diff options
| author | Alan Modra <amodra@gmail.com> | 2021-06-11 14:06:47 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-06-11 14:06:47 +0930 |
| commit | f64b9b13ce4bb927f47a1fe0257c3794c6357c8c (patch) | |
| tree | 241f0a0b457807eb8e4ec179728e38899087ebe5 /bfd/elflink.c | |
| parent | 860cc54cd40334ec8709529f01e42fb4ac50b54f (diff) | |
| download | binutils-f64b9b13ce4bb927f47a1fe0257c3794c6357c8c.zip binutils-f64b9b13ce4bb927f47a1fe0257c3794c6357c8c.tar.gz binutils-f64b9b13ce4bb927f47a1fe0257c3794c6357c8c.tar.bz2 | |
PR27952, Disallow ET_DYN DF_1_PIE linker input
This patch adds a new elf_tdata flag, is_pie, set during the linker's
open_input_bfds processing. The flag is then used to reject attempts
to link a PIE as if it were a shared library.
bfd/
PR 27952
* elf-bfd.h (struct elf_obj_tdata): Add is_pie.
* elflink.c (elf_link_add_object_symbols): Set is_pie.
ld/
PR 27952
* ldelf.c (ldelf_after_open): Error on input PIEs too.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index 0e1871a..c9a6e78 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -4349,6 +4349,8 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) unsigned int tagv = dyn.d_un.d_val; audit = bfd_elf_string_from_elf_section (abfd, shlink, tagv); } + if (dyn.d_tag == DT_FLAGS_1) + elf_tdata (abfd)->is_pie = (dyn.d_un.d_val & DF_1_PIE) != 0; } free (dynbuf); |