diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/mips/configure.ac')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/mips/configure.ac | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/mips/configure.ac b/REORG.TODO/sysdeps/unix/sysv/linux/mips/configure.ac new file mode 100644 index 0000000000..9147aa4582 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/mips/configure.ac @@ -0,0 +1,136 @@ +sinclude(./aclocal.m4)dnl Autoconf lossage +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/unix/sysv/linux/mips. + +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (_MIPS_SIM != _ABIO32) + #error Not O32 ABI + #endif])], + [libc_mips_abi=o32], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (_MIPS_SIM != _ABIN32) + #error Not N32 ABI + #endif])], + [libc_mips_abi=n32], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (_MIPS_SIM != _ABI64) + #error Not 64 ABI + #endif])], + [libc_mips_abi=n64], + [])])]) + +if test -z "$libc_mips_abi"; then + AC_MSG_ERROR([could not determine what ABI the compiler is using]) +fi + +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if !defined(__mips_soft_float) + #error Not soft ABI + #endif])], + [libc_mips_float=soft], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if !defined(__mips_hard_float) + #error Not hard ABI + #endif])], + [libc_mips_float=hard], + [])]) + +if test -z "$libc_mips_float"; then + AC_MSG_ERROR([could not determine if compiler is using hard or soft floating point ABI]) +fi + +libc_mips_o32_fp= +libc_cv_mips_fp64= +libc_cv_mips_modd_spreg= + +if test x"$libc_mips_abi" = xo32 -a x"$libc_mips_float" = xhard; then + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if !defined(__mips_fpr) + #error Missing FPR sizes + #endif])], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 32) + #error Not FP32 + #endif])], + [libc_mips_o32_fp=32], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 0) || !defined(_MIPS_SPFPSET) || (_MIPS_SPFPSET != 16) + #error Not FPXX (without odd single-precision registers) + #endif])], + [libc_mips_o32_fp=xx], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 0) + #error Not FPXX (with odd single precision registers) + #endif])], + [libc_mips_o32_fp=xxo], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 64) || !defined(_MIPS_SPFPSET) || (_MIPS_SPFPSET != 16) + #error Not FP64A + #endif])], + [libc_mips_o32_fp=64a], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 64) + #error Not FP64 + #endif])], + [libc_mips_o32_fp=64], + [])])])])])], + []) + + LIBC_TRY_CC_OPTION([-mfp64], [libc_cv_mips_fp64=yes], [libc_cv_mips_fp64=no]) + LIBC_TRY_CC_OPTION([-Werror -modd-spreg], [libc_cv_mips_modd_spreg=yes], [libc_cv_mips_modd_spreg=no]) +fi +LIBC_CONFIG_VAR([o32-fpabi],[${libc_mips_o32_fp}]) +LIBC_CONFIG_VAR([has-mpf64],[${libc_cv_mips_fp64}]) +LIBC_CONFIG_VAR([has-modd-spreg],[${libc_cv_mips_modd_spreg}]) + +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #include <linux/prctl.h> + #if !defined(PR_GET_FP_MODE) || !defined(PR_SET_FP_MODE) + #error New prctl support for setting FP modes not found + #endif])], + [libc_mips_mode_switch=yes], + [libc_mips_mode_switch=no]) +LIBC_CONFIG_VAR([mips-mode-switch],[${libc_mips_mode_switch}]) + +AC_CACHE_CHECK([whether the compiler is using the 2008 NaN encoding], + libc_cv_mips_nan2008, [AC_EGREP_CPP(yes, [dnl +#ifdef __mips_nan2008 +yes +#endif], libc_cv_mips_nan2008=yes, libc_cv_mips_nan2008=no)]) + +libc_mips_nan= +if test x"$libc_cv_mips_nan2008" = xyes; then + libc_mips_nan=_2008 +fi + +LIBC_CONFIG_VAR([default-abi], + [${libc_mips_abi}_${libc_mips_float}${libc_mips_nan}]) + +case $machine in +mips/mips64/n64/*) + LIBC_SLIBDIR_RTLDDIR([lib64], [lib64]) + ;; +mips/mips64/n32/*) + LIBC_SLIBDIR_RTLDDIR([lib32], [lib32]) + ;; +esac + +libc_cv_gcc_unwind_find_fde=yes + +if test -z "$arch_minimum_kernel"; then + if test x$libc_cv_mips_nan2008 = xyes; then + arch_minimum_kernel=4.5.0 + fi +fi |