2019-06-07 01:03:10 +08:00
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# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o
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# RUN: echo '.globl __tls_get_addr; __tls_get_addr:' | llvm-mc -filetype=obj -triple=powerpc - -o %tga.o
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# RUN: ld.lld -shared %t.o -o %t.so
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# RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=LD-REL %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck --check-prefix=LD %s
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# RUN: ld.lld %t.o %tga.o -o %t
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# RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s
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# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s
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# LD-REL: .rela.dyn {
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2019-08-20 17:20:05 +08:00
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# LD-REL-NEXT: 0x202CC R_PPC_DTPMOD32 - 0x0
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2019-06-07 01:03:10 +08:00
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# LD-REL-NEXT: }
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## .got - _GLOBAL_OFFSET_TABLE_ = 0
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# LD: addi 3, 30, 0
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# LD-NEXT: bl .+40
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## a@dtprel = st_value(a)-0x8000 = 65540-0x8000 = 65536*1-32764
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## b@dtprel = st_value(a)-0x8000 = 131080-0x8000 = 65536*2-32760
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# LD-NEXT: addis 9, 3, 1
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# LD-NEXT: addis 10, 3, 2
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# LD-NEXT: addi 9, 9, -32764
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# LD-NEXT: addi 10, 10, -32760
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## small@dtprel = st_value(small)-0x8000 = 4-0x8000 = -32764
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# LD-NEXT: addi 9, 3, -32764
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## Check that b@got@tlsld does not allocate another GOT entry.
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## It shares In.Got->TlsIndexOff allocated when processing a@got@tlsld.
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## .got - _GLOBAL_OFFSET_TABLE_ = 0
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# LD-NEXT: addi 3, 9, 0
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# LD-NEXT: bl .+12
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## b@dtprel = st_value(a)-0x8000 = 131080-0x8000 = 65536*2-32760
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# LD-NEXT: addis 29, 3, 2
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# LD-NEXT: addi 29, 29, -32760
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## When producing an executable, the LD code sequence can be relaxed to LE.
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## It is the same as GD->LE.
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## tpoff(_TLS_MODULE_BASE_) = 0, tpoff(a) = -8, tpoff(b) = -4
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# NOREL: no relocations
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## Set r3 to r2+4096
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# LE: addis 3, 2, 0
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# LE-NEXT: addi 3, 3, 4096
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## a@tprel = 65540-0x7000 = 65536*1-32764
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## b@tprel = 131080-0x7000 = 65536*2-32760
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# LE-NEXT: addis 9, 3, 1
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# LE-NEXT: addis 10, 3, 2
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# LE-NEXT: addi 9, 9, -32764
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# LE-NEXT: addi 10, 10, -32760
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## small@tprel = 4-0x7000 = -32764
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# LE-NEXT: addi 9, 3, -32764
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## Set r3 to r2+4096
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# LE-NEXT: addis 3, 2, 0
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# LE-NEXT: addi 3, 3, 4096
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## b@tprel = 131080-0x7000 = 65536*2-32760
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# LE-NEXT: addis 29, 3, 2
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# LE-NEXT: addi 29, 29, -32760
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addi 3, 30, a@got@tlsld
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bl __tls_get_addr(a@tlsld)
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addis 9, 3, a@dtprel@ha
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addis 10, 3, b@dtprel@ha
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addi 9, 9, a@dtprel@l
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addi 10, 10, b@dtprel@l
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addi 9, 3, small@dtprel
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addi 3, 9, b@got@tlsld
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bl __tls_get_addr(b@tlsld)
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addis 29, 3, b@dtprel@ha
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addi 29, 29, b@dtprel@l
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.section .tbss
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.zero 4
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small:
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.zero 65536
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a:
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.zero 65540
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b:
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