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Restrict configuration of the JIT SELinux compatible memory allocator to Linux 

and NetBSD.
This commit is contained in:
Philip.Hazel 2020-04-28 15:29:18 +00:00
parent 56c4bf9095
commit 9ff7f342f8
3 changed files with 27 additions and 9 deletions
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10
CMakeLists.txt
View File

@ -200,8 +200,12 @@ SET(PCRE2_HEAP_MATCH_RECURSE OFF CACHE BOOL
SET(PCRE2_SUPPORT_JIT OFF CACHE BOOL
"Enable support for Just-in-time compiling.")
SET(PCRE2_SUPPORT_JIT_SEALLOC OFF CACHE BOOL
IF(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
SET(PCRE2_SUPPORT_JIT_SEALLOC OFF CACHE BOOL
"Enable SELinux compatible execmem allocator in JIT (experimental).")
ELSE(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
SET(PCRE2_SUPPORT_JIT_SEALLOC IGNORE)
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
SET(PCRE2GREP_SUPPORT_JIT ON CACHE BOOL
"Enable use of Just-in-time compiling in pcre2grep.")
@ -331,8 +335,12 @@ IF(PCRE2_SUPPORT_JIT_SEALLOC)
CHECK_SYMBOL_EXISTS(mkostemp stdlib.h REQUIRED)
UNSET(CMAKE_REQUIRED_DEFINITIONS)
IF(${REQUIRED})
IF(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
ADD_DEFINITIONS(-D_GNU_SOURCE)
SET(SLJIT_PROT_EXECUTABLE_ALLOCATOR 1)
ELSE(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
MESSAGE(FATAL_ERROR "Your configuration is not supported")
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES Linux|NetBSD)
ELSE(${REQUIRED})
SET(PCRE2_SUPPORT_JIT_SEALLOC OFF)
ENDIF(${REQUIRED})

3
ChangeLog
View File

@ -120,6 +120,9 @@ does). Patch by Carlo Marcelo Arenas Belon.
29. Check for the existence of memfd_create in both CMake and configure
configurations. Patch by Carlo Marcelo Arenas Belon.
30. Restrict the configuration setting for the SELinux compatible execmem
allocator (change 10.30/44) to Linux and NetBSD.
Version 10.34 21-November-2019
------------------------------

13
configure.ac
View File

@ -176,11 +176,18 @@ if test "$enable_jit" = "auto"; then
echo checking for JIT support on this hardware... $enable_jit
fi
# Handle --enable-jit-sealloc (disabled by default)
AC_ARG_ENABLE(jit-sealloc,
# Handle --enable-jit-sealloc (disabled by default and only experimental)
case $host_os in
linux* | netbsd*)
AC_ARG_ENABLE(jit-sealloc,
AS_HELP_STRING([--enable-jit-sealloc],
[enable SELinux compatible execmem allocator in JIT (experimental)]),
, enable_jit_sealloc=no)
,enable_jit_sealloc=no)
;;
*)
enable_jit_sealloc=unsupported
;;
esac
# Handle --disable-pcre2grep-jit (enabled by default)
AC_ARG_ENABLE(pcre2grep-jit,