aarch64-relocs.s
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# REQUIRES: aarch64
# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %t
# RUN: echo '.globl zero; zero = 0' | llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd -o %t2.o
# RUN: ld.lld %t %t2.o -o %t2
# RUN: llvm-objdump -d %t2 | FileCheck %s
.section .R_AARCH64_ADR_PREL_LO21,"ax",@progbits
.globl _start
_start:
adr x1,msg
msg: .asciz "Hello, world\n"
msgend:
# CHECK: Disassembly of section .R_AARCH64_ADR_PREL_LO21:
# CHECK-EMPTY:
# CHECK: <_start>:
# CHECK: 0: 21 00 00 10 adr x1, #4
# CHECK: <msg>:
# CHECK: 4:
# #4 is the adr immediate value.
.section .R_AARCH64_ADR_PREL_PG_H121,"ax",@progbits
adrp x1,mystr
mystr:
.asciz "blah"
.size mystr, 4
# PAGE(S + A) - PAGE(P) = PAGE(210136) - PAGE(0x210132) = 0
#
# CHECK: Disassembly of section .R_AARCH64_ADR_PREL_PG_H121:
# CHECK-EMPTY:
# CHECK-NEXT: <$x.2>:
# CHECK-NEXT: 210132: 01 00 00 90 adrp x1, #0
.section .R_AARCH64_ADD_ABS_LO12_NC,"ax",@progbits
add x0, x0, :lo12:.L.str
.L.str:
.asciz "blah"
.size mystr, 4
# S = 0x21013b, A = 0x4
# R = (S + A) & 0xFFF = 319
#
# CHECK: Disassembly of section .R_AARCH64_ADD_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK-NEXT: <$x.4>:
# CHECK-NEXT: 21013b: 00 fc 04 91 add x0, x0, #319
.section .R_AARCH64_LDST64_ABS_LO12_NC,"ax",@progbits
ldr x28, [x27, :lo12:foo]
foo:
.asciz "foo"
.size mystr, 3
# S = 0x210144, A = 0x4
# R = ((S + A) & 0xFFF) << 7 = 0x0000a400
# 0x0000a400 | 0xf940177c = 0xf940a77c
# CHECK: Disassembly of section .R_AARCH64_LDST64_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK-NEXT: <$x.6>:
# CHECK-NEXT: 210144: 7c a7 40 f9 ldr x28, [x27, #328]
.section .SUB,"ax",@progbits
nop
sub:
nop
# CHECK: Disassembly of section .SUB:
# CHECK-EMPTY:
# CHECK-NEXT: <$x.8>:
# CHECK-NEXT: 21014c: 1f 20 03 d5 nop
# CHECK: <sub>:
# CHECK-NEXT: 210150: 1f 20 03 d5 nop
.section .R_AARCH64_CALL26,"ax",@progbits
call26:
bl sub
# S = 0x21014c, A = 0x4, P = 0x210154
# R = S + A - P = -0x4 = 0xfffffffc
# (R & 0x0ffffffc) >> 2 = 0x03ffffff
# 0x94000000 | 0x03ffffff = 0x97ffffff
# CHECK: Disassembly of section .R_AARCH64_CALL26:
# CHECK-EMPTY:
# CHECK-NEXT: <call26>:
# CHECK-NEXT: 210154: ff ff ff 97 bl 0x210150
.section .R_AARCH64_JUMP26,"ax",@progbits
jump26:
b sub
# S = 0x21014c, A = 0x4, P = 0x210158
# R = S + A - P = -0x8 = 0xfffffff8
# (R & 0x0ffffffc) >> 2 = 0x03fffffe
# 0x14000000 | 0x03fffffe = 0x17fffffe
# CHECK: Disassembly of section .R_AARCH64_JUMP26:
# CHECK-EMPTY:
# CHECK-NEXT: <jump26>:
# CHECK-NEXT: 210158: fe ff ff 17 b 0x210150
.section .R_AARCH64_LDST32_ABS_LO12_NC,"ax",@progbits
ldst32:
ldr s4, [x5, :lo12:foo32]
foo32:
.asciz "foo"
.size mystr, 3
# S = 0x21015c, A = 0x4
# R = ((S + A) & 0xFFC) << 8 = 0x00016000
# 0x00016000 | 0xbd4000a4 = 0xbd4160a4
# CHECK: Disassembly of section .R_AARCH64_LDST32_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK-NEXT: <ldst32>:
# CHECK-NEXT: 21015c: a4 60 41 bd ldr s4, [x5, #352]
.section .R_AARCH64_LDST8_ABS_LO12_NC,"ax",@progbits
ldst8:
ldrsb x11, [x13, :lo12:foo8]
foo8:
.asciz "foo"
.size mystr, 3
# S = 0x210164, A = 0x4
# R = ((S + A) & 0xFFF) << 10 = 0x0005a000
# 0x0005a000 | 0x398001ab = 0x3985a1ab
# CHECK: Disassembly of section .R_AARCH64_LDST8_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK-NEXT: <ldst8>:
# CHECK-NEXT: 210164: ab a1 85 39 ldrsb x11, [x13, #360]
.section .R_AARCH64_LDST128_ABS_LO12_NC,"ax",@progbits
ldst128:
ldr q20, [x19, #:lo12:foo128]
foo128:
.asciz "foo"
.size mystr, 3
# S = 0x21016c, A = 0x4
# R = ((S + A) & 0xFF8) << 6 = 0x00005c00
# 0x00005c00 | 0x3dc00274 = 0x3dc05e74
# CHECK: Disassembly of section .R_AARCH64_LDST128_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK: <ldst128>:
# CHECK: 21016c: 74 5e c0 3d ldr q20, [x19, #368]
#foo128:
# 210170: 66 6f 6f 00 .word
.section .R_AARCH64_LDST16_ABS_LO12_NC,"ax",@progbits
ldst16:
ldr h17, [x19, :lo12:foo16]
ldrh w1, [x19, :lo12:foo16]
ldrh w2, [x19, :lo12:foo16 + 2]
foo16:
.asciz "foo"
.size mystr, 4
# S = 0x210174, A = 0x4
# R = ((S + A) & 0x0FFC) << 9 = 0x2f000
# 0x2f000 | 0x7d400271 = 0x7d430271
# CHECK: Disassembly of section .R_AARCH64_LDST16_ABS_LO12_NC:
# CHECK-EMPTY:
# CHECK-NEXT: <ldst16>:
# CHECK-NEXT: 210174: 71 02 43 7d ldr h17, [x19, #384]
# CHECK-NEXT: 210178: 61 02 43 79 ldrh w1, [x19, #384]
# CHECK-NEXT: 21017c: 62 06 43 79 ldrh w2, [x19, #386]
.section .R_AARCH64_MOVW_UABS,"ax",@progbits
movz1:
movk x12, #:abs_g0:zero+0xC
movk x12, #:abs_g0_nc:zero+0xF000E000D000C
movk x13, #:abs_g1:zero+0xD000C
movk x13, #:abs_g1_nc:zero+0xF000E000D000C
movk x14, #:abs_g2:zero+0xE000D000C
movk x14, #:abs_g2_nc:zero+0xF000E000D000C
movz x15, #:abs_g3:zero+0xF000E000D000C
movk x16, #:abs_g3:zero+0xF000E000D000C
## 4222124650659840 == (0xF << 48)
# CHECK: Disassembly of section .R_AARCH64_MOVW_UABS:
# CHECK-EMPTY:
# CHECK-NEXT: <movz1>:
# CHECK-NEXT: 8c 01 80 f2 movk x12, #12
# CHECK-NEXT: 8c 01 80 f2 movk x12, #12
# CHECK-NEXT: ad 01 a0 f2 movk x13, #13, lsl #16
# CHECK-NEXT: ad 01 a0 f2 movk x13, #13, lsl #16
# CHECK-NEXT: ce 01 c0 f2 movk x14, #14, lsl #32
# CHECK-NEXT: ce 01 c0 f2 movk x14, #14, lsl #32
# CHECK-NEXT: ef 01 e0 d2 mov x15, #4222124650659840
# CHECK-NEXT: f0 01 e0 f2 movk x16, #15, lsl #48
.section .R_AARCH64_MOVW_SABS,"ax",@progbits
movz x1, #:abs_g0_s:zero+1
movz x1, #:abs_g0_s:zero-1
movz x2, #:abs_g1_s:zero+0x20000
movz x2, #:abs_g1_s:zero-0x20000
movz x3, #:abs_g2_s:zero+0x300000000
movz x3, #:abs_g2_s:zero-0x300000000
# CHECK: Disassembly of section .R_AARCH64_MOVW_SABS:
# CHECK-EMPTY:
# CHECK-NEXT: :
# CHECK-NEXT: 21 00 80 d2 mov x1, #1
# CHECK-NEXT: 01 00 80 92 mov x1, #-1
# CHECK-NEXT: 42 00 a0 d2 mov x2, #131072
## -65537 = 0xfffffffffffeffff
# CHECK-NEXT: 22 00 a0 92 mov x2, #-65537
## 12884901888 = 0x300000000
# CHECK-NEXT: 63 00 c0 d2 mov x3, #12884901888
## -8589934593 = #0xfffffffdffffffff
# CHECK-NEXT: 43 00 c0 92 mov x3, #-8589934593
.section .R_AARCH64_MOVW_PREL,"ax",@progbits
movz x1, #:prel_g0:.+1
movz x1, #:prel_g0_nc:.-1
movk x1, #:prel_g0:.+1
movk x1, #:prel_g0_nc:.-1
movz x2, #:prel_g1:.+0x20000
movz x2, #:prel_g1_nc:.-0x20000
movk x2, #:prel_g1:.+0x20000
movk x2, #:prel_g1_nc:.-0x20000
movz x3, #:prel_g2:.+0x300000000
movz x3, #:prel_g2_nc:.-0x300000000
movk x3, #:prel_g2:.+0x300000000
movk x3, #:prel_g2_nc:.-0x300000000
movz x3, #:prel_g2:.+0x300000000
movz x4, #:prel_g3:.+0x4000000000000
movz x4, #:prel_g3:.-0x4000000000000
movk x4, #:prel_g3:.+0x4000000000000
movk x4, #:prel_g3:.-0x4000000000000
# CHECK: Disassembly of section .R_AARCH64_MOVW_PREL:
# CHECK-EMPTY:
# CHECK-NEXT: :
# CHECK-NEXT: 2101bc: 21 00 80 d2 mov x1, #1
# CHECK-NEXT: 2101c0: 01 00 80 92 mov x1, #-1
# CHECK-NEXT: 2101c4: 21 00 80 f2 movk x1, #1
# CHECK-NEXT: 2101c8: e1 ff 9f f2 movk x1, #65535
# CHECK-NEXT: 2101cc: 42 00 a0 d2 mov x2, #131072
## -65537 = 0xfffffffffffeffff
# CHECK-NEXT: 2101d0: 22 00 a0 92 mov x2, #-65537
# CHECK-NEXT: 2101d4: 42 00 a0 f2 movk x2, #2, lsl #16
# CHECK-NEXT: 2101d8: c2 ff bf f2 movk x2, #65534, lsl #16
## 12884901888 = 0x300000000
# CHECK-NEXT: 2101dc: 63 00 c0 d2 mov x3, #12884901888
## -8589934593 = #0xfffffffdffffffff
# CHECK-NEXT: 2101e0: 43 00 c0 92 mov x3, #-8589934593
# CHECK-NEXT: 2101e4: 63 00 c0 f2 movk x3, #3, lsl #32
# CHECK-NEXT: 2101e8: a3 ff df f2 movk x3, #65533, lsl #32
# CHECK-NEXT: 2101ec: 63 00 c0 d2 mov x3, #12884901888
## 1125899906842624 = 0x4000000000000
# CHECK-NEXT: 2101f0: 84 00 e0 d2 mov x4, #1125899906842624
# CHECK-NEXT: 2101f4: 84 ff ff d2 mov x4, #-1125899906842624
# CHECK-NEXT: 2101f8: 84 00 e0 f2 movk x4, #4, lsl #48
# CHECK-NEXT: 2101fc: 84 ff ff f2 movk x4, #65532, lsl #48