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d32e304f9c
This extends the work done in r233995 so that now getFragment (in addition to getSection) also works for variable symbols. With that the existing logic to decide if a-b can be computed works even if a or b are variables. Given that, the expression evaluation can avoid expanding variables as aggressively and that in turn lets the relocation code see the original variable. In order for this to work with the asm streamer, there is now a dummy fragment per section. It is used to assign a section to a symbol when no other fragment exists. This patch is a joint work by Maxim Ostapenko andy myself. llvm-svn: 249303
106 lines
4.0 KiB
ArmAsm
106 lines
4.0 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -s -sr | FileCheck %s
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// Test that we produce the correct relocation.
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.section .pr23272,"aGw",@progbits,pr23272,comdat
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.globl pr23272
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pr23272:
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pr23272_2:
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pr23272_3 = pr23272_2
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.text
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bar:
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movl $bar, %edx # R_X86_64_32
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movq $bar, %rdx # R_X86_64_32S
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movq $bar, bar(%rip) # R_X86_64_32S
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movl bar, %edx # R_X86_64_32S
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movq bar, %rdx # R_X86_64_32S
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.long bar # R_X86_64_32
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leaq foo@GOTTPOFF(%rip), %rax # R_X86_64_GOTTPOFF
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leaq foo@TLSGD(%rip), %rax # R_X86_64_TLSGD
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leaq foo@TPOFF(%rax), %rax # R_X86_64_TPOFF32
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leaq foo@TLSLD(%rip), %rdi # R_X86_64_TLSLD
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leaq foo@dtpoff(%rax), %rcx # R_X86_64_DTPOFF32
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movabs foo@GOT, %rax # R_X86_64_GOT64
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movabs foo@GOTOFF, %rax # R_X86_64_GOTOFF64
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pushq $bar
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movq foo(%rip), %rdx
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leaq foo-bar(%r14),%r14
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addq $bar,%rax # R_X86_64_32S
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.quad foo@DTPOFF
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movabsq $baz@TPOFF, %rax
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.word foo-bar
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.byte foo-bar
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# this should probably be an error...
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zed = foo +2
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call zed@PLT
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leaq -1+foo(%rip), %r11
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movl $_GLOBAL_OFFSET_TABLE_, %eax
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movabs $_GLOBAL_OFFSET_TABLE_, %rax
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.quad blah@SIZE # R_X86_64_SIZE64
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.quad blah@SIZE + 32 # R_X86_64_SIZE64
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.quad blah@SIZE - 32 # R_X86_64_SIZE64
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movl blah@SIZE, %eax # R_X86_64_SIZE32
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movl blah@SIZE + 32, %eax # R_X86_64_SIZE32
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movl blah@SIZE - 32, %eax # R_X86_64_SIZE32
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.long foo@gotpcrel
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.long foo@plt
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.quad pr23272_2 - pr23272
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.quad pr23272_3 - pr23272
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.global pr24486
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pr24486:
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pr24486_alias = pr24486
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.long pr24486_alias
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.code16
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call pr23771
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// CHECK: Section {
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// CHECK: Name: .rela.text
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// CHECK: Relocations [
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// CHECK-NEXT: 0x1 R_X86_64_32 .text
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// CHECK-NEXT: 0x8 R_X86_64_32S .text
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// CHECK-NEXT: 0x13 R_X86_64_32S .text
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// CHECK-NEXT: 0x1A R_X86_64_32S .text
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// CHECK-NEXT: 0x22 R_X86_64_32S .text
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// CHECK-NEXT: 0x26 R_X86_64_32 .text
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// CHECK-NEXT: 0x2D R_X86_64_GOTTPOFF foo 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x34 R_X86_64_TLSGD foo 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x3B R_X86_64_TPOFF32 foo 0x0
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// CHECK-NEXT: 0x42 R_X86_64_TLSLD foo 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x49 R_X86_64_DTPOFF32 foo 0x0
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// CHECK-NEXT: 0x4F R_X86_64_GOT64 foo 0x0
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// CHECK-NEXT: 0x59 R_X86_64_GOTOFF64 foo 0x0
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// CHECK-NEXT: 0x62 R_X86_64_32S .text 0x0
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// CHECK-NEXT: 0x69 R_X86_64_PC32 foo 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x70 R_X86_64_PC32 foo 0x70
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// CHECK-NEXT: 0x77 R_X86_64_32S .text 0x0
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// CHECK-NEXT: 0x7B R_X86_64_DTPOFF64 foo 0x0
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// CHECK-NEXT: 0x85 R_X86_64_TPOFF64 baz 0x0
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// CHECK-NEXT: 0x8D R_X86_64_PC16 foo 0x8D
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// CHECK-NEXT: 0x8F R_X86_64_PC8 foo 0x8F
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// CHECK-NEXT: 0x91 R_X86_64_PLT32 zed 0xFFFFFFFFFFFFFFFC
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// CHECK-NEXT: 0x98 R_X86_64_PC32 foo 0xFFFFFFFFFFFFFFFB
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// CHECK-NEXT: 0x9D R_X86_64_GOTPC32 _GLOBAL_OFFSET_TABLE_ 0x1
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// CHECK-NEXT: 0xA3 R_X86_64_GOTPC64 _GLOBAL_OFFSET_TABLE_ 0x2
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// CHECK-NEXT: 0xAB R_X86_64_SIZE64 blah 0x0
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// CHECK-NEXT: 0xB3 R_X86_64_SIZE64 blah 0x20
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// CHECK-NEXT: 0xBB R_X86_64_SIZE64 blah 0xFFFFFFFFFFFFFFE0
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// CHECK-NEXT: 0xC6 R_X86_64_SIZE32 blah 0x0
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// CHECK-NEXT: 0xCD R_X86_64_SIZE32 blah 0x20
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// CHECK-NEXT: 0xD4 R_X86_64_SIZE32 blah 0xFFFFFFFFFFFFFFE0
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// CHECK-NEXT: 0xD8 R_X86_64_GOTPCREL foo 0x0
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// CHECK-NEXT: 0xDC R_X86_64_PLT32 foo 0x0
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// CHECK-NEXT: 0xF0 R_X86_64_32 .text 0xF0
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// CHECK-NEXT: 0xF5 R_X86_64_PC16 pr23771 0xFFFFFFFFFFFFFFFE
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// CHECK-NEXT: ]
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// CHECK-NEXT: }
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