Rusty Russell
10 years ago
3 changed files with 264 additions and 0 deletions
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# =========================================================================== |
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# http://www.gnu.org/software/autoconf-archive/ax_prog_cc_for_build.html |
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# =========================================================================== |
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# |
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# SYNOPSIS |
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# |
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# AX_PROG_CC_FOR_BUILD |
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# |
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# DESCRIPTION |
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# |
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# This macro searches for a C compiler that generates native executables, |
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# that is a C compiler that surely is not a cross-compiler. This can be |
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# useful if you have to generate source code at compile-time like for |
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# example GCC does. |
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# |
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# The macro sets the CC_FOR_BUILD and CPP_FOR_BUILD macros to anything |
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# needed to compile or link (CC_FOR_BUILD) and preprocess (CPP_FOR_BUILD). |
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# The value of these variables can be overridden by the user by specifying |
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# a compiler with an environment variable (like you do for standard CC). |
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# |
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# It also sets BUILD_EXEEXT and BUILD_OBJEXT to the executable and object |
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# file extensions for the build platform, and GCC_FOR_BUILD to `yes' if |
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# the compiler we found is GCC. All these variables but GCC_FOR_BUILD are |
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# substituted in the Makefile. |
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# |
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# LICENSE |
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# |
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# Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org> |
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# |
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# Copying and distribution of this file, with or without modification, are |
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# permitted in any medium without royalty provided the copyright notice |
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# and this notice are preserved. This file is offered as-is, without any |
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# warranty. |
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#serial 8 |
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AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD]) |
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AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl |
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AC_REQUIRE([AC_PROG_CC])dnl |
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AC_REQUIRE([AC_PROG_CPP])dnl |
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AC_REQUIRE([AC_EXEEXT])dnl |
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AC_REQUIRE([AC_CANONICAL_HOST])dnl |
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dnl Use the standard macros, but make them use other variable names |
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dnl |
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pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl |
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pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl |
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pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl |
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pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl |
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pushdef([ac_cv_prog_cc_g], ac_cv_build_prog_cc_g)dnl |
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pushdef([ac_cv_exeext], ac_cv_build_exeext)dnl |
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pushdef([ac_cv_objext], ac_cv_build_objext)dnl |
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pushdef([ac_exeext], ac_build_exeext)dnl |
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pushdef([ac_objext], ac_build_objext)dnl |
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pushdef([CC], CC_FOR_BUILD)dnl |
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pushdef([CPP], CPP_FOR_BUILD)dnl |
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pushdef([CFLAGS], CFLAGS_FOR_BUILD)dnl |
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pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl |
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pushdef([LDFLAGS], LDFLAGS_FOR_BUILD)dnl |
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pushdef([host], build)dnl |
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pushdef([host_alias], build_alias)dnl |
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pushdef([host_cpu], build_cpu)dnl |
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pushdef([host_vendor], build_vendor)dnl |
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pushdef([host_os], build_os)dnl |
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pushdef([ac_cv_host], ac_cv_build)dnl |
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pushdef([ac_cv_host_alias], ac_cv_build_alias)dnl |
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pushdef([ac_cv_host_cpu], ac_cv_build_cpu)dnl |
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pushdef([ac_cv_host_vendor], ac_cv_build_vendor)dnl |
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pushdef([ac_cv_host_os], ac_cv_build_os)dnl |
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pushdef([ac_cpp], ac_build_cpp)dnl |
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pushdef([ac_compile], ac_build_compile)dnl |
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pushdef([ac_link], ac_build_link)dnl |
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save_cross_compiling=$cross_compiling |
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save_ac_tool_prefix=$ac_tool_prefix |
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cross_compiling=no |
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ac_tool_prefix= |
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AC_PROG_CC |
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AC_PROG_CPP |
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AC_EXEEXT |
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ac_tool_prefix=$save_ac_tool_prefix |
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cross_compiling=$save_cross_compiling |
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dnl Restore the old definitions |
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dnl |
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popdef([ac_link])dnl |
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popdef([ac_compile])dnl |
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popdef([ac_cpp])dnl |
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popdef([ac_cv_host_os])dnl |
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popdef([ac_cv_host_vendor])dnl |
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popdef([ac_cv_host_cpu])dnl |
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popdef([ac_cv_host_alias])dnl |
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popdef([ac_cv_host])dnl |
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popdef([host_os])dnl |
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popdef([host_vendor])dnl |
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popdef([host_cpu])dnl |
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popdef([host_alias])dnl |
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popdef([host])dnl |
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popdef([LDFLAGS])dnl |
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popdef([CPPFLAGS])dnl |
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popdef([CFLAGS])dnl |
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popdef([CPP])dnl |
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popdef([CC])dnl |
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popdef([ac_objext])dnl |
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popdef([ac_exeext])dnl |
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popdef([ac_cv_objext])dnl |
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popdef([ac_cv_exeext])dnl |
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popdef([ac_cv_prog_cc_g])dnl |
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popdef([ac_cv_prog_cc_cross])dnl |
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popdef([ac_cv_prog_cc_works])dnl |
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popdef([ac_cv_prog_gcc])dnl |
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popdef([ac_cv_prog_CPP])dnl |
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dnl Finally, set Makefile variables |
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dnl |
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BUILD_EXEEXT=$ac_build_exeext |
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BUILD_OBJEXT=$ac_build_objext |
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AC_SUBST(BUILD_EXEEXT)dnl |
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AC_SUBST(BUILD_OBJEXT)dnl |
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AC_SUBST([CFLAGS_FOR_BUILD])dnl |
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AC_SUBST([CPPFLAGS_FOR_BUILD])dnl |
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AC_SUBST([LDFLAGS_FOR_BUILD])dnl |
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]) |
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@ -0,0 +1,65 @@ |
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dnl libsecp25k1 helper checks |
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AC_DEFUN([SECP_INT128_CHECK],[ |
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has_int128=$ac_cv_type___int128 |
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]) |
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dnl |
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AC_DEFUN([SECP_64BIT_ASM_CHECK],[ |
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AC_MSG_CHECKING(for x86_64 assembly availability) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
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#include <stdint.h>]],[[ |
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uint64_t a = 11, tmp; |
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__asm__ __volatile__("movq $0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); |
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]])],[has_64bit_asm=yes],[has_64bit_asm=no]) |
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AC_MSG_RESULT([$has_64bit_asm]) |
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]) |
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dnl |
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AC_DEFUN([SECP_OPENSSL_CHECK],[ |
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has_libcrypto=no |
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m4_ifdef([PKG_CHECK_MODULES],[ |
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PKG_CHECK_MODULES([CRYPTO], [libcrypto], [has_libcrypto=yes],[has_libcrypto=no]) |
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if test x"$has_libcrypto" = x"yes"; then |
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TEMP_LIBS="$LIBS" |
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LIBS="$LIBS $CRYPTO_LIBS" |
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AC_CHECK_LIB(crypto, main,[AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])],[has_libcrypto=no]) |
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LIBS="$TEMP_LIBS" |
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fi |
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]) |
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if test x$has_libcrypto = xno; then |
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AC_CHECK_HEADER(openssl/crypto.h,[ |
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AC_CHECK_LIB(crypto, main,[ |
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has_libcrypto=yes |
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CRYPTO_LIBS=-lcrypto |
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AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed]) |
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]) |
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]) |
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LIBS= |
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fi |
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if test x"$has_libcrypto" = x"yes" && test x"$has_openssl_ec" = x; then |
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AC_MSG_CHECKING(for EC functions in libcrypto) |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
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#include <openssl/ec.h> |
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#include <openssl/ecdsa.h> |
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#include <openssl/obj_mac.h>]],[[ |
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EC_KEY *eckey = EC_KEY_new_by_curve_name(NID_secp256k1); |
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ECDSA_sign(0, NULL, 0, NULL, NULL, eckey); |
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ECDSA_verify(0, NULL, 0, NULL, 0, eckey); |
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EC_KEY_free(eckey); |
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]])],[has_openssl_ec=yes],[has_openssl_ec=no]) |
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AC_MSG_RESULT([$has_openssl_ec]) |
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fi |
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]) |
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dnl |
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AC_DEFUN([SECP_GMP_CHECK],[ |
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if test x"$has_gmp" != x"yes"; then |
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CPPFLAGS_TEMP="$CPPFLAGS" |
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CPPFLAGS="$GMP_CPPFLAGS $CPPFLAGS" |
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LIBS_TEMP="$LIBS" |
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LIBS="$GMP_LIBS $LIBS" |
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AC_CHECK_HEADER(gmp.h,[AC_CHECK_LIB(gmp, __gmpz_init,[has_gmp=yes; GMP_LIBS="$GMP_LIBS -lgmp"; AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])])]) |
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CPPFLAGS="$CPPFLAGS_TEMP" |
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LIBS="$LIBS_TEMP" |
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fi |
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]) |
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@ -0,0 +1,74 @@ |
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/**********************************************************************
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* Copyright (c) 2013, 2014, 2015 Thomas Daede, Cory Fields * |
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* Distributed under the MIT software license, see the accompanying * |
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* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
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**********************************************************************/ |
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#define USE_BASIC_CONFIG 1 |
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#include "basic-config.h" |
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#include "include/secp256k1.h" |
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#include "field_impl.h" |
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#include "scalar_impl.h" |
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#include "group_impl.h" |
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#include "ecmult_gen_impl.h" |
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static void default_error_callback_fn(const char* str, void* data) { |
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(void)data; |
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fprintf(stderr, "[libsecp256k1] internal consistency check failed: %s\n", str); |
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abort(); |
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} |
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static const secp256k1_callback default_error_callback = { |
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default_error_callback_fn, |
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NULL |
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}; |
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int main(int argc, char **argv) { |
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secp256k1_ecmult_gen_context ctx; |
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int inner; |
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int outer; |
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FILE* fp; |
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(void)argc; |
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(void)argv; |
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fp = fopen("src/ecmult_static_context.h","w"); |
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if (fp == NULL) { |
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fprintf(stderr, "Could not open src/ecmult_static_context.h for writing!\n"); |
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return -1; |
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} |
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fprintf(fp, "#ifndef _SECP256K1_ECMULT_STATIC_CONTEXT_\n"); |
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fprintf(fp, "#define _SECP256K1_ECMULT_STATIC_CONTEXT_\n"); |
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fprintf(fp, "#include \"group.h\"\n"); |
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fprintf(fp, "#define SC SECP256K1_GE_STORAGE_CONST\n"); |
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fprintf(fp, "static const secp256k1_ge_storage secp256k1_ecmult_static_context[64][16] = {\n"); |
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secp256k1_ecmult_gen_context_init(&ctx); |
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secp256k1_ecmult_gen_context_build(&ctx, &default_error_callback); |
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for(outer = 0; outer != 64; outer++) { |
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fprintf(fp,"{\n"); |
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for(inner = 0; inner != 16; inner++) { |
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fprintf(fp," SC(%uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu, %uu)", SECP256K1_GE_STORAGE_CONST_GET((*ctx.prec)[outer][inner])); |
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if (inner != 15) { |
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fprintf(fp,",\n"); |
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} else { |
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fprintf(fp,"\n"); |
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} |
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} |
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if (outer != 63) { |
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fprintf(fp,"},\n"); |
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} else { |
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fprintf(fp,"}\n"); |
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} |
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} |
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fprintf(fp,"};\n"); |
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secp256k1_ecmult_gen_context_clear(&ctx); |
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fprintf(fp, "#undef SC\n"); |
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fprintf(fp, "#endif\n"); |
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fclose(fp); |
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return 0; |
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} |
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