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newlib-cygwin/winsup/cygwin/release/3.4.4

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Cygwin: path_conv: make sure sym.path_flags is always initialized Commit c1023ee353705 introduced a split between mount flags and path flags. It didn't initialize symlink_info::path_flags in path_conv::check, because that's done in symlink_info::check. However, there are two code paths expecting symlink_info::path_flags being already initialized and both skip symlink_info::check. Make sure symlink_info::path_flags is initalized to 0 early in path_conv::check. Fixes: c1023ee353705 ("Cygwin: path_conv: decouple path_types from mount types") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-12-21 20:08:39 +08:00
Bug Fixes
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- Fix an uninitialized variable having weird side-effects in path handling.
Addresses: https://cygwin.com/pipermail/cygwin/2022-December/252734.html
Cygwin: console: Fix hangup of less on quit after the window is resized. https://cygwin.com/pipermail/cygwin/2022-December/252737.html If the less is started from non-cygwin shell and window size is changed, it will hang-up when quitting. The cause of the proglem is that less uses longjump() in signal handler. If the signal handler is called while cygwin is acquiring the mutex, cygwin loses the chance to release mutex. With this patch, the mutex is released just before calling kill_pgrp() and re-acquired when kill_pgrp() returns. Reported-by: Gregory Mason <grmason@epic.com> Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
2022-12-22 19:25:22 +08:00
- Fix hang-up of less on quit which occurs when it is started from non-cygwin
shell and window is resized.
Addresses: https://cygwin.com/pipermail/cygwin/2022-December/252737.html
Cygwin: reinstantiate exporting _alloca This basically reverts commit 1556b96b1b3b03112f271dfe30e043ed538354fd. Turns out that _alloca is actually used, for instance, by clang.
2023-01-09 20:35:32 +08:00
- Reinstantiate exporting _alloca.
Addresses: https://cygwin.com/pipermail/cygwin/2023-January/252797.html
Cygwin: /proc/<PID>/status: avoid crash computing signal info The code computing the mask of pending signals used the per-queued signal TLS pointer without checking it for NULL. Fix this by using the process-wide signal mask in that case. Fixes: 195169186bfd5 ("Cygwin: wait_sig: allow to compute process-wide mask of pending signals") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2023-01-10 18:45:28 +08:00
- Avoid hangs when reading /proc/<PID>/status.
Addresses: https://cygwin.com/pipermail/cygwin/2022-December/252756.html
Cygwin: /proc/cpuinfo: Always print topology info vmstat from proc-ps-4.0.x prints "Unable to create system stat structure" if the /proc/cpuinfo output fails to contain topology info. While Linux always prints topology info if the kernel has been built with CONFIG_SMP, Cygwin only prints topology info if the CPU is known to be multi-core (i. e., the HT feature flag is set). Fix that by printing topology info all the time, even for single-core CPUs. Fixes: e0d48debedfa ("Fix /proc/cpuinfo topology and cache size info") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2023-01-16 21:23:38 +08:00
- Fix vmstat(1) printing an error message on single core CPUs.
Addresses: https://cygwin.com/pipermail/cygwin/2023-January/252857.html
Cygwin: open_shared: try harder allocating a shared region For fixed regions (cygwin/user/myself/shared console), try fixed address first. Fallback to non-fixed region. Don't even try fixed address if the Cygwin DLL gets dynamically loaded. For non-fixed regions, try to allocate in a loop within the area from SHARED_REGIONS_ADDRESS_LOW to SHARED_REGIONS_ADDRESS_HIGH. Fixes: 60675f1a7eb2 ("Cygwin: decouple shared mem regions from Cygwin DLL") Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2023-01-17 17:18:51 +08:00
- Fix potential process termination during process initialization.
Most easily reproducible is the case of non-Cygwin processes running
with high-entropy VA enabled and loading the Cygwin DLL dynamically.
Addresses: https://cygwin.com/pipermail/cygwin/2023-January/252765.html
https://cygwin.com/pipermail/cygwin/2023-January/252865.html