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| author | Andrii Nakryiko <andriin@fb.com> | 2020-08-18 18:36:07 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-08-18 18:38:25 -0700 |
| commit | 22dd1ac91a77675238d10059c479ab6fa6160c60 (patch) | |
| tree | db9db9e5bf0e08e319156582f83936d0f74a95cd /tools/build/feature | |
| parent | 85367030a6c7ef3373347cf816c698995074f6f0 (diff) | |
| download | linux-22dd1ac91a77675238d10059c479ab6fa6160c60.tar.bz2 | |
tools: Remove feature-libelf-mmap feature detection
It's trivial to handle missing ELF_C_MMAP_READ support in libelf the way that
objtool has solved it in
("774bec3fddcc objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ").
So instead of having an entire feature detector for that, just do what objtool
does for perf and libbpf. And keep their Makefiles a bit simpler.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200819013607.3607269-5-andriin@fb.com
Diffstat (limited to 'tools/build/feature')
| -rw-r--r-- | tools/build/feature/Makefile | 4 | ||||
| -rw-r--r-- | tools/build/feature/test-all.c | 4 | ||||
| -rw-r--r-- | tools/build/feature/test-libelf-mmap.c | 9 |
3 files changed, 0 insertions, 17 deletions
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index d220fe952747..b2a2347c67ed 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -25,7 +25,6 @@ FILES= \ test-libelf-getphdrnum.bin \ test-libelf-gelf_getnote.bin \ test-libelf-getshdrstrndx.bin \ - test-libelf-mmap.bin \ test-libdebuginfod.bin \ test-libnuma.bin \ test-numa_num_possible_cpus.bin \ @@ -146,9 +145,6 @@ $(OUTPUT)test-dwarf.bin: $(OUTPUT)test-dwarf_getlocations.bin: $(BUILD) $(DWARFLIBS) -$(OUTPUT)test-libelf-mmap.bin: - $(BUILD) -lelf - $(OUTPUT)test-libelf-getphdrnum.bin: $(BUILD) -lelf diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index 5479e543b194..5284e6e9c756 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -30,10 +30,6 @@ # include "test-libelf.c" #undef main -#define main main_test_libelf_mmap -# include "test-libelf-mmap.c" -#undef main - #define main main_test_get_current_dir_name # include "test-get_current_dir_name.c" #undef main diff --git a/tools/build/feature/test-libelf-mmap.c b/tools/build/feature/test-libelf-mmap.c deleted file mode 100644 index 2c3ef81affe2..000000000000 --- a/tools/build/feature/test-libelf-mmap.c +++ /dev/null @@ -1,9 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <libelf.h> - -int main(void) -{ - Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0); - - return (long)elf; -} |