From 28d45e28be904a53fef4310b3d41e41b045885b0 Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Mon, 4 Jan 2016 23:13:10 +0000 Subject: [PATCH] MIPS/BFD: Fold the handling of input MIPS ABI flags together Fold the handling of input MIPS ABI flags in private BFD data merging together, moving the attribute check afterwards, and consequently making input vs output compatibility checks only start once all input ABI flag data has been gathered, checked for inconsistencies and put in order. Consequently also address the issue of input ABI flag inconsistencies being masked by a failing attribute check, which currently makes `_bfd_mips_elf_merge_private_bfd_data' exit prematurely and therefore prevent input ABI flag inconsistencies from being reported. Such inconsistencies need to be reported as they may be the very cause of an attribute check failure. bfd/ * elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Fold the handling of input MIPS ABI flags together. --- bfd/ChangeLog | 5 +++++ bfd/elfxx-mips.c | 30 ++++++++++++++---------------- 2 files changed, 19 insertions(+), 16 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 06dc3b3..cd9e1b1 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,10 @@ 2016-01-04 Maciej W. Rozycki + * elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Fold the + handling of input MIPS ABI flags together. + +2016-01-04 Maciej W. Rozycki + * elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Suppress attribute checks for null input. diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index e502f73..89d4409 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -15080,28 +15080,18 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) if (null_input_bfd) return TRUE; - /* Set up the FP ABI attribute from the abiflags if it is not already - set. */ + /* Populate abiflags using existing information. */ if (in_tdata->abiflags_valid) { obj_attribute *in_attr = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; + Elf_Internal_ABIFlags_v0 in_abiflags; + Elf_Internal_ABIFlags_v0 abiflags; + + /* Set up the FP ABI attribute from the abiflags if it is not already + set. */ if (in_attr[Tag_GNU_MIPS_ABI_FP].i == Val_GNU_MIPS_ABI_FP_ANY) in_attr[Tag_GNU_MIPS_ABI_FP].i = in_tdata->abiflags.fp_abi; - } - if (!mips_elf_merge_obj_attributes (ibfd, obfd)) - return FALSE; - - /* Populate abiflags using existing information. */ - if (!in_tdata->abiflags_valid) - { - infer_mips_abiflags (ibfd, &in_tdata->abiflags); - in_tdata->abiflags_valid = TRUE; - } - else - { - Elf_Internal_ABIFlags_v0 abiflags; - Elf_Internal_ABIFlags_v0 in_abiflags; infer_mips_abiflags (ibfd, &abiflags); in_abiflags = in_tdata->abiflags; @@ -15137,6 +15127,14 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) ".MIPS.abiflags (0x%lx)"), ibfd, (unsigned long) in_abiflags.flags2); } + else + { + infer_mips_abiflags (ibfd, &in_tdata->abiflags); + in_tdata->abiflags_valid = TRUE; + } + + if (!mips_elf_merge_obj_attributes (ibfd, obfd)) + return FALSE; if (!out_tdata->abiflags_valid) { -- 2.7.4