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Add test loongarch-relax-tlsdesc.s
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‎lld/test/ELF/loongarch-relax-tlsdesc.s

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# REQUIRES: loongarch
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax a.s -o a.64.o
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# RUN: llvm-mc -filetype=obj -triple=loongarch64 -mattr=+relax c.s -o c.64.o
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# RUN: ld.lld -shared -soname=c.64.so c.64.o -o c.64.so
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# RUN: llvm-mc -filetype=obj -triple=loongarch32 -mattr=+relax --defsym ELF32=1 a.s -o a.32.o
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# RUN: llvm-mc -filetype=obj -triple=loongarch32 -mattr=+relax --defsym ELF32=1 c.s -o c.32.o
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# RUN: ld.lld -shared -soname=c.32.so c.32.o -o c.32.so
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## Test the TLSDESC relaxation. Also check --emit-relocs.
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# RUN: ld.lld -shared --emit-relocs -z now a.64.o c.64.o -o a.64.so
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# RUN: llvm-readobj -r -x .got a.64.so | FileCheck --check-prefix=GD64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -dr a.64.so | FileCheck %s --check-prefix=GD64
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## FIXME: The transition frome TLSDESC to IE/LE has not yet been implemented.
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## Keep the dynamic relocations and hand them over to dynamic linker.
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# RUN: ld.lld -e 0 -z now --emit-relocs a.64.o c.64.o -o a.64.le
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# RUN: llvm-readobj -r -x .got a.64.le | FileCheck --check-prefix=LE64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -d a.64.le | FileCheck %s --check-prefix=LE64
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# RUN: ld.lld -e 0 -z now --emit-relocs a.64.o c.64.so -o a.64.ie
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# RUN: llvm-readobj -r -x .got a.64.ie | FileCheck --check-prefix=IE64-RELA %s
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# RUN: llvm-objdump --no-show-raw-insn -d a.64.ie | FileCheck %s --check-prefix=IE64
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## 32-bit code is mostly the same. We only test a few variants.
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# RUN: ld.lld -shared -z now a.32.o c.32.o -o rel.32.so -z rel
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# RUN: llvm-readobj -r -x .got rel.32.so | FileCheck --check-prefix=GD32-REL %s
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# GD64-RELA: .rela.dyn {
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# GD64-RELA-NEXT: 0x20448 R_LARCH_TLS_DESC64 - 0x7FF
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# GD64-RELA-NEXT: 0x20418 R_LARCH_TLS_DESC64 a 0x0
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# GD64-RELA-NEXT: 0x20428 R_LARCH_TLS_DESC64 c 0x0
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# GD64-RELA-NEXT: 0x20438 R_LARCH_TLS_DESC64 d 0x0
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# GD64-RELA-NEXT: }
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# GD64-RELA: Hex dump of section '.got':
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# GD64-RELA-NEXT: 0x00020418 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020428 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020438 00000000 00000000 00000000 00000000 .
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# GD64-RELA-NEXT: 0x00020448 00000000 00000000 00000000 00000000 .
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## &.got[a]-. = 0x20418 - 0x10318 = 16448<<2
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# GD64: 10318: pcaddi $a0, 16448
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a1, $a0, $tp
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## &.got[b]-. = 0x20418+48 - 0x10328 = 16456<<2
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# GD64: 10328: pcaddi $a0, 16456
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x20418+16 - 0x10338 = 16444<<2
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# GD64: 10338: pcaddi $a0, 16
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x20418+32 - 0x10348 = 16444<<2
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# GD64: 10348: pcaddi $a0, 16444
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# GD64-NEXT: ld.d $ra, $a0, 0
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# GD64-NEXT: jirl $ra, $ra, 0
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# GD64-NEXT: add.d $a4, $a0, $tp
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# LE64-RELA: .rela.dyn {
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# LE64-RELA-NEXT: 0x30278 R_LARCH_TLS_DESC64 - 0x8
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# LE64-RELA-NEXT: 0x30288 R_LARCH_TLS_DESC64 - 0x800
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# LE64-RELA-NEXT: 0x30298 R_LARCH_TLS_DESC64 - 0x1000
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# LE64-RELA-NEXT: 0x302A8 R_LARCH_TLS_DESC64 - 0x7FF
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# LE64-RELA-NEXT: }
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# LE64-RELA: Hex dump of section '.got':
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# LE64-RELA-NEXT: 0x00030278 00000000 00000000 00000000 00000000 .
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# LE64-RELA-NEXT: 0x00030288 00000000 00000000 00000000 00000000 .
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# LE64-RELA-NEXT: 0x00030298 00000000 00000000 00000000 00000000 .
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# LE64-RELA-NEXT: 0x000302a8 00000000 00000000 00000000 00000000 .
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# LE64-LABEL: <.text>:
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## &.got[a]-. = 0x30278 - 0x20228: 0x10 pages, page offset 0x278
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# LE64-NEXT: 20228: pcalau12i $a0, 16
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# LE64-NEXT: addi.d $a0, $a0, 632
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# LE64-NEXT: ld.d $ra, $a0, 0
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# LE64-NEXT: jirl $ra, $ra, 0
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# LE64-NEXT: add.d $a1, $a0, $tp
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## &.got[b]-. = 0x302a8 - 0x2023c: 0x10 pages, page offset 0x2a8
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# LE64-NEXT: 2023c: pcalau12i $a0, 16
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# LE64-NEXT: addi.d $a0, $a0, 680
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# LE64-NEXT: ld.d $ra, $a0, 0
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# LE64-NEXT: jirl $ra, $ra, 0
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# LE64-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x30288 - 0x20250: 0x10 pages, page offset 0x288
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# LE64-NEXT: 20250: pcalau12i $a0, 16
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# LE64-NEXT: addi.d $a0, $a0, 648
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# LE64-NEXT: ld.d $ra, $a0, 0
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# LE64-NEXT: jirl $ra, $ra, 0
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# LE64-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x30298 - 0x20264: 0x10 pages, page offset 0x298
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# LE64-NEXT: 20264: pcalau12i $a0, 16
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# LE64-NEXT: addi.d $a0, $a0, 664
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# LE64-NEXT: ld.d $ra, $a0, 0
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# LE64-NEXT: jirl $ra, $ra, 0
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# LE64-NEXT: add.d $a4, $a0, $tp
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# IE64-RELA: .rela.dyn {
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# IE64-RELA-NEXT: 0x30428 R_LARCH_TLS_DESC64 - 0x8
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# IE64-RELA-NEXT: 0x30458 R_LARCH_TLS_DESC64 - 0x7FF
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# IE64-RELA-NEXT: 0x30438 R_LARCH_TLS_DESC64 c 0x0
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# IE64-RELA-NEXT: 0x30448 R_LARCH_TLS_DESC64 d 0x0
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# IE64-RELA-NEXT: }
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# IE64-RELA: Hex dump of section '.got':
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# IE64-RELA-NEXT: 0x00030428 00000000 00000000 00000000 00000000 .
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# IE64-RELA-NEXT: 0x00030438 00000000 00000000 00000000 00000000 .
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# IE64-RELA-NEXT: 0x00030448 00000000 00000000 00000000 00000000 .
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# IE64-RELA-NEXT: 0x00030458 00000000 00000000 00000000 00000000 .
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## a and b are optimized to use LE. c and d are optimized to IE.
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# IE64-LABEL: <.text>:
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## &.got[a]-. = 0x30428 - 0x202f8: 0x10 pages, page offset 0x428
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# IE64-NEXT: 202f8: pcalau12i $a0, 16
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# IE64-NEXT: addi.d $a0, $a0, 1064
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# IE64-NEXT: ld.d $ra, $a0, 0
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# IE64-NEXT: jirl $ra, $ra, 0
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# IE64-NEXT: add.d $a1, $a0, $tp
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## &.got[b]-. = 0x30458 - 0x2030c: 0x10 pages, page offset 0x458
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# IE64-NEXT: 2030c: pcalau12i $a0, 16
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# IE64-NEXT: addi.d $a0, $a0, 1112
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# IE64-NEXT: ld.d $ra, $a0, 0
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# IE64-NEXT: jirl $ra, $ra, 0
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# IE64-NEXT: add.d $a2, $a0, $tp
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## &.got[c]-. = 0x30438 - 0x20320: 0x10 pages, page offset 0x438
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# IE64-NEXT: 20320: pcalau12i $a0, 16
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# IE64-NEXT: addi.d $a0, $a0, 1080
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# IE64-NEXT: ld.d $ra, $a0, 0
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# IE64-NEXT: jirl $ra, $ra, 0
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# IE64-NEXT: add.d $a3, $a0, $tp
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## &.got[d]-. = 0x30448 - 0x20334: 0x10 pages, page offset 0x448
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# IE64-NEXT: 20334: pcalau12i $a0, 16
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# IE64-NEXT: addi.d $a0, $a0, 1096
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# IE64-NEXT: ld.d $ra, $a0, 0
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# IE64-NEXT: jirl $ra, $ra, 0
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# IE64-NEXT: add.d $a4, $a0, $tp
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# GD32-REL: .rel.dyn {
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# GD32-REL-NEXT: 0x202A4 R_LARCH_TLS_DESC32 -
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# GD32-REL-NEXT: 0x2028C R_LARCH_TLS_DESC32 a
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# GD32-REL-NEXT: 0x20294 R_LARCH_TLS_DESC32 c
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# GD32-REL-NEXT: 0x2029C R_LARCH_TLS_DESC32 d
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# GD32-REL-NEXT: }
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# GD32-REL: Hex dump of section '.got':
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# GD32-REL-NEXT: 0x0002028c 00000000 00000000 00000000 00000000 .
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# GD32-REL-NEXT: 0x0002029c 00000000 00000000 00000000 ff070000 .
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#--- a.s
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.macro add dst, src1, src2
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.ifdef ELF32
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add.w \dst, \src1, \src2
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.else
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add.d \dst, \src1, \src2
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.endif
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.endm
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la.tls.desc $a0, a
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add $a1, $a0, $tp
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la.tls.desc $a0, b
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add $a2, $a0, $tp
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la.tls.desc $a0, c
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add $a3, $a0, $tp
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la.tls.desc $a0, d
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add $a4, $a0, $tp
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.section .tbss,"awT",@nobits
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.globl a
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.zero 8
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a:
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.zero 2039 ## Place b at 0x7ff
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b:
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.zero 1
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#--- c.s
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.section .tbss,"awT",@nobits
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.globl c, d
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c:
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.zero 2048 ## Place d at 0x1000
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d:
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.zero 4

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