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Commit Graph

15 Commits

Author SHA1 Message Date
Alexey Samsonov
cd61455798 Create a stub for DWARF parser unittests
Moves one DWARF-specific header to include/llvm/DebugInfo from lib/.
Add a short unittest for r179095.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179678 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17 08:29:02 +00:00
Alexey Samsonov
32a3e78304 DWARF parser: Fix DWARF-2/3 incompatibility: size of DW_FORM_ref_addr is the same as DW_FORM_addr in DWARF2, and is 4/8 bytes on 32/64-bit DWARF starting from DWARF3. Adding a test for this is a huge pain - generating and uploading pre-built binary with DWARF3 debug info is way too ugly, and writing fine-grained unittests for DebugInfo is impossible, as it doesn't expose any headers in include/llvm. That said, I'm going to choose the second approach and submit the patch exposing DebugInfo headers for review soon enough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179095 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 14:09:42 +00:00
Eric Christopher
642469f582 Add a space to the end of the line so we don't get "itsbounds" in output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171487 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04 18:30:36 +00:00
Eric Christopher
82de10a34c 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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171428 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02 23:52:13 +00:00
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
Eric Christopher
5d04a3ad0e Formatting cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162499 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 23:26:57 +00:00
Eric Christopher
fa76f22865 Add an assert here in case parsing gave us a NULL compile unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162498 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 23:21:11 +00:00
Eric Christopher
1a145c409a Tidy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162421 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-23 00:52:49 +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
a9543aadff Fix a bug in DebugInfo lib, extend a comment for one of the methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159707 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-04 09:42:54 +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
Benjamin Kramer
fe80f1da40 DWARF: Print line tables per compile unit, so they get the right address size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15 18:02:20 +00:00
Benjamin Kramer
10df80692c DWARF: Generate the address lookup table from the DIE tree if .debug_aranges is not available.
Ported from LLDB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 20:52:27 +00:00
Benjamin Kramer
15ec085c40 DebugInfo: Don't print DIEs multiple times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139671 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14 00:15:32 +00:00
Benjamin Kramer
72c0d7fdd3 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139627 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13 19:42:23 +00:00