https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=97a975dac2dee9640964f54fa9693f0295c2363c
commit 97a975dac2dee9640964f54fa9693f0295c2363c Author: Corinna Vinschen <[email protected]> AuthorDate: Tue Oct 31 13:07:36 2023 +0100 Commit: Corinna Vinschen <[email protected]> CommitDate: Tue Oct 31 13:29:15 2023 +0100 Cygwin: let feraiseexcept actually raise an exception The exception handling inside of Cygwin functions marked as SIGFE covers exceptions and lets the library code handle them gracefully. If these functions want to raise an exception, they have to send a signal explicitely via raise(3). That's not what we want in feraiseexcept(). It triggers a floating point exception explicitely by calling the i387 op "fwait". Being marked as SIGFE, this exception will be suppressed and the normal exception handling won't kick in. Fix this by moving feraiseexcept into the NOSIGFE realm. Fixes: 0f81b5d4bcaa ("* Makefile.in (DLL_OFILES): Add new fenv.o module.") Signed-off-by: Corinna Vinschen <[email protected]> Diff: --- winsup/cygwin/cygwin.din | 2 +- winsup/cygwin/release/3.4.10 | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din index be404263e605..c70380fe83fb 100644 --- a/winsup/cygwin/cygwin.din +++ b/winsup/cygwin/cygwin.din @@ -532,7 +532,7 @@ fegetround NOSIGFE feholdexcept SIGFE feof SIGFE feof_unlocked SIGFE -feraiseexcept SIGFE +feraiseexcept NOSIGFE ferror SIGFE ferror_unlocked SIGFE fesetenv SIGFE diff --git a/winsup/cygwin/release/3.4.10 b/winsup/cygwin/release/3.4.10 index c75283991461..ec28cdf7e791 100644 --- a/winsup/cygwin/release/3.4.10 +++ b/winsup/cygwin/release/3.4.10 @@ -6,3 +6,6 @@ Bug Fixes - Fix hang in process initialization if cwd is unreadable. Addresses: https://cygwin.com/pipermail/cygwin/2023-October/254604.html + +- Let feraiseexcept actually raise an exception. + Addresses: https://cygwin.com/pipermail/cygwin/2023-October/254667.html
