| Index: fusl/configure
|
| diff --git a/fusl/configure b/fusl/configure
|
| deleted file mode 100755
|
| index ee217713568ea7d55c5699043efb221a6dc73b54..0000000000000000000000000000000000000000
|
| --- a/fusl/configure
|
| +++ /dev/null
|
| @@ -1,679 +0,0 @@
|
| -#!/bin/sh
|
| -
|
| -usage () {
|
| -cat <<EOF
|
| -Usage: $0 [OPTION]... [VAR=VALUE]... [TARGET]
|
| -
|
| -To assign environment variables (e.g., CC, CFLAGS...), specify them as
|
| -VAR=VALUE. See below for descriptions of some of the useful variables.
|
| -
|
| -Defaults for the options are specified in brackets.
|
| -
|
| -Installation directories:
|
| - --prefix=PREFIX main installation prefix [/usr/local/musl]
|
| - --exec-prefix=EPREFIX installation prefix for executable files [PREFIX]
|
| -
|
| -Fine tuning of the installation directories:
|
| - --bindir=DIR user executables [EPREFIX/bin]
|
| - --libdir=DIR library files for the linker [PREFIX/lib]
|
| - --includedir=DIR include files for the C compiler [PREFIX/include]
|
| - --syslibdir=DIR location for the dynamic linker [/lib]
|
| -
|
| -System types:
|
| - --target=TARGET configure to run on target TARGET [detected]
|
| - --host=HOST same as --target
|
| -
|
| -Optional features:
|
| - --enable-optimize=... optimize listed components for speed over size [auto]
|
| - --enable-debug build with debugging information [disabled]
|
| - --enable-warnings build with recommended warnings flags [disabled]
|
| - --enable-visibility use global visibility options to optimize PIC [auto]
|
| - --enable-wrapper=... build given musl toolchain wrapper [auto]
|
| - --disable-shared inhibit building shared library [enabled]
|
| - --disable-static inhibit building static library [enabled]
|
| -
|
| -Some influential environment variables:
|
| - CC C compiler command [detected]
|
| - CFLAGS C compiler flags [-Os -pipe ...]
|
| - CROSS_COMPILE prefix for cross compiler and tools [none]
|
| - LIBCC compiler runtime library [detected]
|
| -
|
| -Use these variables to override the choices made by configure.
|
| -
|
| -EOF
|
| -exit 0
|
| -}
|
| -
|
| -# Helper functions
|
| -
|
| -quote () {
|
| -tr '\n' ' ' <<EOF | grep '^[-[:alnum:]_=,./:]* $' >/dev/null 2>&1 && { echo "$1" ; return 0 ; }
|
| -$1
|
| -EOF
|
| -printf %s\\n "$1" | sed -e "s/'/'\\\\''/g" -e "1s/^/'/" -e "\$s/\$/'/" -e "s#^'\([-[:alnum:]_,./:]*\)=\(.*\)\$#\1='\2#"
|
| -}
|
| -echo () { printf "%s\n" "$*" ; }
|
| -fail () { echo "$*" ; exit 1 ; }
|
| -fnmatch () { eval "case \"\$2\" in $1) return 0 ;; *) return 1 ;; esac" ; }
|
| -cmdexists () { type "$1" >/dev/null 2>&1 ; }
|
| -trycc () { test -z "$CC" && cmdexists "$1" && CC=$1 ; }
|
| -
|
| -stripdir () {
|
| -while eval "fnmatch '*/' \"\${$1}\"" ; do eval "$1=\${$1%/}" ; done
|
| -}
|
| -
|
| -trycppif () {
|
| -printf "checking preprocessor condition %s... " "$1"
|
| -echo "typedef int x;" > "$tmpc"
|
| -echo "#if $1" >> "$tmpc"
|
| -echo "#error yes" >> "$tmpc"
|
| -echo "#endif" >> "$tmpc"
|
| -if $CC $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "false\n"
|
| -return 1
|
| -else
|
| -printf "true\n"
|
| -return 0
|
| -fi
|
| -}
|
| -
|
| -tryflag () {
|
| -printf "checking whether compiler accepts %s... " "$2"
|
| -echo "typedef int x;" > "$tmpc"
|
| -if $CC $CFLAGS_TRY $2 -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "yes\n"
|
| -eval "$1=\"\${$1} \$2\""
|
| -eval "$1=\${$1# }"
|
| -return 0
|
| -else
|
| -printf "no\n"
|
| -return 1
|
| -fi
|
| -}
|
| -
|
| -tryldflag () {
|
| -printf "checking whether linker accepts %s... " "$2"
|
| -echo "typedef int x;" > "$tmpc"
|
| -if $CC $LDFLAGS_TRY -nostdlib -shared "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "yes\n"
|
| -eval "$1=\"\${$1} \$2\""
|
| -eval "$1=\${$1# }"
|
| -return 0
|
| -else
|
| -printf "no\n"
|
| -return 1
|
| -fi
|
| -}
|
| -
|
| -
|
| -
|
| -# Beginning of actual script
|
| -
|
| -CFLAGS_C99FSE=
|
| -CFLAGS_AUTO=
|
| -CFLAGS_MEMOPS=
|
| -CFLAGS_NOSSP=
|
| -CFLAGS_TRY=
|
| -LDFLAGS_AUTO=
|
| -LDFLAGS_TRY=
|
| -OPTIMIZE_GLOBS=
|
| -prefix=/usr/local/musl
|
| -exec_prefix='$(prefix)'
|
| -bindir='$(exec_prefix)/bin'
|
| -libdir='$(prefix)/lib'
|
| -includedir='$(prefix)/include'
|
| -syslibdir='/lib'
|
| -tools=
|
| -tool_libs=
|
| -target=
|
| -optimize=auto
|
| -debug=no
|
| -warnings=no
|
| -visibility=auto
|
| -shared=auto
|
| -static=yes
|
| -wrapper=auto
|
| -gcc_wrapper=no
|
| -clang_wrapper=no
|
| -
|
| -for arg ; do
|
| -case "$arg" in
|
| ---help) usage ;;
|
| ---prefix=*) prefix=${arg#*=} ;;
|
| ---exec-prefix=*) exec_prefix=${arg#*=} ;;
|
| ---bindir=*) bindir=${arg#*=} ;;
|
| ---libdir=*) libdir=${arg#*=} ;;
|
| ---includedir=*) includedir=${arg#*=} ;;
|
| ---syslibdir=*) syslibdir=${arg#*=} ;;
|
| ---enable-shared|--enable-shared=yes) shared=yes ;;
|
| ---disable-shared|--enable-shared=no) shared=no ;;
|
| ---enable-static|--enable-static=yes) static=yes ;;
|
| ---disable-static|--enable-static=no) static=no ;;
|
| ---enable-optimize) optimize=yes ;;
|
| ---enable-optimize=*) optimize=${arg#*=} ;;
|
| ---disable-optimize) optimize=no ;;
|
| ---enable-debug|--enable-debug=yes) debug=yes ;;
|
| ---disable-debug|--enable-debug=no) debug=no ;;
|
| ---enable-warnings|--enable-warnings=yes) warnings=yes ;;
|
| ---disable-warnings|--enable-warnings=no) warnings=no ;;
|
| ---enable-visibility|--enable-visibility=yes) visibility=yes ;;
|
| ---disable-visibility|--enable-visibility=no) visibility=no ;;
|
| ---enable-wrapper|--enable-wrapper=yes) wrapper=detect ;;
|
| ---enable-wrapper=all) wrapper=yes ; gcc_wrapper=yes ; clang_wrapper=yes ;;
|
| ---enable-wrapper=gcc) wrapper=yes ; gcc_wrapper=yes ;;
|
| ---enable-wrapper=clang) wrapper=yes ; clang_wrapper=yes ;;
|
| ---disable-wrapper|--enable-wrapper=no) wrapper=no ;;
|
| ---enable-gcc-wrapper|--enable-gcc-wrapper=yes) wrapper=yes ; gcc_wrapper=yes ;;
|
| ---disable-gcc-wrapper|--enable-gcc-wrapper=no) wrapper=no ;;
|
| ---enable-*|--disable-*|--with-*|--without-*|--*dir=*|--build=*) ;;
|
| ---host=*|--target=*) target=${arg#*=} ;;
|
| --* ) echo "$0: unknown option $arg" ;;
|
| -CC=*) CC=${arg#*=} ;;
|
| -CFLAGS=*) CFLAGS=${arg#*=} ;;
|
| -CPPFLAGS=*) CPPFLAGS=${arg#*=} ;;
|
| -LDFLAGS=*) LDFLAGS=${arg#*=} ;;
|
| -CROSS_COMPILE=*) CROSS_COMPILE=${arg#*=} ;;
|
| -LIBCC=*) LIBCC=${arg#*=} ;;
|
| -*=*) ;;
|
| -*) target=$arg ;;
|
| -esac
|
| -done
|
| -
|
| -for i in prefix exec_prefix bindir libdir includedir syslibdir ; do
|
| -stripdir $i
|
| -done
|
| -
|
| -#
|
| -# Get a temp filename we can use
|
| -#
|
| -i=0
|
| -set -C
|
| -while : ; do i=$(($i+1))
|
| -tmpc="./conf$$-$PPID-$i.c"
|
| -2>|/dev/null > "$tmpc" && break
|
| -test "$i" -gt 50 && fail "$0: cannot create temporary file $tmpc"
|
| -done
|
| -set +C
|
| -trap 'rm "$tmpc"' EXIT INT QUIT TERM HUP
|
| -
|
| -#
|
| -# Find a C compiler to use
|
| -#
|
| -printf "checking for C compiler... "
|
| -trycc ${CROSS_COMPILE}gcc
|
| -trycc ${CROSS_COMPILE}c99
|
| -trycc ${CROSS_COMPILE}cc
|
| -printf "%s\n" "$CC"
|
| -test -n "$CC" || { echo "$0: cannot find a C compiler" ; exit 1 ; }
|
| -
|
| -printf "checking whether C compiler works... "
|
| -echo "typedef int x;" > "$tmpc"
|
| -if output=$($CC $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" 2>&1) ; then
|
| -printf "yes\n"
|
| -else
|
| -printf "no; compiler output follows:\n%s\n" "$output"
|
| -exit 1
|
| -fi
|
| -
|
| -#
|
| -# Figure out options to force errors on unknown flags.
|
| -#
|
| -tryflag CFLAGS_TRY -Werror=unknown-warning-option
|
| -tryflag CFLAGS_TRY -Werror=unused-command-line-argument
|
| -tryldflag LDFLAGS_TRY -Werror=unknown-warning-option
|
| -tryldflag LDFLAGS_TRY -Werror=unused-command-line-argument
|
| -
|
| -#
|
| -# Need to know if the compiler is gcc or clang to decide which toolchain
|
| -# wrappers to build.
|
| -#
|
| -printf "checking for C compiler family... "
|
| -cc_ver="$(LC_ALL=C $CC -v 2>&1)"
|
| -cc_family=unknown
|
| -if fnmatch '*gcc\ version*' "$cc_ver" ; then
|
| -cc_family=gcc
|
| -elif fnmatch '*clang\ version*' "$cc_ver" ; then
|
| -cc_family=clang
|
| -fi
|
| -echo "$cc_family"
|
| -
|
| -#
|
| -# Figure out toolchain wrapper to build
|
| -#
|
| -if test "$wrapper" = auto -o "$wrapper" = detect ; then
|
| -echo "#include <stdlib.h>" > "$tmpc"
|
| -echo "#if ! __GLIBC__" >> "$tmpc"
|
| -echo "#error no" >> "$tmpc"
|
| -echo "#endif" >> "$tmpc"
|
| -printf "checking for toolchain wrapper to build... "
|
| -if test "$wrapper" = auto && ! $CC -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -echo "none"
|
| -elif test "$cc_family" = gcc ; then
|
| -gcc_wrapper=yes
|
| -echo "gcc"
|
| -elif test "$cc_family" = clang ; then
|
| -clang_wrapper=yes
|
| -echo "clang"
|
| -else
|
| -echo "none"
|
| -if test "$wrapper" = detect ; then
|
| -fail "$0: could not find an appropriate toolchain wrapper"
|
| -fi
|
| -fi
|
| -fi
|
| -
|
| -if test "$gcc_wrapper" = yes ; then
|
| -tools="$tools tools/musl-gcc"
|
| -tool_libs="$tool_libs lib/musl-gcc.specs"
|
| -fi
|
| -if test "$clang_wrapper" = yes ; then
|
| -tools="$tools tools/musl-clang tools/ld.musl-clang"
|
| -fi
|
| -
|
| -#
|
| -# Find the target architecture
|
| -#
|
| -printf "checking target system type... "
|
| -test -n "$target" || target=$($CC -dumpmachine 2>/dev/null) || target=unknown
|
| -printf "%s\n" "$target"
|
| -
|
| -#
|
| -# Convert to just ARCH
|
| -#
|
| -case "$target" in
|
| -# Catch these early to simplify matching for 32-bit archs
|
| -mips64*|powerpc64*) fail "$0: unsupported target \"$target\"" ;;
|
| -arm*) ARCH=arm ;;
|
| -aarch64*) ARCH=aarch64 ;;
|
| -i?86*) ARCH=i386 ;;
|
| -x86_64-x32*|x32*|x86_64*x32) ARCH=x32 ;;
|
| -x86_64*) ARCH=x86_64 ;;
|
| -mips*) ARCH=mips ;;
|
| -microblaze*) ARCH=microblaze ;;
|
| -or1k*) ARCH=or1k ;;
|
| -powerpc*) ARCH=powerpc ;;
|
| -sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
|
| -unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
|
| -*) fail "$0: unknown or unsupported target \"$target\"" ;;
|
| -esac
|
| -
|
| -#
|
| -# Try to get a conforming C99 freestanding environment
|
| -#
|
| -tryflag CFLAGS_C99FSE -std=c99
|
| -tryflag CFLAGS_C99FSE -nostdinc
|
| -tryflag CFLAGS_C99FSE -ffreestanding \
|
| -|| tryflag CFLAGS_C99FSE -fno-builtin
|
| -tryflag CFLAGS_C99FSE -fexcess-precision=standard \
|
| -|| { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; }
|
| -tryflag CFLAGS_C99FSE -frounding-math
|
| -
|
| -#
|
| -# We may use the may_alias attribute if __GNUC__ is defined, so
|
| -# if the compiler defines __GNUC__ but does not provide it,
|
| -# it must be defined away as part of the CFLAGS.
|
| -#
|
| -printf "checking whether compiler needs attribute((may_alias)) suppression... "
|
| -cat > "$tmpc" <<EOF
|
| -typedef int
|
| -#ifdef __GNUC__
|
| -__attribute__((__may_alias__))
|
| -#endif
|
| -x;
|
| -EOF
|
| -if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
|
| - -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "no\n"
|
| -else
|
| -printf "yes\n"
|
| -CFLAGS_C99FSE="$CFLAGS_C99FSE -D__may_alias__="
|
| -fi
|
| -
|
| -#
|
| -# The GNU toolchain defaults to assuming unmarked files need an
|
| -# executable stack, potentially exposing vulnerabilities in programs
|
| -# linked with such object files. Fix this.
|
| -#
|
| -tryflag CFLAGS_C99FSE -Wa,--noexecstack
|
| -
|
| -#
|
| -# Check for options to disable stack protector, which needs to be
|
| -# disabled for a few early-bootstrap translation units. If not found,
|
| -# this is not an error; we assume the toolchain does not do ssp.
|
| -#
|
| -tryflag CFLAGS_NOSSP -fno-stack-protector
|
| -
|
| -#
|
| -# Check for options that may be needed to prevent the compiler from
|
| -# generating self-referential versions of memcpy,, memmove, memcmp,
|
| -# and memset. Really, we should add a check to determine if this
|
| -# option is sufficient, and if not, add a macro to cripple these
|
| -# functions with volatile...
|
| -#
|
| -tryflag CFLAGS_MEMOPS -fno-tree-loop-distribute-patterns
|
| -
|
| -#
|
| -# Enable debugging if requessted.
|
| -#
|
| -test "$debug" = yes && CFLAGS_AUTO=-g
|
| -
|
| -#
|
| -# Preprocess asm files to add extra debugging information if debug is
|
| -# enabled, our assembler supports the needed directives, and the
|
| -# preprocessing script has been written for our architecture.
|
| -#
|
| -printf "checking whether we should preprocess assembly to add debugging information... "
|
| -if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" &&
|
| - test -f "tools/add-cfi.$ARCH.awk" &&
|
| - printf ".file 1 \"srcfile.s\"\n.line 1\n.cfi_startproc\n.cfi_endproc" | $CC -g -x assembler -c -o /dev/null 2>/dev/null -
|
| -then
|
| - ADD_CFI=yes
|
| -else
|
| - ADD_CFI=no
|
| -fi
|
| -printf "%s\n" "$ADD_CFI"
|
| -
|
| -#
|
| -# Possibly add a -O option to CFLAGS and select modules to optimize with
|
| -# -O3 based on the status of --enable-optimize and provided CFLAGS.
|
| -#
|
| -printf "checking for optimization settings... "
|
| -case "x$optimize" in
|
| -xauto)
|
| -if fnmatch '-O*|*\ -O*' "$CFLAGS_AUTO $CFLAGS" ; then
|
| -printf "using provided CFLAGS\n" ;optimize=no
|
| -else
|
| -printf "using defaults\n" ; optimize=yes
|
| -fi
|
| -;;
|
| -xsize|xnone) printf "minimize size\n" ; optimize=size ;;
|
| -xno|x) printf "disabled\n" ; optimize=no ;;
|
| -*) printf "custom\n" ;;
|
| -esac
|
| -
|
| -test "$optimize" = no || tryflag CFLAGS_AUTO -Os || tryflag CFLAGS_AUTO -O2
|
| -test "$optimize" = yes && optimize="internal,malloc,string"
|
| -
|
| -if fnmatch 'no|size' "$optimize" ; then :
|
| -else
|
| -printf "components to be optimized for speed:"
|
| -while test "$optimize" ; do
|
| -case "$optimize" in
|
| -*,*) this=${optimize%%,*} optimize=${optimize#*,} ;;
|
| -*) this=$optimize optimize=
|
| -esac
|
| -printf " $this"
|
| -case "$this" in
|
| -*/*.c) ;;
|
| -*/*) this=$this*.c ;;
|
| -*) this=$this/*.c ;;
|
| -esac
|
| -OPTIMIZE_GLOBS="$OPTIMIZE_GLOBS $this"
|
| -done
|
| -OPTIMIZE_GLOBS=${OPTIMIZE_GLOBS# }
|
| -printf "\n"
|
| -fi
|
| -
|
| -# Always try -pipe
|
| -tryflag CFLAGS_AUTO -pipe
|
| -
|
| -#
|
| -# If debugging is disabled, omit frame pointer. Modern GCC does this
|
| -# anyway on most archs even when debugging is enabled since the frame
|
| -# pointer is no longer needed for debugging.
|
| -#
|
| -if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" ; then :
|
| -else
|
| -tryflag CFLAGS_AUTO -fomit-frame-pointer
|
| -fi
|
| -
|
| -#
|
| -# Modern GCC wants to put DWARF tables (used for debugging and
|
| -# unwinding) in the loaded part of the program where they are
|
| -# unstrippable. These options force them back to debug sections (and
|
| -# cause them not to get generated at all if debugging is off).
|
| -#
|
| -tryflag CFLAGS_AUTO -fno-unwind-tables
|
| -tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
|
| -
|
| -#
|
| -# Attempt to put each function and each data object in its own
|
| -# section. This both allows additional size optimizations at link
|
| -# time and works around a dangerous class of compiler/assembler bugs
|
| -# whereby relative address expressions are constant-folded by the
|
| -# assembler even when one or more of the symbols involved is
|
| -# replaceable. See gas pr 18561 and gcc pr 66609, 68178, etc.
|
| -#
|
| -tryflag CFLAGS_AUTO -ffunction-sections
|
| -tryflag CFLAGS_AUTO -fdata-sections
|
| -
|
| -#
|
| -# On x86, make sure we don't have incompatible instruction set
|
| -# extensions enabled by default. This is bad for making static binaries.
|
| -# We cheat and use i486 rather than i386 because i386 really does not
|
| -# work anyway (issues with atomic ops).
|
| -# Some build environments pass -march and -mtune options via CC, so
|
| -# check both CC and CFLAGS.
|
| -#
|
| -if test "$ARCH" = "i386" ; then
|
| -fnmatch '-march=*|*\ -march=*' "$CC $CFLAGS" || tryldflag CFLAGS_AUTO -march=i486
|
| -fnmatch '-mtune=*|*\ -mtune=*' "$CC $CFLAGS" || tryldflag CFLAGS_AUTO -mtune=generic
|
| -fi
|
| -
|
| -#
|
| -# Even with -std=c99, gcc accepts some constructs which are constraint
|
| -# violations. We want to treat these as errors regardless of whether
|
| -# other purely stylistic warnings are enabled -- especially implicit
|
| -# function declarations, which are a dangerous programming error.
|
| -#
|
| -tryflag CFLAGS_AUTO -Werror=implicit-function-declaration
|
| -tryflag CFLAGS_AUTO -Werror=implicit-int
|
| -tryflag CFLAGS_AUTO -Werror=pointer-sign
|
| -tryflag CFLAGS_AUTO -Werror=pointer-arith
|
| -
|
| -if test "x$warnings" = xyes ; then
|
| -tryflag CFLAGS_AUTO -Wall
|
| -tryflag CFLAGS_AUTO -Wno-parentheses
|
| -tryflag CFLAGS_AUTO -Wno-uninitialized
|
| -tryflag CFLAGS_AUTO -Wno-missing-braces
|
| -tryflag CFLAGS_AUTO -Wno-unused-value
|
| -tryflag CFLAGS_AUTO -Wno-unused-but-set-variable
|
| -tryflag CFLAGS_AUTO -Wno-unknown-pragmas
|
| -tryflag CFLAGS_AUTO -Wno-pointer-to-int-cast
|
| -fi
|
| -
|
| -if test "x$visibility" = xauto ; then
|
| -# This test checks toolchain support for several things:
|
| -# - the -include option
|
| -# - the attributes/pragmas used in vis.h
|
| -# - linking code that takes the address of protected symbols
|
| -# - gcc 3.x bug that wrongly claims declarations mismatch
|
| -printf "checking whether global visibility preinclude works... "
|
| -cat > "$tmpc" <<EOF
|
| -__attribute__((__visibility__("default")))
|
| -extern struct a *const x;
|
| -typedef struct a b;
|
| -extern b *const x;
|
| -b *const x;
|
| -int (*fp)(void);
|
| -int foo(void) { }
|
| -int bar(void) { fp = foo; return foo(); }
|
| -EOF
|
| -if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
|
| - -DSHARED -fPIC -I./src/internal -include vis.h \
|
| - -nostdlib -shared -Wl,-Bsymbolic-functions \
|
| - -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -visibility=yes
|
| -else
|
| -visibility=no
|
| -fi
|
| -printf "%s\n" "$visibility"
|
| -fi
|
| -
|
| -if test "x$visibility" = xyes ; then
|
| -CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h"
|
| -CFLAGS_AUTO="${CFLAGS_AUTO# }"
|
| -fi
|
| -
|
| -# Reduce space lost to padding for alignment purposes by sorting data
|
| -# objects according to their alignment reqirements. This approximates
|
| -# optimal packing.
|
| -tryldflag LDFLAGS_AUTO -Wl,--sort-section,alignment
|
| -tryldflag LDFLAGS_AUTO -Wl,--sort-common
|
| -
|
| -# When linking shared library, drop dummy weak definitions that were
|
| -# replaced by strong definitions from other translation units.
|
| -tryldflag LDFLAGS_AUTO -Wl,--gc-sections
|
| -
|
| -# Some patched GCC builds have these defaults messed up...
|
| -tryldflag LDFLAGS_AUTO -Wl,--hash-style=both
|
| -
|
| -# Prevent linking if there are undefined symbols; if any exist,
|
| -# libc.so will crash at runtime during relocation processing.
|
| -# The common way this can happen is failure to link the compiler
|
| -# runtime library; implementation error is also a possibility.
|
| -tryldflag LDFLAGS_AUTO -Wl,--no-undefined
|
| -
|
| -# Avoid exporting symbols from compiler runtime libraries. They
|
| -# should be hidden anyway, but some toolchains including old gcc
|
| -# versions built without shared library support and pcc are broken.
|
| -tryldflag LDFLAGS_AUTO -Wl,--exclude-libs=ALL
|
| -
|
| -test "$shared" = "no" || {
|
| -# Disable dynamic linking if ld is broken and can't do -Bsymbolic-functions
|
| -LDFLAGS_DUMMY=
|
| -tryldflag LDFLAGS_DUMMY -Wl,-Bsymbolic-functions || {
|
| -test "$shared" = "yes" && fail "$0: error: linker cannot build shared library"
|
| -printf "warning: disabling dynamic linking support\n"
|
| -shared=no
|
| -}
|
| -}
|
| -
|
| -# Find compiler runtime library
|
| -test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh
|
| -test -z "$LIBCC" && tryldflag LIBCC -lcompiler_rt
|
| -test -z "$LIBCC" && try_libcc=`$CC -print-file-name=libpcc.a 2>/dev/null` \
|
| - && tryldflag LIBCC "$try_libcc"
|
| -printf "using compiler runtime libraries: %s\n" "$LIBCC"
|
| -
|
| -# Figure out arch variants for archs with variants
|
| -SUBARCH=
|
| -t="$CFLAGS_C99FSE $CPPFLAGS $CFLAGS"
|
| -
|
| -if test "$ARCH" = "x86_64" ; then
|
| -trycppif __ILP32__ "$t" && ARCH=x32
|
| -fi
|
| -
|
| -if test "$ARCH" = "arm" ; then
|
| -trycppif __ARMEB__ "$t" && SUBARCH=${SUBARCH}eb
|
| -trycppif __ARM_PCS_VFP "$t" && SUBARCH=${SUBARCH}hf
|
| -fi
|
| -
|
| -if test "$ARCH" = "aarch64" ; then
|
| -trycppif __AARCH64EB__ "$t" && SUBARCH=${SUBARCH}_be
|
| -fi
|
| -
|
| -if test "$ARCH" = "mips" ; then
|
| -trycppif "_MIPSEL || __MIPSEL || __MIPSEL__" "$t" && SUBARCH=${SUBARCH}el
|
| -trycppif __mips_soft_float "$t" && SUBARCH=${SUBARCH}-sf
|
| -fi
|
| -
|
| -test "$ARCH" = "microblaze" && trycppif __MICROBLAZEEL__ "$t" \
|
| -&& SUBARCH=${SUBARCH}el
|
| -
|
| -if test "$ARCH" = "sh" ; then
|
| -tryflag CFLAGS_AUTO -Wa,--isa=any
|
| -trycppif __BIG_ENDIAN__ "$t" && SUBARCH=${SUBARCH}eb
|
| -if trycppif "__SH_FPU_ANY__ || __SH4__" "$t" ; then
|
| -# Some sh configurations are broken and replace double with float
|
| -# rather than using softfloat when the fpu is present but only
|
| -# supports single precision. Reject them.
|
| -printf "checking whether compiler's double type is IEEE double... "
|
| -echo 'typedef char dblcheck[(int)sizeof(double)-5];' > "$tmpc"
|
| -if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "yes\n"
|
| -else
|
| -printf "no\n"
|
| -fail "$0: error: compiler's floating point configuration is unsupported"
|
| -fi
|
| -else
|
| -SUBARCH=${SUBARCH}-nofpu
|
| -fi
|
| -if trycppif __SH_FDPIC__ "$t" ; then
|
| -SUBARCH=${SUBARCH}-fdpic
|
| -fi
|
| -fi
|
| -
|
| -test "$SUBARCH" \
|
| -&& printf "configured for %s variant: %s\n" "$ARCH" "$ARCH$SUBARCH"
|
| -
|
| -case "$ARCH$SUBARCH" in
|
| -arm) ASMSUBARCH=el ;;
|
| -*) ASMSUBARCH=$SUBARCH ;;
|
| -esac
|
| -
|
| -#
|
| -# Some archs (powerpc) have different possible long double formats
|
| -# that the compiler can be configured for. The logic for whether this
|
| -# is supported is in bits/float.h; in general, it is not. We need to
|
| -# check for mismatches here or code in printf, strotd, and scanf will
|
| -# be dangerously incorrect because it depends on (1) the macros being
|
| -# correct, and (2) IEEE semantics.
|
| -#
|
| -printf "checking whether compiler's long double definition matches float.h... "
|
| -echo '#include <float.h>' > "$tmpc"
|
| -echo '#if LDBL_MANT_DIG == 53' >> "$tmpc"
|
| -echo 'typedef char ldcheck[9-(int)sizeof(long double)];' >> "$tmpc"
|
| -echo '#endif' >> "$tmpc"
|
| -if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
|
| - -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
|
| -printf "yes\n"
|
| -else
|
| -printf "no\n"
|
| -fail "$0: error: unsupported long double type"
|
| -fi
|
| -
|
| -printf "creating config.mak... "
|
| -
|
| -cmdline=$(quote "$0")
|
| -for i ; do cmdline="$cmdline $(quote "$i")" ; done
|
| -
|
| -exec 3>&1 1>config.mak
|
| -
|
| -
|
| -cat << EOF
|
| -# This version of config.mak was generated by:
|
| -# $cmdline
|
| -# Any changes made here will be lost if configure is re-run
|
| -ARCH = $ARCH
|
| -SUBARCH = $SUBARCH
|
| -ASMSUBARCH = $ASMSUBARCH
|
| -prefix = $prefix
|
| -exec_prefix = $exec_prefix
|
| -bindir = $bindir
|
| -libdir = $libdir
|
| -includedir = $includedir
|
| -syslibdir = $syslibdir
|
| -CC = $CC
|
| -CFLAGS = $CFLAGS
|
| -CFLAGS_AUTO = $CFLAGS_AUTO
|
| -CFLAGS_C99FSE = $CFLAGS_C99FSE
|
| -CFLAGS_MEMOPS = $CFLAGS_MEMOPS
|
| -CFLAGS_NOSSP = $CFLAGS_NOSSP
|
| -CPPFLAGS = $CPPFLAGS
|
| -LDFLAGS = $LDFLAGS
|
| -LDFLAGS_AUTO = $LDFLAGS_AUTO
|
| -CROSS_COMPILE = $CROSS_COMPILE
|
| -LIBCC = $LIBCC
|
| -OPTIMIZE_GLOBS = $OPTIMIZE_GLOBS
|
| -ALL_TOOLS = $tools
|
| -TOOL_LIBS = $tool_libs
|
| -ADD_CFI = $ADD_CFI
|
| -EOF
|
| -test "x$static" = xno && echo "STATIC_LIBS ="
|
| -test "x$shared" = xno && echo "SHARED_LIBS ="
|
| -test "x$cc_family" = xgcc && echo 'WRAPCC_GCC = $(CC)'
|
| -test "x$cc_family" = xclang && echo 'WRAPCC_CLANG = $(CC)'
|
| -exec 1>&3 3>&-
|
| -
|
| -printf "done\n"
|
|
|