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add nomath option for builds without a math library

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This commit is contained in:
JacobBarthelmeh
2023-04-12 15:33:59 -07:00
parent 2c26b068b2
commit 26a0142f51
2 changed files with 25 additions and 1 deletions
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21
configure.ac
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@ -536,6 +536,25 @@ fi
# MATH LIBRARY SELECTION # MATH LIBRARY SELECTION
# no math library
AC_ARG_ENABLE([nomath],
[AS_HELP_STRING([--enable-nomath],[Enable no math library (default: disabled)])],
[ ENABLED_NOMATH=$enableval ],
[ ENABLED_NOMATH="no" ]
)
if test "$ENABLED_NOMATH" = "yes"
then
DEF_SP_MATH="no"
DEF_FAST_MATH="no"
ENABLED_SP_MATH_DEFAULT=no
AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_NO_MATH"
ENABLED_HEAPMATH="no"
ENABLED_SP="no"
ENABLED_SP_MATH_ALL="no"
fi
# Single Precision maths implementation # Single Precision maths implementation
AC_ARG_ENABLE([sp], AC_ARG_ENABLE([sp],
[AS_HELP_STRING([--enable-sp],[Enable Single Precision maths implementation (default: disabled)])], [AS_HELP_STRING([--enable-sp],[Enable Single Precision maths implementation (default: disabled)])],
@ -671,7 +690,7 @@ AC_ARG_ENABLE([heapmath],
[ ENABLED_HEAPMATH=$enableval ], [ ENABLED_HEAPMATH=$enableval ],
[ ENABLED_HEAPMATH=no] [ ENABLED_HEAPMATH=no]
) )
if test "x$ENABLED_HEAPMATH" = "xyes" || (test "x$ENABLED_SP_MATH_ALL" = "xno" && test "x$ENABLED_FASTMATH" = "xno" && test "x$ENABLED_SP_MATH" = "xno") if test "x$ENABLED_HEAPMATH" = "xyes" || (test "x$ENABLED_NOMATH" = "xno" && test "x$ENABLED_SP_MATH_ALL" = "xno" && test "x$ENABLED_FASTMATH" = "xno" && test "x$ENABLED_SP_MATH" = "xno")
then then
AM_CFLAGS="$AM_CFLAGS -DUSE_INTEGER_HEAP_MATH" AM_CFLAGS="$AM_CFLAGS -DUSE_INTEGER_HEAP_MATH"
ENABLED_HEAPMATH="yes" ENABLED_HEAPMATH="yes"

5
wolfssl/wolfcrypt/settings.h
View File

@ -2036,6 +2036,11 @@ extern void uITRON4_free(void *p) ;
* Constant time: Not supported * Constant time: Not supported
* Enable: USE_INTEGER_HEAP_MATH * Enable: USE_INTEGER_HEAP_MATH
*/ */
#elif defined(WOLFSSL_NO_MATH)
/* 5) No math library compiled in
* Does not support any public key operations or algorithms that
* require the math library.
*/
#else #else
/* default is SP Math. */ /* default is SP Math. */
#define WOLFSSL_SP_MATH_ALL #define WOLFSSL_SP_MATH_ALL