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llvm-mirror/test/MC/PowerPC/ppc64-initial-cfa.s
Oliver Stannard 0f096f23f1 Emit DWARF3 call frame information when DWARF3+ debug info is requested
Currently, llvm always emits a DWARF CIE with a version of 1, even when emitting
DWARF 3 or 4, which both support CIE version 3. This patch makes it emit the
newer CIE version when we are emitting DWARF 3 or 4. This will not reduce
compatibility, as we already emit other DWARF3/4 features, and is worth doing as
the DWARF3 spec removed some ambiguities in the interpretation of call frame
information.

It also fixes a minor bug where the "return address" field of the CIE was
encoded as a ULEB128, which is only valid when the CIE version is 3. There are
no test changes for this, because (as far as I can tell) none of the platforms
that we test have a return address register with a DWARF register number >127.

llvm-svn: 211272
2014-06-19 15:39:33 +00:00

96 lines
3.1 KiB
ArmAsm

# RUN: llvm-mc -triple=powerpc64-unknown-linux-gnu -filetype=obj -relocation-model=static %s | \
# RUN: llvm-readobj -s -sr -sd | FileCheck %s -check-prefix=STATIC -check-prefix=STATIC-BE
# RUN: llvm-mc -triple=powerpc64-unknown-linux-gnu -filetype=obj -relocation-model=pic %s | \
# RUN: llvm-readobj -s -sr -sd | FileCheck %s -check-prefix=PIC -check-prefix=PIC-BE
# RUN: llvm-mc -triple=powerpc64le-unknown-linux-gnu -filetype=obj -relocation-model=static %s | \
# RUN: llvm-readobj -s -sr -sd | FileCheck %s -check-prefix=STATIC -check-prefix=STATIC-LE
# RUN: llvm-mc -triple=powerpc64le-unknown-linux-gnu -filetype=obj -relocation-model=pic %s | \
# RUN: llvm-readobj -s -sr -sd | FileCheck %s -check-prefix=PIC -check-prefix=PIC-LE
_proc:
.cfi_startproc
nop
.cfi_endproc
# STATIC: Section {
# STATIC: Name: .eh_frame
# STATIC-NEXT: Type: SHT_PROGBITS
# STATIC-NEXT: Flags [ (0x2)
# STATIC-NEXT: SHF_ALLOC
# STATIC-NEXT: ]
# STATIC-NEXT: Address:
# STATIC-NEXT: Offset:
# STATIC-NEXT: Size: 40
# STATIC-NEXT: Link: 0
# STATIC-NEXT: Info: 0
# STATIC-NEXT: AddressAlignment: 8
# STATIC-NEXT: EntrySize:
# STATIC-NEXT: Relocations [
# STATIC-NEXT: ]
# STATIC-NEXT: SectionData (
# STATIC-BE-NEXT: 0000: 00000010 00000000 037A5200 04784101
# STATIC-LE-NEXT: 0000: 10000000 00000000 037A5200 04784101
# STATIC-BE-NEXT: 0010: 1B0C0100 00000010 00000018 00000000
# STATIC-LE-NEXT: 0010: 1B0C0100 10000000 18000000 00000000
# STATIC-BE-NEXT: 0020: 00000004 00000000
# STATIC-LE-NEXT: 0020: 04000000 00000000
# STATIC-NEXT: )
# STATIC-NEXT: }
# STATIC: Section {
# STATIC: Name: .rela.eh_frame
# STATIC-NEXT: Type: SHT_RELA
# STATIC-NEXT: Flags [ (0x0)
# STATIC-NEXT: ]
# STATIC-NEXT: Address:
# STATIC-NEXT: Offset:
# STATIC-NEXT: Size: 24
# STATIC-NEXT: Link:
# STATIC-NEXT: Info:
# STATIC-NEXT: AddressAlignment: 8
# STATIC-NEXT: EntrySize: 24
# STATIC-NEXT: Relocations [
# STATIC-NEXT: 0x1C R_PPC64_REL32 .text 0x0
# STATIC-NEXT: ]
# PIC: Section {
# PIC: Name: .eh_frame
# PIC-NEXT: Type: SHT_PROGBITS
# PIC-NEXT: Flags [ (0x2)
# PIC-NEXT: SHF_ALLOC
# PIC-NEXT: ]
# PIC-NEXT: Address:
# PIC-NEXT: Offset:
# PIC-NEXT: Size: 40
# PIC-NEXT: Link: 0
# PIC-NEXT: Info: 0
# PIC-NEXT: AddressAlignment: 8
# PIC-NEXT: EntrySize: 0
# PIC-NEXT: Relocations [
# PIC-NEXT: ]
# PIC-NEXT: SectionData (
# PIC-BE-NEXT: 0000: 00000010 00000000 037A5200 04784101
# PIC-LE-NEXT: 0000: 10000000 00000000 037A5200 04784101
# PIC-BE-NEXT: 0010: 1B0C0100 00000010 00000018 00000000
# PIC-LE-NEXT: 0010: 1B0C0100 10000000 18000000 00000000
# PIC-BE-NEXT: 0020: 00000004 00000000
# PIC-LE-NEXT: 0020: 04000000 00000000
# PIC-NEXT: )
# PIC-NEXT: }
# PIC: Section {
# PIC: Name: .rela.eh_frame
# PIC-NEXT: Type: SHT_RELA
# PIC-NEXT: Flags [ (0x0)
# PIC-NEXT: ]
# PIC-NEXT: Address:
# PIC-NEXT: Offset:
# PIC-NEXT: Size: 24
# PIC-NEXT: Link:
# PIC-NEXT: Info:
# PIC-NEXT: AddressAlignment: 8
# PIC-NEXT: EntrySize: 24
# PIC-NEXT: Relocations [
# PIC-NEXT: 0x1C R_PPC64_REL32 .text 0x0
# PIC-NEXT: ]