espressif/binutils-gdb
1
0
Fork 0
mirror of https://github.com/espressif/binutils-gdb.git synced 2025-06-20 01:50:24 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add .abiversion related support for ELFv2

Browse Source 
Defines bits in ELF e_flags to differentiate ELFv2 objects from ELFv2,
adds .abiversion directive to explicitly choose the ABI, and code to
check and automatically select ABI.

include/elf/
	* ppc64.h (EF_PPC64_ABI): Define.
bfd/
	* elf64-ppc.c (abiversion, set_abiversion): New functions.
	(ppc64_elf_get_synthetic_symtab): Handle ELFv2 objects without .opd.
	(struct ppc_link_hash_table): Add opd_abi.
	(ppc64_elf_check_relocs): Check no .opd with ELFv2.
	(ppc64_elf_merge_private_bfd_data): New function.
	(ppc64_elf_print_private_bfd_data): New function.
	(ppc64_elf_tls_setup): Set htab->opd_abi.
	(ppc64_elf_size_dynamic_sections): Don't emit OPD related dynamic
	tags for ELFv2.
	(ppc_build_one_stub): Use R_PPC64_IRELATIVE for ELFv2 ifunc.
	(ppc64_elf_finish_dynamic_symbol): Likewise
binutils/
	* readelf.c (get_machine_flags): Display ABI version for EM_PPC64.
gas/
	* config/tc-ppc.c: Include elf/ppc64.h.
	(ppc_abiversion): New variable.
	(md_pseudo_table): Add .abiversion.
	(ppc_elf_abiversion, ppc_elf_end): New functions.
	* config/tc-ppc.h (md_end): Define.
This commit is contained in:
Alan Modra
2013-10-29 15:06:09 +10:30
parent 71a39c98f8
commit ee67d69a3f
9 changed files with 213 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/elf/ChangeLog
View File

@ -1,3 +1,7 @@
2013-10-30 Alan Modra <amodra@gmail.com>
* ppc64.h (EF_PPC64_ABI): Define.
2013-10-30 Alan Modra <amodra@gmail.com>
* ppc64.h (R_PPC64_ADDR16_HIGH, R_PPC64_ADDR16_HIGHA,

7
include/elf/ppc64.h
View File

@ -173,6 +173,13 @@ END_RELOC_NUMBERS (R_PPC64_max)
(((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA) \
|| ((R) >= R_PPC64_TPREL16_HIGH && (R) <= R_PPC64_DTPREL16_HIGHA))
/* e_flags bits specifying ABI.
1 for original function descriptor using ABI,
2 for revised ABI without function descriptors,
0 for unspecified or not using any features affected by the differences. */
#define EF_PPC64_ABI 3
/* Specify the start of the .glink section. */
#define DT_PPC64_GLINK DT_LOPROC