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f2e33e8135
As a first step towards real little-endian code generation, this patch changes the PowerPC MC layer to actually generate little-endian object files. This involves passing the little-endian flag through the various layers, including down to createELFObjectWriter so we actually get basic little-endian ELF objects, emitting instructions in little-endian order, and handling fixups and relocations as appropriate for little-endian. The bulk of the patch is to update most test cases in test/MC/PowerPC to verify both big- and little-endian encodings. (The only test cases *not* updated are those that create actual big-endian ABI code, like the TLS tests.) Note that while the object files are now little-endian, the generated code itself is not yet updated, in particular, it still does not adhere to the ELFv2 ABI. llvm-svn: 204634
71 lines
4.7 KiB
ArmAsm
71 lines
4.7 KiB
ArmAsm
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# RUN: llvm-mc -triple powerpc64-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-BE %s
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# RUN: llvm-mc -triple powerpc64le-unknown-unknown --show-encoding %s | FileCheck -check-prefix=CHECK-LE %s
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# RUN: llvm-mc -triple powerpc64-unknown-unknown -filetype=obj %s | \
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# RUN: llvm-readobj -r | FileCheck %s -check-prefix=CHECK-BE-REL
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# RUN: llvm-mc -triple powerpc64le-unknown-unknown -filetype=obj %s | \
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# RUN: llvm-readobj -r | FileCheck %s -check-prefix=CHECK-LE-REL
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# GOT references must result in explicit relocations
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# even if the target symbol is local.
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target:
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# CHECK-BE: addi 4, 3, target@GOT # encoding: [0x38,0x83,A,A]
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# CHECK-LE: addi 4, 3, target@GOT # encoding: [A,A,0x83,0x38]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@GOT, kind: fixup_ppc_half16
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@GOT, kind: fixup_ppc_half16
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16 target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16 target 0x0
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addi 4, 3, target@got
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# CHECK-BE: ld 1, target@GOT(2) # encoding: [0xe8,0x22,A,0bAAAAAA00]
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# CHECK-LE: ld 1, target@GOT(2) # encoding: [0bAAAAAA00,A,0x22,0xe8]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@GOT, kind: fixup_ppc_half16ds
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@GOT, kind: fixup_ppc_half16ds
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_DS target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_DS target 0x0
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ld 1, target@got(2)
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# CHECK-BE: addis 3, 2, target@got@ha # encoding: [0x3c,0x62,A,A]
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# CHECK-LE: addis 3, 2, target@got@ha # encoding: [A,A,0x62,0x3c]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@got@ha, kind: fixup_ppc_half16
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@got@ha, kind: fixup_ppc_half16
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_HA target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_HA target 0x0
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addis 3, 2, target@got@ha
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# CHECK-BE: addi 4, 3, target@got@l # encoding: [0x38,0x83,A,A]
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# CHECK-LE: addi 4, 3, target@got@l # encoding: [A,A,0x83,0x38]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@got@l, kind: fixup_ppc_half16
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@got@l, kind: fixup_ppc_half16
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_LO target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_LO target 0x0
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addi 4, 3, target@got@l
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# CHECK-BE: addis 3, 2, target@got@h # encoding: [0x3c,0x62,A,A]
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# CHECK-LE: addis 3, 2, target@got@h # encoding: [A,A,0x62,0x3c]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@got@h, kind: fixup_ppc_half16
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@got@h, kind: fixup_ppc_half16
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_HI target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_HI target 0x0
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addis 3, 2, target@got@h
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# CHECK-BE: lwz 1, target@got@l(3) # encoding: [0x80,0x23,A,A]
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# CHECK-LE: lwz 1, target@got@l(3) # encoding: [A,A,0x23,0x80]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@got@l, kind: fixup_ppc_half16
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@got@l, kind: fixup_ppc_half16
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_LO target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_LO target 0x0
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lwz 1, target@got@l(3)
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# CHECK-BE: ld 1, target@got@l(3) # encoding: [0xe8,0x23,A,0bAAAAAA00]
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# CHECK-LE: ld 1, target@got@l(3) # encoding: [0bAAAAAA00,A,0x23,0xe8]
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# CHECK-BE-NEXT: # fixup A - offset: 2, value: target@got@l, kind: fixup_ppc_half16ds
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# CHECK-LE-NEXT: # fixup A - offset: 0, value: target@got@l, kind: fixup_ppc_half16ds
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# CHECK-BE-REL: 0x{{[0-9A-F]*[26AE]}} R_PPC64_GOT16_LO_DS target 0x0
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# CHECK-LE-REL: 0x{{[0-9A-F]*[048C]}} R_PPC64_GOT16_LO_DS target 0x0
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ld 1, target@got@l(3)
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