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Commit 8cea1bf1 authored by Joel Sing's avatar Joel Sing
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runtime: update openbsd thread related syscalls to match kernel 

Update the threxit and thrsleep syscalls to match the ABI of the
OpenBSD 5.1 kernel. These changes are backwards compatible with
older kernels.

Fixes #3311.

R=golang-dev, rsc, devon.odell
CC=golang-dev
https://golang.org/cl/5777079
parent d7bc644b
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Inline Side-by-side
Showing with 33 additions and 28 deletions
src/pkg/runtime/sys_openbsd_386.s
View file @ 8cea1bf1
......@@ -12,14 +12,16 @@
TEXT runtime·exit(SB),7,$-4
MOVL $1, AX
INT $0x80
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·exit1(SB),7,$-4
MOVL $302, AX // sys_threxit
TEXT runtime·exit1(SB),7,$8
MOVL $0, 0(SP)
MOVL $0, 4(SP) // arg 1 - notdead
MOVL $302, AX // sys___threxit
INT $0x80
JAE 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·write(SB),7,$-4
......@@ -79,7 +81,7 @@ TEXT runtime·munmap(SB),7,$-4
MOVL $73, AX // sys_munmap
INT $0x80
JAE 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·setitimer(SB),7,$-4
......@@ -132,14 +134,14 @@ TEXT runtime·sigaction(SB),7,$-4
MOVL $46, AX // sys_sigaction
INT $0x80
JAE 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·sigprocmask(SB),7,$-4
MOVL $48, AX // sys_sigprocmask
INT $0x80
JAE 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
MOVL AX, oset+0(FP)
RET
......@@ -182,7 +184,7 @@ TEXT runtime·sigtramp(SB),7,$44
MOVL AX, 4(SP) // arg 1 - sigcontext
MOVL $103, AX // sys_sigreturn
INT $0x80
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
// int32 rfork_thread(int32 flags, void *stack, M *m, G *g, void (*fn)(void));
......@@ -294,7 +296,7 @@ TEXT runtime·settls(SB),7,$16
MOVL $165, AX // sys_sysarch
INT $0x80
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·osyield(SB),7,$-4
......@@ -303,12 +305,12 @@ TEXT runtime·osyield(SB),7,$-4
RET
TEXT runtime·thrsleep(SB),7,$-4
MOVL $300, AX // sys_thrsleep
MOVL $300, AX // sys___thrsleep
INT $0x80
RET
TEXT runtime·thrwakeup(SB),7,$-4
MOVL $301, AX // sys_thrwakeup
MOVL $301, AX // sys___thrwakeup
INT $0x80
RET
......
src/pkg/runtime/sys_openbsd_amd64.s
View file @ 8cea1bf1
......@@ -53,7 +53,8 @@ TEXT runtime·rfork_thread(SB),7,$0
CALL R12
// It shouldn't return. If it does, exit
MOVL $302, AX // sys_threxit
MOVQ $0, DI // arg 1 - notdead
MOVL $302, AX // sys___threxit
SYSCALL
JMP -3(PC) // keep exiting
......@@ -67,14 +68,15 @@ TEXT runtime·thrsleep(SB),7,$0
MOVL 16(SP), SI // arg 2 - clock_id
MOVQ 24(SP), DX // arg 3 - tp
MOVQ 32(SP), R10 // arg 4 - lock
MOVL $300, AX // sys_thrsleep
MOVQ 40(SP), R8 // arg 5 - abort
MOVL $300, AX // sys___thrsleep
SYSCALL
RET
TEXT runtime·thrwakeup(SB),7,$0
MOVQ 8(SP), DI // arg 1 - ident
MOVL 16(SP), SI // arg 2 - n
MOVL $301, AX // sys_thrwakeup
MOVL $301, AX // sys___thrwakeup
SYSCALL
RET
......@@ -83,13 +85,14 @@ TEXT runtime·exit(SB),7,$-8
MOVL 8(SP), DI // arg 1 - exit status
MOVL $1, AX // sys_exit
SYSCALL
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·exit1(SB),7,$-8
MOVL $302, AX // sys_threxit
MOVQ $0, DI // arg 1 - notdead
MOVL $302, AX // sys___threxit
SYSCALL
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·write(SB),7,$-8
......@@ -140,7 +143,7 @@ TEXT time·now(SB), 7, $32
MOVL $116, AX // sys_gettimeofday
SYSCALL
MOVQ 8(SP), AX // sec
MOVL 16(SP), DX // usec
MOVL 16(SP), DX // usec
// sec is in AX, usec in DX
MOVQ AX, sec+0(FP)
......@@ -154,7 +157,7 @@ TEXT runtime·nanotime(SB),7,$32
MOVL $116, AX // sys_gettimeofday
SYSCALL
MOVQ 8(SP), AX // sec
MOVL 16(SP), DX // usec
MOVL 16(SP), DX // usec
// sec is in AX, usec in DX
// return nsec in AX
......@@ -170,7 +173,7 @@ TEXT runtime·sigaction(SB),7,$-8
MOVL $46, AX
SYSCALL
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·sigprocmask(SB),7,$0
......@@ -179,7 +182,7 @@ TEXT runtime·sigprocmask(SB),7,$0
MOVL $48, AX // sys_sigprocmask
SYSCALL
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
MOVL AX, oset+0(FP) // Return oset
RET
......@@ -236,7 +239,7 @@ TEXT runtime·munmap(SB),7,$0
MOVL $73, AX // sys_munmap
SYSCALL
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·sigaltstack(SB),7,$-8
......@@ -245,7 +248,7 @@ TEXT runtime·sigaltstack(SB),7,$-8
MOVQ $288, AX // sys_sigaltstack
SYSCALL
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
// set tls base to DI
......@@ -258,7 +261,7 @@ TEXT runtime·settls(SB),7,$8
MOVQ $165, AX // sys_sysarch
SYSCALL
JCC 2(PC)
MOVL $0xf1, 0xf1 // crash
MOVL $0xf1, 0xf1 // crash
RET
TEXT runtime·sysctl(SB),7,$0
......@@ -270,7 +273,7 @@ TEXT runtime·sysctl(SB),7,$0
MOVQ 48(SP), R9 // arg 6 - newlen
MOVQ $202, AX // sys___sysctl
SYSCALL
JCC 3(PC)
JCC 3(PC)
NEGL AX
RET
MOVL $0, AX
......
src/pkg/runtime/thread_openbsd.c
View file @ 8cea1bf1
......@@ -24,7 +24,7 @@ static Sigset sigset_all = ~(Sigset)0;
static Sigset sigset_none;
extern int64 runtime·rfork_thread(int32 flags, void *stack, M *m, G *g, void (*fn)(void));
extern int32 runtime·thrsleep(void *ident, int32 clock_id, void *tsp, void *lock);
extern int32 runtime·thrsleep(void *ident, int32 clock_id, void *tsp, void *lock, const int32 *abort);
extern int32 runtime·thrwakeup(void *ident, int32 n);
// From OpenBSD's <sys/sysctl.h>
......@@ -72,12 +72,12 @@ runtime·semasleep(int64 ns)
// sleep until semaphore != 0 or timeout.
// thrsleep unlocks m->waitsemalock.
if(ns < 0)
runtime·thrsleep(&m->waitsemacount, 0, nil, &m->waitsemalock);
runtime·thrsleep(&m->waitsemacount, 0, nil, &m->waitsemalock, nil);
else {
ns += runtime·nanotime();
ts.tv_sec = ns/1000000000LL;
ts.tv_nsec = ns%1000000000LL;
runtime·thrsleep(&m->waitsemacount, CLOCK_REALTIME, &ts, &m->waitsemalock);
runtime·thrsleep(&m->waitsemacount, CLOCK_REALTIME, &ts, &m->waitsemalock, nil);
}
// reacquire lock
while(runtime·xchg(&m->waitsemalock, 1))
......
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