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authorAlan Modra <amodra@gmail.com>2015-03-11 17:53:50 +1030
committerAlan Modra <amodra@gmail.com>2015-03-11 18:15:31 +1030
commitf728387b9adccc88edcde44f357f869e33943c6d (patch)
tree532b22eb96d5fcaa998ffdc6300988049d030c39 /gas
parent1079403cc002be65ea1c318160efc18c19965389 (diff)
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Fix powerpc gas abort on invalid instruction fixups
* config/tc-ppc.c (md_assemble): Don't abort on 8 byte insn fixups. (md_apply_fix): Report an error on data-only fixups used with insns.
Diffstat (limited to 'gas')
-rw-r--r--gas/ChangeLog5
-rw-r--r--gas/config/tc-ppc.c26
2 files changed, 28 insertions, 3 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 577a1cd..d98b8cb 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-11 Alan Modra <amodra@gmail.com>
+
+ * config/tc-ppc.c (md_assemble): Don't abort on 8 byte insn fixups.
+ (md_apply_fix): Report an error on data-only fixups used with insns.
+
2015-03-10 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/tc-s390.c (md_gather_operands): Check for valid
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 6e96989..3f6de73 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -3431,9 +3431,6 @@ md_assemble (char *str)
size = bfd_get_reloc_size (reloc_howto);
offset = target_big_endian ? (insn_length - size) : 0;
- if (size < 1 || size > 4)
- abort ();
-
fixP = fix_new_exp (frag_now,
f - frag_now->fr_literal + offset,
size,
@@ -6774,6 +6771,29 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg)
break;
#endif
+ case BFD_RELOC_VTABLE_INHERIT:
+ case BFD_RELOC_VTABLE_ENTRY:
+ case BFD_RELOC_PPC_DTPMOD:
+ case BFD_RELOC_PPC_TPREL:
+ case BFD_RELOC_PPC_DTPREL:
+ case BFD_RELOC_PPC_COPY:
+ case BFD_RELOC_PPC_GLOB_DAT:
+ case BFD_RELOC_32_PLT_PCREL:
+ case BFD_RELOC_PPC_EMB_NADDR32:
+ case BFD_RELOC_PPC64_TOC:
+ case BFD_RELOC_CTOR:
+ case BFD_RELOC_32:
+ case BFD_RELOC_32_PCREL:
+ case BFD_RELOC_RVA:
+ case BFD_RELOC_64:
+ case BFD_RELOC_64_PCREL:
+ case BFD_RELOC_PPC64_ADDR64_LOCAL:
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("%s unsupported as instruction fixup"),
+ bfd_get_reloc_code_name (fixP->fx_r_type));
+ fixP->fx_done = 1;
+ return;
+
default:
break;
}