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author | Alan Modra <amodra@gmail.com> | 2018-10-15 16:10:27 +1030 |
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committer | Alan Modra <amodra@gmail.com> | 2018-10-15 22:11:58 +1030 |
commit | bf2dd8d7cf4114b8a60dbb83b340f76b9b2474d1 (patch) | |
tree | 0ba71a654d503cc47523f3bf878d9e1d9c2c2d58 /gas/as.c | |
parent | dc86962bf15e7b8dfdcebc17d83b9b48be0bd9cb (diff) | |
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BFD_INIT_MAGIC
This patch performs a run-time test that a shared libbfd.so has been
compiled with the same size bfd_vma as that of apps using the library.
On a 32-bit host it is easily possible to have one libbfd.so compiled
to support 64-bit targets (or configured with --enable-64-bit-bfd)
while another only supports 32-bit targets. The two libraries will
have differently sized bfd_vma types, and if the wrong one is loaded
all sorts of weird behaviour might be seen.
bfd/
PR 23534
* init.c (BFD_INIT_MAGIC): Define.
(bfd_init): Return BFD_INIT_MAGIC.
bfd-in2.h: Regenerate.
binutils/
PR 23534
* addr2line.c (main): Exit with fatal error if bfd_init
returns an unexpected value.
* ar.c (main): Likewise.
* dlltool.c (identify_dll_for_implib): Likewise.
* nm.c (main): Likewise.
* objcopy.c (main): Likewise.
* objdump.c (main): Likewise.
* size.c (main): Likewise.
* strings.c (main): Likewise.
* windmc.c (main): Likewise.
* windres.c (main): Likewise.
gas/
PR 23534
* as.c (main): Exit with fatal error if bfd_init returns an
unexpected value.
ld/
PR 23534
* ldmain.c (main): Exit with fatal error if bfd_init returns
an unexpected value.
Diffstat (limited to 'gas/as.c')
-rw-r--r-- | gas/as.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -1239,7 +1239,8 @@ main (int argc, char ** argv) out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; hex_init (); - bfd_init (); + if (bfd_init () != BFD_INIT_MAGIC) + as_fatal (_("libbfd ABI mismatch")); bfd_set_error_program_name (myname); #ifdef USE_EMULATIONS |