mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-10-31 22:48:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

signal: ucontext and a fix

Browse Source
This commit is contained in:
Matheus
2024-12-25 20:23:32 -03:00
parent 643876b911
commit 936180e228
4 changed files with 92 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel-src/sys/signal.c
+5 -2
View File
@@ -423,7 +423,7 @@ void signal_signalproc(struct proc_t *proc, int signal) {
}
// returns true if should retry check
bool signal_check(struct thread_t *thread, context_t *context, bool syscall, uint64_t syscallret, uint64_t syscallerrno) {
bool signal_check(struct thread_t *thread, context_t *context, bool syscall, uint64_t syscallret, uint64_t syscallerrno, bool *need_context_switch) {
bool retry = false;
proc_t *proc = thread->proc;
@@ -563,6 +563,7 @@ bool signal_check(struct thread_t *thread, context_t *context, bool syscall, uin
}
memcpy(&sigframe.context, context, sizeof(context_t));
memcpy(&sigframe.extracontext, &thread->extracontext, sizeof(extracontext_t));
arch_sigframe_prepare_mcontext(&sigframe);
// TODO siginfo
if (usercopy_touser(stack, &sigframe, sizeof(sigframe_t))) {
@@ -591,11 +592,13 @@ bool signal_check(struct thread_t *thread, context_t *context, bool syscall, uin
CTX_SP(context) = (uint64_t)stack;
CTX_ARG0(context) = signal;
CTX_ARG1(context) = 0; // TODO pass siginfo
CTX_ARG2(context) = 0; // TODO ucontext
CTX_ARG2(context) = (uint64_t)ARCH_SIGFRAME_GET_UCONTEXT_POINTER((sigframe_t*)stack);
// reset handler if asked for
if (action->flags & SA_RESETHAND)
memset(action, 0, sizeof(sigaction_t));
*need_context_switch = true;
}
leave: