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229 Commits

Author SHA1 Message Date
Eric Christopher
bd3c66b31a Fix the assembly and dissassembly of DW_FORM_sec_offset. Found this by 
changing both the string of the dwo_name to be correct and the type of
the statement list.

Testcases all around.

llvm-svn: 172699
 2013-01-17 03:00:04 +00:00
Eric Christopher
7c06c5fb2b Add the DW_AT_GNU_addr_base for the skeleton cu. Add support for 
emitting the dwarf32 version of DW_FORM_sec_offset and correct
disassembler support.

llvm-svn: 172698
 2013-01-17 02:59:59 +00:00
Eric Christopher
a159b6c731 Split address information for DWARF5 split dwarf proposal. This involves 
using the DW_FORM_GNU_addr_index and a separate .debug_addr section which
stays in the executable and is fully linked.

Sneak in two other small changes:

a) Print out the debug_str_offsets.dwo section.
b) Change form we're expecting the entries in the debug_str_offsets.dwo
   section to take from ULEB128 to U32.

Add tests for all of this in the fission-cu.ll test.

llvm-svn: 172578
 2013-01-15 23:56:56 +00:00
NAKAMURA Takumi
3f5b60a9a0 [Object, DebugInfo] Make DWARFContext BE-aware. 
test/DebugInfo/member-pointers.ll would not fail in targetting BE any more.

llvm-svn: 171943
 2013-01-09 02:45:05 +00:00
Eric Christopher
4b9394acd5 Whitespace and 80-col. 
llvm-svn: 171804
 2013-01-07 22:40:48 +00:00
Eric Christopher
ba738518f0 Add support for separating strings for the split debug info DWARF5 
proposal. This leaves the strings in the skeleton die as strp,
but in all dwo files they're accessed now via DW_FORM_GNU_str_index.

Add support for dumping these sections and modify the fission-cu.ll
testcase to have the correct strings and form. Fix a small bug
in the fixed form sizes routine that involved out of array accesses
for the table and add a FIXME in the extractFast routine to fix
this up.

llvm-svn: 171779
 2013-01-07 19:32:41 +00:00
Eric Christopher
e8b74437f7 Update comment. 
llvm-svn: 171689
 2013-01-07 03:27:58 +00:00
Eric Christopher
d593f65fae Add a space to the end of the line so we don't get "itsbounds" in output. 
llvm-svn: 171487
 2013-01-04 18:30:36 +00:00
Eric Christopher
03fdb543d9 Extend the dumping infrastructure to deal with additional 
sections for debug info. These are some of the dwo sections from the
DWARF5 split debug info proposal. Update the fission-cu.ll testcase
to show what we should be able to dump more of now.

Work in progress: Ultimately the relocations will be gone for the
dwo section and the strings will be a different form (as well as
the rest of the sections will be included).

llvm-svn: 171428
 2013-01-02 23:52:13 +00:00
Eric Christopher
c6fa1e95a2 Right now all of the relocations are 32-bit dwarf, and the relocation 
information doesn't return an addend for Rel relocations. Go ahead
and use this information to fix relocation handling inside dwarfdump
for 32-bit ELF REL.

llvm-svn: 171126
 2012-12-27 01:07:07 +00:00
Rafael Espindola
cb6155ac8d Don't skip __DWARF, 
Now that we don't merge section and segment names, we don't need to skip the
segment name to get to the section name.

llvm-svn: 170839
 2012-12-21 04:08:03 +00:00
Bill Wendling
56d9c4b832 Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future. 
llvm-svn: 170502
 2012-12-19 07:18:57 +00:00
Chandler Carruth
a98c778194 Sort includes for all of the .h files under the 'lib' tree. These were 
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of these headers without
manual edits. =]

llvm-svn: 169224
 2012-12-04 07:12:27 +00:00
Eric Christopher
178793931e The section is .debug_line. 
llvm-svn: 168666
 2012-11-27 01:40:36 +00:00
Eric Christopher
5843894e1e Add some basic support for the fission addr forms to DebugInfo. 
llvm-svn: 168223
 2012-11-16 23:44:11 +00:00
Alexey Samsonov
3f02d70a5b [DebugInfo] Generate address ranges for compile units even if .debug_aranges is present: it is often the case that .debug_aranges section contains ranges only for a small subset of compile units. Test cases will be added in separate commits. 
llvm-svn: 168144
 2012-11-16 08:36:25 +00:00
Eric Christopher
9df7c1b185 Rewrite DIContext interface to take an object. Update all callers. 
llvm-svn: 167757
 2012-11-12 21:40:38 +00:00
Alexey Samsonov
8fee8dc998 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
b34bece6a8 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
1dcc1b0cdc Reformat and 80-column this. It's not strictly conforming 
yet, but it's better.

llvm-svn: 167053
 2012-10-30 21:36:43 +00:00
Eric Christopher
98ed8efd11 Use a typedef to reduce some typing and reformat code accordingly. 
llvm-svn: 166077
 2012-10-16 23:46:25 +00:00
Eric Christopher
e411070efb Variable name cleanup. 
llvm-svn: 166076
 2012-10-16 23:46:23 +00:00
Craig Topper
5a3d1cefa5 Mark unimplemented copy constructors and copy assignment operators as LLVM_DELETED_FUNCTION. 
llvm-svn: 164090
 2012-09-18 02:01:41 +00:00
Roman Divacky
85348270cd Stop casting away const qualifier needlessly. 
llvm-svn: 163258
 2012-09-05 22:26:57 +00:00
Roman Divacky
4c161d6fab Remove unused typedefs gcc4.8 warns about. 
llvm-svn: 163225
 2012-09-05 17:55:46 +00:00
Alexey Samsonov
0dd3d6f49e 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
ac2e149b2d Refactor fetching file/line info from DWARFContext to simplify the 
code and allow better code reuse. Make the code a bit more conforming
to LLVM code style.
No functionality change.

llvm-svn: 162895
 2012-08-30 07:49:50 +00:00
Marshall Clow
7c9fea2579 Fix compile error when building with C++11 - clang thinks that PRIx64 is a user-defined suffix or something 
llvm-svn: 162704
 2012-08-27 22:53:35 +00:00
NAKAMURA Takumi
940981753b DWARFDebugRangeList.cpp: Use PRIx64 for uint64_t as format string. 
llvm-svn: 162665
 2012-08-27 10:10:10 +00:00
Alexey Samsonov
57736afed2 [DebugInfo] fixup for r162657: update CMakeLists.txt 
llvm-svn: 162659
 2012-08-27 07:24:43 +00:00
Alexey Samsonov
e39e62d8e5 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
Eric Christopher
742a44014e Add support for some missing DW_FORM_*. 
TODO: Fix code duplication and coding style.
llvm-svn: 162525
 2012-08-24 01:14:23 +00:00
Eric Christopher
2ab028ca0f Formatting. 
llvm-svn: 162524
 2012-08-24 01:14:21 +00:00
Eric Christopher
1b1c2a9f48 Formatting cleanup. 
llvm-svn: 162499
 2012-08-23 23:26:57 +00:00
Eric Christopher
becf1e9673 Add an assert here in case parsing gave us a NULL compile unit. 
llvm-svn: 162498
 2012-08-23 23:21:11 +00:00
Eric Christopher
524510c805 80-col. 
llvm-svn: 162422
 2012-08-23 00:52:51 +00:00
Eric Christopher
73e02367e0 Tidy. 
llvm-svn: 162421
 2012-08-23 00:52:49 +00:00
Alexey Samsonov
fa8f91a368 Fix the representation of debug line table in DebugInfo LLVM library, 
and "instruction address -> file/line" lookup.

Instead of plain collection of rows, debug line table for compilation unit is now
treated as the number of row ranges, describing sequences (series of contiguous machine
instructions). The sequences are not always listed in the order of increasing
address, so previously used std::lower_bound() sometimes produced wrong results.
Now the instruction address lookup consists of two stages: finding the correct
sequence, and searching for address in range of rows for this sequence.

llvm-svn: 161414
 2012-08-07 11:46:57 +00:00
Alexey Samsonov
8832a9374f 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
5204605486 Improve behavior of DebugInfoEntryMinimal::getSubprogramName() introduced in r159512. 
To fetch a subprogram name we should not only inspect the DIE for this subprogram, but optionally inspect
its specification, or its abstract origin (even if there is no inlining), or even specification of an abstract origin.

Reviewed by Benjamin Kramer.

llvm-svn: 160365
 2012-07-17 15:28:35 +00:00
Alexey Samsonov
a887f63924 Fix a bug in DebugInfo lib, extend a comment for one of the methods 
llvm-svn: 159707
 2012-07-04 09:42:54 +00:00
Alexey Samsonov
2e5d156c11 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
Benjamin Kramer
270e886395 Fix a C++11 UDL conflict. 
Still not fixed in the standard ;)

llvm-svn: 154044
 2012-04-04 20:33:56 +00:00
David Blaikie
06ecc99a56 More dead code removal (using -Wunreachable-code) 
llvm-svn: 148578
 2012-01-20 21:51:11 +00:00
David Blaikie
576aba04f1 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 
llvm-svn: 146960
 2011-12-20 02:50:00 +00:00
Daniel Dunbar
30d6a45140 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Daniel Dunbar
4e00f5f8fd build/CMake: Finish removal of add_llvm_library_dependencies. 
llvm-svn: 145420
 2011-11-29 19:25:30 +00:00
Benjamin Kramer
da83e60daf Audited all the format strings in libDebugInfo and fixed those that didn't match the types. 
llvm-svn: 143814
 2011-11-05 16:01:13 +00:00
Benjamin Kramer
638df7f8c4 Reduce the offsets in DwarfDebugInfoEntry to 32 bit, they're printed with %x and 
that breaks on big-endian machines.

I have to clean up the 32/64 bit confusion in libDebugInfo some day.

llvm-svn: 143812
 2011-11-05 15:35:00 +00:00
Benjamin Kramer
3c2ba1a51a Add more PRI.64 macros for MSVC and use them throughout the codebase. 
llvm-svn: 143799
 2011-11-05 08:57:40 +00:00
Daniel Dunbar
3760ebeebb build: Add initial cut at LLVMBuild.txt files. 
llvm-svn: 143634
 2011-11-03 18:53:17 +00:00
NAKAMURA Takumi
cc0706b36c lib/DebugInfo/DWARFDebugLine.cpp: De-Unicode-ify. 
llvm-svn: 141484
 2011-10-08 11:22:47 +00:00
NAKAMURA Takumi
fe47764929 Whitespace 
llvm-svn: 141483
 2011-10-08 11:22:41 +00:00
Benjamin Kramer
ff31737153 DWARF: avoid unnecessary map lookups. 
llvm-svn: 140260
 2011-09-21 17:31:42 +00:00
Benjamin Kramer
5938cf29d2 Namespacify. 
llvm-svn: 139892
 2011-09-16 00:35:06 +00:00
Benjamin Kramer
e98b6ec93c DWARF: Reset the state after parsing a line table prologue and remove an unnecessary lookup. 
llvm-svn: 139859
 2011-09-15 21:59:13 +00:00
Benjamin Kramer
912beeec25 DWARF: Don't crash when looking up an invalid address. 
llvm-svn: 139846
 2011-09-15 21:08:54 +00:00
Benjamin Kramer
a2833ff7e0 DWARF: Put all the pieces we have together and provide a single accessor to DIContext that provides line information when given an address. 
llvm-svn: 139836
 2011-09-15 20:43:22 +00:00
Benjamin Kramer
5307d9c91a DWARF: Remove accessors that parse the whole line table section in one go, this can't possibly work. 
The address size is specified by the compile unit associated with a line table, there is no global address size.

llvm-svn: 139835
 2011-09-15 20:43:18 +00:00
Benjamin Kramer
1adbd30351 DWARF: Print line tables per compile unit, so they get the right address size. 
llvm-svn: 139808
 2011-09-15 18:02:20 +00:00
Benjamin Kramer
900209189c DWARF: wire up .debug_str dumping. 
llvm-svn: 139799
 2011-09-15 16:57:13 +00:00
Benjamin Kramer
346abfde05 DWARF: Make DIE printing more bulletproof. 
llvm-svn: 139786
 2011-09-15 05:43:00 +00:00
Benjamin Kramer
2b93dac69c DWARF: Print the number for unknown abbrev fields. 
Thanks Nick!

llvm-svn: 139778
 2011-09-15 04:15:59 +00:00
Benjamin Kramer
2dd05a53d3 DWARF: Fail gracefully when encountering unknown values in an abbrev. 
llvm-svn: 139777
 2011-09-15 04:00:58 +00:00
Nick Lewycky
4b85977895 Give structs with virtual methods a virtual destructor. 
llvm-svn: 139776
 2011-09-15 03:41:51 +00:00
Benjamin Kramer
8f332f8767 DWARF: Silence GCC -Wsign-compare warning. 
llvm-svn: 139775
 2011-09-15 03:20:04 +00:00
Benjamin Kramer
551244d899 DWARF: Fix indentation. 
llvm-svn: 139774
 2011-09-15 03:11:09 +00:00
Benjamin Kramer
8013b8f7e0 DWARF: Include <algorithm> explicitly. 
llvm-svn: 139773
 2011-09-15 02:19:33 +00:00
Benjamin Kramer
ceca872d69 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
00648a5c53 DWARF: Generate the address lookup table from the DIE tree if .debug_aranges is not available. 
Ported from LLDB.

llvm-svn: 139732
 2011-09-14 20:52:27 +00:00
Benjamin Kramer
3f753c2372 DWARF: Reorder fields to reduce padding. 
llvm-svn: 139712
 2011-09-14 18:34:47 +00:00
Benjamin Kramer
fd97743d22 DWARF: Improve indentation of DIE dumping so it's easier to see the structure. 
llvm-svn: 139705
 2011-09-14 17:54:56 +00:00
Benjamin Kramer
b08f6dc724 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
a7b727b0bf Don't rely in <algorithm> being pulled in transitively. 
llvm-svn: 139684
 2011-09-14 01:27:48 +00:00
Benjamin Kramer
6b456ffb42 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
62f1c110f1 DebugInfo: Don't print DIEs multiple times. 
llvm-svn: 139671
 2011-09-14 00:15:32 +00:00
Benjamin Kramer
c592744658 Style & indentation tweaks. 
llvm-svn: 139646
 2011-09-13 21:47:32 +00:00
Benjamin Kramer
fdfaae6a8f I know copy&paste! 
llvm-svn: 139628
 2011-09-13 19:49:53 +00:00
Benjamin Kramer
c4e7a56915 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