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Add increasing of stack size when possible (#5071) (#5104)

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This commit is contained in:
Yinan Xu
2024-05-08 22:40:42 -04:00
committed by GitHub
parent ed01befc25
commit ce5cad17a8
3 changed files with 38 additions and 7 deletions
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include/verilated.cpp
+15 -6
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@@ -3128,12 +3128,21 @@ void Verilated::stackCheck(QData needSize) VL_MT_UNSAFE {
if (haveSize == RLIM_INFINITY) haveSize = 0;
}
// VL_PRINTF_MT("-Info: stackCheck(%" PRIu64 ") have %" PRIu64 "\n", needSize, haveSize);
// Check for 1.5x need, but suggest 2x so small model increase won't cause warning
// if the user follows the suggestions
if (VL_UNLIKELY(haveSize && needSize && haveSize < (needSize + needSize / 2))) {
VL_PRINTF_MT("%%Warning: System has stack size %" PRIu64 " kb"
" which may be too small; suggest 'ulimit -s %" PRIu64 "' or larger\n",
haveSize / 1024, (needSize * 2) / 1024);
// Check and request for 1.5x need. This is automated so the user doesn't need to do anything.
QData requestSize = needSize + needSize / 2;
if (VL_UNLIKELY(haveSize && needSize && haveSize < requestSize)) {
// Try to increase the stack limit to the requested size
rlim.rlim_cur = requestSize;
if (
#ifdef _VL_TEST_RLIMIT_FAIL
true ||
#endif
setrlimit(RLIMIT_STACK, &rlim)) {
VL_PRINTF_MT("%%Warning: System has stack size %" PRIu64 " kb"
" which may be too small; failed to request more"
" using 'ulimit -s %" PRIu64 "'\n",
haveSize / 1024, requestSize);
}
}
#else
(void)needSize; // Unused argument