Start/Reset app with custom bootloader

[Wyrm]

Edit: fixed a typo -- pa

Hellow! When i debugging an application with a pre-installed bootloader in the Keil environment, I used the following script:

FUNC void DebugSetup (void) {
// </h>
SP = _RDWORD(0x08040800); // Setup Stack Pointer
PC = _RDWORD(0x08040804); // Setup Program Counter
_WDWORD(0xE000ED08, 0x08040800); // VTOR to Image Base
}

FUNC void OnResetExec(void) {
DebugSetup();
}

DebugSetup(); // Debugger Setup

in vscode plugin i add to launch.json

"preRunCommands": [
"set $sp = *(unsigned int *)0x08018000",
"set $pc = *(unsigned int *)0x08018004",
"set {unsigned int}0xE000ED08 = 0x08018000",
],

And it works fine until I do a reset, is there a way to fix this?
For example, something like "postRestartSessionCommands". 

[Wyrm]

Yes, you are absolutely right, error was in my code because the function variables were on the stack.
And it worked in my projects because Keil doesn't allocate a stack, like GCC And this is the way to UB

I attached screenshots where the bootloader starts with 0x08000000 and stack like in map file

__initial_sp 0x20001a80 Data 0 startup_stm32f765xx.o(STACK)

My Keil sct file

LR_IROM1 0x08000000 0x00010000 { ; load region size_region
ER_IROM1 0x08000000 0x00010000 { ; load address = execution address
*.o (RESET, +First)
*(InRoot$$Sections)
.ANY (+RO)
.ANY (+XO)
}
RW_IRAM1 0x20000000 0x00080000 { ; RW data
.ANY (+RW +ZI)
}
}

LR_APP_INFO 0x08010000 0x00000100 {
ER_APP_INFO 0x08010000 0x00000100 {
*(.ARM.__app_info)
}

Sorry for wasting your time on such basic error. I'm so ashamed that I wasted so much time on this mistake.. Thank you!