posix signals support, 1st pass

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1623 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-10-23 17:31:10 +00:00
parent 54d6a27c67
commit f510e6ce60
24 changed files with 789 additions and 196 deletions
@@ -18,6 +18,10 @@ void arch_thread_switch_kstack_and_call(struct thread *t, addr new_kstack, void
 //struct thread *arch_thread_get_current_thread(void);
 //void arch_thread_set_current_thread(struct thread *t);

+void arch_setup_signal_frame(struct thread *t, struct sigaction *sa, int sig, int sig_mask);
+int64 arch_restore_signal_frame(void);
+void arch_check_syscall_restart(struct thread *t);
+
 // for any inline overrides
 #include <arch_thread.h>

@@ -95,6 +95,8 @@ struct iframe {
 	unsigned int edx;
 	unsigned int ecx;
 	unsigned int eax;
+	unsigned int orig_eax;
+	unsigned int orig_edx;
 	unsigned int vector;
 	unsigned int error_code;
 	unsigned int eip;
@@ -112,6 +114,10 @@ void i386_enter_uspace(addr entry, void *args, addr ustack_top);
 void i386_set_kstack(addr kstack);
 void i386_switch_stack_and_call(addr stack, void (*func)(void *), void *arg);
 void i386_swap_pgdir(addr new_pgdir);
+void i386_fsave(void *fpu_state);
+void i386_fxsave(void *fpu_state);
+void i386_frstor(void *fpu_state);
+void i386_fxrstor(void *fpu_state);
 void i386_fsave_swap(void *old_fpu_state, void *new_fpu_state);
 void i386_fxsave_swap(void *old_fpu_state, void *new_fpu_state);

@@ -15,6 +15,9 @@ extern "C" {
 void i386_push_iframe(struct thread *t, struct iframe *frame);
 void i386_pop_iframe(struct thread *t);

+void i386_return_from_signal();
+void i386_end_return_from_signal();
+

 static
 inline struct thread *
@@ -18,6 +18,7 @@ struct arch_thread {
 	struct farcall interrupt_stack;

 	// used to track interrupts on this thread
+	struct iframe *current_iframe;
 	struct iframe *iframes[IFRAME_TRACE_DEPTH];
 	int iframe_ptr;