Raymond Toy pushed to branch issue-122-dynamically-allocate-altstack at cmucl / cmucl
Commits:
-
e6dd7ca5
by Raymond Toy at 2022-01-30T15:40:37-08:00
1 changed file:
Changes:
| ... | ... | @@ -406,7 +406,7 @@ interrupt_maybe_gc(HANDLER_ARGS) |
| 406 | 406 |
\****************************************************************/
|
| 407 | 407 |
|
| 408 | 408 |
#if defined(__linux__)
|
| 409 |
-char* altstack;
|
|
| 409 |
+char* altstack = NULL;
|
|
| 410 | 410 |
#else
|
| 411 | 411 |
char altstack[SIGNAL_STACK_SIZE];
|
| 412 | 412 |
#endif
|
| ... | ... | @@ -436,7 +436,14 @@ interrupt_install_low_level_handler(int signal, void handler(HANDLER_ARGS)) |
| 436 | 436 |
sigstack.ss_sp = (void *) SIGNAL_STACK_START;
|
| 437 | 437 |
#else
|
| 438 | 438 |
#if defined(__linux__)
|
| 439 |
- altstack = malloc(SIGSTKSZ);
|
|
| 439 |
+ /*
|
|
| 440 |
+ * For gcc 11.2 (clang 13.0), we need to allocate altstack
|
|
| 441 |
+ * dynamically. Do this here, but only if we haven't already
|
|
| 442 |
+ * allocated space.
|
|
| 443 |
+ */
|
|
| 444 |
+ if (altstack == NULL) {
|
|
| 445 |
+ altstack = malloc(SIGSTKSZ);
|
|
| 446 |
+ }
|
|
| 440 | 447 |
#endif
|
| 441 | 448 |
sigstack.ss_sp = (void *) altstack;
|
| 442 | 449 |
#endif
|