derek.holloway
7502bf64a4
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60 lines
1.6 KiB
ArmAsm
60 lines
1.6 KiB
ArmAsm
# REQUIRES: systemz
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# RUN: llvm-mc -filetype=obj -triple=s390x-unknown-linux %s -o %t.o
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# RUN: ld.lld -shared %t.o -soname=t.so -o %t.so
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# RUN: llvm-readelf -S -s -x .data -x .data1 %t.so | FileCheck %s
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# CHECK: Section Headers:
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# CHECK: .plt PROGBITS 0000000000001290
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# CHECK: .got PROGBITS 0000000000002390
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# CHECK: Symbol table '.symtab'
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# CHECK: 0000000000001288 {{.*}} bar
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# CHECK: 000000000000128a {{.*}} baz
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## .data holds relocations against non-preemptible symbols (link-time
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## constants): GOTOFF (bar) and PLTOFF (baz). For PLTOFF (baz) the scan
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## rewrites R_PLT_GOTREL → R_GOTREL via fromPlt so the result is
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## baz - .got, not the offset of a PLT entry.
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## GOTOFF (bar) = bar - .got = 0x1288 - 0x2390 = 0xffffeef8
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## PLTOFF (baz) = baz - .got = 0x128a - 0x2390 = 0xffffeefa
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# CHECK: Hex dump of section '.data':
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# CHECK-NEXT: eef8eefa ffffeef8 ffffeefa ffffffff
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# CHECK-NEXT: ffffeef8 ffffffff ffffeefa
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## .data1 holds relocations against the preemptible foo, which uses the
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## first (and only) PLT entry at .plt + 32.
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## PLTOFF (foo) = (.plt + 32) - .got = 0x12b0 - 0x2390 = 0xffffef20
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# CHECK: Hex dump of section '.data1':
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# CHECK-NEXT: ef20ffff ef20ffff ffffffff ef20
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bar:
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br %r14
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.hidden baz
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.globl baz
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baz:
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br %r14
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.data
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.reloc ., R_390_GOTOFF16, bar
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.space 2
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.reloc ., R_390_PLTOFF16, baz
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.space 2
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.reloc ., R_390_GOTOFF, bar
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.space 4
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.reloc ., R_390_PLTOFF32, baz
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.space 4
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.reloc ., R_390_GOTOFF64, bar
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.space 8
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.reloc ., R_390_PLTOFF64, baz
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.space 8
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.section .data1,"aw"
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.reloc ., R_390_PLTOFF16, foo
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.space 2
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.reloc ., R_390_PLTOFF32, foo
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.space 4
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.reloc ., R_390_PLTOFF64, foo
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.space 8
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