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| author | H.J. Lu <hjl.tools@gmail.com> | 2023-08-30 10:24:56 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2023-08-30 17:17:31 -0700 |
| commit | 68a2d9bf874643da970fe945a9c60c397f6882ad (patch) | |
| tree | 60eaddb169ea2d0e6e51cdcfc05b3e8200fefc8c /ld/ldelf.c | |
| parent | bac5753ca24bbbd601b6be93faa40e9458d8baa5 (diff) | |
| download | gdb-68a2d9bf874643da970fe945a9c60c397f6882ad.zip gdb-68a2d9bf874643da970fe945a9c60c397f6882ad.tar.gz gdb-68a2d9bf874643da970fe945a9c60c397f6882ad.tar.bz2 | |
elf: Don't merge sections with different SHF_LINK_ORDER
For relocatable link, don't merge 2 SHF_LINK_ORDER sections if output
sections of their linked to sections are different.
* ldelf.c (elf_orphan_compatible): Don't merge sections with
different SHF_LINK_ORDER.
* testsuite/ld-elf/pr30791a.d: New file.
* testsuite/ld-elf/pr30791a.s: Likewise.
* testsuite/ld-elf/pr30791b.d: Likewise.
* testsuite/ld-elf/pr30791b.s: Likewise.
* testsuite/ld-elf/pr30791c.s: Likewise.
* testsuite/ld-elf/pr30791d.s: Likewise.
Diffstat (limited to 'ld/ldelf.c')
| -rw-r--r-- | ld/ldelf.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -2080,9 +2080,14 @@ elf_orphan_compatible (asection *in, asection *out) return false; /* We can't merge with a member of an output section group or merge two sections with differing SHF_EXCLUDE or other processor and OS - specific flags when doing a relocatable link. */ + specific flags or with different SHF_LINK_ORDER when doing a + relocatable link. */ if (bfd_link_relocatable (&link_info) && (elf_next_in_group (out) != NULL + || ((elf_section_flags (in) & SHF_LINK_ORDER) != 0 + && (elf_section_flags (out) & SHF_LINK_ORDER) != 0 + && (elf_linked_to_section (in)->output_section + != elf_linked_to_section (out)->output_section)) || ((elf_section_flags (out) ^ elf_section_flags (in)) & (SHF_MASKPROC | SHF_MASKOS)) != 0)) return false; |