From: michi <none@none>
Date: Thu, 7 Jun 2007 11:05:01 +0000 (+0000)
Subject: * src/vm/jit/x86_64/linux/md-os.c (md_signal_handler_sigusr1): Implemented.
X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=commitdiff_plain;h=0e342fde4252e64af74380216b4979a9d4e9a8f7;p=cacao.git

* src/vm/jit/x86_64/linux/md-os.c (md_signal_handler_sigusr1): Implemented.

--HG--
branch : exact-gc
---

diff --git a/src/vm/jit/x86_64/linux/md-os.c b/src/vm/jit/x86_64/linux/md-os.c
index 4ddaac8ee..d0b063cd9 100644
--- a/src/vm/jit/x86_64/linux/md-os.c
+++ b/src/vm/jit/x86_64/linux/md-os.c
@@ -217,6 +217,36 @@ void md_signal_handler_sigfpe(int sig, siginfo_t *siginfo, void *_p)
 }
 
 
+/* md_signal_handler_sigusr1 ***************************************************
+
+   Signal handler for suspending threads.
+
+*******************************************************************************/
+
+#if defined(ENABLE_THREADS) && defined(ENABLE_GC_CACAO)
+void md_signal_handler_sigusr1(int sig, siginfo_t *siginfo, void *_p)
+{
+	ucontext_t *_uc;
+	mcontext_t *_mc;
+	u1         *pc;
+	u1         *sp;
+
+	_uc = (ucontext_t *) _p;
+	_mc = &_uc->uc_mcontext;
+
+	/* ATTENTION: Don't use CACAO's internal REG_* defines as they are
+	   different to the ones in <ucontext.h>. */
+
+	/* get the PC and SP for this thread */
+	pc = (u1 *) _mc->gregs[REG_RIP];
+	sp = (u1 *) _mc->gregs[REG_RSP];
+
+	/* now suspend the current thread */
+	threads_suspend_ack(pc, sp);
+}
+#endif
+
+
 /* md_signal_handler_sigusr2 ***************************************************
 
    Signal handler for profiling sampling.