[llvm] r202716 - [mips] support FK_Data_2 and FK_Data_8 to fix big-endian debug data
Ed Maste
emaste at freebsd.org
Mon Mar 3 06:27:49 PST 2014
Author: emaste
Date: Mon Mar 3 08:27:49 2014
New Revision: 202716
URL: http://llvm.org/viewvc/llvm-project?rev=202716&view=rev
Log:
[mips] support FK_Data_2 and FK_Data_8 to fix big-endian debug data
This fixes invalid lengths in .debug_aranges on big-endian mips64
(lengths appear to be left-shifted by 32 bits) and in .debug_loc.
Differential Revision: http://llvm-reviews.chandlerc.com/D2517
Added:
llvm/trunk/test/MC/Mips/mips64eb-fixups.s
Modified:
llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
Modified: llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp?rev=202716&r1=202715&r2=202716&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp Mon Mar 3 08:27:49 2014
@@ -38,6 +38,7 @@ static unsigned adjustFixupValue(const M
switch (Kind) {
default:
return 0;
+ case FK_Data_2:
case FK_GPRel_4:
case FK_Data_4:
case FK_Data_8:
@@ -140,12 +141,15 @@ public:
unsigned FullSize;
switch ((unsigned)Kind) {
+ case FK_Data_2:
case Mips::fixup_Mips_16:
FullSize = 2;
break;
+ case FK_Data_8:
case Mips::fixup_Mips_64:
FullSize = 8;
break;
+ case FK_Data_4:
default:
FullSize = 4;
break;
Added: llvm/trunk/test/MC/Mips/mips64eb-fixups.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Mips/mips64eb-fixups.s?rev=202716&view=auto
==============================================================================
--- llvm/trunk/test/MC/Mips/mips64eb-fixups.s (added)
+++ llvm/trunk/test/MC/Mips/mips64eb-fixups.s Mon Mar 3 08:27:49 2014
@@ -0,0 +1,43 @@
+# RUN: llvm-mc -filetype=obj -triple mips64eb-unknown-freebsd %s -o - | llvm-readobj -s -sd | FileCheck %s
+
+ .section .fixups,"", at progbits
+ .byte 0xff
+$diff0 = ($loc1)-($loc0)
+ .2byte ($diff0)
+
+ .byte 0xff
+$diff1 = ($loc2)-($loc0)
+ .4byte ($diff1)
+
+ .byte 0xff
+$diff2 = ($loc3)-($loc0)
+ .8byte ($diff2)
+ .byte 0xff
+
+$loc0:
+ .byte 0xee
+$loc1:
+ .byte 0xdd
+$loc2:
+ .byte 0xcc
+$loc3:
+
+# CHECK: AddressSize: 64bit
+# CHECK: Section {
+# CHECK: Name: .fixups (12)
+# CHECK-NEXT: Type: SHT_PROGBITS (0x1)
+# CHECK-NEXT: Flags [ (0x0)
+# CHECK-NEXT: ]
+# CHECK-NEXT: Address: 0x0
+# CHECK-NEXT: Offset: 0x40
+# CHECK-NEXT: Size: 21
+# CHECK-NEXT: Link: 0
+# CHECK-NEXT: Info: 0
+# CHECK-NEXT: AddressAlignment: 1
+# CHECK-NEXT: EntrySize: 0
+# CHECK-NEXT: SectionData (
+# CHECK-NEXT: 0000: FF0001FF 00000002 FF000000 00000000 |................|
+# CHECK-NEXT: 0010: 03FFEEDD CC |.....|
+# CHECK-NEXT: )
+# CHECK-NEXT: }
+# CHECK: ]
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