forked from OSchip/llvm-project
175 lines
4.8 KiB
ArmAsm
175 lines
4.8 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %s -o %t
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# RUN: llvm-mc -filetype=obj -triple=aarch64-unknown-freebsd %p/Inputs/uabs_label.s -o %t2.o
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# RUN: ld.lld %t %t2.o -o %t2
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# RUN: llvm-objdump -d %t2 | FileCheck %s
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# REQUIRES: aarch64
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.section .R_AARCH64_ADR_PREL_LO21,"ax",@progbits
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.globl _start
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_start:
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adr x1,msg
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msg: .asciz "Hello, world\n"
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msgend:
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# CHECK: Disassembly of section .R_AARCH64_ADR_PREL_LO21:
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# CHECK: _start:
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# CHECK: 0: 21 00 00 10 adr x1, #4
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# CHECK: msg:
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# CHECK: 4:
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# #4 is the adr immediate value.
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.section .R_AARCH64_ADR_PREL_PG_H121,"ax",@progbits
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adrp x1,mystr
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mystr:
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.asciz "blah"
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.size mystr, 4
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# S = 0x20012, A = 0x4, P = 0x20012
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# PAGE(S + A) = 0x11000
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# PAGE(P) = 0x11000
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#
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# CHECK: Disassembly of section .R_AARCH64_ADR_PREL_PG_H121:
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# CHECK-NEXT: $x.2:
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# CHECK-NEXT: 20012: 01 00 00 90 adrp x1, #0
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.section .R_AARCH64_ADD_ABS_LO12_NC,"ax",@progbits
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add x0, x0, :lo12:.L.str
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.L.str:
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.asciz "blah"
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.size mystr, 4
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# S = 0x2001b, A = 0x4
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# R = (S + A) & 0xFFF = 0x1f
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# R << 10 = 0x7c00
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#
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# CHECK: Disassembly of section .R_AARCH64_ADD_ABS_LO12_NC:
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# CHECK-NEXT: $x.4:
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# CHECK-NEXT: 2001b: 00 7c 00 91 add x0, x0, #31
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.section .R_AARCH64_LDST64_ABS_LO12_NC,"ax",@progbits
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ldr x28, [x27, :lo12:foo]
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foo:
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.asciz "foo"
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.size mystr, 3
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# S = 0x20024, A = 0x4
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# R = ((S + A) & 0xFFF) << 7 = 0x00001400
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# 0x00001400 | 0xf940177c = 0xf940177c
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# CHECK: Disassembly of section .R_AARCH64_LDST64_ABS_LO12_NC:
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# CHECK-NEXT: $x.6:
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# CHECK-NEXT: 20024: 7c 17 40 f9 ldr x28, [x27, #40]
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.section .SUB,"ax",@progbits
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nop
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sub:
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nop
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# CHECK: Disassembly of section .SUB:
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# CHECK-NEXT: $x.8:
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# CHECK-NEXT: 2002c: 1f 20 03 d5 nop
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# CHECK: sub:
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# CHECK-NEXT: 20030: 1f 20 03 d5 nop
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.section .R_AARCH64_CALL26,"ax",@progbits
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call26:
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bl sub
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# S = 0x2002c, A = 0x4, P = 0x20034
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# R = S + A - P = -0x4 = 0xfffffffc
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# (R & 0x0ffffffc) >> 2 = 0x03ffffff
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# 0x94000000 | 0x03ffffff = 0x97ffffff
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# CHECK: Disassembly of section .R_AARCH64_CALL26:
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# CHECK-NEXT: call26:
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# CHECK-NEXT: 20034: ff ff ff 97 bl #-4
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.section .R_AARCH64_JUMP26,"ax",@progbits
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jump26:
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b sub
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# S = 0x2002c, A = 0x4, P = 0x20038
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# R = S + A - P = -0x8 = 0xfffffff8
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# (R & 0x0ffffffc) >> 2 = 0x03fffffe
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# 0x14000000 | 0x03fffffe = 0x17fffffe
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# CHECK: Disassembly of section .R_AARCH64_JUMP26:
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# CHECK-NEXT: jump26:
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# CHECK-NEXT: 20038: fe ff ff 17 b #-8
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.section .R_AARCH64_LDST32_ABS_LO12_NC,"ax",@progbits
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ldst32:
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ldr s4, [x5, :lo12:foo32]
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foo32:
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.asciz "foo"
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.size mystr, 3
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# S = 0x2003c, A = 0x4
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# R = ((S + A) & 0xFFC) << 8 = 0x00004000
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# 0x00004000 | 0xbd4000a4 = 0xbd4040a4
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# CHECK: Disassembly of section .R_AARCH64_LDST32_ABS_LO12_NC:
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# CHECK-NEXT: ldst32:
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# CHECK-NEXT: 2003c: a4 40 40 bd ldr s4, [x5, #64]
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.section .R_AARCH64_LDST8_ABS_LO12_NC,"ax",@progbits
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ldst8:
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ldrsb x11, [x13, :lo12:foo8]
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foo8:
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.asciz "foo"
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.size mystr, 3
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# S = 0x20044, A = 0x4
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# R = ((S + A) & 0xFFF) << 10 = 0x00012000
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# 0x00012000 | 0x398001ab = 0x398121ab
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# CHECK: Disassembly of section .R_AARCH64_LDST8_ABS_LO12_NC:
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# CHECK-NEXT: ldst8:
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# CHECK-NEXT: 20044: ab 21 81 39 ldrsb x11, [x13, #72]
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.section .R_AARCH64_LDST128_ABS_LO12_NC,"ax",@progbits
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ldst128:
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ldr q20, [x19, #:lo12:foo128]
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foo128:
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.asciz "foo"
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.size mystr, 3
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# S = 0x2004c, A = 0x4
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# R = ((S + A) & 0xFF8) << 6 = 0x00001400
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# 0x00001400 | 0x3dc00274 = 0x3dc01674
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# CHECK: Disassembly of section .R_AARCH64_LDST128_ABS_LO12_NC:
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# CHECK: ldst128:
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# CHECK: 2004c: 74 16 c0 3d ldr q20, [x19, #80]
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#foo128:
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# 20050: 66 6f 6f 00 .word
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.section .R_AARCH64_LDST16_ABS_LO12_NC,"ax",@progbits
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ldst16:
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ldr h17, [x19, :lo12:foo16]
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ldrh w1, [x19, :lo12:foo16]
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ldrh w2, [x19, :lo12:foo16 + 2]
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foo16:
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.asciz "foo"
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.size mystr, 4
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# S = 0x20054, A = 0x4
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# R = ((S + A) & 0x0FFC) << 9 = 0xb000
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# 0xb000 | 0x7d400271 = 0x7d40b271
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# CHECK: Disassembly of section .R_AARCH64_LDST16_ABS_LO12_NC:
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# CHECK-NEXT: ldst16:
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# CHECK-NEXT: 20054: 71 c2 40 7d ldr h17, [x19, #96]
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# CHECK-NEXT: 20058: 61 c2 40 79 ldrh w1, [x19, #96]
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# CHECK-NEXT: 2005c: 62 c6 40 79 ldrh w2, [x19, #98]
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.section .R_AARCH64_MOVW_UABS,"ax",@progbits
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movz1:
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movk x12, #:abs_g0_nc:uabs_label
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movk x13, #:abs_g1_nc:uabs_label
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movk x14, #:abs_g2_nc:uabs_label
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movz x15, #:abs_g3:uabs_label
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movk x16, #:abs_g3:uabs_label
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## 4222124650659840 == (0xF << 48)
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# CHECK: Disassembly of section .R_AARCH64_MOVW_UABS:
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# CHECK-NEXT: movz1:
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# CHECK-NEXT: 8c 01 80 f2 movk x12, #12
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# CHECK-NEXT: ad 01 a0 f2 movk x13, #13, lsl #16
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# CHECK-NEXT: ce 01 c0 f2 movk x14, #14, lsl #32
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# CHECK-NEXT: ef 01 e0 d2 mov x15, #4222124650659840
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# CHECK-NEXT: f0 01 e0 f2 movk x16, #15, lsl #48
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