Commit Graph

3 Commits

Author SHA1 Message Date
Xing GUO ff6a0b6a8e [Object] Change ObjectFile::getSymbolValue() return type to Expected<uint64_t>
Summary:
In D77860, we have changed `getSymbolFlags()` return type to `Expected<uint32_t>`.
This change helps bubble the error further up the stack.

Reviewers: jhenderson, grimar, JDevlieghere, MaskRay

Reviewed By: jhenderson

Subscribers: hiraditya, MaskRay, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79075
2020-05-02 14:04:44 +08:00
Xing GUO 8994b14e8b [DebugInfo] Fix crash caused by unhandled error.
Summary: This patch helps fix LLVM crash caused by unhandled error.

Reviewers: clayborg, aprantl

Reviewed By: clayborg

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78924
2020-04-28 21:39:25 +08:00
Greg Clayton 2f6cc21f44 Add a llvm-gsymutil tool that can convert object files to GSYM and perform lookups.
Summary:
This patch creates the llvm-gsymutil binary that can convert object files to GSYM using the --convert <path> option. It can also dump and lookup addresses within GSYM files that have been saved to disk.

To dump a file:

llvm-gsymutil /path/to/a.gsym

To perform address lookups, like with atos, on GSYM files:

llvm-gsymutil --address 0x1000 --address 0x1100 /path/to/a.gsym

To convert a mach-o or ELF file, including any DWARF debug info contained within the object files:

llvm-gsymutil --convert /path/to/a.out --out-file /path/to/a.out.gsym

Conversion highlights:
- convert DWARF debug info in mach-o or ELF files to GSYM
- convert symbols in symbol table to GSYM and don't convert symbols that overlap with DWARF debug info
- extract UUID from object files
- extract .text (read + execute) section address ranges and filter out any DWARF or symbols that don't fall in those ranges.
- if .text sections are extracted, and if the last gsym::FunctionInfo object has no size, cap the size to the end of the section the function was contained in

Dumping GSYM files will dump all sections of the GSYM file in textual format.

Reviewers: labath, aadsm, serhiy.redko, jankratochvil, xiaobai, wallace, aprantl, JDevlieghere, jdoerfert

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74883
2020-02-25 21:11:05 -08:00