diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/configure.ac')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/configure.ac | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/configure.ac b/sysdeps/unix/sysv/linux/mips/configure.ac index c3f217a34f..5039ec969f 100644 --- a/sysdeps/unix/sysv/linux/mips/configure.ac +++ b/sysdeps/unix/sysv/linux/mips/configure.ac @@ -44,6 +44,59 @@ if test -z "$libc_mips_float"; then AC_MSG_ERROR([could not determine if compiler is using hard or soft floating point ABI]) fi +libc_mips_o32_fp= + +if test x"$libc_mips_abi" = xo32 -a x"$libc_mips_float" = xhard; then + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if !defined(__mips_fpr) + #error Missing FPR sizes + #endif])], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 32) + #error Not FP32 + #endif])], + [libc_mips_o32_fp=32], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 0) || !defined(_MIPS_SPFPSET) || (_MIPS_SPFPSET != 16) + #error Not FPXX (without odd single-precision registers) + #endif])], + [libc_mips_o32_fp=xx], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 0) + #error Not FPXX (with odd single precision registers) + #endif])], + [libc_mips_o32_fp=xxo], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 64) || !defined(_MIPS_SPFPSET) || (_MIPS_SPFPSET != 16) + #error Not FP64A + #endif])], + [libc_mips_o32_fp=64a], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ + #if (__mips_fpr != 64) + #error Not FP64 + #endif])], + [libc_mips_o32_fp=64], + [])])])])])], + []) +fi +LIBC_CONFIG_VAR([o32-fpabi],[${libc_mips_o32_fp}]) + +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 |