ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/libs/pcre2/Config.in b/package/libs/pcre2/Config.in
new file mode 100644
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+++ b/package/libs/pcre2/Config.in
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+config PCRE2_JIT_ENABLED
+ bool
+ depends on PACKAGE_libpcre2 && (aarch64 || aarch64_be || arm || i386 || i686 || x86_64 || mips || mipsel || mips64 || mips64el || powerpc || powerpc64 || powerpcle || sparc)
+ default y if (arm || i686 || x86_64)
+ prompt "Enable JIT compiler support"
+ help
+ Enable JIT (Just-In-Time) compiler support.
+
+ Just-in-time compiling is a heavyweight optimization that can greatly
+ speed up pattern matching. However, it comes at the cost of extra
+ processing before the match is performed, so it is of most benefit when
+ the same pattern is going to be matched many times. This does not
+ necessarily mean many calls of a matching function; if the pattern is
+ not anchored, matching attempts may take place many times at various
+ positions in the subject, even for a single call. Therefore, if the
+ subject string is very long, it may still pay to use JIT even for
+ one-off matches. JIT support is available for all of the 8-bit, 16-bit
+ and 32-bit PCRE2 libraries and adds about 100KB to the resulting
+ libpcre2.so. JIT support applies only to the traditional Perl-compatible
+ matching function. It does not apply when the DFA matching function is
+ being used.
+
+ Enabling this option can give an about 10x performance increase on JIT
+ operations. It can be desireable for e.g. high performance Apache
+ mod_rewrite or HA-Proxy reqrep operations.
+
+ However, JIT should _only_ be enabled on architectures that are supported.
+ Enabling JIT on unsupported platforms will result in a compilation
+ failure. A list of supported architectures can be found here:
+ https://pcre.org/current/doc/html/pcre2jit.html#SEC2