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| author | Alan Modra <amodra@gmail.com> | 2018-10-05 11:40:54 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-10-08 20:26:08 +1030 |
| commit | 64029e93683a266c38d19789e780f3748bd6a188 (patch) | |
| tree | 9984a3e982904e0132021869f097249ccdc99759 /include/bfdlink.h | |
| parent | 7358942661ccb0ea1e819fd2f5d47914cebf0aa2 (diff) | |
| download | gdb-64029e93683a266c38d19789e780f3748bd6a188.zip gdb-64029e93683a266c38d19789e780f3748bd6a188.tar.gz gdb-64029e93683a266c38d19789e780f3748bd6a188.tar.bz2 | |
Separate header PT_LOAD for -z separate-code
This patch, along with previous patches in the series, supports
putting the ELF file header and program headers in a PT_LOAD without
sections.
Logic governing whether headers a loaded has changed a little: The
primary reason to include headers is now the presence of
SIZEOF_HEADERS in a linker script. However, to support scripts that
may have reserved space for headers by hand, we continue to add
headers whenever the first section address is past the end of headers
modulo page size.
include/
* bfdlink.h (struct bfd_link_info): Add load_phdrs field.
bfd/
* elf-nacl.c (nacl_modify_segment_map): Cope with header PT_LOAD
lacking sections.
* elf.c (_bfd_elf_map_sections_to_segments): Assume file and
program headers are required when info->load_phdrs. Reorganize
code handling program headers. Generate a mapping without
sections just for file and program headers when -z separate-code
would indicate they should be on a different page to the first
section.
ld/
* ldexp.c (fold_name <SIZEOF_HEADERS>): Set link_info.load_phdrs.
* testsuite/ld-elf/loadaddr1.d: Pass -z noseparate-code.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-i386/vxworks2.sd: Adjust expected output.
* testsuite/ld-powerpc/vxworks2.sd: Likewise.
* testsuite/ld-elf/overlay.d: Remove spu xfail.
* testsuite/ld-spu/ovl.lnk: Don't use SIZEOF_HEADERS.
* testsuite/ld-tic6x/dsbt-be.ld: Likewise.
* testsuite/ld-tic6x/dsbt-inrange.ld: Likewise.
* testsuite/ld-tic6x/dsbt-overflow.ld: Likewise.
* testsuite/ld-tic6x/dsbt.ld: Likewise.
Diffstat (limited to 'include/bfdlink.h')
| -rw-r--r-- | include/bfdlink.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/bfdlink.h b/include/bfdlink.h index 2491081..630f734 100644 --- a/include/bfdlink.h +++ b/include/bfdlink.h @@ -475,6 +475,9 @@ struct bfd_link_info /* TRUE if the linker script contained an explicit PHDRS command. */ unsigned int user_phdrs: 1; + /* TRUE if program headers ought to be loaded. */ + unsigned int load_phdrs: 1; + /* TRUE if we should check relocations after all input files have been opened. */ unsigned int check_relocs_after_open_input: 1; |