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More PowerPC64 ELFv2 --just-symbols fixes

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I don't know what I was thinking here to omit the save of r2.
Possibly I was looking at -msave-toc-indirect code at the time, where
r2 is saved in the function prologue.

	* elf64-ppc.c (ppc_build_one_stub <ppc_stub_plt_branch_r2off>):
	Don't omit saving of r2 for ELFv2.  Don't addi 2,2,0.
	(ppc_size_one_stub <ppc_stub_plt_branch_r2off>): Adjust to suit.
This commit is contained in:
Alan Modra
2013-12-03 17:48:31 +10:30
parent caf26be91a
commit 00f412ee52
2 changed files with 22 additions and 16 deletions
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6
bfd/ChangeLog
View File

@ -1,3 +1,9 @@
2013-12-03 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (ppc_build_one_stub <ppc_stub_plt_branch_r2off>):
Don't omit saving of r2 for ELFv2. Don't addi 2,2,0.
(ppc_size_one_stub <ppc_stub_plt_branch_r2off>): Adjust to suit.
2013-12-03 Alan Modra <amodra@gmail.com> 2013-12-03 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (ppc64_elf_link_just_syms): Remove .got check. * elf64-ppc.c (ppc64_elf_link_just_syms): Remove .got check.

28
bfd/elf64-ppc.c
View File

@ -10597,8 +10597,7 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
r[0].r_offset = loc - stub_entry->stub_sec->contents; r[0].r_offset = loc - stub_entry->stub_sec->contents;
if (bfd_big_endian (info->output_bfd)) if (bfd_big_endian (info->output_bfd))
r[0].r_offset += 2; r[0].r_offset += 2;
if (stub_entry->stub_type == ppc_stub_plt_branch_r2off if (stub_entry->stub_type == ppc_stub_plt_branch_r2off)
&& htab->opd_abi)
r[0].r_offset += 4; r[0].r_offset += 4;
r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS);
r[0].r_addend = dest; r[0].r_addend = dest;
@ -10611,8 +10610,7 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
} }
} }
if (stub_entry->stub_type != ppc_stub_plt_branch_r2off if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
|| !htab->opd_abi)
{ {
if (PPC_HA (off) != 0) if (PPC_HA (off) != 0)
{ {
@ -10631,7 +10629,7 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
{ {
bfd_vma r2off = get_r2off (info, stub_entry); bfd_vma r2off = get_r2off (info, stub_entry);
if (r2off == 0) if (r2off == 0 && htab->opd_abi)
{ {
htab->stub_error = TRUE; htab->stub_error = TRUE;
return FALSE; return FALSE;
@ -10639,29 +10637,30 @@ ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); bfd_put_32 (htab->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc);
loc += 4; loc += 4;
size = 20; size = 16;
if (PPC_HA (off) != 0) if (PPC_HA (off) != 0)
{ {
size += 4; size += 4;
bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc); bfd_put_32 (htab->stub_bfd, ADDIS_R11_R2 | PPC_HA (off), loc);
loc += 4; loc += 4;
bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc); bfd_put_32 (htab->stub_bfd, LD_R12_0R11 | PPC_LO (off), loc);
loc += 4;
} }
else else
{
bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); bfd_put_32 (htab->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc);
loc += 4;
}
if (PPC_HA (r2off) != 0) if (PPC_HA (r2off) != 0)
{ {
size += 4; size += 4;
bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
loc += 4; loc += 4;
bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
} }
if (PPC_LO (r2off) != 0)
{
size += 4;
loc += 4;
bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
} }
}
loc += 4; loc += 4;
bfd_put_32 (htab->stub_bfd, MTCTR_R12, loc); bfd_put_32 (htab->stub_bfd, MTCTR_R12, loc);
loc += 4; loc += 4;
@ -10954,8 +10953,7 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
stub_entry->stub_sec->flags |= SEC_RELOC; stub_entry->stub_sec->flags |= SEC_RELOC;
} }
if (stub_entry->stub_type != ppc_stub_plt_branch_r2off if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
|| !htab->opd_abi)
{ {
size = 12; size = 12;
if (PPC_HA (off) != 0) if (PPC_HA (off) != 0)
@ -10963,12 +10961,14 @@ ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
} }
else else
{ {
size = 20; size = 16;
if (PPC_HA (off) != 0) if (PPC_HA (off) != 0)
size += 4; size += 4;
if (PPC_HA (r2off) != 0) if (PPC_HA (r2off) != 0)
size += 4; size += 4;
if (PPC_LO (r2off) != 0)
size += 4;
} }
} }
else if (info->emitrelocations) else if (info->emitrelocations)