From bb29b84d8c2cc2e91f8dec7f7eb64f03470bd03c Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Thu, 21 Jun 2018 21:40:56 +0100 Subject: [PATCH] MIPS/BFD: Use enumeration constants for EI_ABIVERSION Define enumeration constants based on generated `libc-abis.h' from GNU libc, adding a MIPS_ prefix as these are port-specific. Use them to replace magic numbers stored in the EI_ABIVERSION field of the ELF file header. bfd/ * elfxx-mips.c (MIPS_LIBC_ABI_DEFAULT, MIPS_LIBC_ABI_MIPS_PLT) (MIPS_LIBC_ABI_UNIQUE, MIPS_LIBC_ABI_MIPS_O32_FP64) (MIPS_LIBC_ABI_MAX): New enumeration constants. (_bfd_mips_post_process_headers): Use them in place of magic numbers. --- bfd/ChangeLog | 8 ++++++++ bfd/elfxx-mips.c | 16 ++++++++++++++-- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index e962822..68db522 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,11 @@ +2018-06-21 Maciej W. Rozycki + + * elfxx-mips.c (MIPS_LIBC_ABI_DEFAULT, MIPS_LIBC_ABI_MIPS_PLT) + (MIPS_LIBC_ABI_UNIQUE, MIPS_LIBC_ABI_MIPS_O32_FP64) + (MIPS_LIBC_ABI_MAX): New enumeration constants. + (_bfd_mips_post_process_headers): Use them in place of magic + numbers. + 2018-06-21 Jim Wilson * elfnn-riscv.c (riscv_elf_finish_dynamic_symbol): Update comment. diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index 844750eb..f3a2d3b 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -16230,6 +16230,18 @@ bfd_mips_elf_get_abiflags (bfd *abfd) return tdata->abiflags_valid ? &tdata->abiflags : NULL; } +/* MIPS libc ABI versions, used with the EI_ABIVERSION ELF file header + field. Taken from `libc-abis.h' generated at GNU libc build time. + Using a MIPS_ prefix as other libc targets use different values. */ +enum +{ + MIPS_LIBC_ABI_DEFAULT = 0, + MIPS_LIBC_ABI_MIPS_PLT, + MIPS_LIBC_ABI_UNIQUE, + MIPS_LIBC_ABI_MIPS_O32_FP64, + MIPS_LIBC_ABI_MAX +}; + void _bfd_mips_post_process_headers (bfd *abfd, struct bfd_link_info *link_info) { @@ -16243,14 +16255,14 @@ _bfd_mips_post_process_headers (bfd *abfd, struct bfd_link_info *link_info) BFD_ASSERT (htab != NULL); if (htab->use_plts_and_copy_relocs && !htab->is_vxworks) - i_ehdrp->e_ident[EI_ABIVERSION] = 1; + i_ehdrp->e_ident[EI_ABIVERSION] = MIPS_LIBC_ABI_MIPS_PLT; } _bfd_elf_post_process_headers (abfd, link_info); if (mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64 || mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64A) - i_ehdrp->e_ident[EI_ABIVERSION] = 3; + i_ehdrp->e_ident[EI_ABIVERSION] = MIPS_LIBC_ABI_MIPS_O32_FP64; } int -- 2.7.4