mirror of
https://github.com/c64scene-ar/llvm-6502.git
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bb804ee909
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211272 91177308-0d34-0410-b5e6-96231b3b80d8
168 lines
3.4 KiB
ArmAsm
168 lines
3.4 KiB
ArmAsm
// Test the bits of .eh_frame on mips that are already implemented correctly.
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// FIXME: This test would be a lot cleaner if llvm-objdump had the
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// --dwarf=frames option.
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// RUN: llvm-mc -filetype=obj %s -o %t.o -arch=mips
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// RUN: llvm-objdump -r -s %t.o | FileCheck --check-prefix=MIPS32 %s
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// RUN: llvm-mc -filetype=obj %s -o %t.o -arch=mipsel
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// RUN: llvm-objdump -r -s %t.o | FileCheck --check-prefix=MIPS32EL %s
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// RUN: llvm-mc -filetype=obj %s -o %t.o -arch=mips64
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// RUN: llvm-objdump -r -s %t.o | FileCheck --check-prefix=MIPS64 %s
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// RUN: llvm-mc -filetype=obj %s -o %t.o -arch=mips64el
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// RUN: llvm-objdump -r -s %t.o | FileCheck --check-prefix=MIPS64EL %s
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func:
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.cfi_startproc
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.cfi_endproc
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// MIPS32: RELOCATION RECORDS FOR [.rel.eh_frame]:
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// MIPS32-NEXT: R_MIPS_32
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// MIPS32: Contents of section .eh_frame:
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// MIPS32-NEXT: 0000
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// Length
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// MIPS32: 00000010
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// CIE ID
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// MIPS32: 00000000
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// Version
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// MIPS32: 03
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// Augmentation String
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// MIPS32: 7a5200
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// Code Alignment Factor
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// MIPS32: 01
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// Data Alignment Factor (-4)
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// MIPS32: 7c
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// Return Address Register
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// MIPS32: 1f
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// Augmentation Size
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// MIPS32: 01
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// MIPS32: .........zR..|..
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// MIPS32-NEXT: 0010
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// Augmentation (fde pointer encoding: DW_EH_PE_sdata4)
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// MIPS32: 0b
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// FIXME: The instructions are different from the ones produces by gas.
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// MIPS32EL: RELOCATION RECORDS FOR [.rel.eh_frame]:
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// MIPS32EL-NEXT: R_MIPS_32
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// MIPS32EL: Contents of section .eh_frame:
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// MIPS32EL-NEXT: 0000
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// Length
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// MIPS32EL: 10000000
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// CIE ID
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// MIPS32EL: 00000000
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// Version
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// MIPS32EL: 03
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// Augmentation String
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// MIPS32EL: 7a5200
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// Code Alignment Factor
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// MIPS32EL: 01
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// Data Alignment Factor (-4)
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// MIPS32EL: 7c
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// Return Address Register
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// MIPS32EL: 1f
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// Augmentation Size
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// MIPS32EL: 01
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// MIPS32EL: .........zR..|..
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// MIPS32EL-NEXT: 0010
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// Augmentation (fde pointer encoding: DW_EH_PE_sdata4)
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// MIPS32EL: 0b
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// FIXME: The instructions are different from the ones produces by gas.
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// MIPS64: RELOCATION RECORDS FOR [.rela.eh_frame]:
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// MIPS64-NEXT: R_MIPS_64
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// MIPS64: Contents of section .eh_frame:
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// MIPS64-NEXT: 0000
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// Length
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// MIPS64: 00000010
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// CIE ID
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// MIPS64: 00000000
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// Version
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// MIPS64: 03
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// Augmentation String
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// MIPS64: 7a5200
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// Code Alignment Factor
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// MIPS64: 01
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// Data Alignment Factor (-8). GAS uses -4. Should be ok as long as all
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// offsets we need are a multiple of 8.
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// MIPS64: 78
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// Return Address Register
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// MIPS64: 1f
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// Augmentation Size
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// MIPS64: 01
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// MIPS64: .........zR..x..
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// MIPS64-NEXT: 0010
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// Augmentation (fde pointer encoding: DW_EH_PE_sdata8)
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// MIPS64: 0c
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// FIXME: The instructions are different from the ones produces by gas.
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// MIPS64EL: RELOCATION RECORDS FOR [.rela.eh_frame]:
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// MIPS64EL-NEXT: R_MIPS_64
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// MIPS64EL: Contents of section .eh_frame:
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// MIPS64EL-NEXT: 0000
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// Length
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// MIPS64EL: 10000000
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// CIE ID
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// MIPS64EL: 00000000
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// Version
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// MIPS64EL: 03
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// Augmentation String
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// MIPS64EL: 7a5200
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// Code Alignment Factor
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// MIPS64EL: 01
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// Data Alignment Factor (-8). GAS uses -4. Should be ok as long as all
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// offsets we need are a multiple of 8.
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// MIPS64EL: 78
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// Return Address Register
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// MIPS64EL: 1f
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// Augmentation Size
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// MIPS64EL: 01
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// MIPS64EL: .........zR..x..
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// MIPS64EL-NEXT: 0010
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// Augmentation (fde pointer encoding: DW_EH_PE_sdata8)
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// MIPS64EL: 0c
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// FIXME: The instructions are different from the ones produces by gas.
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