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runtime: fix new scheduler on freebsd, windows

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R=devon.odell
CC=golang-dev
https://golang.org/cl/7443046
This commit is contained in:
Russ Cox 2013-03-01 08:30:11 -05:00
parent 8d732368c2
commit c5f694a5c9
13 changed files with 45 additions and 17 deletions
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4
src/pkg/runtime/runtime.h
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@ -52,7 +52,7 @@ typedef struct G G;
typedef struct Gobuf Gobuf;
typedef union Lock Lock;
typedef struct M M;
typedef struct P P;
typedef struct P P;
typedef struct Mem Mem;
typedef union Note Note;
typedef struct Slice Slice;
@ -265,7 +265,7 @@ struct M
uintptr cret; // return value from C
uint64 procid; // for debuggers, but offset not hard-coded
G* gsignal; // signal-handling G
uint32 tls[8]; // thread-local storage (for 386 extern register)
uint64 tls[4]; // thread-local storage (for x86 extern register)
G* curg; // current running goroutine
P* p; // attached P for executing Go code (nil if not executing Go code)
P* nextp;

7
src/pkg/runtime/sys_freebsd_386.s
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@ -38,7 +38,12 @@ TEXT runtime·thr_start(SB),7,$0
MOVL AX, m(CX)
CALL runtime·stackcheck(SB) // smashes AX
CALL runtime·mstart(SB)
// newosproc left the function we should call in mp->tls[2] for us.
get_tls(CX)
MOVQ 8(CX), AX
CALL AX
MOVL 0, AX // crash (not reached)
// Exit the entire program (like C exit)

8
src/pkg/runtime/sys_freebsd_amd64.s
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@ -34,12 +34,18 @@ TEXT runtime·thr_start(SB),7,$0
// set up m, g
get_tls(CX)
MOVQ 8(CX), AX
MOVQ R13, m(CX)
MOVQ m_g0(R13), DI
MOVQ DI, g(CX)
CALL runtime·stackcheck(SB)
CALL runtime·mstart(SB)
// newosproc left the function we should call in mp->tls[2] for us.
get_tls(CX)
MOVQ 16(CX), AX
CALL AX
MOVQ 0, AX // crash (not reached)
// Exit the entire program (like C exit)

6
src/pkg/runtime/sys_freebsd_arm.s
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@ -33,7 +33,11 @@ TEXT runtime·thr_start(SB),7,$0
// set up g
MOVW m_g0(R9), R10
BL runtime·emptyfunc(SB) // fault if stack check is wrong
BL runtime·mstart(SB)
// newosproc left the function we should call in mp->tls[2] for us.
MOVW (m_tls+8)(m), R0
BL (R0)
MOVW $2, R9 // crash (not reached)
MOVW R9, (R9)
RET

5
src/pkg/runtime/sys_windows_386.s
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@ -260,7 +260,10 @@ TEXT runtime·tstart(SB),7,$0
CALL runtime·stackcheck(SB) // clobbers AX,CX
CALL runtime·mstart(SB)
// start function is in tls[2]
get_tls(CX)
MOVL 8(CX), AX
CALL AX
RET

6
src/pkg/runtime/sys_windows_amd64.s
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@ -329,7 +329,11 @@ TEXT runtime·tstart_stdcall(SB),7,$0
CLD
CALL runtime·stackcheck(SB) // clobbers AX,CX
CALL runtime·mstart(SB)
// start function is in tls[2]
get_tls(CX)
MOVQ 16(CX), AX
CALL AX
XORL AX, AX // return 0 == success
RET

2
src/pkg/runtime/thread_darwin.c
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@ -95,7 +95,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
mp->tls[0] = mp->id; // so 386 asm can find it
if(0){
runtime·printf("newosproc stk=%p m=%p g=%p fn=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, mp->id, (int32)mp->tls[0], &mp);
}
runtime·sigprocmask(SIG_SETMASK, &sigset_all, &oset);

8
src/pkg/runtime/thread_freebsd.c
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@ -82,12 +82,13 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
ThrParam param;
Sigset oset;
USED(fn); // thr_start assumes fn == mstart
USED(gp); // thr_start assumes gp == mp->g0
// thr_start assumes gp == mp->g0
if(gp != mp->g0)
runtime·throw("invalid newosproc gp");
if(0){
runtime·printf("newosproc stk=%p m=%p g=%p fn=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, mp->id, (int32)mp->tls[0], &mp);
}
runtime·sigprocmask(&sigset_all, &oset);
@ -103,6 +104,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
param.tls_size = sizeof mp->tls;
mp->tls[0] = mp->id; // so 386 asm can find it
mp->tls[2] = (uintptr)fn;
runtime·thr_new(&param, sizeof param);
runtime·sigprocmask(&oset, nil);

2
src/pkg/runtime/thread_linux.c
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@ -143,7 +143,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
mp->tls[0] = mp->id; // so 386 asm can find it
if(0){
runtime·printf("newosproc stk=%p m=%p g=%p fn=%p clone=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, runtime·clone, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, runtime·clone, mp->id, (int32)mp->tls[0], &mp);
}
// Disable signals during clone, so that the new thread starts

2
src/pkg/runtime/thread_netbsd.c
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@ -153,7 +153,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
if(0) {
runtime·printf(
"newosproc stk=%p m=%p g=%p fn=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, mp->id, (int32)mp->tls[0], &mp);
}
mp->tls[0] = mp->id; // so 386 asm can find it

2
src/pkg/runtime/thread_openbsd.c
View File

@ -132,7 +132,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
if(0) {
runtime·printf(
"newosproc stk=%p m=%p g=%p fn=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, mp->id, (int32)mp->tls[0], &mp);
}
mp->tls[0] = mp->id; // so 386 asm can find it

2
src/pkg/runtime/thread_plan9.c
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@ -228,7 +228,7 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
mp->tls[0] = mp->id; // so 386 asm can find it
if(0){
runtime·printf("newosproc stk=%p m=%p g=%p fn=%p rfork=%p id=%d/%d ostk=%p\n",
stk, mp, gp, fn, runtime·rfork, mp->id, mp->tls[0], &mp);
stk, mp, gp, fn, runtime·rfork, mp->id, (int32)mp->tls[0], &mp);
}
if(runtime·rfork(RFPROC|RFMEM|RFNOWAIT, stk, mp, gp, fn) < 0)

8
src/pkg/runtime/thread_windows.c
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@ -192,8 +192,12 @@ runtime·newosproc(M *mp, G *gp, void *stk, void (*fn)(void))
void *thandle;
USED(stk);
USED(gp); // assuming gp = mp->g0
USED(fn); // assuming fn = mstart
// assume gp == mp->g0
if(gp != mp->g0)
runtime·throw("invalid newosproc gp");
mp->tls[2] = (uintptr)fn;
thandle = runtime·stdcall(runtime·CreateThread, 6,
nil, (uintptr)0x20000, runtime·tstart_stdcall, mp,