diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 57 |
1 files changed, 43 insertions, 14 deletions
@@ -204,7 +204,7 @@ fi abs_builddir="$(pwd)" || fail "$0: cannot determine working directory" abs_srcdir="$(cd $srcdir && pwd)" || fail "$0: invalid source directory $srcdir" test "$abs_srcdir" = "$abs_builddir" && srcdir=. -test "$srcdir" != "." -a -f Makefile -a ! -h Makefile && fail "$0: Makefile already exists in the working directory" +test "$srcdir" != "." && test -f Makefile && test ! -h Makefile && fail "$0: Makefile already exists in the working directory" # # Get a temp filename we can use @@ -279,7 +279,7 @@ echo "$cc_family" # # Figure out toolchain wrapper to build # -if test "$wrapper" = auto -o "$wrapper" = detect ; then +if test "$wrapper" = auto || test "$wrapper" = detect ; then echo "#include <stdlib.h>" > "$tmpc" echo "#if ! __GLIBC__" >> "$tmpc" echo "#error no" >> "$tmpc" @@ -328,6 +328,7 @@ i?86*) ARCH=i386 ;; x86_64-x32*|x32*|x86_64*x32) ARCH=x32 ;; x86_64-nt64*) ARCH=nt64 ;; x86_64*) ARCH=x86_64 ;; +loongarch64*) ARCH=loongarch64 ;; m68k*) ARCH=m68k ;; mips64*|mipsisa64*) ARCH=mips64 ;; mips*) ARCH=mips ;; @@ -336,6 +337,7 @@ or1k*) ARCH=or1k ;; powerpc64*|ppc64*) ARCH=powerpc64 ;; powerpc*|ppc*) ARCH=powerpc ;; riscv64*) ARCH=riscv64 ;; +riscv32*) ARCH=riscv32 ;; sh[1-9bel-]*|sh|superh*) ARCH=sh ;; s390x*) ARCH=s390x ;; unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;; @@ -354,6 +356,14 @@ tryflag CFLAGS_C99FSE -fexcess-precision=standard \ tryflag CFLAGS_C99FSE -frounding-math # +# Semantically we want to insist that our sources follow the +# C rules for type-based aliasing, but most if not all real-world +# compilers are known or suspected to have critical bugs in their +# type-based aliasing analysis. See for example GCC bug 107107. +# +tryflag CFLAGS_C99FSE -fno-strict-aliasing + +# # We may use the may_alias attribute if __GNUC__ is defined, so # if the compiler defines __GNUC__ but does not provide it, # it must be defined away as part of the CFLAGS. @@ -409,7 +419,7 @@ test "$debug" = yes && CFLAGS_AUTO=-g # 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" && + test -f "$srcdir/tools/add-cfi.$ARCH.awk" && printf ".file 1 \"srcfile.s\"\n.line 1\n.cfi_startproc\n.cfi_endproc" | $CC -g -x assembler -c -o /dev/null 2>/dev/null - then ADD_CFI=yes @@ -436,7 +446,20 @@ xno|x) printf "disabled\n" ; optimize=no ;; *) printf "custom\n" ;; esac -test "$optimize" = no || tryflag CFLAGS_AUTO -Os || tryflag CFLAGS_AUTO -O2 +if test "$optimize" = no ; then : +else +tryflag CFLAGS_AUTO -O2 +tryflag CFLAGS_AUTO -fno-align-jumps +tryflag CFLAGS_AUTO -fno-align-functions +tryflag CFLAGS_AUTO -fno-align-loops +tryflag CFLAGS_AUTO -fno-align-labels +tryflag CFLAGS_AUTO -fira-region=one +tryflag CFLAGS_AUTO -fira-hoist-pressure +tryflag CFLAGS_AUTO -freorder-blocks-algorithm=simple \ +|| tryflag CFLAGS_AUTO -fno-reorder-blocks +tryflag CFLAGS_AUTO -fno-prefetch-loop-arrays +tryflag CFLAGS_AUTO -fno-tree-ch +fi test "$optimize" = yes && optimize="internal,malloc,string" if fnmatch 'no|size' "$optimize" ; then : @@ -468,7 +491,7 @@ tryflag CFLAGS_AUTO -pipe # pointer is no longer needed for debugging. # if fnmatch '-g*|*\ -g*' "$CFLAGS_AUTO $CFLAGS" ; then : -else +else tryflag CFLAGS_AUTO -fomit-frame-pointer fi @@ -650,6 +673,19 @@ if test "$ARCH" = "aarch64" ; then trycppif __AARCH64EB__ "$t" && SUBARCH=${SUBARCH}_be fi +if test "$ARCH" = "loongarch64" ; then +trycppif __loongarch_soft_float "$t" && SUBARCH=${SUBARCH}-sf +trycppif __loongarch_single_float "$t" && SUBARCH=${SUBARCH}-sp +printf "checking whether assembler support FCSRs... " +echo "__asm__(\"movfcsr2gr \$t0,\$fcsr0\");" > "$tmpc" +if $CC -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then +printf "yes\n" +else +printf "no\n" +CFLAGS_AUTO="$CFLAGS_AUTO -DBROKEN_LOONGARCH_FCSR_ASM" +fi +fi + if test "$ARCH" = "m68k" ; then if trycppif "__HAVE_68881__" ; then : ; elif trycppif "__mcffpu__" ; then SUBARCH="-fp64" @@ -671,9 +707,7 @@ trycppif __mips_soft_float "$t" && SUBARCH=${SUBARCH}-sf fi if test "$ARCH" = "powerpc" ; then -trycppif "__NO_FPRS__ && !_SOFT_FLOAT" "$t" && fail \ - "$0: error: compiler's floating point configuration is unsupported" -trycppif _SOFT_FLOAT "$t" && SUBARCH=${SUBARCH}-sf +trycppif "_SOFT_FLOAT || __NO_FPRS__" "$t" && SUBARCH=${SUBARCH}-sf printf "checking whether compiler can use 'd' constraint in asm... " echo 'double f(double x) { __asm__ ("fabs %0, %1" : "=d"(x) : "d"(x)); return x; }' > "$tmpc" if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then @@ -694,7 +728,7 @@ trycppif __LITTLE_ENDIAN__ "$t" && SUBARCH=${SUBARCH}le trycppif _SOFT_FLOAT "$t" && fail "$0: error: soft-float not supported on powerpc64" fi -if test "$ARCH" = "riscv64" ; then +if test "$ARCH" = "riscv64" -o "$ARCH" = "riscv32" ; then trycppif __riscv_float_abi_soft "$t" && SUBARCH=${SUBARCH}-sf trycppif __riscv_float_abi_single "$t" && SUBARCH=${SUBARCH}-sp fi @@ -725,11 +759,6 @@ 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 |