1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
| # REQUIRES: mips
# Check PLT entries generation in case of using N32 ABI.
# RUN: echo "SECTIONS { \
# RUN: . = 0x10000; .text ALIGN(0x10000) : { *(.text) } \
# RUN: . = 0x30000; .data : { *(.data) } \
# RUN: }" > %t.script
# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
# RUN: -target-abi n32 %s -o %t1.o
# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
# RUN: -target-abi n32 %S/Inputs/mips-dynamic.s -o %t2.o
# RUN: ld.lld %t2.o -shared -soname=t.so -o %t.so
# RUN: ld.lld %t1.o %t.so -script %t.script -o %t.exe
# RUN: llvm-objdump -d --no-show-raw-insn %t.exe \
# RUN: | FileCheck %s --check-prefixes=DEFAULT,CHECK
# RUN: ld.lld %t2.o -shared -soname=t.so -o %t.so -z hazardplt
# RUN: ld.lld %t1.o %t.so -script %t.script -o %t.exe -z hazardplt
# RUN: llvm-objdump -d --no-show-raw-insn %t.exe \
# RUN: | FileCheck %s --check-prefixes=HAZARDPLT,CHECK
# CHECK: Disassembly of section .text:
# CHECK-EMPTY:
# CHECK-NEXT: __start:
# CHECK-NEXT: 20000: jal 131120
# ^-- 0x20030 gotplt[foo0]
# CHECK-NEXT: 20004: nop
#
# CHECK-EMPTY:
# CHECK-NEXT: Disassembly of section .plt:
# CHECK-EMPTY:
# CHECK-NEXT: .plt:
# CHECK-NEXT: 20010: lui $14, 3
# CHECK-NEXT: 20014: lw $25, 4($14)
# CHECK-NEXT: 20018: addiu $14, $14, 4
# CHECK-NEXT: 2001c: subu $24, $24, $14
# CHECK-NEXT: 20020: move $15, $ra
# CHECK-NEXT: 20024: srl $24, $24, 2
# DEFAULT: 20028: jalr $25
# HAZARDPLT: 20028: jalr.hb $25
# CHECK-NEXT: 2002c: addiu $24, $24, -2
# CHECK-NEXT: 20030: lui $15, 3
# CHECK-NEXT: 20034: lw $25, 12($15)
# DEFAULT: 20038: jr $25
# HAZARDPLT: 20038: jr.hb $25
# CHECK-NEXT: 2003c: addiu $24, $15, 12
.text
.global __start
__start:
jal foo0 # R_MIPS_26 against 'foo0' from DSO
|