Commit Graph

11 Commits

Author SHA1 Message Date
Alexey Samsonov
e3ba81bf19 Add support for DebugFission to DWARF parser
Summary:
1) Make llvm-symbolizer properly symbolize
files with split debug info (by using stanalone .dwo files).
2) Make DWARFCompileUnit parse and store corresponding .dwo file,
if necessary.
3) Make bits of DWARF parsing more CompileUnit-oriented.

Reviewers: echristo

Reviewed By: echristo

CC: bkramer, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1164

llvm-svn: 189329
2013-08-27 09:20:22 +00:00
Alexey Samsonov
3211e61b6d Store compile unit corresponding to each chain of inlined debug info entries. No functionality change.
llvm-svn: 187792
2013-08-06 10:49:15 +00:00
Alexey Samsonov
c03f2ee0ae DWARF parser: remove duplicated code and fix code style in DIE extractors.
llvm-svn: 179023
2013-04-08 14:37:16 +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
b604ff2a07 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
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
Benjamin Kramer
f7e0a31f8a 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
3266493603 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
1b2a65ca3a DebugInfo: Don't print DIEs multiple times.
llvm-svn: 139671
2011-09-14 00:15:32 +00:00
Benjamin Kramer
eaa7433c85 Style & indentation tweaks.
llvm-svn: 139646
2011-09-13 21:47:32 +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