AH_TOP([#define LIBSECP256K1_CONFIG_H])
AH_BOTTOM([#endif /*LIBSECP256K1_CONFIG_H*/])
AM_INIT_AUTOMAKE([foreign subdir-objects])
+
+# Set -g if CFLAGS are not already set, which matches the default autoconf
+# behavior (see PROG_CC in the Autoconf manual) with the exception that we don't
+# set -O2 here because we set it in any case (see further down).
+: ${CFLAGS="-g"}
LT_INIT
dnl make the compilation flags quiet unless V=1 is used
AC_PATH_TOOL(STRIP, strip)
AX_PROG_CC_FOR_BUILD
-if test "x$CFLAGS" = "x"; then
- CFLAGS="-O3 -g"
-fi
-
AM_PROG_CC_C_O
AC_PROG_CC_C89
;;
esac
-CFLAGS="$CFLAGS -W"
+CFLAGS="-W $CFLAGS"
warn_CFLAGS="-std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function -Wno-long-long -Wno-overlength-strings"
saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $warn_CFLAGS"
+CFLAGS="$warn_CFLAGS $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
])
saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -fvisibility=hidden"
+CFLAGS="-fvisibility=hidden $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
])
AC_ARG_ENABLE(benchmark,
- AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is no)]),
+ AS_HELP_STRING([--enable-benchmark],[compile benchmark [default=yes]]),
[use_benchmark=$enableval],
- [use_benchmark=no])
+ [use_benchmark=yes])
+
+AC_ARG_ENABLE(coverage,
+ AS_HELP_STRING([--enable-coverage],[enable compiler flags to support kcov coverage analysis [default=no]]),
+ [enable_coverage=$enableval],
+ [enable_coverage=no])
AC_ARG_ENABLE(tests,
- AS_HELP_STRING([--enable-tests],[compile tests (default is yes)]),
+ AS_HELP_STRING([--enable-tests],[compile tests [default=yes]]),
[use_tests=$enableval],
[use_tests=yes])
+AC_ARG_ENABLE(openssl_tests,
+ AS_HELP_STRING([--enable-openssl-tests],[enable OpenSSL tests [default=auto]]),
+ [enable_openssl_tests=$enableval],
+ [enable_openssl_tests=auto])
+
AC_ARG_ENABLE(experimental,
- AS_HELP_STRING([--enable-experimental],[allow experimental configure options (default is no)]),
+ AS_HELP_STRING([--enable-experimental],[allow experimental configure options [default=no]]),
[use_experimental=$enableval],
[use_experimental=no])
+AC_ARG_ENABLE(exhaustive_tests,
+ AS_HELP_STRING([--enable-exhaustive-tests],[compile exhaustive tests [default=yes]]),
+ [use_exhaustive_tests=$enableval],
+ [use_exhaustive_tests=yes])
+
AC_ARG_ENABLE(endomorphism,
- AS_HELP_STRING([--enable-endomorphism],[enable endomorphism (default is no)]),
+ AS_HELP_STRING([--enable-endomorphism],[enable endomorphism [default=no]]),
[use_endomorphism=$enableval],
[use_endomorphism=no])
AC_ARG_ENABLE(ecmult_static_precomputation,
- AS_HELP_STRING([--enable-ecmult-static-precomputation],[enable precomputed ecmult table for signing (default is yes)]),
+ AS_HELP_STRING([--enable-ecmult-static-precomputation],[enable precomputed ecmult table for signing [default=auto]]),
[use_ecmult_static_precomputation=$enableval],
[use_ecmult_static_precomputation=auto])
[enable_module_ecdh=$enableval],
[enable_module_ecdh=no])
-AC_ARG_ENABLE(module_schnorr,
- AS_HELP_STRING([--enable-module-schnorr],[enable Schnorr signature module (experimental)]),
- [enable_module_schnorr=$enableval],
- [enable_module_schnorr=no])
-
AC_ARG_ENABLE(module_recovery,
- AS_HELP_STRING([--enable-module-recovery],[enable ECDSA pubkey recovery module (default is no)]),
+ AS_HELP_STRING([--enable-module-recovery],[enable ECDSA pubkey recovery module [default=no]]),
[enable_module_recovery=$enableval],
[enable_module_recovery=no])
+AC_ARG_ENABLE(external_default_callbacks,
+ AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]),
+ [use_external_default_callbacks=$enableval],
+ [use_external_default_callbacks=no])
+
AC_ARG_ENABLE(jni,
- AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni (default is auto)]),
+ AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni [default=no]]),
[use_jni=$enableval],
- [use_jni=auto])
+ [use_jni=no])
AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=64bit|32bit|auto],
-[Specify Field Implementation. Default is auto])],[req_field=$withval], [req_field=auto])
+[finite field implementation to use [default=auto]])],[req_field=$withval], [req_field=auto])
AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|no|auto],
-[Specify Bignum Implementation. Default is auto])],[req_bignum=$withval], [req_bignum=auto])
+[bignum implementation to use [default=auto]])],[req_bignum=$withval], [req_bignum=auto])
AC_ARG_WITH([scalar], [AS_HELP_STRING([--with-scalar=64bit|32bit|auto],
-[Specify scalar implementation. Default is auto])],[req_scalar=$withval], [req_scalar=auto])
-
-AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto]
-[Specify assembly optimizations to use. Default is auto (experimental: arm)])],[req_asm=$withval], [req_asm=auto])
+[scalar implementation to use [default=auto]])],[req_scalar=$withval], [req_scalar=auto])
+
+AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto],
+[assembly optimizations to use (experimental: arm) [default=auto]])],[req_asm=$withval], [req_asm=auto])
+
+AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto],
+[window size for ecmult precomputation for verification, specified as integer in range [2..24].]
+[Larger values result in possibly better performance at the cost of an exponentially larger precomputed table.]
+[The table will store 2^(SIZE-2) * 64 bytes of data but can be larger in memory due to platform-specific padding and alignment.]
+[If the endomorphism optimization is enabled, two tables of this size are used instead of only one.]
+["auto" is a reasonable setting for desktop machines (currently 15). [default=auto]]
+)],
+[req_ecmult_window=$withval], [req_ecmult_window=auto])
+
+AC_ARG_WITH([ecmult-gen-precision], [AS_HELP_STRING([--with-ecmult-gen-precision=2|4|8|auto],
+[Precision bits to tune the precomputed table size for signing.]
+[The size of the table is 32kB for 2 bits, 64kB for 4 bits, 512kB for 8 bits of precision.]
+[A larger table size usually results in possible faster signing.]
+["auto" is a reasonable setting for desktop machines (currently 4). [default=auto]]
+)],
+[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto])
AC_CHECK_TYPES([__int128])
-AC_MSG_CHECKING([for __builtin_expect])
-AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_expect(0,0);}]])],
- [ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]) ],
- [ AC_MSG_RESULT([no])
- ])
+if test x"$enable_coverage" = x"yes"; then
+ AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])
+ CFLAGS="-O0 --coverage $CFLAGS"
+ LDFLAGS="--coverage $LDFLAGS"
+else
+ CFLAGS="-O2 $CFLAGS"
+fi
if test x"$use_ecmult_static_precomputation" != x"no"; then
+ # Temporarily switch to an environment for the native compiler
save_cross_compiling=$cross_compiling
cross_compiling=no
- TEMP_CC="$CC"
+ SAVE_CC="$CC"
CC="$CC_FOR_BUILD"
- AC_MSG_CHECKING([native compiler: ${CC_FOR_BUILD}])
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS_FOR_BUILD"
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS_FOR_BUILD"
+ SAVE_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS_FOR_BUILD"
+
+ warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
+ AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
+ [ AC_MSG_RESULT([yes]) ],
+ [ AC_MSG_RESULT([no])
+ CFLAGS="$saved_CFLAGS"
+ ])
+
+ AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
AC_RUN_IFELSE(
- [AC_LANG_PROGRAM([], [return 0])],
+ [AC_LANG_PROGRAM([], [])],
[working_native_cc=yes],
[working_native_cc=no],[dnl])
- CC="$TEMP_CC"
+
+ CFLAGS_FOR_BUILD="$CFLAGS"
+
+ # Restore the environment
cross_compiling=$save_cross_compiling
+ CC="$SAVE_CC"
+ CFLAGS="$SAVE_CFLAGS"
+ CPPFLAGS="$SAVE_CPPFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
if test x"$working_native_cc" = x"no"; then
+ AC_MSG_RESULT([no])
set_precomp=no
+ m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
if test x"$use_ecmult_static_precomputation" = x"yes"; then
- AC_MSG_ERROR([${CC_FOR_BUILD} does not produce working binaries. Please set CC_FOR_BUILD])
+ AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
else
- AC_MSG_RESULT([${CC_FOR_BUILD} does not produce working binaries. Please set CC_FOR_BUILD])
+ AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
fi
else
- AC_MSG_RESULT([ok])
+ AC_MSG_RESULT([yes])
set_precomp=yes
fi
else
;;
esac
+#set ecmult window size
+if test x"$req_ecmult_window" = x"auto"; then
+ set_ecmult_window=15
+else
+ set_ecmult_window=$req_ecmult_window
+fi
+
+error_window_size=['window size for ecmult precomputation not an integer in range [2..24] or "auto"']
+case $set_ecmult_window in
+''|*[[!0-9]]*)
+ # no valid integer
+ AC_MSG_ERROR($error_window_size)
+ ;;
+*)
+ if test "$set_ecmult_window" -lt 2 -o "$set_ecmult_window" -gt 24 ; then
+ # not in range
+ AC_MSG_ERROR($error_window_size)
+ fi
+ AC_DEFINE_UNQUOTED(ECMULT_WINDOW_SIZE, $set_ecmult_window, [Set window size for ecmult precomputation])
+ ;;
+esac
+
+#set ecmult gen precision
+if test x"$req_ecmult_gen_precision" = x"auto"; then
+ set_ecmult_gen_precision=4
+else
+ set_ecmult_gen_precision=$req_ecmult_gen_precision
+fi
+
+case $set_ecmult_gen_precision in
+2|4|8)
+ AC_DEFINE_UNQUOTED(ECMULT_GEN_PREC_BITS, $set_ecmult_gen_precision, [Set ecmult gen precision bits])
+ ;;
+*)
+ AC_MSG_ERROR(['ecmult gen precision not 2, 4, 8 or "auto"'])
+ ;;
+esac
+
if test x"$use_tests" = x"yes"; then
SECP_OPENSSL_CHECK
if test x"$has_openssl_ec" = x"yes"; then
- AC_DEFINE(ENABLE_OPENSSL_TESTS, 1, [Define this symbol if OpenSSL EC functions are available])
- SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
- SECP_TEST_LIBS="$CRYPTO_LIBS"
-
- case $host in
- *mingw*)
- SECP_TEST_LIBS="$SECP_TEST_LIBS -lgdi32"
- ;;
- esac
-
+ if test x"$enable_openssl_tests" != x"no"; then
+ AC_DEFINE(ENABLE_OPENSSL_TESTS, 1, [Define this symbol if OpenSSL EC functions are available])
+ SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
+ SECP_TEST_LIBS="$CRYPTO_LIBS"
+
+ case $host in
+ *mingw*)
+ SECP_TEST_LIBS="$SECP_TEST_LIBS -lgdi32"
+ ;;
+ esac
+ fi
+ else
+ if test x"$enable_openssl_tests" = x"yes"; then
+ AC_MSG_ERROR([OpenSSL tests requested but OpenSSL with EC support is not available])
+ fi
+ fi
+else
+ if test x"$enable_openssl_tests" = x"yes"; then
+ AC_MSG_ERROR([OpenSSL tests requested but tests are not enabled])
fi
fi
if test x"$use_jni" != x"no"; then
AX_JNI_INCLUDE_DIR
have_jni_dependencies=yes
- if test x"$enable_module_schnorr" = x"no"; then
- have_jni_dependencies=no
- fi
if test x"$enable_module_ecdh" = x"no"; then
have_jni_dependencies=no
fi
fi
if test "x$have_jni_dependencies" = "xno"; then
if test x"$use_jni" = x"yes"; then
- AC_MSG_ERROR([jni support explicitly requested but headers/dependencies were not found. Enable ECDH and Schnorr and try again.])
+ AC_MSG_ERROR([jni support explicitly requested but headers/dependencies were not found. Enable ECDH and try again.])
fi
AC_MSG_WARN([jni headers/dependencies not found. jni support disabled])
use_jni=no
AC_DEFINE(USE_ENDOMORPHISM, 1, [Define this symbol to use endomorphism optimization])
fi
-if test x"$use_ecmult_static_precomputation" = x"yes"; then
+if test x"$set_precomp" = x"yes"; then
AC_DEFINE(USE_ECMULT_STATIC_PRECOMPUTATION, 1, [Define this symbol to use a statically generated ecmult table])
fi
AC_DEFINE(ENABLE_MODULE_ECDH, 1, [Define this symbol to enable the ECDH module])
fi
-if test x"$enable_module_schnorr" = x"yes"; then
- AC_DEFINE(ENABLE_MODULE_SCHNORR, 1, [Define this symbol to enable the Schnorr signature module])
-fi
-
if test x"$enable_module_recovery" = x"yes"; then
AC_DEFINE(ENABLE_MODULE_RECOVERY, 1, [Define this symbol to enable the ECDSA pubkey recovery module])
fi
AC_DEFINE(USE_EXTERNAL_ASM, 1, [Define this symbol if an external (non-inline) assembly implementation is used])
fi
-AC_MSG_NOTICE([Using static precomputation: $set_precomp])
-AC_MSG_NOTICE([Using assembly optimizations: $set_asm])
-AC_MSG_NOTICE([Using field implementation: $set_field])
-AC_MSG_NOTICE([Using bignum implementation: $set_bignum])
-AC_MSG_NOTICE([Using scalar implementation: $set_scalar])
-AC_MSG_NOTICE([Using endomorphism optimizations: $use_endomorphism])
-AC_MSG_NOTICE([Building ECDH module: $enable_module_ecdh])
-AC_MSG_NOTICE([Building Schnorr signatures module: $enable_module_schnorr])
-AC_MSG_NOTICE([Building ECDSA pubkey recovery module: $enable_module_recovery])
-AC_MSG_NOTICE([Using jni: $use_jni])
+if test x"$use_external_default_callbacks" = x"yes"; then
+ AC_DEFINE(USE_EXTERNAL_DEFAULT_CALLBACKS, 1, [Define this symbol if an external implementation of the default callbacks is used])
+fi
if test x"$enable_experimental" = x"yes"; then
AC_MSG_NOTICE([******])
AC_MSG_NOTICE([WARNING: experimental build])
AC_MSG_NOTICE([Experimental features do not have stable APIs or properties, and may not be safe for production use.])
AC_MSG_NOTICE([Building ECDH module: $enable_module_ecdh])
- AC_MSG_NOTICE([Building Schnorr signatures module: $enable_module_schnorr])
AC_MSG_NOTICE([******])
else
- if test x"$enable_module_schnorr" = x"yes"; then
- AC_MSG_ERROR([Schnorr signature module is experimental. Use --enable-experimental to allow.])
- fi
if test x"$enable_module_ecdh" = x"yes"; then
AC_MSG_ERROR([ECDH module is experimental. Use --enable-experimental to allow.])
fi
AC_SUBST(SECP_LIBS)
AC_SUBST(SECP_TEST_LIBS)
AC_SUBST(SECP_TEST_INCLUDES)
+AM_CONDITIONAL([ENABLE_COVERAGE], [test x"$enable_coverage" = x"yes"])
AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"])
+AM_CONDITIONAL([USE_EXHAUSTIVE_TESTS], [test x"$use_exhaustive_tests" != x"no"])
AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
-AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$use_ecmult_static_precomputation" = x"yes"])
+AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$set_precomp" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"])
-AM_CONDITIONAL([ENABLE_MODULE_SCHNORR], [test x"$enable_module_schnorr" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"])
-AM_CONDITIONAL([USE_JNI], [test x"$use_jni" == x"yes"])
+AM_CONDITIONAL([USE_JNI], [test x"$use_jni" = x"yes"])
AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])
AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])
PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"
AC_OUTPUT
+
+echo
+echo "Build Options:"
+echo " with endomorphism = $use_endomorphism"
+echo " with ecmult precomp = $set_precomp"
+echo " with external callbacks = $use_external_default_callbacks"
+echo " with jni = $use_jni"
+echo " with benchmarks = $use_benchmark"
+echo " with coverage = $enable_coverage"
+echo " module ecdh = $enable_module_ecdh"
+echo " module recovery = $enable_module_recovery"
+echo
+echo " asm = $set_asm"
+echo " bignum = $set_bignum"
+echo " field = $set_field"
+echo " scalar = $set_scalar"
+echo " ecmult window size = $set_ecmult_window"
+echo " ecmult gen prec. bits = $set_ecmult_gen_precision"
+echo
+echo " CC = $CC"
+echo " CFLAGS = $CFLAGS"
+echo " CPPFLAGS = $CPPFLAGS"
+echo " LDFLAGS = $LDFLAGS"
+echo
projects / secp256k1.git / blobdiff