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73 Commits

Author SHA1 Message Date
Eli Bendersky fd08bc195b Initial support for DWARF CFI parsing and dumping in LLVM 
llvm-svn: 174463
 2013-02-05 23:30:58 +00:00
Eli Bendersky a5a4ff5a58 When encountering an unknown file format, ObjectFile::createObjectFile should 
politely report it instead of running into llvm_unreachable.

Also patch llvm-dwarfdump to actually check whether the file it's attempting to
dump is a valid object file.

llvm-svn: 173489
 2013-01-25 20:53:41 +00:00
Eli Bendersky 7a94daa170 Add command-line flags for DWARF dumping. 
Flags for dumping specific DWARF sections added in lib/DebugInfo and
llvm-dwarfdump.

llvm-svn: 173480
 2013-01-25 20:26:43 +00:00
Eli Bendersky 48eaffc9f7 Rename variable to be more comprehensible and follow naming convention 
llvm-svn: 173460
 2013-01-25 17:06:42 +00:00
Chandler Carruth 4d88a1c233 Sort the #include lines for tools/... 
Again, tools are trickier to pick the main module header for than
library source files. I've started to follow the pattern of using
LLVMContext.h when it is included as a stub for program source files.

llvm-svn: 169252
 2012-12-04 10:44:52 +00:00
Eric Christopher 7370b55262 Rewrite DIContext interface to take an object. Update all callers. 
llvm-svn: 167757
 2012-11-12 21:40:38 +00:00
Alexey Samsonov 9cb13d59b7 Fixup for r167558: Store raw pointer (instead of reference) to RelocMap in DIContext. This is needed to prevent crashes because of dangling reference if the clients don't provide RelocMap to DIContext constructor. 
llvm-svn: 167728
 2012-11-12 14:25:36 +00:00
Eric Christopher 7c678de861 Add a relocation visitor to lib object. This works via caching relocated 
values in a map that can be passed to consumers. Add a testcase that
ensures this works for llvm-dwarfdump.

llvm-svn: 167558
 2012-11-07 23:22:07 +00:00
Eric Christopher 3680f8826e Formatting and 80-col. 
llvm-svn: 166075
 2012-10-16 23:46:21 +00:00
Alexey Samsonov c942e6b781 Add support for fetching inlining context (stack of source code locations) 
by instruction address from DWARF.

Add --inlining flag to llvm-dwarfdump to demonstrate and test this functionality,
so that "llvm-dwarfdump --inlining --address=0x..." now works much like
"addr2line -i 0x...", provided that the binary has debug info
(Clang's -gline-tables-only *is* enough).

llvm-svn: 163128
 2012-09-04 08:12:33 +00:00
Alexey Samsonov 034e57a297 Add basic support for .debug_ranges section to LLVM's DebugInfo library. 
This section (introduced in DWARF-3) is used to define instruction address
ranges for functions that are not contiguous and can't be described
by low_pc/high_pc attributes (this is the usual case for inlined subroutines).
The patch is the first step to support fetching complete inlining info from DWARF.

Reviewed by Benjamin Kramer.

llvm-svn: 162657
 2012-08-27 07:17:47 +00:00
Alexey Samsonov e16e16add6 DebugInfo library: add support for fetching absolute paths to source files 
(instead of basenames) from DWARF. Use this behavior in llvm-dwarfdump tool.

Reviewed by Benjamin Kramer.

llvm-svn: 160496
 2012-07-19 07:03:58 +00:00
Alexey Samsonov f4462fa3ca This patch extends the libLLVMDebugInfo which contains a minimalistic DWARF parser: 
1) DIContext is now able to return function name for a given instruction address (besides file/line info).
2) llvm-dwarfdump accepts flag --functions that prints the function name (if address is specified by --address flag).
3) test case that checks the basic functionality of llvm-dwarfdump added

llvm-svn: 159512
 2012-07-02 05:54:45 +00:00
Daniel Dunbar 27a7489a03 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Daniel Dunbar 57fb3ae997 LLVMBuild: Add description files for the LLVM tools. 
llvm-svn: 144417
 2011-11-11 22:59:39 +00:00
Daniel Dunbar 96d812a68d build: Tidy up a bunch of tool Makefiles, and simplify where possible using the 
new all-targets pseudo-component.

llvm-svn: 142401
 2011-10-18 19:27:24 +00:00
Michael J. Spencer 5fd56b8302 Fix a few changes I missed. 
llvm-svn: 141392
 2011-10-07 19:52:41 +00:00
Benjamin Kramer 4d9924f950 llvm-dwarfdump: Add an option to print out line info for a specific address 
Usage:
$ llvm-dwarfdump -address=0x0000000100000ed4 a.out.dSYM/Contents/Resources/DWARF/a.out 
xxx.c:6:0

llvm-svn: 139850
 2011-09-15 21:17:40 +00:00
Benjamin Kramer 07d4b1c455 DWARF: wire up .debug_str dumping. 
llvm-svn: 139799
 2011-09-15 16:57:13 +00:00
Benjamin Kramer 5acab501de DWARF: Add basic support for line tables. 
The llvm-dwarfdump output isn't very verbose yet.

llvm-svn: 139771
 2011-09-15 02:12:05 +00:00
Benjamin Kramer 973b5cde7e llvm-dwarfdump: Make the "is debug info section" heuristic stricter so it doesn't accidentaly picks up the wrong section. 
Also add some validation code to the aranges section parser.

Fixes PR10926.

llvm-svn: 139701
 2011-09-14 17:28:13 +00:00
Benjamin Kramer a6002fd920 DWARF: Port support for parsing .debug_aranges section from LLDB and wire it up to llvm-dwarfdump. 
This is only one half of it, the part that caches address ranges from the DIEs when .debug_aranges is
not available will be ported soon.

llvm-svn: 139680
 2011-09-14 01:09:52 +00:00
Benjamin Kramer aa2f78f5e6 Sketch out a DWARF parser. 
This introduces a new library to LLVM: libDebugInfo. It will provide debug information
parsing to LLVM. Much of the design and some of the code is taken from the LLDB project.

It also contains an llvm-dwarfdump tool that can dump the abbrevs and DIEs from an
object file. It can be used to write tests for DWARF input and output easily.

llvm-svn: 139627
 2011-09-13 19:42:23 +00:00