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 ?
> LDFLAGS+= -nostdlib -e _rtld_start
> .else
> LDFLAGS+= -nostdlib -e .rtld_start
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