re2c: update to 2.0

CVE patch dropped as a backport present in the nre release.

RP: Remove dropped CVE patch
(From OE-Core rev: aec5bccc175e8ec7422095abe8ea86f99f74ad50)

Signed-off-by: Oleksandr Kravchuk <open.source@oleksandr-kravchuk.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/re2c/re2c/CVE-2020-11958.patch

@@ -1,41 +0,0 @@
-From c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a Mon Sep 17 00:00:00 2001
-From: Ulya Trofimovich <skvadrik@gmail.com>
-Date: Fri, 17 Apr 2020 22:47:14 +0100
-Subject: [PATCH] Fix crash in lexer refill (reported by Agostino Sarubbo).
-
-The crash happened in a rare case of a very long lexeme that doen't fit
-into the buffer, forcing buffer reallocation.
-
-The crash was caused by an incorrect calculation of the shift offset
-(it was smaller than necessary). As a consequence, the data from buffer
-start and up to the beginning of the current lexeme was not discarded
-(as it should have been), resulting in less free space for new data than
-expected.
-
-Upstream-Status: Backport [https://github.com/skvadrik/re2c/commit/c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a]
-CVE: CVE-2020-11958
-Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
----
- src/parse/scanner.cc | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/src/parse/scanner.cc b/src/parse/scanner.cc
-index 1d6e9efa..bd651314 100644
---- a/src/parse/scanner.cc
-+++ b/src/parse/scanner.cc
-@@ -155,13 +155,14 @@ bool Scanner::fill(size_t need)
-         if (!buf) fatal("out of memory");
- 
-         memmove(buf, tok, copy);
--        shift_ptrs_and_fpos(buf - bot);
-+        shift_ptrs_and_fpos(buf - tok);
-         delete [] bot;
-         bot = buf;
- 
-         free = BSIZE - copy;
-     }
- 
-+    DASSERT(lim + free <= bot + BSIZE);
-     if (!read(free)) {
-         eof = lim;
-         memset(lim, 0, YYMAXFILL);

meta/recipes-support/re2c/re2c_2.0.bb

@@ -5,10 +5,8 @@ SECTION = "devel"
 LICENSE = "PD"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=64eca4d8a3b67f9dc7656094731a2c8d"
 
-SRC_URI = "https://github.com/skvadrik/re2c/releases/download/${PV}/${BPN}-${PV}.tar.xz \
+SRC_URI = "https://github.com/skvadrik/re2c/releases/download/${PV}/${BPN}-${PV}.tar.xz"
-           file://CVE-2020-11958.patch \
+SRC_URI[sha256sum] = "89a9d7ee14be10e3779ea7b2c8ea4a964afce6e76b8dbcd5479940681db46d20"
-"
-SRC_URI[sha256sum] = "f37f25ff760e90088e7d03d1232002c2c2672646d5844fdf8e0d51a5cd75a503"
 UPSTREAM_CHECK_URI = "https://github.com/skvadrik/re2c/releases"
 
 BBCLASSEXTEND = "native nativesdk"