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Remove $date from .vcd files (#3779)

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Larry Doolittle 2022-11-27 17:24:22 -08:00 committed by GitHub
parent f4be3d5d2b
commit 6349e76abd
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2 changed files with 7 additions and 18 deletions
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19
include/verilated_vcd_c.cpp
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@ -29,7 +29,6 @@
#include <algorithm>
#include <cerrno>
#include <ctime>
#include <fcntl.h>
#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__CYGWIN__)
@ -362,17 +361,13 @@ void VerilatedVcd::printIndent(int level_change) {
void VerilatedVcd::dumpHeader() {
printStr("$version Generated by VerilatedVcd $end\n");
printStr("$date ");
{
const time_t tick = time(nullptr);
tm ticktm;
VL_LOCALTIME_R(&tick, &ticktm);
constexpr size_t LEN_BUF = 50;
char buf[LEN_BUF];
std::strftime(buf, LEN_BUF, "%c", &ticktm);
printStr(buf);
}
printStr(" $end\n");
// Verilator used to put in a $date here. Although $date is shown in
// IEEE examples, and it is common in VCD writers, VCD readers don't
// seem to care about it. Thus, we omit the $date so artifacts are
// more likely to be reproducible. If use cases show up that require
// the $date command to be present, it could be re-added with support
// for the SOURCE_DATE_EPOCH hook.
printStr("$timescale ");
printStr(timeResStr().c_str()); // lintok-begin-on-ref

6
include/verilatedos.h
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@ -502,12 +502,6 @@ using ssize_t = uint32_t; ///< signed size_t; returned from read()
# define VL_STRCASECMP strcasecmp
#endif
#if defined(__MINGW32__) || defined(_MSC_VER)
# define VL_LOCALTIME_R(timep, tmp) localtime_s((tmp), (timep))
#else
# define VL_LOCALTIME_R(timep, tmp) localtime_r((timep), (tmp))
#endif
//=========================================================================
// Macros controlling target specific optimizations