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Make a better guess to find the top of the initial stack.

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Fixed FreeBSD compile problem (thanks to Gerald Pfeiffer).
This commit is contained in:
Ulrich Weigand 2000-06-08 00:39:59 +00:00 committed by Alexandre Julliard
parent b4c68726d9
commit 06bf01768d
1 changed files with 11 additions and 4 deletions
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15
scheduler/sysdeps.c
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@ -16,6 +16,7 @@ static int *ph_errno = &h_errno;
#include <signal.h> #include <signal.h>
#include <stdio.h> #include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h> #include <sys/resource.h>
#ifdef HAVE_SYS_SYSCALL_H #ifdef HAVE_SYS_SYSCALL_H
# include <sys/syscall.h> # include <sys/syscall.h>
@ -31,6 +32,7 @@ static int *ph_errno = &h_errno;
#include "selectors.h" #include "selectors.h"
#include "server.h" #include "server.h"
#include "winbase.h" #include "winbase.h"
#include "global.h"
#include "wine/exception.h" #include "wine/exception.h"
#include "debugtools.h" #include "debugtools.h"
@ -225,8 +227,7 @@ void SYSDEPS_ExitThread( int status )
/*********************************************************************** /***********************************************************************
* SYSDEPS_CallOnStack * SYSDEPS_CallOnStack
*/ */
static int SYSDEPS_DoCallOnStack( int (*func)(LPVOID), LPVOID arg ) WINE_UNUSED; int SYSDEPS_DoCallOnStack( int (*func)(LPVOID), LPVOID arg )
static int SYSDEPS_DoCallOnStack( int (*func)(LPVOID), LPVOID arg )
{ {
int retv = 0; int retv = 0;
@ -281,6 +282,9 @@ static LPVOID SYSDEPS_LargeStackLow = NULL;
void SYSDEPS_SwitchToThreadStack( void (*func)(void) ) void SYSDEPS_SwitchToThreadStack( void (*func)(void) )
{ {
DWORD page_size = VIRTUAL_GetPageSize();
DWORD cur_stack = (((DWORD)&func) + (page_size-1)) & ~(page_size-1);
TEB *teb = NtCurrentTeb(); TEB *teb = NtCurrentTeb();
LPVOID stackTop = teb->stack_top; LPVOID stackTop = teb->stack_top;
LPVOID stackLow = teb->stack_low; LPVOID stackLow = teb->stack_low;
@ -293,8 +297,11 @@ void SYSDEPS_SwitchToThreadStack( void (*func)(void) )
rl.rlim_cur = 8*1024*1024; rl.rlim_cur = 8*1024*1024;
} }
SYSDEPS_LargeStackTop = teb->stack_top = &func - 128; teb->stack_top = (LPVOID) cur_stack;
SYSDEPS_LargeStackLow = teb->stack_low = teb->stack_top - rl.rlim_cur; teb->stack_low = (LPVOID)(cur_stack - rl.rlim_cur);
SYSDEPS_LargeStackTop = (LPVOID)(cur_stack - 2*page_size);
SYSDEPS_LargeStackLow = (LPVOID)(cur_stack - rl.rlim_cur);
SYSDEPS_CallOnStack( stackTop, stackLow, SYSDEPS_CallOnStack( stackTop, stackLow,
(int (*)(void *))func, NULL ); (int (*)(void *))func, NULL );