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Christoph Reiter
3ea87a506e
Calling `winget.exe` through its app execution alias from an interactive MSYS2 shell can leave the shell hanging after `winget.exe` exits. This affects all app execution aliases, not only `winget.exe`. App execution alias handling was introduced in0631c6644e(Cygwin: Treat Windows Store's "app execution aliases" as symbolic links, 2021-03-22), and6c3d26961d(Cygwin: termios: Handle app execution alias in is_console_app(), 2025-12-10) taught `is_console_app()` to follow aliases using another `path_conv`, which allocates cygheap memory. 618eb90fc2 (Cygwin: console: Fix undesired mode change at exit of non-cygwin apps, 2026-09-19) added a second `is_console_app()` call from `wait_for_resume_if_necessary()`. Unfortunately, at that point, `child_info_spawn::worker()` already holds the non-recursive `cygheap_protect`, so following an alias tries to acquire the same lock recursively and deadlocks. Let's avoid running `is_console_app()` under that lock by instead classifying the executable _once_, in `spawn_worker::setup()`, before acquiring the cygheap lock, then cache and reuse the result for both PTY setup and the post-resume wait. Addresses: https://github.com/msys2/msys2-runtime/issues/372 Fixes: 618eb90fc2 (Cygwin: console: Fix undesired mode change at exit of non-cygwin apps, 2026-09-19) Signed-off-by: Christoph Reiter <reiter.christoph@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.