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Move extra size checks behind a config flag.

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This will let us turn that flag into a generic "turn on runtime checks" flag
that guards other functionality we have planned.
This commit is contained in:
David Goldblatt
2019-03-19 16:04:35 -07:00
committed by David Goldblatt
parent 7f7935cf78
commit f4d24f05e1
4 changed files with 40 additions and 22 deletions
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22
configure.ac
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@@ -1418,22 +1418,22 @@ if test "x$enable_readlinkat" = "x1" ; then
fi
AC_SUBST([enable_readlinkat])
dnl Avoid the extra size checking by default
AC_ARG_ENABLE([extra-size-check],
[AS_HELP_STRING([--enable-extra-size-check],
[Perform additonal size related sanity checks])],
[if test "x$enable_extra_size_check" = "xno" ; then
enable_extra_size_check="0"
dnl Avoid extra safety checks by default
AC_ARG_ENABLE([opt-safety-checks],
[AS_HELP_STRING([--enable-opt-safety-checks],
[Perform certain low-overhead checks, even in opt mode])],
[if test "x$enable_opt_safety_checks" = "xno" ; then
enable_opt_safety_checks="0"
else
enable_extra_size_check="1"
enable_opt_safety_checks="1"
fi
],
[enable_extra_size_check="0"]
[enable_opt_safety_checks="0"]
)
if test "x$enable_extra_size_check" = "x1" ; then
AC_DEFINE([JEMALLOC_EXTRA_SIZE_CHECK], [ ])
if test "x$enable_opt_safety_checks" = "x1" ; then
AC_DEFINE([JEMALLOC_OPT_SAFETY_CHECKS], [ ])
fi
AC_SUBST([enable_extra_size_check])
AC_SUBST([enable_opt_safety_checks])
JE_COMPILABLE([a program using __builtin_unreachable], [
void foo (void) {