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[BOLT] Fix r_aarch64_prelxx test

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The relocation value is calculated using the formula S + A - P,
the verification of the value is performed by inversely calculating the location address

Reviewed By: Amir

Differential Revision: https://reviews.llvm.org/D124270
This commit is contained in:
Alexey Moksyakov 2022-04-28 23:34:03 +03:00 committed by Vladislav Khmelevsky
parent b8d4fe0f0a
commit 61d54259ed
2 changed files with 60 additions and 37 deletions
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60
bolt/test/AArch64/r_aarch64_prelxx.s Normal file
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@ -0,0 +1,60 @@
// This test checks processing of R_AARCH64_PREL64/32/16 relocations
// S + A - P = Value
// S = P - A + Value
// mul(D1,0x100) == << 8
// mul(D2,0x10000) == << 16
// mul(D3,0x1000000) == << 24
// REQUIRES: system-linux
// RUN: %clang %cflags -nostartfiles -nostdlib %s -o %t.exe -mlittle-endian \
// RUN: -Wl,-q -Wl,-z,max-page-size=4
// RUN: llvm-readelf -Wa %t.exe | FileCheck %s -check-prefix=CHECKPREL
// CHECKPREL: R_AARCH64_PREL16 {{.*}} .dummy + 0
// CHECKPREL-NEXT: R_AARCH64_PREL32 {{.*}} _start + 4
// CHECKPREL-NEXT: R_AARCH64_PREL64 {{.*}} _start + 8
// RUN: llvm-bolt %t.exe -o %t.bolt
// RUN: llvm-objdump -D %t.bolt | FileCheck %s --check-prefix=CHECKPREL32
// CHECKPREL32: [[#%x,DATATABLEADDR:]] <datatable>:
// CHECKPREL32-NEXT: 00:
// CHECKPREL32-NEXT: 04: [[#%x,D0:]] [[#%x,D1:]] [[#%x,D2:]] [[#%x,D3:]]
// 4 is offset in datatable
// 8 is addend
// CHECKPREL32: [[#DATATABLEADDR + 4 - 8 + D0 + mul(D1,0x100) + mul(D2,0x10000) + mul(D3,0x1000000)]] <_start>:
// RUN: llvm-objdump -D %t.bolt | FileCheck %s --check-prefix=CHECKPREL64
// CHECKPREL64: [[#%x,DATATABLEADDR:]] <datatable>:
// CHECKPREL64-NEXT: 00:
// CHECKPREL64-NEXT: 04:
// CHECKPREL64-NEXT: 08: [[#%x,D0:]] [[#%x,D1:]] [[#%x,D2:]] [[#%x,D3:]]
// CHECKPREL64-NEXT: 0c: 00 00 00 00
// 8 is offset in datatable
// 12 is addend
// CHECKPREL64: [[#DATATABLEADDR + 8 - 12 + D0 + mul(D1,0x100) + mul(D2,0x10000) + mul(D3,0x1000000)]] <_start>:
.section .text
.align 4
.globl _start
.type _start, %function
_start:
adr x0, datatable
mov x0, #0
ret
.section .dummy, "da"
dummy:
.word 0
.data
.align 8
datatable:
.hword dummy - datatable
.align 2
.word _start - datatable
.xword _start - datatable

37
bolt/test/runtime/AArch64/r_aarch64_prelxx.s
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@ -1,37 +0,0 @@
// This test checks processing of R_AARCH64_PREL64/32/16 relocations
// RUN: %clang %cflags -nostartfiles -nostdlib %s -o %t.exe -Wl,-q \
// RUN: -Wl,-z,max-page-size=4
// RUN: llvm-readelf -Wa %t.exe | FileCheck %s -check-prefix=CHECKPREL
// CHECKPREL: R_AARCH64_PREL16 {{.*}} .dummy + 0
// CHECKPREL-NEXT: R_AARCH64_PREL32 {{.*}} _start + 4
// CHECKPREL-NEXT: R_AARCH64_PREL64 {{.*}} _start + 8
// RUN: llvm-bolt %t.exe -o %t.bolt
// RUN: llvm-readobj -S --section-data %t.bolt | FileCheck %s
// CHECK: Name: .data
// CHECK: SectionData (
// CHECK: 0000: FCFF0000 44FF3F00 44FF3F00 00000000
// CHECK: )
.text
.align 4
.globl _start
.type _start, %function
_start:
adr x0, datatable
mov x0, #0
ret
.section .dummy, "da"
dummy:
.word 0
.section .data
datatable:
.hword dummy - datatable
.align 2
.word _start - datatable
.xword _start - datatable