c18dc5ccea
config: * gc++filt.m4: New file. contrib: * make_sunver.pl: New file. libstdc++v3: * acinclude.m4 (GLIBCXX_ENABLE_SYMVERS): Handle sun style. Require GCC_PROG_GNU_CXXFILT. (_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT): Define unless targetting solaris2*. Include ../config/gc++filt.m4. * configure.host (i?86-*-solaris2*): Set abi_baseline_pair. (sparc-*-solaris2*): Likewise. * src/Makefile.am [ENABLE_SYMVERS_SUN] (version_dep, version_arg): New variables. (libstdc++-symbols.ver-sun): New target. * configure: Regenerate. * config.h.in: Regenerate. * Makefile.in: Likewise. * doc/Makefile.in: Likewise. * include/Makefile.in: Likewise. * libsupc++/Makefile.in: Likewise. * po/Makefile.in: Likewise. * python/Makefile.in: Likewise. * src/Makefile.in: Likewise. * src/atomic.cc: Only define/use _GLIBCXX_ASM_SYMVER if _GLIBCXX_HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT. * src/compatibility.cc: Likewise. * testsuite/Makefile.am (baseline_subdir): Define. (baseline_symbols): Use it. (new-abi-baseline): Likewise. * testsuite/Makefile.in: Regenerate. * config/abi/pre/gnu.ver (GLIBCXX_3.4.5): Enclose duplicates in #ifdef HAVE_SYMVER_RENAMING_RUNTIME_SUPPORT. (GLIBCXX_3.4.6): Likewise. * doc/xml/manual/configure.xml (--enable-symvers): Document sun style. * doc/xml/manual/abi.xml: Fix grammar. (Symbol versioning on the libstdc++.so binary): Fix mapfile path. (Incremental bumping of a library pre-defined macro): Fix c++config path. (Incremental bumping of a library pre-defined macro, _GLIBCPP_VERSION): Likewise. (Matching each specific C++ compiler release to a specific set of C++ include files): Fix acinclude.m4 path. (Prerequisites): Allow for Sun linker on Solaris 2.5+. Use proper link to Configuring. Fix acinclude.m4 path. (Checking Active): Allow for additional symbol versioning styles. Provide Solaris 2 example with pvs -r. (Bibliography): Update Linker and Libraries Guide, C++ Migration Guide entries. gcc: * doc/install.texi (Prerequisites): Document Perl requirement on Solaris 2. (Specific, *-*-solaris2*): Document GNU c++filt requirement. From-SVN: r161696
333 lines
9.1 KiB
Plaintext
333 lines
9.1 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 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_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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#
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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-seperated 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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#
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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_tweaks_dir="cpu/generic"
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error_constants_dir="os/generic"
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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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mep*)
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EXTRA_CXX_FLAGS=-mm
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try_cpu=generic
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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 "${host_cpu}" in
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powerpc* | rs6000)
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cpu_defines_dir=cpu/powerpc
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;;
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esac
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# Set specific CPU overrides for atomic_word_dir and atomic_flags.
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# Most can just use generic.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_cpu}" in
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alpha*)
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atomic_word_dir=cpu/alpha
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;;
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cris*)
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atomic_word_dir=cpu/cris
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;;
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ia64)
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atomic_word_dir=cpu/ia64
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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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powerpc* | rs6000)
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atomic_word_dir=cpu/powerpc
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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=$cpu_include_dir
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fi
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# Set any OS-dependent bits.
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# Set the os_include_dir.
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# Set the error_costants_dir.
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# Set c_model, c_compatibility here.
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# If atomic ops and/or numeric limits are OS-specific rather than
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# CPU-specifc, set those here too.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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case "${host_os}" in
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aix4.[3456789]* | aix[56789]*)
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# We set os_include_dir to os/aix only on AIX 4.3 and newer, but
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# os/aix/atomicity.h works on earlier versions of AIX 4.*, so we
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# explicitly duplicate the directory for 4.[<3].
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os_include_dir="os/aix"
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atomicity_dir="os/aix"
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atomic_word_dir="os/aix"
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OPT_LDFLAGS="-Wl,-G"
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;;
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aix4.*)
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os_include_dir="os/generic"
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atomicity_dir="os/aix"
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atomic_word_dir="os/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="${OPT_LDFLAGS} -no-undefined -bindir \$(bindir)"
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;;
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darwin | darwin[1-7] | darwin[1-7].*)
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# On Darwin, performance is improved if libstdc++ is single-module.
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# Up to at least 10.3.7, -flat_namespace is required for proper
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# treatment of coalesced symbols.
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OPT_LDFLAGS="${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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darwin[89] | darwin[89].* | darwin[1-9][0-9]* )
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# On Darwin, performance is improved if libstdc++ is single-module,
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# and on 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="${OPTIMIZE_CXXFLAGS} -fvisibility-inlines-hidden"
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;;
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esac
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os_include_dir="os/bsd/darwin"
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;;
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*djgpp*) # leading * picks up "msdosdjgpp"
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os_include_dir="os/djgpp"
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error_constants_dir="os/djgpp"
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;;
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freebsd*)
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os_include_dir="os/bsd/freebsd"
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;;
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gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
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if [ "$uclibc" = "yes" ]; then
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os_include_dir="os/uclibc"
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elif [ "$bionic" = "yes" ]; then
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os_include_dir="os/bionic"
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else
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os_include_dir="os/gnu-linux"
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fi
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;;
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hpux*)
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os_include_dir="os/hpux"
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;;
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irix6.5*)
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os_include_dir="os/irix/irix6.5"
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atomicity_dir=os/irix
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atomic_word_dir=os/irix
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;;
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mingw32*)
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os_include_dir="os/mingw32"
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error_constants_dir="os/mingw32"
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OPT_LDFLAGS="${OPT_LDFLAGS} -no-undefined -bindir \$(bindir)"
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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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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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solaris2)
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# This too-vague configuration does not provide enough information
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# to select a ctype include, and thus os_include_dir is a crap shoot.
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echo "Please specify the full version of Solaris, ie. solaris2.9 " 1>&2
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exit 1
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;;
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solaris2.[89] | solaris2.1[0-9])
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os_include_dir="os/solaris/solaris2.7"
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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 "${host}" in
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*-*-linux*)
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case "${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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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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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 -d ${glibcxx_srcdir}/config/abi/post/${try_cpu}-linux-gnu; then
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abi_baseline_pair=${try_cpu}-linux-gnu
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fi
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esac
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case "${host}" in
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arm*-*-linux-*eabi)
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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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i?86-*-solaris2*)
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abi_baseline_pair=i386-solaris2
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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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sparc*-*-solaris2*)
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abi_baseline_pair=sparc-solaris2
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;;
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esac
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