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windows: use ArbitraryUserPointer as TLS slot

Browse Source 
R=hectorchu, alex.brainman
CC=golang-dev
https://golang.org/cl/5519054
This commit is contained in:
Wei Guangjing 2012-01-09 11:23:07 +11:00 committed by Alex Brainman
parent 0448ce13a0
commit 9569c67a6b
7 changed files with 23 additions and 23 deletions
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8
src/cmd/6l/pass.c
View File

@ -276,7 +276,7 @@ patch(void)
// Convert
// op n(GS), reg
// to
// MOVL 0x58(GS), reg
// MOVL 0x28(GS), reg
// op n(reg), reg
// The purpose of this patch is to fix some accesses
// to extern register variables (TLS) on Windows, as
@ -291,7 +291,7 @@ patch(void)
q->as = p->as;
p->as = AMOVQ;
p->from.type = D_INDIR+D_GS;
p->from.offset = 0x58;
p->from.offset = 0x28;
}
}
if(HEADTYPE == Hlinux || HEADTYPE == Hfreebsd
@ -428,11 +428,11 @@ dostkoff(void)
p->from.offset = tlsoffset+0;
p->to.type = D_CX;
if(HEADTYPE == Hwindows) {
// movq %gs:0x58, %rcx
// movq %gs:0x28, %rcx
// movq (%rcx), %rcx
p->as = AMOVQ;
p->from.type = D_INDIR+D_GS;
p->from.offset = 0x58;
p->from.offset = 0x28;
p->to.type = D_CX;

6
src/cmd/8l/pass.c
View File

@ -259,7 +259,7 @@ patch(void)
// Convert
// op n(GS), reg
// to
// MOVL 0x2C(FS), reg
// MOVL 0x14(FS), reg
// op n(reg), reg
// The purpose of this patch is to fix some accesses
// to extern register variables (TLS) on Windows, as
@ -273,7 +273,7 @@ patch(void)
q->as = p->as;
p->as = AMOVL;
p->from.type = D_INDIR+D_FS;
p->from.offset = 0x2C;
p->from.offset = 0x14;
}
}
if(HEADTYPE == Hlinux) {
@ -424,7 +424,7 @@ dostkoff(void)
case Hwindows:
p->as = AMOVL;
p->from.type = D_INDIR+D_FS;
p->from.offset = 0x2c;
p->from.offset = 0x14;
p->to.type = D_CX;
p = appendp(p);

4
src/pkg/runtime/cgo/gcc_windows_386.c
View File

@ -45,8 +45,8 @@ threadentry(void *v)
*/
tls0 = (void*)LocalAlloc(LPTR, 32);
asm volatile (
"movl %0, %%fs:0x2c\n" // MOVL tls0, 0x2c(FS)
"movl %%fs:0x2c, %%eax\n" // MOVL 0x2c(FS), tmp
"movl %0, %%fs:0x14\n" // MOVL tls0, 0x14(FS)
"movl %%fs:0x14, %%eax\n" // MOVL 0x14(FS), tmp
"movl %1, 0(%%eax)\n" // MOVL g, 0(FS)
"movl %2, 4(%%eax)\n" // MOVL m, 4(FS)
:: "r"(tls0), "r"(ts.g), "r"(ts.m) : "%eax"

4
src/pkg/runtime/cgo/gcc_windows_amd64.c
View File

@ -45,8 +45,8 @@ threadentry(void *v)
*/
tls0 = (void*)LocalAlloc(LPTR, 64);
asm volatile (
"movq %0, %%gs:0x58\n" // MOVL tls0, 0x58(GS)
"movq %%gs:0x58, %%rax\n" // MOVQ 0x58(GS), tmp
"movq %0, %%gs:0x28\n" // MOVL tls0, 0x28(GS)
"movq %%gs:0x28, %%rax\n" // MOVQ 0x28(GS), tmp
"movq %1, 0(%%rax)\n" // MOVQ g, 0(GS)
"movq %2, 8(%%rax)\n" // MOVQ m, 8(GS)
:: "r"(tls0), "r"(ts.g), "r"(ts.m) : "%rax"

4
src/pkg/runtime/mkasmh.sh
View File

@ -38,7 +38,7 @@ case "$GOARCH" in
# ../../libcgo/darwin_386.c:/^threadentry
case "$GOOS" in
windows)
echo '#define get_tls(r) MOVL 0x2c(FS), r'
echo '#define get_tls(r) MOVL 0x14(FS), r'
echo '#define g(r) 0(r)'
echo '#define m(r) 4(r)'
;;
@ -82,7 +82,7 @@ case "$GOARCH" in
amd64)
case "$GOOS" in
windows)
echo '#define get_tls(r) MOVQ 0x58(GS), r'
echo '#define get_tls(r) MOVQ 0x28(GS), r'
echo '#define g(r) 0(r)'
echo '#define m(r) 8(r)'
;;

10
src/pkg/runtime/sys_windows_386.s
View File

@ -98,7 +98,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
PUSHL BX
PUSHL SI
PUSHL DI
PUSHL 0x2c(FS)
PUSHL 0x14(FS)
MOVL SP, DX
// setup dummy m, g
@ -108,7 +108,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
CALL runtime·memclr(SB) // smashes AX,BX,CX
LEAL m_tls(SP), CX
MOVL CX, 0x2c(FS)
MOVL CX, 0x14(FS)
MOVL SP, m(CX)
MOVL SP, BX
SUBL $g_end, SP // space for G
@ -129,7 +129,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
get_tls(CX)
MOVL g(CX), CX
MOVL g_stackbase(CX), SP
POPL 0x2c(FS)
POPL 0x14(FS)
POPL DI
POPL SI
POPL BX
@ -208,7 +208,7 @@ TEXT runtime·tstart(SB),7,$0
// Set up tls.
LEAL m_tls(CX), SI
MOVL SI, 0x2c(FS)
MOVL SI, 0x14(FS)
MOVL CX, m(SI)
MOVL DX, g(SI)
@ -246,5 +246,5 @@ TEXT runtime·tstart_stdcall(SB),7,$0
// setldt(int entry, int address, int limit)
TEXT runtime·setldt(SB),7,$0
MOVL address+4(FP), CX
MOVL CX, 0x2c(FS)
MOVL CX, 0x14(FS)
RET

10
src/pkg/runtime/sys_windows_amd64.s
View File

@ -121,7 +121,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
PUSHQ BX
PUSHQ SI
PUSHQ DI
PUSHQ 0x58(GS)
PUSHQ 0x28(GS)
MOVQ SP, DX
// setup dummy m, g
@ -131,7 +131,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
CALL runtime·memclr(SB) // smashes AX,BX,CX
LEAQ m_tls(SP), CX
MOVQ CX, 0x58(GS)
MOVQ CX, 0x28(GS)
MOVQ SP, m(CX)
MOVQ SP, BX
SUBQ $g_end, SP // space for G
@ -152,7 +152,7 @@ TEXT runtime·externalthreadhandler(SB),7,$0
get_tls(CX)
MOVQ g(CX), CX
MOVQ g_stackbase(CX), SP
POPQ 0x58(GS)
POPQ 0x28(GS)
POPQ DI
POPQ SI
POPQ BX
@ -254,7 +254,7 @@ TEXT runtime·tstart_stdcall(SB),7,$0
// Set up tls.
LEAQ m_tls(CX), SI
MOVQ SI, 0x58(GS)
MOVQ SI, 0x28(GS)
MOVQ CX, m(SI)
MOVQ DX, g(SI)
@ -276,5 +276,5 @@ TEXT runtime·notok(SB),7,$0
// set tls base to DI
TEXT runtime·settls(SB),7,$0
CALL runtime·setstacklimits(SB)
MOVQ DI, 0x58(GS)
MOVQ DI, 0x28(GS)
RET