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Add assertion for monotonic dump times #2103 (#2237)

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Nathan Myers 2020-04-09 19:00:27 -04:00 committed by GitHub
parent 05f213c266
commit 4c1ae4701a
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3 changed files with 9 additions and 0 deletions
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1
docs/CONTRIBUTORS
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@ -28,6 +28,7 @@ Maciej Sobkowski
Marco Widmer Marco Widmer
Matthew Ballance Matthew Ballance
Mike Popoloski Mike Popoloski
Nathan Myers
Patrick Stewart Patrick Stewart
Peter Monsson Peter Monsson
Philipp Wagner Philipp Wagner

7
include/verilated_fst_c.cpp
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@ -76,6 +76,7 @@ protected:
VerilatedFst::VerilatedFst(void* fst) VerilatedFst::VerilatedFst(void* fst)
: m_fst(fst) : m_fst(fst)
, m_fullDump(true) , m_fullDump(true)
, m_minNextDumpTime(0)
, m_nextCode(1) , m_nextCode(1)
, m_scopeEscape('.') , m_scopeEscape('.')
, m_symbolp(NULL) { , m_symbolp(NULL) {
@ -212,6 +213,12 @@ void VerilatedFst::addCallback(VerilatedFstCallback_t initcb, VerilatedFstCallba
void VerilatedFst::dump(vluint64_t timeui) { void VerilatedFst::dump(vluint64_t timeui) {
if (!isOpen()) return; if (!isOpen()) return;
if (timeui < m_minNextDumpTime) {
VL_PRINTF_MT("%%Warning: previous dump at t=%" VL_PRI64 "u, requesting t=%" VL_PRI64 "u\n",
m_minNextDumpTime - 1, timeui);
return;
}
m_minNextDumpTime = timeui + 1;
if (VL_UNLIKELY(m_fullDump)) { if (VL_UNLIKELY(m_fullDump)) {
m_fullDump = false; // No more need for next dump to be full m_fullDump = false; // No more need for next dump to be full
for (vluint32_t ent = 0; ent < m_callbacks.size(); ++ent) { for (vluint32_t ent = 0; ent < m_callbacks.size(); ++ent) {

1
include/verilated_fst_c.h
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@ -48,6 +48,7 @@ private:
void* m_fst; void* m_fst;
VerilatedAssertOneThread m_assertOne; ///< Assert only called from single thread VerilatedAssertOneThread m_assertOne; ///< Assert only called from single thread
bool m_fullDump; bool m_fullDump;
vluint64_t m_minNextDumpTime;
vluint32_t m_nextCode; ///< Next code number to assign vluint32_t m_nextCode; ///< Next code number to assign
char m_scopeEscape; char m_scopeEscape;
std::string m_module; std::string m_module;