On Thu, Mar 31, 2011 at 7:57 AM, H.J. Lu <hjl.to...@gmail.com> wrote: > On Mon, Mar 21, 2011 at 11:40 AM, H.J. Lu <hjl.to...@gmail.com> wrote: >> On Mon, Mar 14, 2011 at 12:28 PM, H.J. Lu <hjl.to...@gmail.com> wrote: >>> On Thu, Jan 27, 2011 at 2:40 AM, Richard Guenther >>> <richard.guent...@gmail.com> wrote: >>>> On Thu, Jan 27, 2011 at 12:12 AM, H.J. Lu <hongjiu...@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...@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? >
Hi Richard, Can you take a look at this patch? Thanks. -- H.J.
