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llvm-mirror/test/MC/AArch64/arm32-elf-relocs.s
Amanieu d'Antras bea54db865 [AArch64] Add support for the GNU ILP32 ABI 
Add the aarch64[_be]-*-gnu_ilp32 targets to support the GNU ILP32 ABI for AArch64.

The needed codegen changes were mostly already implemented in D61259, which added support for the watchOS ILP32 ABI. The main changes are:
- Wiring up the new target to enable ILP32 codegen and MC.
- ILP32 va_list support.
- ILP32 TLSDESC relocation support.

There was existing MC support for ELF ILP32 relocations from D25159 which could be enabled by passing "-target-abi ilp32" to llvm-mc. This was changed to check for "gnu_ilp32" in the target triple instead. This shouldn't cause any issues since the existing support was slightly broken: it was generating ELF64 objects instead of the ELF32 object files expected by the GNU ILP32 toolchain.

This target has been tested by running the full rustc testsuite on a big-endian ILP32 system based on the GCC ILP32 toolchain.

Reviewed By: kristof.beyls

Differential Revision: https://reviews.llvm.org/D94143
2021-01-20 13:34:47 +00:00

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// RUN: llvm-mc -triple=arm64-linux-gnu_ilp32 -o - < %s | FileCheck %s
// RUN: llvm-mc -triple=arm64-linux-gnu_ilp32 -show-encoding \
// RUN: -o - < %s | FileCheck --check-prefix=CHECK-ENCODING %s
// RUN: llvm-mc -triple=arm64-linux-gnu_ilp32 -filetype=obj < %s | \
// RUN: llvm-objdump --triple=arm64-linux-gnu - -r | \
// RUN: FileCheck %s --check-prefix=CHECK-OBJ-ILP32
add x0, x2, #:lo12:sym
// CHECK: add x0, x2, :lo12:sym
// CHECK-OBJ-ILP32: 0 R_AARCH64_P32_ADD_ABS_LO12_NC sym
add x5, x7, #:dtprel_lo12:sym
// CHECK: add x5, x7, :dtprel_lo12:sym
// CHECK-OBJ-ILP32: 4 R_AARCH64_P32_TLSLD_ADD_DTPREL_LO12 sym
add x9, x12, #:dtprel_lo12_nc:sym
// CHECK: add x9, x12, :dtprel_lo12_nc:sym
// CHECK-OBJ-ILP32: 8 R_AARCH64_P32_TLSLD_ADD_DTPREL_LO12_NC sym
add x20, x30, #:tprel_lo12:sym
// CHECK: add x20, x30, :tprel_lo12:sym
// CHECK-OBJ-ILP32: c R_AARCH64_P32_TLSLE_ADD_TPREL_LO12 sym
add x9, x12, #:tprel_lo12_nc:sym
// CHECK: add x9, x12, :tprel_lo12_nc:sym
// CHECK-OBJ-ILP32: 10 R_AARCH64_P32_TLSLE_ADD_TPREL_LO12_NC sym
add x5, x0, #:tlsdesc_lo12:sym
// CHECK: add x5, x0, :tlsdesc_lo12:sym
// CHECK-OBJ-ILP32: 14 R_AARCH64_P32_TLSDESC_ADD_LO12 sym
add x0, x2, #:lo12:sym+8
// CHECK: add x0, x2, :lo12:sym
// CHECK-OBJ-ILP32: 18 R_AARCH64_P32_ADD_ABS_LO12_NC sym+0x8
add x5, x7, #:dtprel_lo12:sym+1
// CHECK: add x5, x7, :dtprel_lo12:sym+1
// CHECK-OBJ-ILP32: 1c R_AARCH64_P32_TLSLD_ADD_DTPREL_LO12 sym+0x1
add x9, x12, #:dtprel_lo12_nc:sym+2
// CHECK: add x9, x12, :dtprel_lo12_nc:sym+2
// CHECK-OBJ-ILP32:20 R_AARCH64_P32_TLSLD_ADD_DTPREL_LO12_NC sym+0x2
add x20, x30, #:tprel_lo12:sym+12
// CHECK: add x20, x30, :tprel_lo12:sym+12
// CHECK-OBJ-ILP32: 24 R_AARCH64_P32_TLSLE_ADD_TPREL_LO12 sym+0xc
add x9, x12, #:tprel_lo12_nc:sym+54
// CHECK: add x9, x12, :tprel_lo12_nc:sym+54
// CHECK-OBJ-ILP32: 28 R_AARCH64_P32_TLSLE_ADD_TPREL_LO12_NC sym+0x36
add x5, x0, #:tlsdesc_lo12:sym+70
// CHECK: add x5, x0, :tlsdesc_lo12:sym+70
// CHECK-OBJ-ILP32: 2c R_AARCH64_P32_TLSDESC_ADD_LO12 sym+0x46
.hword sym + 4 - .
// CHECK-OBJ-ILP32: 30 R_AARCH64_P32_PREL16 sym+0x4
.word sym - . + 8
// CHECK-OBJ-ILP32: 32 R_AARCH64_P32_PREL32 sym+0x8
.hword sym
// CHECK-OBJ-ILP32: 36 R_AARCH64_P32_ABS16 sym
.word sym+1
// CHECK-OBJ-ILP32: 38 R_AARCH64_P32_ABS32 sym+0x1
adrp x0, sym
// CHECK: adrp x0, sym
// CHECK-OBJ-ILP32: 3c R_AARCH64_P32_ADR_PREL_PG_HI21 sym
adrp x15, :got:sym
// CHECK: adrp x15, :got:sym
// CHECK-OBJ-ILP32: 40 R_AARCH64_P32_ADR_GOT_PAGE sym
adrp x29, :gottprel:sym
// CHECK: adrp x29, :gottprel:sym
// CHECK-OBJ-ILP32: 44 R_AARCH64_P32_TLSIE_ADR_GOTTPREL_PAGE21 sym
adrp x2, :tlsdesc:sym
// CHECK: adrp x2, :tlsdesc:sym
// CHECK-OBJ-ILP32: 48 R_AARCH64_P32_TLSDESC_ADR_PAGE21 sym
// LLVM is not competent enough to do this relocation because the
// page boundary could occur anywhere after linking. A relocation
// is needed.
adrp x3, trickQuestion
.global trickQuestion
trickQuestion:
// CHECK: adrp x3, trickQuestion
// CHECK-OBJ-ILP32: 4c R_AARCH64_P32_ADR_PREL_PG_HI21 trickQuestion
ldrb w2, [x3, :lo12:sym]
ldrsb w5, [x7, #:lo12:sym]
ldrsb x11, [x13, :lo12:sym]
ldr b17, [x19, #:lo12:sym]
// CHECK: ldrb w2, [x3, :lo12:sym]
// CHECK: ldrsb w5, [x7, :lo12:sym]
// CHECK: ldrsb x11, [x13, :lo12:sym]
// CHECK: ldr b17, [x19, :lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST8_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST8_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST8_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST8_ABS_LO12_NC sym
ldrb w23, [x29, #:dtprel_lo12_nc:sym]
ldrsb w23, [x19, #:dtprel_lo12:sym]
ldrsb x17, [x13, :dtprel_lo12_nc:sym]
ldr b11, [x7, #:dtprel_lo12:sym]
// CHECK: ldrb w23, [x29, :dtprel_lo12_nc:sym]
// CHECK: ldrsb w23, [x19, :dtprel_lo12:sym]
// CHECK: ldrsb x17, [x13, :dtprel_lo12_nc:sym]
// CHECK: ldr b11, [x7, :dtprel_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST8_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST8_DTPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST8_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST8_DTPREL_LO12 sym
ldrb w1, [x2, :tprel_lo12:sym]
ldrsb w3, [x4, #:tprel_lo12_nc:sym]
ldrsb x5, [x6, :tprel_lo12:sym]
ldr b7, [x8, #:tprel_lo12_nc:sym]
// CHECK: ldrb w1, [x2, :tprel_lo12:sym]
// CHECK: ldrsb w3, [x4, :tprel_lo12_nc:sym]
// CHECK: ldrsb x5, [x6, :tprel_lo12:sym]
// CHECK: ldr b7, [x8, :tprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST8_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST8_TPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST8_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST8_TPREL_LO12_NC sym
ldrh w2, [x3, #:lo12:sym]
ldrsh w5, [x7, :lo12:sym]
ldrsh x11, [x13, #:lo12:sym]
ldr h17, [x19, :lo12:sym]
// CHECK: ldrh w2, [x3, :lo12:sym]
// CHECK: ldrsh w5, [x7, :lo12:sym]
// CHECK: ldrsh x11, [x13, :lo12:sym]
// CHECK: ldr h17, [x19, :lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST16_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST16_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST16_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST16_ABS_LO12_NC sym
ldrh w23, [x29, #:dtprel_lo12_nc:sym]
ldrsh w23, [x19, :dtprel_lo12:sym]
ldrsh x17, [x13, :dtprel_lo12_nc:sym]
ldr h11, [x7, #:dtprel_lo12:sym]
// CHECK: ldrh w23, [x29, :dtprel_lo12_nc:sym]
// CHECK: ldrsh w23, [x19, :dtprel_lo12:sym]
// CHECK: ldrsh x17, [x13, :dtprel_lo12_nc:sym]
// CHECK: ldr h11, [x7, :dtprel_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST16_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST16_DTPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST16_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST16_DTPREL_LO12 sym
ldrh w1, [x2, :tprel_lo12:sym]
ldrsh w3, [x4, #:tprel_lo12_nc:sym]
ldrsh x5, [x6, :tprel_lo12:sym]
ldr h7, [x8, #:tprel_lo12_nc:sym]
// CHECK: ldrh w1, [x2, :tprel_lo12:sym]
// CHECK: ldrsh w3, [x4, :tprel_lo12_nc:sym]
// CHECK: ldrsh x5, [x6, :tprel_lo12:sym]
// CHECK: ldr h7, [x8, :tprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST16_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST16_TPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST16_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST16_TPREL_LO12_NC sym
ldr w1, [x2, #:lo12:sym]
ldrsw x3, [x4, #:lo12:sym]
ldr s4, [x5, :lo12:sym]
// CHECK: ldr w1, [x2, :lo12:sym]
// CHECK: ldrsw x3, [x4, :lo12:sym]
// CHECK: ldr s4, [x5, :lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST32_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST32_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST32_ABS_LO12_NC sym
ldr w1, [x2, :dtprel_lo12:sym]
ldrsw x3, [x4, #:dtprel_lo12_nc:sym]
ldr s4, [x5, #:dtprel_lo12_nc:sym]
// CHECK: ldr w1, [x2, :dtprel_lo12:sym]
// CHECK: ldrsw x3, [x4, :dtprel_lo12_nc:sym]
// CHECK: ldr s4, [x5, :dtprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST32_DTPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST32_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST32_DTPREL_LO12_NC sym
ldr w1, [x2, #:tprel_lo12:sym]
ldrsw x3, [x4, :tprel_lo12_nc:sym]
ldr s4, [x5, :tprel_lo12_nc:sym]
// CHECK: ldr w1, [x2, :tprel_lo12:sym]
// CHECK: ldrsw x3, [x4, :tprel_lo12_nc:sym]
// CHECK: ldr s4, [x5, :tprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST32_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST32_TPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST32_TPREL_LO12_NC sym
ldr x28, [x27, :lo12:sym]
ldr d26, [x25, :lo12:sym]
// CHECK: ldr x28, [x27, :lo12:sym]
// CHECK: ldr d26, [x25, :lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST64_ABS_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST64_ABS_LO12_NC sym
ldr w24, [x23, :got_lo12:sym]
ldr s22, [x21, :got_lo12:sym]
// CHECK: ldr w24, [x23, :got_lo12:sym]
// CHECK: ldr s22, [x21, :got_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LD32_GOT_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_LD32_GOT_LO12_NC sym
ldr x24, [x23, :dtprel_lo12_nc:sym]
ldr d22, [x21, :dtprel_lo12:sym]
// CHECK: ldr x24, [x23, :dtprel_lo12_nc:sym]
// CHECK: ldr d22, [x21, :dtprel_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST64_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST64_DTPREL_LO12 sym
ldr q24, [x23, :dtprel_lo12_nc:sym]
ldr q22, [x21, :dtprel_lo12:sym]
// CHECK: ldr q24, [x23, :dtprel_lo12_nc:sym]
// CHECK: ldr q22, [x21, :dtprel_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST128_DTPREL_LO12_NC sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLD_LDST128_DTPREL_LO12 sym
ldr x24, [x23, :tprel_lo12:sym]
ldr d22, [x21, :tprel_lo12_nc:sym]
// CHECK: ldr x24, [x23, :tprel_lo12:sym]
// CHECK: ldr d22, [x21, :tprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST64_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST64_TPREL_LO12_NC sym
ldr q24, [x23, :tprel_lo12:sym]
ldr q22, [x21, :tprel_lo12_nc:sym]
// CHECK: ldr q24, [x23, :tprel_lo12:sym]
// CHECK: ldr q22, [x21, :tprel_lo12_nc:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST128_TPREL_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSLE_LDST128_TPREL_LO12_NC sym
ldr w24, [x23, :gottprel_lo12:sym]
ldr s22, [x21, :gottprel_lo12:sym]
ldr w24, [x23, :tlsdesc_lo12:sym]
ldr s22, [x21, :tlsdesc_lo12:sym]
// CHECK: ldr w24, [x23, :tlsdesc_lo12:sym]
// CHECK: ldr s22, [x21, :tlsdesc_lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSDESC_LD32_LO12 sym
// CHECK-OBJ-ILP32: R_AARCH64_P32_TLSDESC_LD32_LO12 sym
ldr q20, [x19, #:lo12:sym]
// CHECK: ldr q20, [x19, :lo12:sym]
// CHECK-OBJ-ILP32: R_AARCH64_P32_LDST128_ABS_LO12_NC sym
// check encoding here, since encoding test doesn't belong with TLS encoding
// tests, as it isn't a TLS relocation.
// CHECK-ENCODING: ldr q20, [x19, :lo12:sym] // encoding: [0x74,0bAAAAAA10,0b11AAAAAA,0x3d]
// CHECK-ENCODING-NEXT: 0, value: :lo12:sym, kind: fixup_aarch64_ldst_imm12_scale16
// Since relocated instructions print without a '#', that syntax should
// certainly be accepted when assembling.
add x3, x5, :lo12:imm
// CHECK: add x3, x5, :lo12:imm
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