diff options
| -rw-r--r-- | src/pal/src/exception/signal.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/pal/src/exception/signal.cpp b/src/pal/src/exception/signal.cpp index 458e331698..7f2e5c5b3d 100644 --- a/src/pal/src/exception/signal.cpp +++ b/src/pal/src/exception/signal.cpp @@ -199,6 +199,10 @@ Return : void FreeSignalAlternateStack() { stack_t ss, oss; + // The man page for sigaltstack says that when the ss.ss_flags is set to SS_DISABLE, + // all other ss fields are ignored. However, MUSL implementation checks that the + // ss_size is >= MINSIGSTKSZ even in this case. + ss.ss_size = MINSIGSTKSZ; ss.ss_flags = SS_DISABLE; int st = sigaltstack(&ss, &oss); if ((st == 0) && (oss.ss_flags != SS_DISABLE)) |