Gdb Dwarf Support

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GDB: The GNU Project Debugger

    http://www.gnu.org/software/gdb/
    DWARF index cache: GDB can now automatically save indices of DWARF symbols on disk to speed up further loading of the same binaries. Various GDB/MI enhancements. GDBserver on PowerPC GNU/Linux now supports access to the PPR, DSCR, TAR, EBB/PMU, and HTM registers.

Debugging with GDB: Debugging Output

    https://sourceware.org/gdb/onlinedocs/gdb/Debugging-Output.html
    Check the results of the “physname” computation. When reading DWARF debugging information for C++, GDB attempts to compute each entity’s name. GDB can do this computation in two different ways, depending on exactly what information is present. When enabled, this setting causes GDB to compute the names both ways and display any discrepancies.

Debugging Support in Rust Compiler - Guide to Rustc ...

    https://rust-lang.github.io/rustc-guide/debugging-support-in-rustc.html
    GDB and LLDB, however, can be extended to support debugging a language. This is the path that Rust has chosen. This document's main goal is to document the said debuggers support in Rust compiler. DWARF. According to the DWARF standard website. DWARF is a debugging file format used by many compilers and debuggers to support source level debugging.

Using the GNU Compiler Collection (GCC): Debugging Options

    http://gcc.gnu.org/onlinedocs/gcc/Debugging-Options.html
    3.10 Options for Debugging Your Program. ... XCOFF, or DWARF). GDB can work with this debugging information. On most systems that use stabs format, ... But not all DWARF consumers support .debug_types sections yet and on some objects .debug_types produces larger instead of smaller debugging information.

DWARF FAQ - Dwarf Wiki

    http://wiki.dwarfstd.org/index.php?title=DWARF_FAQ
    Where can I find a reference of the Dwarf debugging symbols produced by a GCC compiler on various platforms? For information about how GCC or any other compiler implements DWARF, please contact the developer or distributor for that compiler. Does visual studio .net support the DWARF debugging standard? What's the best C* DWARF WRITER (API) around?

How does gdb work? Hacker News

    https://news.ycombinator.com/item?id=12259715
    Aug 10, 2016 · Having written at least 4 complete DWARF readers and writers (GCC's location list support, GDB's expression evaluator, the thing that became google breakpad's debuginfo reader etc), it's really not that bad. In fact, compared to pretty much any other debug format, it's wonderful.

GDB: The GNU Project Debugger - sourceware.org

    https://sourceware.org/gdb/news/
    Petr Sorfa has contributed patches against GDB 5.1.1 that add support for FORTRAN 95. It even includes support for a location expression parser and support for many other DWARF[23] extensions. May 5, 2002: Macro Support. Jim Blandy has added support for C/C++ preprocessor macros to GDB.

LLVM on Windows now supports PDB Debug Info

    http://blog.llvm.org/2017/08/llvm-on-windows-now-supports-pdb-debug.html
    LLVM on Windows now supports PDB Debug Info. ... CodeView, like DWARF, defines a set of records that describe mappings between source lines and code addresses, as well as types and symbols that your program uses. ... How can we support incremental linking so that it doesn’t take a long time to re-generate debug info when only a small amount ...

Debugging with GDB: Maintenance Commands

    https://sourceware.org/gdb/onlinedocs/gdb/Maintenance-Commands.html
    Many targets that support DWARF debugging use GDB’s DWARF frame unwinders to build the backtrace. Many of these targets will also have a second mechanism for building the backtrace for use in cases where DWARF information is not available, this second mechanism is often an analysis of a function’s prologue.



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