mirror of
https://github.com/raspberrypi/pico-sdk.git
synced 2026-03-14 21:19:43 +01:00
771ac20b11
- stack should remain properly aligned - risc-v was actually completely broken for user defined handlers because GCC was auto-pushing vaargs for naked function even with no stack frame - new implementation supports full call stacks in gdb for Arm or RISC-V when hitting breakpoint in panic function - new config defines make it explicit that gdb full stgack trace comes at the cost of corrupting stack based vaargs 4th is corrupted on Arm, later on RiSC-V (7 maybe?)
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
#include <stdio.h>
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#include <stdarg.h>
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#include "pico/stdlib.h"
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#define MAGIC1 ((const char *)0x87654321)
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#define MAGIC2 0x97654321
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#define MAGIC3 3.14159265358979323846
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#define MAGIC4 123
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#define MAGIC5 456
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#define MAGIC6 789
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#define MAGIC7 0xabc
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#define PICO_PANIC_FUNCTION_IS_EMPTY (__CONCAT(PICO_PANIC_FUNCTION, 1))
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void __printflike(1, 0) handle_panic(const char *magic1, ...)
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{
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printf("checking first arg...\n");
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if (magic1 != MAGIC1) {
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printf("magic1 (%08x) != 0x%08x\n", magic1, MAGIC1);
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return;
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}
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va_list args;
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va_start(args, magic1);
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printf("checking early vaargs...\n");
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int magic2 = va_arg(args, int);
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if (magic2 != MAGIC2) {
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printf("magic2 (%08x) != 0x%08x\n", magic2, MAGIC2);
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return;
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}
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double magic3 = va_arg(args, double);
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if (magic3 != MAGIC3) {
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printf("magic3 (%f) != 0x%f\n", magic3, MAGIC3);
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return;
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}
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#if PICO_PANIC_FUNCTION_WITH_ALL_VAARGS
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printf("checking remaining vaargs...\n");
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int magic4 = va_arg(args, int);
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if (magic4 != MAGIC4) {
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printf("magic4 (%08x) != 0x%08x\n", magic4, MAGIC4);
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return;
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}
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int magic5 = va_arg(args, int);
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if (magic5 != MAGIC5) {
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printf("magic5 (%08x) != 0x%08x\n", magic5, MAGIC5);
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return;
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}
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int magic6 = va_arg(args, int);
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if (magic6 != MAGIC6) {
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printf("magic6 (%08x) != 0x%08x\n", magic6, MAGIC6);
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return;
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}
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int magic7 = va_arg(args, int);
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if (magic7 != MAGIC7) {
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printf("magic7 (%08x) != 0x%08x\n", magic7, MAGIC7);
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return;
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}
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#endif
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va_end(args);
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puts("PASSED");
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}
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void main() {
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stdio_init_all();
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#ifndef PICO_PANIC_FUNCTION
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printf("Using default panic function...\n");
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panic("PASSED"); // should be printed
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#else
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#if PICO_PANIC_FUNCTION_IS_EMPTY
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printf("Using empty (bkpt only) panic function...\n");
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printf("PASSED\n"); // we should breakpoint next
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panic(MAGIC1, MAGIC2, MAGIC3, MAGIC4, MAGIC5, MAGIC6, MAGIC7);
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#endif
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printf("Using custom panic function '" __XSTRING(PICO_PANIC_FUNCTION) "'...\n");
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panic(MAGIC1, MAGIC2, MAGIC3, MAGIC4, MAGIC5, MAGIC6, MAGIC7);
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#endif
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printf("FAILED: expected panic not to return");
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}
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