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ntdll: Switch back to the initial stack for thread exit on ARM. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-12-14 20:28:16 +01:00
parent f492efdb3c
commit d147c4c323
1 changed files with 15 additions and 3 deletions
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18
dlls/ntdll/signal_arm.c
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@ -1225,8 +1225,10 @@ extern void DECLSPEC_NORETURN start_thread( LPTHREAD_START_ROUTINE entry, void *
__ASM_GLOBAL_FUNC( start_thread,
".arm\n\t"
"push {r4-r12,lr}\n\t"
/* build initial context on thread stack */
/* store exit frame */
"ldr r4, [sp, #40]\n\t" /* teb */
"str sp, [r4, #0x1d4]\n\t" /* teb->SystemReserved2 */
/* build initial context on thread stack */
"ldr r4, [r4, #4]\n\t" /* teb->Tib.StackBase */
"sub r5, r4, #0x1a0\n\t" /* sizeof(CONTEXT) */
"mov ip, #0x0200000\n\t" /* CONTEXT_ARM */
@ -1246,6 +1248,16 @@ __ASM_GLOBAL_FUNC( start_thread,
"mov r0, r5\n\t"
"b " __ASM_NAME("set_cpu_context") )
extern void DECLSPEC_NORETURN call_thread_exit_func( int status, void (*func)(int), TEB *teb );
__ASM_GLOBAL_FUNC( call_thread_exit_func,
".arm\n\t"
"ldr r3, [r2, #0x1d4]\n\t" /* teb->SystemReserved2 */
"mov ip, #0\n\t"
"str ip, [r2, #0x1d4]\n\t"
"cmp r3, ip\n\t"
"movne sp, r3\n\t"
"blx r1" )
/***********************************************************************
* signal_start_thread
*
@ -1277,7 +1289,7 @@ void signal_start_process( LPTHREAD_START_ROUTINE entry, BOOL suspend )
*/
void signal_exit_thread( int status )
{
exit_thread( status );
call_thread_exit_func( status, exit_thread, NtCurrentTeb() );
}
/***********************************************************************
@ -1285,7 +1297,7 @@ void signal_exit_thread( int status )
*/
void signal_exit_process( int status )
{
exit( status );
call_thread_exit_func( status, exit, NtCurrentTeb() );
}
/**********************************************************************