Date: Thu, 3 Dec 2015 09:03:32 -0800 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r291666 - head/libexec/rtld-elf Message-ID: <566075E4.8090202@freebsd.org> In-Reply-To: <566062EB.7070200@freebsd.org> References: <201512030006.tB306xTa074887@repo.freebsd.org> <20151203085028.GH2405@kib.kiev.ua> <566062EB.7070200@freebsd.org>
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On 12/03/15 07:42, Nathan Whitehorn wrote: > > > On 12/03/15 00:50, Konstantin Belousov wrote: >> On Thu, Dec 03, 2015 at 12:06:59AM +0000, Nathan Whitehorn wrote: >>> Author: nwhitehorn >>> Date: Thu Dec 3 00:06:59 2015 >>> New Revision: 291666 >>> URL: https://svnweb.freebsd.org/changeset/base/291666 >>> >>> Log: >>> Fix build on GCC 5.2 where, at least on PPC64, the compiler would >>> "optimize" >>> the malloc() + memset() in the local implementation of calloc() >>> into a call >>> to calloc(), helpfully turning it into an infinite loop. Clean up >>> some >>> unneeded flags on PPC64 while here. >>> MFC after: 1 month >>> >>> Modified: >>> head/libexec/rtld-elf/Makefile >>> >>> Modified: head/libexec/rtld-elf/Makefile >>> ============================================================================== >>> >>> --- head/libexec/rtld-elf/Makefile Thu Dec 3 00:02:01 2015 >>> (r291665) >>> +++ head/libexec/rtld-elf/Makefile Thu Dec 3 00:06:59 2015 >>> (r291666) >>> @@ -13,7 +13,7 @@ SRCS= rtld_start.S \ >>> malloc.c xmalloc.c debug.c libmap.c >>> MAN= rtld.1 >>> CSTD?= gnu99 >>> -CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD >>> +CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD -fno-builtin >>> CFLAGS+= -I${SRCTOP}/lib/csu/common >>> .if exists(${.CURDIR}/${MACHINE_ARCH}) >>> RTLD_ARCH= ${MACHINE_ARCH} >>> @@ -22,7 +22,6 @@ RTLD_ARCH= ${MACHINE_CPUARCH} >>> .endif >>> CFLAGS+= -I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR} >>> .if ${MACHINE_ARCH} == "powerpc64" >>> -CFLAGS+= -mcall-aixdesc >> I wanted to set -ffreestanding for rtld compilation, but considered >> it only >> a minor issue. Could you test this instead of -fno-builtin, please ? >> > > Sure, I'll test it today. > -Nathan > > -ffreestanding works just as well for this as -fno-builtin. Would you like to make the change? -Nathan
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