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MC: support FK_SecRel_4 for Windows on ARM

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Add handling for FK_SecRel_4 (4-byte section relative relocations).  These are
used by the generation of DWARF debug information (the abbrevations use section
relative relocations).  This will also be used in generation of CodeView line
tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207941 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool
2014-05-04 23:13:15 +00:00
parent 99b03e3401
commit a7321a6e53
3 changed files with 48 additions and 0 deletions
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41
test/MC/ARM/coff-debugging-secrel.ll Normal file
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@@ -0,0 +1,41 @@
; RUN: llc -mtriple thumbv7--windows-itanium -filetype obj -o - %s \
; RUN: | llvm-readobj -r - | FileCheck %s
; ModuleID = '/Users/compnerd/work/llvm/test/MC/ARM/reduced.c'
target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7--windows-itanium"
define arm_aapcs_vfpcc void @function() {
entry:
ret void, !dbg !0
}
!llvm.dbg.cu = !{!7}
!llvm.module.flags = !{!9, !10}
!0 = metadata !{i32 1, i32 0, metadata !1, null}
!1 = metadata !{i32 786478, metadata !2, metadata !3, metadata !"function", metadata !"function", metadata !"", i32 1, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, void ()* @function, null, null, metadata !6, i32 1} ; [ DW_TAG_subprogram ], [line 1], [def], [function]
!2 = metadata !{metadata !"/Users/compnerd/work/llvm/test/MC/ARM/reduced.c", metadata !"/Users/compnerd/work/llvm"}
!3 = metadata !{i32 786473, metadata !2} ; [ DW_TAG_file_type] [/Users/compnerd/work/llvm/test/MC/ARM/reduced.c]
!4 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !5, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ], [line 0, size 0, align 0, offset 0] [from ]
!5 = metadata !{null}
!6 = metadata !{}
!7 = metadata !{i32 786449, metadata !2, i32 12, metadata !"clang version 3.5.0", i1 false, metadata !"", i32 0, metadata !6, metadata !6, metadata !8, metadata !6, metadata !6, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/Users/compnerd/work/llvm/test/MC/ARM/reduced.c] [DW_LANG_C99]
!8 = metadata !{metadata !1}
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
; CHECK: Relocations [
; CHECK: Section {{.*}} .debug_info {
; CHECK: 0x6 IMAGE_REL_ARM_SECREL .debug_abbrev
; CHECK: 0xC IMAGE_REL_ARM_SECREL .debug_str
; CHECK: 0x12 IMAGE_REL_ARM_SECREL .debug_str
; CHECK: 0x16 IMAGE_REL_ARM_SECREL .debug_line
; CHECK: 0x1A IMAGE_REL_ARM_SECREL .debug_str
; CHECK: 0x27 IMAGE_REL_ARM_SECREL .debug_str
; CHECK: }
; CHECK: Section {{.*}}.debug_pubnames {
; CHECK: 0x6 IMAGE_REL_ARM_SECREL .debug_info
; CHECK: }
; CHECK: ]