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TheRock/compiler/amd-llvm/lld/test/ELF/mips-tls-64-pic-local-variable.s
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

56 lines
1.8 KiB
ArmAsm

# REQUIRES: mips
# MIPS TLS variables that are marked as local by a version script were
# previously writing values to the GOT that caused runtime crashes. This
# was happending when linking jemalloc_tsd.c in FreeBSD libc. Check that
# we do the right thing now:
# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-freebsd %s -o %t.o
# RUN: echo "{ global: foo; local: *; };" > %t.script
# RUN: echo "SECTIONS { \
# RUN: . = 0x10000; .text : { *(.text) } \
# RUN: . = 0x20000; .got : { *(.got) } \
# RUN: }" > %t.script1
# RUN: ld.lld --version-script %t.script -script %t.script1 -shared %t.o -o %t.so
# RUN: llvm-objdump --section=.got -s %t.so | FileCheck %s --check-prefix GOT
# RUN: llvm-readobj -r %t.so | FileCheck %s -check-prefix RELOCS
# GOT: Contents of section .got:
# GOT-NEXT: 20000 00000000 00000000 80000000 00000000
# GOT-NEXT: 20010 00000000 00000000 00000000 00000000
# GOT-NEXT: 20020 ffffffff ffff8000
# RELOCS: Section ({{.+}}) .rel.dyn {
# RELOCS-NEXT: 0x20018 R_MIPS_TLS_DTPMOD64/R_MIPS_NONE/R_MIPS_NONE
# RELOCS-NEXT: }
# Test case generated using:
# clang -mcpu=mips4 -target mips64-unknown-freebsd12.0 \
# -fpic -O -G0 -EB -mabi=n64 -msoft-float -std=gnu99 -S %s -o %t.s
# from the following source:
#
# _Thread_local int x;
# int foo() { return x; }
#
.text
.globl foo
.p2align 3
.type foo,@function
.ent foo
foo:
lui $1, %hi(%neg(%gp_rel(foo)))
daddu $1, $1, $25
daddiu $gp, $1, %lo(%neg(%gp_rel(foo)))
ld $25, %call16(__tls_get_addr)($gp)
jalr $25
daddiu $4, $gp, %tlsgd(x)
.end foo
.type x,@object
.section .tbss,"awT",@nobits
.globl x
.p2align 2
x:
.4byte 0
.size x, 4