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| author | Alan Modra <amodra@gmail.com> | 2016-09-26 18:04:57 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2016-09-26 18:04:57 +0930 |
| commit | 005d79fd6101dae0aaf62a1b0cee399efcbd0e21 (patch) | |
| tree | 4035e4a8d7549d7b66bd522e41b9f238202b8131 /include | |
| parent | 153679d55f9e74c369ca67444bdbaad82855cc6e (diff) | |
| download | gdb-005d79fd6101dae0aaf62a1b0cee399efcbd0e21.zip gdb-005d79fd6101dae0aaf62a1b0cee399efcbd0e21.tar.gz gdb-005d79fd6101dae0aaf62a1b0cee399efcbd0e21.tar.bz2 | |
PowerPC .gnu.attributes
This patch extends Tag_GNU_Power_ABI_FP to cover long double ABIs,
makes the assembler warn about undefined tag values, and removes
similar warnings from the linker. I think it is better to not
warn in the linker about undefined tag values as future extensions to
the tags then won't result in likely bogus warnings. This is
consistent with the fact that an older linker won't warn on an
entirely new tag.
include/
* elf/ppc.h (Tag_GNU_Power_ABI_FP): Comment.
bfd/
* elf-bfd.h (_bfd_elf_ppc_merge_fp_attributes): Declare.
* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): New function.
(ppc_elf_merge_obj_attributes): Use it. Don't copy first file
attributes, merge them. Don't warn about undefined tag bits,
or copy unknown values to output.
* elf64-ppc.c (ppc64_elf_merge_private_bfd_data): Call
_bfd_elf_ppc_merge_fp_attributes.
binutils/
* readelf.c (display_power_gnu_attribute): Catch truncated section
for all powerpc attributes. Display long double ABI. Don't
capitalize words, except for names. Show known bits of tag values
when some unknown bits are present. Whitespace fixes.
gas/
* config/tc-ppc.c (ppc_elf_gnu_attribute): New function.
(md_pseudo_table <ELF>): Handle "gnu_attribute".
ld/
* testsuite/ld-powerpc/attr-gnu-4-4.s: Delete.
* testsuite/ld-powerpc/attr-gnu-4-14.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-24.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-34.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-41.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning.
* testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output.
* testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise.
* testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests.
Diffstat (limited to 'include')
| -rw-r--r-- | include/ChangeLog | 4 | ||||
| -rw-r--r-- | include/elf/ppc.h | 17 |
2 files changed, 16 insertions, 5 deletions
diff --git a/include/ChangeLog b/include/ChangeLog index 0c2fc11..28ab891 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2016-09-26 Alan Modra <amodra@gmail.com> + + * elf/ppc.h (Tag_GNU_Power_ABI_FP): Comment on new values. + 2016-09-21 Richard Sandiford <richard.sandiford@arm.com> * opcode/aarch64.h (aarch64_cond): Bump array size to 4. diff --git a/include/elf/ppc.h b/include/elf/ppc.h index f4a6bbd..5f94a34 100644 --- a/include/elf/ppc.h +++ b/include/elf/ppc.h @@ -219,11 +219,18 @@ END_RELOC_NUMBERS (R_PPC_max) enum { /* 0-3 are generic. */ - Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for - soft-float, 3 for single=precision - hard-float; 0 for not tagged or not - using any ABIs affected by the - differences. */ + + /* FP ABI, low 2 bits: + 1 for double precision hard-float, + 2 for soft-float, + 3 for single precision hard-float. + 0 for not tagged or not using any ABIs affected by the differences. + Next 2 bits: + 1 for ibm long double + 2 for 64-bit long double + 3 for IEEE long double. + 0 for not tagged or not using any ABIs affected by the differences. */ + Tag_GNU_Power_ABI_FP = 4, /* Value 1 for general purpose registers only, 2 for AltiVec registers, 3 for SPE registers; 0 for not tagged or not using any |