The master branch has been updated by Tom Tromey <tro...@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils- gdb.git;h=b1741ab0dafd899889faab6e862094a325a6b83c commit b1741ab0dafd899889faab6e862094a325a6b83c Author: Tom Tromey <t...@tromey.com> Date: Sat Mar 30 13:48:30 2024 -0600 libiberty: Invoke D demangler when --format=auto Investigating GDB PR d/31580 showed that the libiberty demangler doesn't automatically demangle D mangled names. However, I think it should -- like C++ and Rust (new-style), D mangled names are readily distinguished by the leading "_D", and so the likelihood of confusion is low. The other non-"auto" cases in this code are Ada (where the encoded form could more easily be confused by ordinary programs) and Java (which is long gone, but which also shared the C++ mangling and thus was just an output style preference). This patch also fixed another GDB bug, though of course that part won't apply to the GCC repository. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31580 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30276 libiberty * cplus-dem.c (cplus_demangle): Try the D demangler with "auto" format. * testsuite/d-demangle-expected: Add --format=auto test. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gdb in Ubuntu. https://bugs.launchpad.net/bugs/2059856 Title: gdb 10.0 fails to examine any global variables in D programs Status in gdb: Fix Released Status in gdb package in Ubuntu: New Bug description: [ Impact ] * GDB 10.0 introduced a regression where it cannot inspect any global variables in any D programs compiled by any D compiler. * LDC2 and GDC upstream stated Focal does not have such a problem and stuck to this release for their test images. [ Test Plan ] Considering the following D program: ``` module t; class uv { int i; } __gshared uv i; int main() { i = new uv(); return 0; // #break } ``` If you build it using `gdc -g -O0 t.d -o t` or `ldc2 -o t.o t.d -g`, run the GDB using the following commands ... ``` b t.d:10 p t.i ``` ... you will notice GDB will complain that "'t.i' has unknown type; cast it to its declared type." [ Where problems could occur ] * The fix consists of a single line change to the demangler. The worst-case scenario would be breaking the demangling functionality of other programming languages. However, the newer D ABI uses a symbol mangling scheme that is very difficult to confuse with other programming languages. * Incorrect symbol de-mangling may also cause user confusion. However, the patch fixed a fundamental usability issue. [ Other Info ] * Initial discussion in the LDC2 bug tracker: https://github.com/ldc-developers/ldc/issues/4389 To manage notifications about this bug go to: https://bugs.launchpad.net/gdb/+bug/2059856/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
