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| author | Ulrich Drepper <drepper@redhat.com> | 2004-01-13 08:36:54 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-01-13 08:36:54 +0000 |
| commit | ed20b3d9cc5ce78fd71f32c47b2eb7a897c7a25d (patch) | |
| tree | c4ea660173f2c8cc138e8f0f1c64055a156c5036 /configure.in | |
| parent | 1c563add69af03557ba47a4a13790d821133478c (diff) | |
| download | glibc-ed20b3d9cc5ce78fd71f32c47b2eb7a897c7a25d.tar.gz glibc-ed20b3d9cc5ce78fd71f32c47b2eb7a897c7a25d.tar.xz glibc-ed20b3d9cc5ce78fd71f32c47b2eb7a897c7a25d.zip | |
Update.
2004-01-13 Ulrich Drepper <drepper@redhat.com> * Makeconfig: Define relro-LDFLAGS if have-z-relro==yes. Add it to LDFLAGS.so and LDFLAGS-rtld. (+link): Add relro-LDFLAGS. * Makeconfig (shlib.lds): Place __libc_subfreeres, __libc_atexit, and __libc_thread_subfreeres sections after .jcr section. * config.make.in: Add have-z-relro. * configure.in: Add check for -z relro option. * include/link.h (struct link_map): Add relro_addr and relro_size members. * elf/dl-load.c (_dl_map_object_from_fd): Recognize PT_GNU_RELRO. * elf/dl-reloc.c (_dl_relocate_object): At the end, make relro part of loaded segments read-only. * elf/elf.h: Define PT_GNU_RELRO. * elf/rtld.c (_dl_start): Recognize PT_GNU_RELRO of ld.so. (dl_main): Recognize PT_GNU_RELRO of the application. Call _dl_debug_initialize and initialize l_info[DT_DEBUG] before relocations.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 77e91e30c7..9d2b347e8f 100644 --- a/configure.in +++ b/configure.in @@ -1283,6 +1283,16 @@ EOF rm -f conftest*]) AC_SUBST(libc_cv_z_initfirst) + AC_CACHE_CHECK(for -z relro option, + libc_cv_z_relro, [dnl + if AC_TRY_COMMAND([${CC-cc} -v --help 2>&1|grep "z relro" 1>&AS_MESSAGE_LOG_FD]) + then + libc_cv_z_relro=yes + else + libc_cv_z_relro=no + fi]) + AC_SUBST(libc_cv_z_relro) + AC_CACHE_CHECK(for -Bgroup option, libc_cv_Bgroup, [dnl cat > conftest.c <<EOF |