Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 02/19] objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ | Date | Wed, 13 Jul 2016 23:20:38 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
Not all libelf implementations have this "Please, ELF_C_READ, but use mmap if possible" elf_begin() cmd, so provide a fallback to plain old ELF_C_READ.
Case in point: Alpine Linux 3.4.
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-1fctuknrawgoi5xqon4mu9dv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/objtool/elf.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c index e11f6b69cce6..0d7983ac63ef 100644 --- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -30,6 +30,13 @@ #include "elf.h" #include "warn.h" +/* + * Fallback for systems without this "read, mmaping if possible" cmd. + */ +#ifndef ELF_C_READ_MMAP +#define ELF_C_READ_MMAP ELF_C_READ +#endif + struct section *find_section_by_name(struct elf *elf, const char *name) { struct section *sec; -- 2.7.4
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