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authorMatheus Almeida <matheus.almeida@imgtec.com>2014-01-28 19:24:11 +0000
committerMatheus Almeida <matheus.almeida@imgtec.com>2014-01-28 19:24:11 +0000
commit4ed4bd0feec4dbf23282e6fbbb360c60b3a98052 (patch)
tree23f3efd72448ac70a2269661cf6fc50e3b65cd9e
parent1c71a20f32b6c6af85fb26d56b26effe71c710b9 (diff)
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[mips] Fix ELF header flags.
As opposed to GCC/GAS the default ABI for Mips64 is n64. Compatibility bit should be set if o32 ABI is used when targeting Mips64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200332 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp9
-rw-r--r--test/MC/Mips/elf_eflags.s24
2 files changed, 30 insertions, 3 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index 0dec292908..41b8ad6b96 100644
--- a/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -137,7 +137,14 @@ MipsTargetELFStreamer::MipsTargetELFStreamer(MCStreamer &S,
EFlags |= ELF::EF_MIPS_ARCH_32;
if (T.isArch64Bit()) {
- EFlags |= ELF::EF_MIPS_ABI2;
+ if (Features & Mips::FeatureN32)
+ EFlags |= ELF::EF_MIPS_ABI2;
+ else if (Features & Mips::FeatureO32) {
+ EFlags |= ELF::EF_MIPS_ABI_O32;
+ EFlags |= ELF::EF_MIPS_32BITMODE; /* Compatibility Mode */
+ }
+ // No need to set any bit for N64 which is the default ABI at the moment
+ // for 64-bit Mips architectures.
} else {
if (Features & Mips::FeatureMips64r2 || Features & Mips::FeatureMips64)
EFlags |= ELF::EF_MIPS_32BITMODE;
diff --git a/test/MC/Mips/elf_eflags.s b/test/MC/Mips/elf_eflags.s
index c8fb20330d..7a497785d2 100644
--- a/test/MC/Mips/elf_eflags.s
+++ b/test/MC/Mips/elf_eflags.s
@@ -13,8 +13,28 @@
# RUN: llvm-mc -filetype=obj -triple mipsel-unknown-linux -mcpu=mips32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPSEL-MIPS32 %s
# MIPSEL-MIPS32: Flags [ (0x50001000)
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=n32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N32 %s
+# MIPS64EL-MIPS64R2-N32: Flags [ (0x80000020)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 -mattr=n32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N32 %s
+# MIPS64EL-MIPS64-N32: Flags [ (0x60000020)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=n64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-N64 %s
+# MIPS64EL-MIPS64R2-N64: Flags [ (0x80000000)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=n64 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-N64 %s
+# MIPS64EL-MIPS64-N64: Flags [ (0x60000000)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 -mattr=o32 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2-O32 %s
+# MIPS64EL-MIPS64R2-O32: Flags [ (0x80001100)
+
+# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -mattr=o32 -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64-O32 %s
+# MIPS64EL-MIPS64-O32: Flags [ (0x60001100)
+
+# Default ABI for MIPS64 is N64 as opposed to GCC/GAS (N32)
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64r2 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2 %s
-# MIPS64EL-MIPS64R2: Flags [ (0x80000020)
+# MIPS64EL-MIPS64R2: Flags [ (0x80000000)
+# Default ABI for MIPS64 is N64 as opposed to GCC/GAS (N32)
# RUN: llvm-mc -filetype=obj -triple mips64el-unknown-linux -mcpu=mips64 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64 %s
-# MIPS64EL-MIPS64: Flags [ (0x60000020)
+# MIPS64EL-MIPS64: Flags [ (0x60000000)