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On Thu, Mar 31, 2011 at 7:57 AM, H.J. Lu <hjl.tools@gmail.com> wrote: > On Mon, Mar 21, 2011 at 11:40 AM, H.J. Lu <hjl.tools@gmail.com> wrote: >> On Mon, Mar 14, 2011 at 12:28 PM, H.J. Lu <hjl.tools@gmail.com> wrote: >>> On Thu, Jan 27, 2011 at 2:40 AM, Richard Guenther >>> <richard.guenther@gmail.com> wrote: >>>> On Thu, Jan 27, 2011 at 12:12 AM, H.J. Lu <hongjiu.lu@intel.com> wrote: >>>>> On Tue, Dec 14, 2010 at 05:20:48PM -0800, H.J. Lu wrote: >>>>>> This patch uses .init_array/.fini_array sections instead of >>>>>> .ctors/.dtors sections if mixing .init_array/.fini_array and >>>>>> .ctors/.dtors sections with init_priority works. >>>>>> >>>>>> It removes .ctors/.ctors sections from executables and DSOes, which will >>>>>> remove one function call at startup time from each executable and DSO. >>>>>> It should reduce image size and improve system startup time. >>>>>> >>>>>> If a platform with a working .init_array/.fini_array support needs a >>>>>> different .init_array/.fini_array implementation, it can set >>>>>> use_initfini_array to no. >>>>>> >>>>>> Since .init_array/.fini_array is a target feature. --enable-initfini-array >>>>>> is default to no unless the native run-time test is passed. >>>>>> >>>>>> To pass the native run-time test, a linker with SORT_BY_INIT_PRIORITY >>>>>> support is required. ?The binutils patch is available at >>>>>> >>>>>> http://sourceware.org/ml/binutils/2010-12/msg00466.html >>>>> >>>>> Linker patch has been checked in. >>>>> >>>>>> >>>>>> This patch passed 32bit/64bit regression test on Linux/x86-64. ?Any >>>>>> comments? >>>>>> >>>>> >>>>> This updated patch fixes build on Linux/ia64 and should work on others. >>>>> Any comments? >>>> >>>> Yes. ?This is stage1 material. >>>> >>> >>> Here is the updated patch. ?OK for trunk? >>> >>> Thanks. >>> >>> >>> -- >>> H.J. >>> ---- >>> 2011-03-14 ?H.J. Lu ?<hongjiu.lu@intel.com> >>> >>> ? ? ? ?PR target/46770 >>> ? ? ? ?* acinclude.m4 (gcc_AC_INITFINI_ARRAY): Removed. >>> >>> ? ? ? ?* config.gcc (use_initfini_array): New variable. >>> ? ? ? ?Use initfini-array.o if supported. >>> >>> ? ? ? ?* crtstuff.c: Don't generate .ctors nor .dtors sections if >>> ? ? ? ?NO_CTORS_DTORS_SECTIONS is defined. >>> >>> ? ? ? ?* configure.ac: Remove gcc_AC_INITFINI_ARRAY. ?Add >>> ? ? ? ?--enable-initfini-array and check if .init_array can be used with >>> ? ? ? ?.ctors. >>> >>> ? ? ? ?* configure: Regenerated. >>> >>> ? ? ? ?* config/initfini-array.c: New. >>> ? ? ? ?* config/initfini-array.h: Likewise. >>> ? ? ? ?* config/t-initfini-array: Likewise. >>> >>> ? ? ? ?* config/arm/arm.c (arm_asm_init_sections): Call >>> ? ? ? ?elf_initfini_array_init_sections if NO_CTORS_DTORS_SECTIONS >>> ? ? ? ?is defined. >>> ? ? ? ?* config/avr/avr.c (avr_asm_init_sections): Likewise. >>> ? ? ? ?* config/ia64/ia64.c (ia64_asm_init_sections): Likewise. >>> ? ? ? ?* config/mep/mep.c (mep_asm_init_sections): Likewise. >>> ? ? ? ?* config/microblaze/microblaze.c (microblaze_elf_asm_init_sections): >>> ? ? ? ?Likewise. >>> ? ? ? ?* config/rs6000/rs6000.c (rs6000_elf_asm_init_sections): Likewise. >>> ? ? ? ?* config/stormy16/stormy16.c (xstormy16_asm_init_sections): >>> ? ? ? ?Likewise. >>> ? ? ? ?* config/v850/v850.c (v850_asm_init_sections): Likewise. >>> >> >> PING: >> >> http://gcc.gnu.org/ml/gcc-patches/2011-03/msg00760.html >> > > Any comments? ?Any objections? > Here is the patch updated for the current trunk. OK for trunk? Thanks. -- H.J.
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