9vx/OSX: must wait until after fork to install sigaltstack - vx32 - Local 9vx git repository for patches.
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---
(DIR) commit 11ae6de94d664cb94d39a00e98031e1c5e134c21
(DIR) parent 7414e9996dc38431669b1da77013891e3f8940d6
(HTM) Author: Russ Cox <rsc@swtch.com>
Date: Sat, 28 Jun 2008 11:40:50 -0400
9vx/OSX: must wait until after fork to install sigaltstack
Diffstat:
src/9vx/main.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
---
(DIR) diff --git a/src/9vx/main.c b/src/9vx/main.c
@@ -48,6 +48,8 @@ extern int tracekdev;
static int singlethread;
static void bootinit(void);
+static void siginit(void);
+
static char* getuser(void);
static char* findroot(void);
@@ -154,6 +156,12 @@ main(int argc, char **argv)
_exit(0);
/*
+ * Have to do this after fork; on OS X child does
+ * not inherit sigaltstack.
+ */
+ siginit();
+
+ /*
* Debugging: tell user what options we guessed.
*/
print("9vx %s-r %s -u %s\n", usetty ? "-t " : "", localroot, username);
@@ -642,12 +650,21 @@ setsigsegv(int vx32)
void
mach0init(void)
{
- struct sigaction act;
-
#ifndef TLS
machkeyinit();
#endif
+ conf.nmach = 1;
+ machinit(); /* common per-processor init */
+ active.machs = 1;
+ active.exiting = 0;
+}
+
+static void
+siginit(void)
+{
+ struct sigaction act;
+
/* Install vx32signal handlers ... */
vx32_siginit();
@@ -660,10 +677,6 @@ mach0init(void)
sigaction(SIGUSR1, &act, nil);
sigaction(SIGURG, &act, nil);
- conf.nmach = 1;
- machinit(); /* common per-processor init */
- active.machs = 1;
- active.exiting = 0;
}
void