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Subject[PATCH v2 1/5] tools build: add feature test for init_disassemble_info API changes
Date
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.

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Quentin Monnet <quentin@isovalent.com>
Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de
Signed-off-by: Andres Freund <andres@anarazel.de>
---
tools/build/Makefile.feature | 4 +++-
tools/build/feature/Makefile | 4 ++++
tools/build/feature/test-all.c | 4 ++++
tools/build/feature/test-disassembler-init-styled.c | 13 +++++++++++++
4 files changed, 24 insertions(+), 1 deletion(-)
create mode 100644 tools/build/feature/test-disassembler-init-styled.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 888a0421d43b..339686b99a6e 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -70,6 +70,7 @@ FEATURE_TESTS_BASIC := \
libaio \
libzstd \
disassembler-four-args \
+ disassembler-init-styled \
file-handle

# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
@@ -135,7 +136,8 @@ FEATURE_DISPLAY ?= \
bpf \
libaio \
libzstd \
- disassembler-four-args
+ disassembler-four-args \
+ disassembler-init-styled

# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.
# If in the future we need per-feature checks/flags for features not
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 7c2a17e23c30..c3059739318a 100644
--- 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 \
@@ -248,6 +249,9 @@ $(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)

diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 5ffafb967b6e..957c02c7b163 100644
--- 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
diff --git a/tools/build/feature/test-disassembler-init-styled.c b/tools/build/feature/test-disassembler-init-styled.c
new file mode 100644
index 000000000000..f1ce0ec3bee9
--- /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;
+}
--
2.37.0.3.g30cc8d0f14
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