Displaying 4 results from an estimated 4 matches for "lc_segment_64".
2018 Aug 23
2
How does LLDB locate the DWARF information stored inside MACH-O .o files produced by LLVM and LLD?
...e DWARF
info, or otherwise address-to-line info in the .o file.
I'm parsing the MACH-O executable, which has a LC_SYMTAB entry, and one of
the entries is the file path of the .o file. So I can find the file that
way. Then I parse the MACH-O .o file, which also has the LC_SYMTAB, as well
as an LC_SEGMENT_64 and LC_DATA_IN_CODE, and then finally a LC_DYSYMTAB.
But I don't see where the address-to-line information is, or any DWARF
information.
Where is LLDB getting this address-to-line info?
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2012 Sep 27
1
[LLVMdev] CLang/LLVM SVN for today no longer works on OS X 10.7.4
Here you go:
http://www.cornwarning.com/xfer/jccolor.o (from the jpeg library...)
jccolor.o:
Mach header
magic cputype cpusubtype caps filetype ncmds sizeofcmds flags
MH_MAGIC_64 X86_64 ALL 0x00 OBJECT 4 432
SUBSECTIONS_VIA_SYMBOLS
Load command 0
cmd LC_SEGMENT_64
cmdsize 312
segname
vmaddr 0x0000000000000000
vmsize 0x0000000000000900
fileoff 464
filesize 2304
maxprot rwx
initprot rwx
nsects 3
flags (none)
Section
sectname __text
segname __TEXT
addr 0x0000000000000000
size 0x00000000000006b6
offset 464
align 2...
2012 Sep 26
0
[LLVMdev] CLang/LLVM SVN for today no longer works on OS X 10.7.4
Hi Kent,
My guess is you are getting some new bit of info in your object files and your ranlib(1) is older and doesn't know about it. If you can send me the .o file or the output of otool(1) with the -hlv options on your object file I can take a look.
Kev
P.S. you can find out the version of ranlib(1) you have by running strings(1) on it and grep(1)'ing for the string
2012 Sep 26
3
[LLVMdev] CLang/LLVM SVN for today no longer works on OS X 10.7.4
Ran into this today -- rebuilt the SVN Trunk for this morning of
LLVM+CLANG. Now every time my builds try and make a library from .o
files, ranlib complains about 'malformed object' files.
This is with OS X 10.7.4, and the binary tools from XCode 4.4.1
ld -v
@(#)PROGRAM:ld PROJECT:ld64-127.2
llvm version 3.0svn, from Apple Clang 3.0 (build 211.12)
ranlib doesn't tell you what