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MIPS/BFD: Use local pointers to target data in private data merge

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Use local pointers to target data to reduce the amount of indirection
and improve the readability of `_bfd_mips_elf_merge_private_bfd_data'.

	bfd/
	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Use local
	pointers to target data.
This commit is contained in:
Maciej W. Rozycki 2016-01-04 22:49:59 +00:00
parent dcb1c79659
commit cf8502c131
2 changed files with 34 additions and 32 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2016-01-04 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Use local
pointers to target data.
2016-01-04 Maciej W. Rozycki <macro@imgtec.com>
* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Correct

61
bfd/elfxx-mips.c
View File

@ -15024,6 +15024,8 @@ mips_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
bfd_boolean
_bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
{
struct mips_elf_obj_tdata *out_tdata;
struct mips_elf_obj_tdata *in_tdata;
flagword old_flags;
flagword new_flags;
bfd_boolean ok;
@ -15043,6 +15045,9 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
if (!is_mips_elf (ibfd) || !is_mips_elf (obfd))
return TRUE;
in_tdata = mips_elf_tdata (ibfd);
out_tdata = mips_elf_tdata (obfd);
if (strcmp (bfd_get_target (ibfd), bfd_get_target (obfd)) != 0)
{
(*_bfd_error_handler)
@ -15053,12 +15058,11 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
/* Set up the FP ABI attribute from the abiflags if it is not already
set. */
if (mips_elf_tdata (ibfd)->abiflags_valid)
if (in_tdata->abiflags_valid)
{
obj_attribute *in_attr = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
if (in_attr[Tag_GNU_MIPS_ABI_FP].i == Val_GNU_MIPS_ABI_FP_ANY)
in_attr[Tag_GNU_MIPS_ABI_FP].i =
mips_elf_tdata (ibfd)->abiflags.fp_abi;
in_attr[Tag_GNU_MIPS_ABI_FP].i = in_tdata->abiflags.fp_abi;
}
if (!mips_elf_merge_obj_attributes (ibfd, obfd))
@ -15089,17 +15093,17 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
return TRUE;
/* Populate abiflags using existing information. */
if (!mips_elf_tdata (ibfd)->abiflags_valid)
if (!in_tdata->abiflags_valid)
{
infer_mips_abiflags (ibfd, &mips_elf_tdata (ibfd)->abiflags);
mips_elf_tdata (ibfd)->abiflags_valid = TRUE;
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 = mips_elf_tdata (ibfd)->abiflags;
in_abiflags = in_tdata->abiflags;
/* It is not possible to infer the correct ISA revision
for R3 or R5 so drop down to R2 for the checks. */
@ -15134,11 +15138,11 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
(unsigned long) in_abiflags.flags2);
}
if (!mips_elf_tdata (obfd)->abiflags_valid)
if (!out_tdata->abiflags_valid)
{
/* Copy input abiflags if output abiflags are not already valid. */
mips_elf_tdata (obfd)->abiflags = mips_elf_tdata (ibfd)->abiflags;
mips_elf_tdata (obfd)->abiflags_valid = TRUE;
out_tdata->abiflags = in_tdata->abiflags;
out_tdata->abiflags_valid = TRUE;
}
if (! elf_flags_init (obfd))
@ -15158,7 +15162,7 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
return FALSE;
/* Update the ABI flags isa_level, isa_rev and isa_ext fields. */
update_mips_abiflags_isa (obfd, &mips_elf_tdata (obfd)->abiflags);
update_mips_abiflags_isa (obfd, &out_tdata->abiflags);
}
return TRUE;
@ -15166,30 +15170,23 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
/* Update the output abiflags fp_abi using the computed fp_abi. */
out_attr = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
mips_elf_tdata (obfd)->abiflags.fp_abi = out_attr[Tag_GNU_MIPS_ABI_FP].i;
out_tdata->abiflags.fp_abi = out_attr[Tag_GNU_MIPS_ABI_FP].i;
#define max(a,b) ((a) > (b) ? (a) : (b))
/* Merge abiflags. */
mips_elf_tdata (obfd)->abiflags.isa_level
= max (mips_elf_tdata (obfd)->abiflags.isa_level,
mips_elf_tdata (ibfd)->abiflags.isa_level);
mips_elf_tdata (obfd)->abiflags.isa_rev
= max (mips_elf_tdata (obfd)->abiflags.isa_rev,
mips_elf_tdata (ibfd)->abiflags.isa_rev);
mips_elf_tdata (obfd)->abiflags.gpr_size
= max (mips_elf_tdata (obfd)->abiflags.gpr_size,
mips_elf_tdata (ibfd)->abiflags.gpr_size);
mips_elf_tdata (obfd)->abiflags.cpr1_size
= max (mips_elf_tdata (obfd)->abiflags.cpr1_size,
mips_elf_tdata (ibfd)->abiflags.cpr1_size);
mips_elf_tdata (obfd)->abiflags.cpr2_size
= max (mips_elf_tdata (obfd)->abiflags.cpr2_size,
mips_elf_tdata (ibfd)->abiflags.cpr2_size);
out_tdata->abiflags.isa_level = max (out_tdata->abiflags.isa_level,
in_tdata->abiflags.isa_level);
out_tdata->abiflags.isa_rev = max (out_tdata->abiflags.isa_rev,
in_tdata->abiflags.isa_rev);
out_tdata->abiflags.gpr_size = max (out_tdata->abiflags.gpr_size,
in_tdata->abiflags.gpr_size);
out_tdata->abiflags.cpr1_size = max (out_tdata->abiflags.cpr1_size,
in_tdata->abiflags.cpr1_size);
out_tdata->abiflags.cpr2_size = max (out_tdata->abiflags.cpr2_size,
in_tdata->abiflags.cpr2_size);
#undef max
mips_elf_tdata (obfd)->abiflags.ases
|= mips_elf_tdata (ibfd)->abiflags.ases;
mips_elf_tdata (obfd)->abiflags.flags1
|= mips_elf_tdata (ibfd)->abiflags.flags1;
out_tdata->abiflags.ases |= in_tdata->abiflags.ases;
out_tdata->abiflags.flags1 |= in_tdata->abiflags.flags1;
new_flags = elf_elfheader (ibfd)->e_flags;
elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER;
@ -15258,7 +15255,7 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
|= new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH | EF_MIPS_32BITMODE);
/* Update the ABI flags isa_level, isa_rev, isa_ext fields. */
update_mips_abiflags_isa (obfd, &mips_elf_tdata (obfd)->abiflags);
update_mips_abiflags_isa (obfd, &out_tdata->abiflags);
/* Copy across the ABI flags if OBFD doesn't use them
and if that was what caused us to treat IBFD as 32-bit. */