Commit-ID: 774bec3fddcccb0b36f319c6d6e8148dc5e8c937 Gitweb: http://git.kernel.org/tip/774bec3fddcccb0b36f319c6d6e8148dc5e8c937 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Wed, 13 Jul 2016 15:28:51 -0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 13 Jul 2016 15:38:50 -0300
objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ 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.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Josh Poimboeuf <jpoim...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-1fctuknrawgoi5xqon4mu...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@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 e11f6b6..0d7983a 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;
