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authorcinap_lenrek <cinap_lenrek@gmx.de>2013-03-11 18:57:22 +0100
committercinap_lenrek <cinap_lenrek@gmx.de>2013-03-11 18:57:22 +0100
commit25f04a68a168a948783618910e115316eb0ed3fc (patch)
treeb3cb88e49ef21b5855569918634937bdbf78b19e /sys/src/ape/lib/ap/plan9/_envsetup.c
parent34ec2056041a193a471701dd50e2032dc300fb0e (diff)
ape: threadsafe errno
store errno on the private process stack so its always per process and not just per memory space. errno itself becomes a macro dereferencing int *_errnoloc; which is initialized from main9.s pointing to the private stack location. various fixes in programs that just imported errno variable with "extern int errno;" instead of including <errno.h>.
Diffstat (limited to 'sys/src/ape/lib/ap/plan9/_envsetup.c')
-rw-r--r--sys/src/ape/lib/ap/plan9/_envsetup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/src/ape/lib/ap/plan9/_envsetup.c b/sys/src/ape/lib/ap/plan9/_envsetup.c
index 21d6be3f4..083a75d17 100644
--- a/sys/src/ape/lib/ap/plan9/_envsetup.c
+++ b/sys/src/ape/lib/ap/plan9/_envsetup.c
@@ -19,7 +19,7 @@
*/
char **environ;
-int errno;
+int *_errnoloc;
unsigned long _clock;
static void fdsetup(char *, char *);
static void sigsetup(char *, char *);