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Fixed a bug in the code to create a dwarf file and directory table entires when

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it is separating the directory part from the basename of the FileName.  Noticed 
that this:

  .file 1 "dir/foo"

when assembled got the two parts switched.  Using the Mac OS X dwarfdump tool
it can be seen easily:

% dwarfdump -a a.out
include_directories[  1] = 'foo'
                Dir  Mod Time   File Len   File Name
                ---- ---------- ---------- ---------------------------
file_names[  1]    1 0x00000000 0x00000000 dir
...

Which should be:
...
include_directories[  1] = 'dir'
                Dir  Mod Time   File Len   File Name
                ---- ---------- ---------- ---------------------------
file_names[  1]    1 0x00000000 0x00000000 foo

llvm-svn: 143521
This commit is contained in:
Kevin Enderby 2011-11-01 23:39:05 +00:00
parent 577b0f181e
commit b5dc88b394
2 changed files with 26 additions and 2 deletions
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6
lib/MC/MCContext.cpp
View File

@ -273,8 +273,10 @@ unsigned MCContext::GetDwarfFile(StringRef Directory, StringRef FileName,
// Separate the directory part from the basename of the FileName.
std::pair<StringRef, StringRef> Slash = FileName.rsplit('/');
Directory = Slash.second;
if (!Directory.empty())
FileName = Slash.first;
if (!Directory.empty()) {
Directory = Slash.first;
FileName = Slash.second;
}
}
// Find or make a entry in the MCDwarfDirs vector for this Directory.

22
test/MC/MachO/file.s Normal file
View File

@ -0,0 +1,22 @@
// RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s
.file 1 "dir/foo"
nop
// CHECK: ('_section_data', '90')
// CHECK-NEXT: # Section 1
// CHECK-NEXT: (('section_name', '__debug_line\x00\x00\x00\x00')
// CHECK-NEXT: ('segment_name', '__DWARF\x00\x00\x00\x00\x00\x00\x00\x00\x00')
// CHECK-NEXT: ('address', 1)
// CHECK-NEXT: ('size', 45)
// CHECK-NEXT: ('offset', 221)
// CHECK-NEXT: ('alignment', 0)
// CHECK-NEXT: ('reloc_offset', 0)
// CHECK-NEXT: ('num_reloc', 0)
// CHECK-NEXT: ('flags', 0x2000000)
// CHECK-NEXT: ('reserved1', 0)
// CHECK-NEXT: ('reserved2', 0)
// CHECK-NEXT: ),
// CHECK-NEXT: ('_relocations', [
// CHECK-NEXT: ])
// CHECK-NEXT: ('_section_data', '29000000 02001e00 00000101 fb0e0d00 01010101 00000001 00000164 69720000 666f6f00 01000000 02000001 01')