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ntdll: Use a .seh handler in DbgUiRemoteBreakin on ARM64EC.

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This commit is contained in:
Alexandre Julliard 2024-02-27 16:48:25 +01:00
parent 58e68a1b8a
commit 8e26b7e007
1 changed files with 18 additions and 14 deletions
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32
dlls/ntdll/signal_arm64ec.c
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@ -1792,26 +1792,30 @@ __ASM_GLOBAL_FUNC( "#process_breakpoint",
"mov w0, #0\n\t" /* ExceptionContinueExecution */
"ret" )
/***********************************************************************
* DbgUiRemoteBreakin (NTDLL.@)
*/
void WINAPI DbgUiRemoteBreakin( void *arg )
void __attribute__((naked)) DbgUiRemoteBreakin( void *arg )
{
if (NtCurrentTeb()->Peb->BeingDebugged)
{
__TRY
{
DbgBreakPoint();
}
__EXCEPT_ALL
{
/* do nothing */
}
__ENDTRY
}
RtlExitUserThread( STATUS_SUCCESS );
asm( ".seh_proc DbgUiRemoteBreakin\n\t"
"stp x29, x30, [sp, #-16]!\n\t"
".seh_save_fplr_x 16\n\t"
".seh_endprologue\n\t"
".seh_handler DbgUiRemoteBreakin_handler, @except\n\t"
"ldr x0, [x18, #0x60]\n\t" /* NtCurrentTeb()->Peb */
"ldrb w0, [x0, 0x02]\n\t" /* peb->BeingDebugged */
"cbz w0, 1f\n\t"
"bl DbgBreakPoint\n"
"1:\tmov w0, #0\n\t"
"bl RtlExitUserThread\n"
"DbgUiRemoteBreakin_handler:\n\t"
"mov sp, x1\n\t" /* frame */
"b 1b\n\t"
".seh_endproc" );
}
/**********************************************************************
* DbgBreakPoint (NTDLL.@)
*/