109 lines
4 KiB
ArmAsm
109 lines
4 KiB
ArmAsm
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# REQUIRES: loongarch
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# RUN: echo '.globl bar, weak; .type bar,@function; .type weak,@function; bar: weak:' > %t1.s
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# RUN: llvm-mc --filetype=obj --triple=loongarch32 %t1.s -o %t1.32.o
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# RUN: ld.lld -shared %t1.32.o -soname=t1.32.so -o %t1.32.so
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# RUN: llvm-mc --filetype=obj --triple=loongarch32 %s -o %t.32.o
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# RUN: ld.lld %t.32.o %t1.32.so -z separate-code -o %t.32
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# RUN: llvm-readelf -S -s %t.32 | FileCheck --check-prefixes=SEC,NM %s
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# RUN: llvm-readobj -r %t.32 | FileCheck --check-prefix=RELOC32 %s
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# RUN: llvm-readelf -x .got.plt %t.32 | FileCheck --check-prefix=GOTPLT32 %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t.32 | FileCheck --check-prefixes=DIS,DIS32 %s
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# RUN: llvm-mc --filetype=obj --triple=loongarch64 %t1.s -o %t1.64.o
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# RUN: ld.lld -shared %t1.64.o -soname=t1.64.so -o %t1.64.so
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# RUN: llvm-mc --filetype=obj --triple=loongarch64 %s -o %t.64.o
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# RUN: ld.lld %t.64.o %t1.64.so -z separate-code -o %t.64
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# RUN: llvm-readelf -S -s %t.64 | FileCheck --check-prefixes=SEC,NM %s
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# RUN: llvm-readobj -r %t.64 | FileCheck --check-prefix=RELOC64 %s
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# RUN: llvm-readelf -x .got.plt %t.64 | FileCheck --check-prefix=GOTPLT64 %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t.64 | FileCheck --check-prefixes=DIS,DIS64 %s
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# SEC: .plt PROGBITS {{0*}}00020020
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## A canonical PLT has a non-zero st_value. bar and weak are called but their
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## addresses are not taken, so a canonical PLT is not necessary.
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# NM: {{0*}}00000000 0 FUNC GLOBAL DEFAULT UND bar
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# NM: {{0*}}00000000 0 FUNC WEAK DEFAULT UND weak
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## The .got.plt slots relocated by .rela.plt point to .plt
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## This is required by glibc.
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# RELOC32: .rela.plt {
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# RELOC32-NEXT: 0x40070 R_LARCH_JUMP_SLOT bar 0x0
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# RELOC32-NEXT: 0x40074 R_LARCH_JUMP_SLOT weak 0x0
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# RELOC32-NEXT: }
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# GOTPLT32: section '.got.plt'
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# GOTPLT32-NEXT: 0x00040068 00000000 00000000 20000200 20000200
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# RELOC64: .rela.plt {
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# RELOC64-NEXT: 0x400E0 R_LARCH_JUMP_SLOT bar 0x0
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# RELOC64-NEXT: 0x400E8 R_LARCH_JUMP_SLOT weak 0x0
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# RELOC64-NEXT: }
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# GOTPLT64: section '.got.plt'
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# GOTPLT64-NEXT: 0x000400d0 00000000 00000000 00000000 00000000
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# GOTPLT64-NEXT: 0x000400e0 20000200 00000000 20000200 00000000
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# DIS: <_start>:
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## Direct call
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## foo - . = 0x20010-0x20000 = 16
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# DIS-NEXT: 20000: bl 16
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## bar@plt - . = 0x20040-0x20004 = 60
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# DIS-NEXT: 20004: bl 60
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## bar@plt - . = 0x20040-0x20008 = 56
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# DIS-NEXT: 20008: bl 56
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## weak@plt - . = 0x20050-0x2000c = 68
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# DIS-NEXT: 2000c: bl 68
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# DIS: <foo>:
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# DIS-NEXT: 20010:
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# DIS: Disassembly of section .plt:
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# DIS: <.plt>:
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## 32-bit: .got.plt - .plt = 0x40068 - 0x20020 = 4096*32+72
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# DIS32-NEXT: pcaddu12i $t2, 32
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# DIS32-NEXT: sub.w $t1, $t1, $t3
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# DIS32-NEXT: ld.w $t3, $t2, 72
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# DIS32-NEXT: addi.w $t1, $t1, -44
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# DIS32-NEXT: addi.w $t0, $t2, 72
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# DIS32-NEXT: srli.w $t1, $t1, 2
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# DIS32-NEXT: ld.w $t0, $t0, 4
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# DIS32-NEXT: jr $t3
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## 64-bit: .got.plt - .plt = 0x400d0 - 0x20020 = 4096*32+176
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# DIS64-NEXT: pcaddu12i $t2, 32
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# DIS64-NEXT: sub.d $t1, $t1, $t3
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# DIS64-NEXT: ld.d $t3, $t2, 176
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# DIS64-NEXT: addi.d $t1, $t1, -44
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# DIS64-NEXT: addi.d $t0, $t2, 176
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# DIS64-NEXT: srli.d $t1, $t1, 1
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# DIS64-NEXT: ld.d $t0, $t0, 8
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# DIS64-NEXT: jr $t3
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## 32-bit: &.got.plt[bar]-. = 0x40070-0x20040 = 4096*32+48
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## 64-bit: &.got.plt[bar]-. = 0x400e0-0x20040 = 4096*32+160
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# DIS: 20040: pcaddu12i $t3, 32
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# DIS32-NEXT: ld.w $t3, $t3, 48
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# DIS64-NEXT: ld.d $t3, $t3, 160
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# DIS-NEXT: jirl $t1, $t3, 0
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# DIS-NEXT: nop
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## 32-bit: &.got.plt[weak]-. = 0x40074-0x20050 = 4096*32+36
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## 64-bit: &.got.plt[weak]-. = 0x400e8-0x20050 = 4096*32+152
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# DIS: 20050: pcaddu12i $t3, 32
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# DIS32-NEXT: ld.w $t3, $t3, 36
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# DIS64-NEXT: ld.d $t3, $t3, 152
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# DIS-NEXT: jirl $t1, $t3, 0
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# DIS-NEXT: nop
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.global _start, foo, bar
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.weak weak
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_start:
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bl foo
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bl bar
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bl %plt(bar)
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bl weak
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## foo is local and non-preemptible, no PLT is generated.
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foo:
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ret
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