_end(ap);
++
++ return r;
++}
++
+ void disasm_print_insn(unsigned char *image, ssize_t len, int opcodes,
+ const char *arch, const char *disassembler_options,
+ const struct btf *btf,
+@@ -99,11 +123,13 @@ void disasm_print_insn(unsigned char *im
+ assert(bfd_check_format(bfdf, bfd_object));
+
+ if (json_output)
+- init_disassemble_info(&info, stdout,
+- (fprintf_ftype) fprintf_json);
++ init_disassemble_info_compat(&info, stdout,
++ (fprintf_ftype) fprintf_json,
++ fprintf_json_styled);
+ else
+- init_disassemble_info(&info, stdout,
+- (fprintf_ftype) fprintf);
++ init_disassemble_info_compat(&info, stdout,
++ (fprintf_ftype) fprintf,
++ fprintf_styled);
+
+ /* Update architecture info for offload. */
+ if (arch) {
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