| 210 |
|
|
| 211 |
|
|
| 212 |
|
/* |
| 213 |
+ |
* SIGSEGV handler |
| 214 |
+ |
*/ |
| 215 |
+ |
|
| 216 |
+ |
static sigsegv_return_t sigsegv_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction) |
| 217 |
+ |
{ |
| 218 |
+ |
#if ENABLE_VOSF |
| 219 |
+ |
// Handle screen fault |
| 220 |
+ |
extern bool Screen_fault_handler(sigsegv_address_t, sigsegv_address_t); |
| 221 |
+ |
if (Screen_fault_handler(fault_address, fault_instruction)) |
| 222 |
+ |
return SIGSEGV_RETURN_SUCCESS; |
| 223 |
+ |
#endif |
| 224 |
+ |
|
| 225 |
+ |
#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION |
| 226 |
+ |
// Ignore writes to ROM |
| 227 |
+ |
if (((uintptr)fault_address - (uintptr)ROMBaseHost) < ROMSize) |
| 228 |
+ |
return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
| 229 |
+ |
|
| 230 |
+ |
// Ignore all other faults, if requested |
| 231 |
+ |
if (PrefsFindBool("ignoresegv")) |
| 232 |
+ |
return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
| 233 |
+ |
#endif |
| 234 |
+ |
|
| 235 |
+ |
return SIGSEGV_RETURN_FAILURE; |
| 236 |
+ |
} |
| 237 |
+ |
|
| 238 |
+ |
/* |
| 239 |
|
* Dump state when everything went wrong after a SEGV |
| 240 |
|
*/ |
| 241 |
|
|
| 383 |
|
if (!PrefsEditor()) |
| 384 |
|
QuitEmulator(); |
| 385 |
|
|
| 386 |
< |
// Register request to ignore all segmentation faults |
| 387 |
< |
#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION |
| 388 |
< |
if (PrefsFindBool("ignoresegv")) |
| 389 |
< |
sigsegv_add_ignore_range(0, ~(0UL), SIGSEGV_TRANSFER_LOAD | SIGSEGV_TRANSFER_STORE); |
| 364 |
< |
#endif |
| 365 |
< |
|
| 386 |
> |
// Install the handler for SIGSEGV |
| 387 |
> |
if (!sigsegv_install_handler(sigsegv_handler)) |
| 388 |
> |
return false; |
| 389 |
> |
|
| 390 |
|
// Register dump state function when we got mad after a segfault |
| 391 |
|
sigsegv_set_dump_state(sigsegv_dump_state); |
| 392 |
|
|
