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| author | Alan Modra <amodra@gmail.com> | 2016-12-13 09:29:47 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2016-12-13 09:37:37 +1030 |
| commit | 6392030005291f7c783da2247b63ae31dc8352e0 (patch) | |
| tree | e969ae75f49bf5133ea7e5d69b9b36598efa2560 /bfd/elf32-rx.c | |
| parent | ea0ffd5be2dfd6ee696fc15294d7b2bf29f267a7 (diff) | |
| download | gdb-6392030005291f7c783da2247b63ae31dc8352e0.zip gdb-6392030005291f7c783da2247b63ae31dc8352e0.tar.gz gdb-6392030005291f7c783da2247b63ae31dc8352e0.tar.bz2 | |
Don't fudge p_vaddr when PHDR in segment
RX does horrible fudges to PT_LOAD p_vaddr, that affect the testsuite
and mean the target won't support dynamic objects. The latter
probably doesn't matter too much since RX is an embedded target, but
it's easy to stop some of the fudges in order to reduce special cases
for RX in the testsuite. The changes make sense in isolation too.
bfd/
* elf32-rx.c (elf32_rx_modify_program_headers): Don't adjust
segments that include the ELF file header or program headers.
ld/
* testsuite/ld-elf/flags1.d: Run for RX.
* testsuite/ld-scripts/phdrs.exp: Likewise.
* testsuite/ld-scripts/pr14962.d: Likewise.
* testsuite/ld-scripts/pr14962-2.d: Likewise.
Diffstat (limited to 'bfd/elf32-rx.c')
| -rw-r--r-- | bfd/elf32-rx.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/bfd/elf32-rx.c b/bfd/elf32-rx.c index f5377c0..72ea7fd 100644 --- a/bfd/elf32-rx.c +++ b/bfd/elf32-rx.c @@ -3200,9 +3200,11 @@ rx_elf_object_p (bfd * abfd) int i; unsigned int u; Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr; - int nphdrs = elf_elfheader (abfd)->e_phnum; + Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd); + int nphdrs = ehdr->e_phnum; sec_ptr bsec; static int saw_be = FALSE; + bfd_vma end_phdroff; /* We never want to automatically choose the non-swapping big-endian target. The user can only get that explicitly, such as with -I @@ -3227,6 +3229,17 @@ rx_elf_object_p (bfd * abfd) corresponds (based on matching file offsets) and use its VMA information to reconstruct the p_vaddr field we clobbered when we wrote it out. */ + /* If PT_LOAD headers include the ELF file header or program headers + then the PT_LOAD header does not start with some section contents. + Making adjustments based on the difference between sh_offset and + p_offset is nonsense in such cases. Exclude them. Note that + since standard linker scripts for RX do not use SIZEOF_HEADERS, + the linker won't normally create PT_LOAD segments covering the + headers so this is mainly for passing the ld testsuite. + FIXME. Why are we looking at non-PT_LOAD headers here? */ + end_phdroff = ehdr->e_ehsize; + if (ehdr->e_phoff != 0) + end_phdroff = ehdr->e_phoff + nphdrs * ehdr->e_phentsize; for (i=0; i<nphdrs; i++) { for (u=0; u<elf_tdata(abfd)->num_elf_sections; u++) @@ -3234,6 +3247,7 @@ rx_elf_object_p (bfd * abfd) Elf_Internal_Shdr *sec = elf_tdata(abfd)->elf_sect_ptr[u]; if (phdr[i].p_filesz + && phdr[i].p_offset >= end_phdroff && phdr[i].p_offset <= (bfd_vma) sec->sh_offset && sec->sh_size > 0 && sec->sh_type != SHT_NOBITS |