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Cygwin: Zero out gmon header before use 

Tools that process gmon.out files can be confused by gmon header fields
with garbage in them due to lack of initialization.  Repair that.
This commit is contained in:
Mark Geisert 2021-06-23 01:56:14 -07:00 committed by Jon Turney
parent a39ae40b86
commit 5c9c31c52b
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1 changed files with 1 additions and 0 deletions
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winsup/cygwin/gmon.c
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@ -224,6 +224,7 @@ _mcleanup(void)
write(log, dbuf, len); write(log, dbuf, len);
#endif #endif
hdr = (struct gmonhdr *)&gmonhdr; hdr = (struct gmonhdr *)&gmonhdr;
bzero(hdr, sizeof *hdr);
hdr->lpc = p->lowpc; hdr->lpc = p->lowpc;
hdr->hpc = p->highpc; hdr->hpc = p->highpc;
hdr->ncnt = p->kcountsize + sizeof(gmonhdr); hdr->ncnt = p->kcountsize + sizeof(gmonhdr);