From db8edc87e6a1a771336d832a6da02c4760c74100 Mon Sep 17 00:00:00 2001 From: Andreas Schneider Date: Mon, 20 Oct 2014 09:13:36 +0200 Subject: src: Add support for running with address sanitizer. It address sanitzer will complain about our hack with variable function attributes. This disables the checking of it. Signed-off-by: Andreas Schneider Reviewed-by: Guenther Deschner --- ConfigureChecks.cmake | 11 +++++++++++ config.h.cmake | 1 + src/socket_wrapper.c | 8 ++++++++ 3 files changed, 20 insertions(+) diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake index ea0a208..32cd9bb 100644 --- a/ConfigureChecks.cmake +++ b/ConfigureChecks.cmake @@ -194,6 +194,17 @@ int main(void) { return 0; }" HAVE_FUNCTION_ATTRIBUTE_FORMAT) +check_c_source_compiles(" +void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address)); + +void test_address_sanitizer_attribute(void) +{ + return; +} + +int main(void) { + return 0; +}" HAVE_ADDRESS_SANITIZER_ATTRIBUTE) check_library_exists(dl dlopen "" HAVE_LIBDL) if (HAVE_LIBDL) diff --git a/config.h.cmake b/config.h.cmake index 8b66420..91e1206 100644 --- a/config.h.cmake +++ b/config.h.cmake @@ -57,6 +57,7 @@ #cmakedefine HAVE_GCC_THREAD_LOCAL_STORAGE 1 #cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1 +#cmakedefine HAVE_ADDRESS_SANITIZER_ATTRIBUTE 1 #cmakedefine HAVE_SOCKADDR_STORAGE 1 #cmakedefine HAVE_IPV6 1 #cmakedefine HAVE_FUNCTION_ATTRIBUTE_FORMAT 1 diff --git a/src/socket_wrapper.c b/src/socket_wrapper.c index b30303f..82e5737 100644 --- a/src/socket_wrapper.c +++ b/src/socket_wrapper.c @@ -100,6 +100,12 @@ enum swrap_dbglvl_e { #define DESTRUCTOR_ATTRIBUTE #endif +#ifdef HAVE_ADDRESS_SANITIZER_ATTRIBUTE +#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE __attribute__((no_sanitize_address)) +#else +#define DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE +#endif + #ifdef HAVE_GCC_THREAD_LOCAL_STORAGE # define SWRAP_THREAD __thread #else @@ -598,6 +604,7 @@ static int libc_eventfd(int count, int flags) } #endif +DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE static int libc_vfcntl(int fd, int cmd, va_list ap) { long int args[4]; @@ -649,6 +656,7 @@ static int libc_getsockopt(int sockfd, return swrap.fns.libc_getsockopt(sockfd, level, optname, optval, optlen); } +DO_NOT_SANITIZE_ADDRESS_ATTRIBUTE static int libc_vioctl(int d, unsigned long int request, va_list ap) { long int args[4]; -- cgit