Author: bapt Date: Mon Aug 15 08:20:37 2016 New Revision: 304113 URL: https://svnweb.freebsd.org/changeset/base/304113
Log: MFC: r303685 truss: fix uninitialized trussinfo->curthread in add_threads()/enter_syscall trussinfo->curthread must be initialized before calling enter_syscall(), it is used by t->proc->abi->fetch_args(). Without that truss is segfaulting and the attached program also crash. Submitted by: Nikita Kozlov (nik...@gandi.net) Reviewed by: jhb Approved by: re (gjb) Differential Revision: https://reviews.freebsd.org/D7399 Modified: releng/11.0/usr.bin/truss/setup.c Directory Properties: releng/11.0/ (props changed) Modified: releng/11.0/usr.bin/truss/setup.c ============================================================================== --- releng/11.0/usr.bin/truss/setup.c Mon Aug 15 08:07:07 2016 (r304112) +++ releng/11.0/usr.bin/truss/setup.c Mon Aug 15 08:20:37 2016 (r304113) @@ -223,8 +223,10 @@ add_threads(struct trussinfo *info, stru t = new_thread(p, lwps[i]); if (ptrace(PT_LWPINFO, lwps[i], (caddr_t)&pl, sizeof(pl)) == -1) err(1, "ptrace(PT_LWPINFO)"); - if (pl.pl_flags & PL_FLAG_SCE) + if (pl.pl_flags & PL_FLAG_SCE) { + info->curthread = t; enter_syscall(info, t, &pl); + } } free(lwps); } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
