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Here is an updated patch with --no-pipeline-knowledge option added. -Doug 2010-03-30 Doug Kwan <dougkwan@google.com> * arm.cc (Arm_relobj::Arm_relobj): Initialize merge_flags_and_attribures. (Arm_relobj::merge_flags_and_attributes): New method. (Arm_relobj::merge_flags_and_attributes_): New data member. (Arm_exidx_cantunwind::do_fixed_endian_write): Fix formatting. (Arm_relobj::scan_sections_for_stubs): Ditto. (Arm_relobj::do_read_symbols): Check to see if we really want to merge processor-specific flags and attributes. Exit early if an object is empty except for section names and the undefined symbol. (Target_arm::do_finalize_sections): Move check for ELF format to Arm_relobj::do_read_symbols. Merge processor specific flags and attributes from a regular object only when we have determined that it is aapropriate. Do not create an .ARM.attributes section in output if there is no regular input object. (Target_arm::merge_processor_specific_flags): Check --warn-mismatch before printing any error. (Target_arm::merge_object_attributes): Ditto. * gold.cc (queue_middle_tasks): Handle the case in which there is no regular object in input. * options.cc (General_options::parse_EB): New method. (General_options::parse_EL): Same. (General_options::General_options): Initialize endianity_. * options.h (-EB, -EL, --no-pipeline-knowledge, -p, --warn-mismatch): New options. (General_options::Endianity): New enum. (General_options::endianity): New method. (General_options::endianity_): New data member. * parameters.cc (Parameters::set_options): Check target endianity. (Parameters::set_target_once): Ditto. (Parameters::check_target_endianity): New method. (parameters_force_valid_target): If either -EL or -EB is specified, use it to define endianity of default target. * parameters.h (Parameters::check_target_endianity): New method declaration. 在 2010年3月30日下午5:18,Doug Kwan (關振德) <dougkwan@google.com> 寫道: > Sure. I can add the long option. > > -Doug > > 2010/3/30 Matt Rice <ratmice@gmail.com>: >> On Tue, Mar 30, 2010 at 1:58 AM, Doug Kwan (關振德) <dougkwan@google.com> wrote: >> >>> It adds new options -EL, -EB, >>> --no-warn-mismatch and -p. The -p option really does nothing and is >>> provided for compatibility with ld. >> >> Hey Doug, >> >> could you maybe add the long version of -p it looks to me like it is >> '-no-pipeline-knowledge' >> >> I don't suppose you know which toolchains out there require this -p >> option (to actually do something) >> and if they are still in use (iirc its been 10 years since this option >> did anything in gnu ld), >> I had implemented the solaris version of -p (a different option, under >> a different name due to this clash, solaris unfortunately provides no >> long option equivalent), >> >> anyhow, the reason i ask is one potential deprecation process could be >> switching the kernel to pass the long option then deprecate -p freeing >> up the short option for later reclaimation, this might not work if any >> of these mystery toolchains implement -p without the >> -no-pipeline-knowledge option >> but then if someone gets -no-pipeline-knowledge unrecognized argument >> we'll know that we are at least passing this option for some good >> reason. >> i'm not really sure what the effects of outright removal would be were >> the option required so, this less invasive change of moving to the >> long option >> would at least give people an error message >> >> of you I'm just asking for the long option, and if you have further >> info on this to pass it along, and if you think this sounds good i can >> send a patch to the kernel switching to the long option. >> >
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patch-no-pipeline-knowledge.txt
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