jyapayne/musl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix rsyscall handler: must not clobber errno from signal context

Browse source
This commit is contained in:
Rich Felker 2011-04-06 19:46:46 -04:00
commit 622804ece7
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/thread/pthread_create.c
View file

@ -89,6 +89,7 @@ static struct {
static void rsyscall_handler(int sig, siginfo_t *si, void *ctx)
{
struct pthread *self = __pthread_self();
long r;
if (!rs.hold || rs.cnt == libc.threads_minus_1) return;
@ -99,8 +100,9 @@ static void rsyscall_handler(int sig, siginfo_t *si, void *ctx)
return;
}
if (syscall(rs.nr, rs.arg[0], rs.arg[1], rs.arg[2],
rs.arg[3], rs.arg[4], rs.arg[5]) < 0 && !rs.err) rs.err=errno;
r = __syscall(rs.nr, rs.arg[0], rs.arg[1],
rs.arg[2], rs.arg[3], rs.arg[4], rs.arg[5]);
if (r < 0) rs.err=-r;
a_inc(&rs.cnt);
__wake(&rs.cnt, 1, 1);