Commit Graph

258 Commits

Author SHA1 Message Date
Alexey Samsonov
5eae90d727 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163128 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04 08:12:33 +00:00
Alexey Samsonov
eceb5b9977 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162657 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27 07:17:47 +00:00
Eric Christopher
873cf0a0d7 Use DW_FORM_flag_present to save space in debug information if we're
not in darwin gdb compat mode.

Fixes rdar://10975088

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162526 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24 01:14:27 +00:00
Eric Christopher
cbbd5b1d86 Remove the DW_AT_MIPS_linkage name attribute when we don't need it
output (we're emitting a specification already and the information
isn't changing) and we're not in old gdb compat mode.

Saves 1% on the debug information for a build of llvm.

Fixes rdar://11043421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162493 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 22:52:55 +00:00
Eric Christopher
20f47ab768 Turn these two options in to trinary state so that they can be
turned on and off separate from the platform if you're on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162487 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 22:36:40 +00:00
Eric Christopher
3180d5a0d5 Make this darwin specific to try to silence the bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162435 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 07:18:46 +00:00
Eric Christopher
360f0062bc Emit pubtypes only when going for darwin gdb compatibility.
rdar://10393214

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 07:10:56 +00:00
Eric Christopher
ccffa84943 Filecheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162433 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 07:10:51 +00:00
Alexey Samsonov
351f83be64 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161414 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-07 11:46:57 +00:00
Eric Christopher
6635cad548 Temporarily revert c23b933d5f. It's causing
failures in the debug testsuite and possibly PR13486.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-01 18:19:01 +00:00
Eric Christopher
c23b933d5f Add a DW_AT_high_pc for CUs that are a single address range. Update
all tests accordingly.

Fixes PR13351.

Patch by shinichiro hamaji!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160899 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-27 22:00:05 +00:00
NAKAMURA Takumi
a45d4d1195 test/DebugInfo/dwarfdump-test.test: Tweak expressions for Win32 to match backslashes. They are still odd, though.
For example, Paths are printed on Win32 as below;

/tmp/dbginfo\def2.cc:4:0
/tmp/dbginfo\include\decl2.h:1:0
/tmp/include\decl.h:5:0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160505 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19 13:40:09 +00:00
Alexey Samsonov
71d94f8055 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160496 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19 07:03:58 +00:00
Alexey Samsonov
9d26b0ba06 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160365 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17 15:28:35 +00:00
Eric Christopher
5cf55e1c6a The end of the prologue should be marked with is_stmt.
Fixes PR13303.

Patch by Paul Robinson!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160148 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-12 23:30:25 +00:00
Alexey Samsonov
b67bd33e8e Fix PR13202 and a regtest.
DwarfDebug class could generate the same (inlined) DIVariable twice:
1) when trying to find abstract debug variable for a concrete inlined instance.
2) when explicitly collecting info for variables that were optimized out.

This change makes sure that this duplication won't happen and makes
Clang pass "gdb.opt/inline-locals" test from gdb testsuite.

Reviewed by Eric Christopher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159811 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06 08:45:08 +00:00
Chandler Carruth
49589f0d0e Convert the uses of '|&' to use '2>&1 |' instead, which works on old
versions of Bash. In addition, I can back out the change to the lit
built-in shell test runner to support this.

This should fix the majority of fallout on Darwin, but I suspect there
will be a few straggling issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159544 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02 18:37:59 +00:00
Alexey Samsonov
3e25c4a1e3 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159512 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02 05:54:45 +00:00
Nick Lewycky
ffccd92310 Emit relocations for DW_AT_location entries on systems which need it. This is
a recommit of r127757. Fixes PR9493. Patch by Paul Robinson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158957 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-22 01:25:12 +00:00
Eric Christopher
fc4199bf4a Add support for enum forward declarations.
Part of rdar://11570854

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157786 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-01 00:22:32 +00:00
Peter Collingbourne
27302f0739 Have getOrCreateSubprogramDIE store the DIE for a subprogram
definition in the map before calling itself to retrieve the
DIE for the declaration.  Without this change, if this causes
getOrCreateSubprogramDIE to be recursively called on the definition,
it will create multiple DIEs for that definition.  Fixes PR12831.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157541 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27 18:36:44 +00:00
Eric Christopher
bb0f6eac1f Add support for C++11 enum classes in llvm.
Part of rdar://11496790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157303 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-23 00:09:20 +00:00
Eric Christopher
791e629dee Actually support DW_TAG_rvalue_reference_type that we were trying
to generate out of the front end.

rdar://11479676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157094 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-19 01:36:37 +00:00
Eric Christopher
501207676c Handle OpDeref in case it comes in as a register operand.
Part of rdar://11352000

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156405 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-08 18:56:00 +00:00
Alexey Samsonov
d07d06ceef X86: Use StackRegister instead of FrameRegister in getFrameIndexReference (to generate debug info for local variables) if stack needs realignment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01 15:16:06 +00:00
Eric Christopher
60b35f408b Patch to set is_stmt a little better for prologue lines in a function.
This enables debuggers to see what are interesting lines for a
breakpoint rather than any line that starts a function.

rdar://9852092

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154120 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-05 20:39:05 +00:00
Eric Christopher
fa5b050136 Fix thinko check for number of operands to be the one that actually
might have more than 19 operands. Add a testcase to make sure I
never screw that up again.

Part of rdar://11026482

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03 17:55:42 +00:00
Eric Christopher
663e0cf73d Fix the output of the DW_TAG_friend tag to include DW_AT_friend
and not the rest of the member tag.

Fixes PR11695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153570 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28 07:34:31 +00:00
Eric Christopher
130ba34428 Add a test for the previous commit. Also, remove two tests that were
testing a) the wrong behavior or b) something that I'm already testing
in the new test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153525 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27 18:35:57 +00:00
Eli Bendersky
cc85160672 Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-25 09:02:19 +00:00
NAKAMURA Takumi
5587a8e094 llvm/test/DebugInfo: Move two tests to DebugInfo/X86. They are X86-dependent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153038 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19 16:16:03 +00:00
Eric Christopher
75df9f23fa Do the right thing on NULL uint64 fields.
Patch by Clemens Hammacher!

Fixes PR12243

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152880 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-16 00:21:54 +00:00
Eric Christopher
2125d5a7e5 For types with a parent of the compile unit make sure and emit
the DECL information.

rdar://10855921

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152876 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-15 23:55:40 +00:00
Eric Christopher
8d101c31d2 Revert the removal of DW_AT_MIPS_linkage_name when we aren't putting
out the DW_AT_name. Older gdbs unfortunately still use it to
disambiguate member functions in templated classes (gdb.cp/templates.exp).

rdar://11043421 (which is now deferred for a bit)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-15 08:19:33 +00:00
Eric Christopher
fc7e9ef239 Remove the DW_AT_MIPS_linkage name attribute when we don't need it
output (we're emitting a specification already and the information
isn't changing).

Saves 1% on the debug information for a build of llvm.

Fixes rdar://11043421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152697 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-14 02:59:17 +00:00
Eric Christopher
8938895a83 Add the DW_AT_APPLE_runtime_class attribute to forward declarations
as well as completely defined classes.

This fixes rdar://10956070

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152171 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07 00:15:19 +00:00
Eric Christopher
7550f7dce6 Revert "Reorder the sections being output to reduce the number of assembler"
The inline table needs to be constructed ahead of time so that it doesn't try to
create new strings while we're emitting everything.

This reverts commit a8ff9bccb399183cdd5f1c3cec2bda763664b4b0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151864 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-02 00:30:24 +00:00
Eric Christopher
12313a56ec Reorder the sections being output to reduce the number of assembler
fixups that are being used to determine section offsets. Reduces
the total number of fixups by 50% for a non-trivial testcase.

Part of rdar://10413936

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151852 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01 22:50:31 +00:00
Eric Christopher
178606d92e If the Address of a variable is an argument then treat the entire
variable declaration as an argument because we want that address
anyhow for our debug information.

This seems to fix rdar://9965111, at least we have more debug
information than before and from reading the assembly it appears
to be the correct location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151335 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24 01:59:08 +00:00
Eric Christopher
8b6fe6b651 Only add DW_AT_prototyped if we're working with a C-like language.
Worth another 45k (1%) off of a large C++ testcase.

rdar://10909458

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151144 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22 08:46:21 +00:00
Eric Christopher
ce7090360b Testcase for previous commit.
rdar://10493979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151098 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21 22:25:56 +00:00
Eric Christopher
35f225aa2c There's no need for a DW_AT_byte_size on a pointer type.
Part of rdar://10493979 where it reduces by about .5% (10k)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21 22:25:53 +00:00
Eli Bendersky
0f0c411079 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed.
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16 06:28:33 +00:00
Eric Christopher
bae0884a30 Fix the testcases for the previous patch.
rdar://10278198

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148795 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24 10:11:49 +00:00
Eric Christopher
dcc296d420 Don't avoid recursing for pointer types, just reference types. Expand on
the comment.

Fixes constvars.exp on the gdb test builder.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147897 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11 00:01:29 +00:00
Eric Christopher
2e1b0c0cd9 When recursing for the original size of a type, stop if we are at a
pointer or a reference type - we actually just want the size of the
pointer then for that.

Fixes rdar://10335756

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-16 23:42:45 +00:00
Chris Lattner
d2bf432b2b Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27 06:54:59 +00:00
Chris Lattner
a7e6f74631 remove autoupgrade support for really old-style debug info intrinsics.
I think this is the last of autoupgrade that can be removed in 3.1.
Can the atomic upgrade stuff also go?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-27 06:18:33 +00:00
Rafael Espindola
d1ac3a47f2 The dwarf standard says that the only differences between a out-of-line
instance and a concrete inlined instance are the use of DW_TAG_subprogram
instead of DW_TAG_inlined_subroutine and the who owns the tree.

We were also omitting DW_AT_inline from the abstract roots. To fix this,
make sure we mark abstract instance roots with DW_AT_inline even when
we have only out-of-line instances referring to them with DW_AT_abstract_origin.

FileCheck is not a very good tool for tests like this, maybe we should add
a -verify mode to llvm-dwarfdump.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144441 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-12 01:57:54 +00:00
Devang Patel
48857eb179 Move X86 specific test in X86 directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-11 18:13:19 +00:00