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Provide 3 configurations accessible through ./configure

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This commit is contained in:
Pieter Wuille
2021-12-29 15:09:52 -05:00
parent 5f7be9f6a5
commit ed2a056f3d
7 changed files with 1462 additions and 36 deletions
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35
configure.ac
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@@ -213,13 +213,12 @@ AC_ARG_WITH([ecmult-window], [AS_HELP_STRING([--with-ecmult-window=SIZE|auto],
)],
[req_ecmult_window=$withval], [req_ecmult_window=auto])
AC_ARG_WITH([ecmult-gen-precision], [AS_HELP_STRING([--with-ecmult-gen-precision=2|4|8|auto],
[Precision bits to tune the precomputed table size for signing.]
[The size of the table is 32kB for 2 bits, 64kB for 4 bits, 512kB for 8 bits of precision.]
[A larger table size usually results in possible faster signing.]
["auto" is a reasonable setting for desktop machines (currently 4). [default=auto]]
AC_ARG_WITH([ecmult-gen-kb], [AS_HELP_STRING([--with-ecmult-gen-kb=2|22|86|auto],
[The size of the precomputed table for signing in multiples of 1024 bytes (on typical platforms).]
[Larger values result in possibly better signing/keygeneration performance at the cost of a larger table.]
["auto" is a reasonable setting for desktop machines (currently 22). [default=auto]]
)],
[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto])
[req_ecmult_gen_kb=$withval], [req_ecmult_gen_kb=auto])
AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes|no|auto],
[Build with extra checks for running inside Valgrind [default=auto]]
@@ -358,19 +357,25 @@ case $set_ecmult_window in
;;
esac
# Set ecmult gen precision
if test x"$req_ecmult_gen_precision" = x"auto"; then
set_ecmult_gen_precision=4
# Set ecmult gen kb
if test x"$req_ecmult_gen_kb" = x"auto"; then
set_ecmult_gen_kb=22
else
set_ecmult_gen_precision=$req_ecmult_gen_precision
set_ecmult_gen_kb=$req_ecmult_gen_kb
fi
case $set_ecmult_gen_precision in
2|4|8)
SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DECMULT_GEN_PREC_BITS=$set_ecmult_gen_precision"
case $set_ecmult_gen_kb in
2)
SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=2 -DCOMB_TEETH=5"
;;
22)
SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=11 -DCOMB_TEETH=6"
;;
86)
SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DCOMB_BLOCKS=43 -DCOMB_TEETH=6"
;;
*)
AC_MSG_ERROR(['ecmult gen precision not 2, 4, 8 or "auto"'])
AC_MSG_ERROR(['ecmult gen table size not 2, 22, 86 or "auto"'])
;;
esac
@@ -475,7 +480,7 @@ echo " module ellswift = $enable_module_ellswift"
echo
echo " asm = $set_asm"
echo " ecmult window size = $set_ecmult_window"
echo " ecmult gen prec. bits = $set_ecmult_gen_precision"
echo " ecmult gen table size = $set_ecmult_gen_kb KiB"
# Hide test-only options unless they're used.
if test x"$set_widemul" != xauto; then
echo " wide multiplication = $set_widemul"