Date: Wed, 15 Sep 2010 11:19:52 +0000 From: David Xu <davidxu@freebsd.org> To: Alexander Kabaev <kabaev@gmail.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r212630 - in head/lib/libthr: . thread Message-ID: <4C90ABD8.1020609@freebsd.org> In-Reply-To: <20100914231728.33ca7466@kan.dnsalias.net> References: <201009150256.o8F2uXwX004579@svn.freebsd.org> <20100914231728.33ca7466@kan.dnsalias.net>
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Alexander Kabaev wrote: > On Wed, 15 Sep 2010 02:56:33 +0000 (UTC) > David Xu <davidxu@FreeBSD.org> wrote: > >> Author: davidxu >> Date: Wed Sep 15 02:56:32 2010 >> New Revision: 212630 >> URL: http://svn.freebsd.org/changeset/base/212630 >> >> Log: >> add code to support stack unwinding when thread exits. note that >> only defer-mode cancellation works, asynchrnous mode does not work >> because it lacks of libuwind's support. stack unwinding is not >> enabled unless LIBTHR_UNWIND_STACK is defined in Makefile. >> >> Modified: >> head/lib/libthr/Makefile >> head/lib/libthr/thread/thr_clean.c >> head/lib/libthr/thread/thr_create.c >> head/lib/libthr/thread/thr_exit.c >> head/lib/libthr/thread/thr_init.c >> head/lib/libthr/thread/thr_private.h >> >> Modified: head/lib/libthr/Makefile >> ============================================================================== >> --- head/lib/libthr/Makefile Wed Sep 15 01:21:30 2010 >> (r212629) +++ head/lib/libthr/Makefile Wed Sep 15 02:56:32 >> 2010 (r212630) @@ -25,6 +25,14 @@ >> CFLAGS+=-I${.CURDIR}/../../libexec/rtld- >> CFLAGS+=-I${.CURDIR}/../../libexec/rtld-elf/${MACHINE_CPUARCH} >> CFLAGS+=-I${.CURDIR}/../libthread_db CFLAGS+=-Winline >> + >> +LIBTHR_UNWIND_STACK=yes >> + >> +.ifdef LIBTHR_UNWIND_STACK >> +CFLAGS+=-I${.CURDIR}/../../contrib/gcc -fexceptions >> +CFLAGS+=-D_PTHREAD_FORCED_UNWIND >> +.endif >> + >> > > Reaching into bowels of GCC like that is never good. Any solution ? ;-)
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