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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.

llvm-svn: 200332
This commit is contained in:
Matheus Almeida 2014-01-28 19:24:11 +00:00
parent 15bcb9dc42
commit 2e03f24301
2 changed files with 31 additions and 4 deletions
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9
llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
View File

@ -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;

26
llvm/test/MC/Mips/elf_eflags.s
View File

@ -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 %s -o -| llvm-readobj -h | FileCheck --check-prefix=MIPS64EL-MIPS64R2 %s
# MIPS64EL-MIPS64R2: Flags [ (0x80000020)
# 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 [ (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)