94792057ad
Like in r12-7519-g027e30414492d50feb2854aff38227b14300dc4b, I've done git grep -v 'long long\|optab optab\|template template\|double double' | grep ' \([a-zA-Z]\+\) \1 ' This is just part of the changes, mostly for non-gcc directories. I'll try to get to the rest soon. Obviously, the above command also finds cases which are correct as is and shouldn't be changed, so one needs to manually inspect everything. I'd hope most of it is pretty obvious, but the config/ and libstdc++-v3/ hunks include a tweak in a license wording, though other copies of the similar license have the wording right. 2024-04-02 Jakub Jelinek <jakub@redhat.com> * Makefile.tpl: Fix duplicated words; returns returns -> returns. config/ * lcmessage.m4: Fix duplicated words; can can -> can, package package -> package. libdecnumber/ * decCommon.c (decFinalize): Fix duplicated words in comment; the the -> the. libgcc/ * unwind-dw2-fde.c (struct fde_accumulator): Fix duplicated words in comment; is is -> is. libgfortran/ * configure.host: Fix duplicated words; the the -> the. libgm2/ * configure.host: Fix duplicated words; the the -> the. libgomp/ * libgomp.texi (OpenMP 5.2): Fix duplicated words; with with -> with. (omp_target_associate_ptr): Fix duplicated words; either either -> either. (omp_init_allocator): Fix duplicated words; be be -> be. (omp_realloc): Fix duplicated words; is is -> is. (OMP_ALLOCATOR): Fix duplicated words; other other -> other. * priority_queue.h (priority_queue_multi_p): Fix duplicated words; to to -> to. libiberty/ * regex.c (byte_re_match_2_internal): Fix duplicated words in comment; next next -> next. * dyn-string.c (dyn_string_init): Fix duplicated words in comment; of of -> of. libitm/ * beginend.cc (GTM::gtm_thread::begin_transaction): Fix duplicated words in comment; not not -> not to. libobjc/ * init.c (duplicate_classes): Fix duplicated words in comment; in in -> in. * sendmsg.c (__objc_prepare_dtable_for_class): Fix duplicated words in comment; the the -> the. * encoding.c (objc_layout_structure): Likewise. libstdc++-v3/ * acinclude.m4: Fix duplicated words; file file -> file can. * configure.host: Fix duplicated words; the the -> the. libvtv/ * vtv_rts.cc (vtv_fail): Fix duplicated words; to to -> to. * vtv_fail.cc (vtv_fail): Likewise.
382 lines
11 KiB
Plaintext
382 lines
11 KiB
Plaintext
# configure.host
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#
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# This shell script handles all host based configuration for libstdc++.
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# It sets various shell variables based on the host and the
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# configuration options. You can modify this shell script without needing
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# to rerun autoconf/aclocal/etc. This file is "sourced" not executed.
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#
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# You should read docs/html/17_intro/porting.* to make sense of this file.
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#
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#
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# It uses the following shell variables as set by config.guess:
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# host The configuration host (full CPU-vendor-OS triplet)
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# host_cpu The configuration host CPU
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# host_os The configuration host OS
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#
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#
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# It sets the following shell variables:
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#
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# cpu_include_dir CPU-specific directory, defaults to cpu/generic
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# if cpu/host_cpu doesn't exist. This is not used
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# directly, but sets the default for others.
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#
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# os_include_dir OS-specific directory, defaults to os/generic.
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#
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# c_model the "C" header model, defaults to c_global.
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#
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# c_compatibility if "C" compatibility headers are necessary,
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# defaults to no.
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#
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# abi_baseline_pair directory name for ABI compat testing,
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# defaults to host_cpu-host_os (as per config.guess)
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#
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# abi_baseline_subdir_switch
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# g++ switch to determine ABI baseline subdir for
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# multilibbed targets,
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# defaults to --print-multi-directory
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#
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# abi_tweaks_dir location of cxxabi_tweaks.h,
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# defaults to cpu_include_dir
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#
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# atomicity_dir location of atomicity.h,
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# defaults to cpu_include_dir
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#
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# atomic_word_dir location of atomic_word.h
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# defaults to generic.
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#
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# atomic_flags extra flags to pass to use atomic instructions
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# defaults to nothing.
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#
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# cpu_defines_dir location of cpu_defines.h
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# defaults to generic.
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#
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# cpu_opt_bits_random path name of random.h containing CPU-specific
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# optimizations
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#
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# cpu_opt_ext_random path name of random.h containing CPU-specific
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# optimizations for extensions
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#
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# error_constants_dir location of error_constants.h
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# defaults to os/generic.
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#
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# It possibly modifies the following variables:
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#
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# OPT_LDFLAGS extra flags to pass when linking the library, of
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# the form '-Wl,blah'
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# (defaults to empty in acinclude.m4)
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#
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# port_specific_symbol_files
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# whitespace-separated list of files containing
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# additional symbols to export from the shared
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# library, when symbol versioning is in use
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#
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# tmake_file A list of machine-description-specific
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# makefile fragments.
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#
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#
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# If the defaults will not work for your platform, you need only change the
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# variables that won't work, i.e., you do not need to explicitly set a
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# working variable to its default. Most hosts only need to change the two
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# *_include_dir variables.
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# DEFAULTS
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# Try to guess a default cpu_include_dir based on the name of the CPU. We
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# cannot do this for os_include_dir; there are too many portable operating
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# systems out there. :-)
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c_model=c_global
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c_compatibility=no
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atomic_word_dir=cpu/generic
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atomic_flags=""
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atomicity_dir="cpu/generic"
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cpu_defines_dir="cpu/generic"
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try_cpu=generic
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abi_baseline_subdir_switch=--print-multi-directory
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abi_tweaks_dir="cpu/generic"
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error_constants_dir="os/generic"
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tmake_file=
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# HOST-SPECIFIC OVERRIDES
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# Set any CPU-dependent bits.
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# Provide a way to funnel exotic flavors and prefixed/postfixed chip
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# variants into the established source config/cpu/* sub-directories.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_cpu}" in
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alpha*)
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try_cpu=alpha
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;;
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arm*)
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try_cpu=arm
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;;
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crisv32)
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try_cpu=cris
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;;
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i[567]86 | x86_64)
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try_cpu=i486
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;;
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hppa*)
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try_cpu=hppa
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;;
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mips*)
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try_cpu=mips
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;;
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powerpc* | rs6000)
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try_cpu=powerpc
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;;
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sparc* | ultrasparc)
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try_cpu=sparc
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;;
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*)
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if test -d ${glibcxx_srcdir}/config/cpu/${host_cpu}; then
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try_cpu=${host_cpu}
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fi
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esac
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# Now look for the file(s) usually tied to a CPU model, and make
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# default choices for those if they haven't been explicitly set
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# already.
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cpu_include_dir=cpu/${try_cpu}
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# Set specific CPU overrides for cpu_defines_dir. Most can just use generic.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_cpu}" in
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arm*)
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cpu_defines_dir=cpu/arm
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;;
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powerpc* | rs6000)
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cpu_defines_dir=cpu/powerpc
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;;
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esac
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# Set specific CPU overrides for atomic_word_dir and atomic_flags.
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# Most can just use generic.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_cpu}" in
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cris*)
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atomic_word_dir=cpu/cris
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;;
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i[4567]86 | x86_64)
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atomic_flags="-march=native"
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;;
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sparc* | ultrasparc)
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atomic_word_dir=cpu/sparc
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atomic_flags="-mcpu=v9"
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;;
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esac
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# Set specific CPU overrides for atomicity_dir.
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# This can be over-ridden in GLIBCXX_ENABLE_ATOMIC_BUILTINS.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/atomicity.h ; then
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atomicity_dir=$cpu_include_dir
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fi
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if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/cxxabi_tweaks.h ; then
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abi_tweaks_dir=$cpu_include_dir
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fi
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# Set directory with CPU-specific optimization
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cpu_opt_dir=${cpu_include_dir}/opt
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test -d ${glibcxx_srcdir}/config/${cpu_include_dir}/opt ||
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cpu_opt_dir=cpu/generic/opt
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# For each header with CPU-specific optimizations check whether it
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# exists in ${cpu_opt_dir}. If not, point the variable at the
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# appropriate file in the generic directory.
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cpu_opt_ext_random=${cpu_opt_dir}/ext/opt_random.h
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test -f ${glibcxx_srcdir}/config/${cpu_opt_ext_random} ||
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cpu_opt_ext_random=cpu/generic/opt/ext/opt_random.h
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cpu_opt_bits_random=${cpu_opt_dir}/bits/opt_random.h
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test -f ${glibcxx_srcdir}/config/${cpu_opt_ext_random} ||
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cpu_opt_ext_random=cpu/generic/opt/bits/opt_random.h
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# Set any OS-dependent bits.
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# Set the os_include_dir.
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# Set the error_costants_dir.
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# Set c_model, c_compatibility here.
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# If atomic ops and/or numeric limits are OS-specific rather than
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# CPU-specifc, set those here too.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_os}" in
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aix[56789]*)
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# Newer versions of AIX only support PowerPC architecture, so use
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# atomic instructions directly.
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os_include_dir="os/aix"
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tmake_file="os/aix/t-aix"
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;;
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aix*)
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os_include_dir="os/generic"
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atomicity_dir="cpu/generic"
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;;
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bsd*)
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# Plain BSD attempts to share FreeBSD files.
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os_include_dir="os/bsd/freebsd"
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;;
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cygwin*)
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os_include_dir="os/newlib"
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OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)"
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;;
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darwin[4-7] | darwin[4-7].*)
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# For earlier Darwin, performance is improved if libstdc++ is
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# single-module. Up to at least 10.3.7, -flat_namespace is required
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# for proper treatment of coalesced symbols.
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OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module -Wl,-flat_namespace"
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os_include_dir="os/bsd/darwin"
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;;
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darwin8 | darwin8.* )
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# For 8+ compatibility is better if not -flat_namespace.
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OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module"
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case "${host_cpu}" in
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i[34567]86 | x86_64)
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OPTIMIZE_CXXFLAGS="${OPTIMIZE_CXXFLAGS} -fvisibility-inlines-hidden"
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;;
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esac
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os_include_dir="os/bsd/darwin"
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;;
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darwin*)
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# Post Darwin8, defaults should be sufficient.
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os_include_dir="os/bsd/darwin"
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;;
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*djgpp*) # leading * picks up "msdosdjgpp"
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os_include_dir="os/djgpp"
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error_constants_dir="os/djgpp"
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;;
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dragonfly*)
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os_include_dir="os/bsd/dragonfly"
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;;
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freebsd*)
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os_include_dir="os/bsd/freebsd"
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;;
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linux-musl*)
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os_include_dir="os/generic"
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;;
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gnu* | linux* | kfreebsd*-gnu | uclinux*)
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if [ "$uclibc" = "yes" ]; then
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os_include_dir="os/uclibc"
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elif [ "$bionic" = "yes" ]; then
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os_include_dir="os/bionic"
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else
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os_include_dir="os/gnu-linux"
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fi
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;;
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hpux*)
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os_include_dir="os/hpux"
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;;
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mingw32*)
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case "$host" in
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*-w64-*)
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os_include_dir="os/mingw32-w64"
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error_constants_dir="os/mingw32-w64"
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;;
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*)
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os_include_dir="os/mingw32"
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error_constants_dir="os/mingw32"
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;;
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esac
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OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)"
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;;
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netbsd*)
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os_include_dir="os/bsd/netbsd"
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;;
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openbsd*)
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os_include_dir="os/bsd/openbsd"
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;;
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qnx6.[12]*)
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os_include_dir="os/qnx/qnx6.1"
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c_model=c
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;;
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rtems*)
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# Use libatomic if necessary and avoid libstdc++ specific atomicity support
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atomicity_dir="cpu/generic/atomicity_builtins"
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;;
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solaris2*)
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os_include_dir="os/solaris"
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;;
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tpf)
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os_include_dir="os/tpf"
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;;
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vxworks*)
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os_include_dir="os/vxworks"
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;;
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*)
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os_include_dir="os/generic"
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;;
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esac
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# Set any OS-dependent and CPU-dependent bits.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host}" in
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loongarch*)
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tmake_file="cpu/loongarch/t-loongarch"
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;;
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*-*-linux* | *-*-uclinux*)
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case "${host_cpu}" in
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i[567]86)
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abi_baseline_pair=i486-linux-gnu
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;;
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mips64*)
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abi_baseline_pair=mips64-linux-gnu
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;;
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powerpc64le*)
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abi_baseline_pair=powerpc64le-linux-gnu
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;;
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powerpc64*)
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abi_baseline_pair=powerpc64-linux-gnu
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;;
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s390)
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abi_baseline_pair=s390-linux-gnu
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;;
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s390x)
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abi_baseline_pair=s390x-linux-gnu
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;;
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sparc64)
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abi_baseline_pair=sparc64-linux-gnu
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;;
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x86_64)
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abi_baseline_pair=x86_64-linux-gnu
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;;
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*)
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if test $try_cpu = generic; then
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try_abi_cpu=$host_cpu
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else
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try_abi_cpu=$try_cpu
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fi
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if test -d ${glibcxx_srcdir}/config/abi/post/${try_abi_cpu}-linux-gnu; then
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abi_baseline_pair=${try_abi_cpu}-linux-gnu
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fi
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esac
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case "${host}" in
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arm*-*-linux-* | arm*-*-uclinuxfdpiceabi)
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port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver"
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;;
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esac
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;;
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arm*-*-freebsd*)
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port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver"
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;;
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powerpc*-*-darwin*)
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port_specific_symbol_files="\$(srcdir)/../config/os/bsd/darwin/ppc-extra.ver"
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;;
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*-*-solaris2*)
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abi_baseline_pair=solaris
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case "${host_cpu}" in
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i?86 | x86_64)
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abi_baseline_pair=i386-${abi_baseline_pair}
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;;
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sparc*)
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abi_baseline_pair=sparc-${abi_baseline_pair}
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;;
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esac
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abi_baseline_subdir_switch=--print-multi-os-directory
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;;
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esac
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