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| author | Joel Sherrill <joel.sherrill@oarcorp.com> | 2014-08-20 18:47:02 -0500 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2014-08-20 18:47:02 -0500 |
| commit | 57871880b203d1225065640dbe8c16aa6d0f3c62 (patch) | |
| tree | 4b5eef8734ee5f02c93c032f850c6d38951f2577 | |
| parent | mpc55xx/misc/flash_support.c: Properly flush cache when writing. (diff) | |
| download | rtems-57871880b203d1225065640dbe8c16aa6d0f3c62.tar.bz2 | |
Add configuration to detect toolset has sigaltstack() prototype
| -rw-r--r-- | cpukit/configure.ac | 12 | ||||
| -rw-r--r-- | cpukit/libnetworking/rtems/rtems_bsdnet_internal.h | 10 |
2 files changed, 18 insertions, 4 deletions
diff --git a/cpukit/configure.ac b/cpukit/configure.ac index 56815e224a..fcf3437a1b 100644 --- a/cpukit/configure.ac +++ b/cpukit/configure.ac @@ -116,6 +116,12 @@ RTEMS_CHECK_FUNC([pthread_getattr_np],[ #include <pthread.h>]) AC_CHECK_HEADERS([sys/cpuset.h]) +# This was added to newlib in August 2014 to improve conformance. +# Disable use of internal definition if it is present. +RTEMS_CHECK_FUNC([sigaltstack],[ + #define _GNU_SOURCE + #include <signal.h>]) + # Mandated by POSIX, not declared in some versions of newlib. AC_CHECK_DECLS([getrusage],,,[#include sys/resource.h]) @@ -236,6 +242,12 @@ RTEMS_CPUOPT([__RTEMS_HAVE_SYS_CPUSET_H__], [1], [indicate if <sys/cpuset.h> is present in toolset]) +## Header file differences that need to be known in .h after install +RTEMS_CPUOPT([__RTEMS_HAVE_DECL_SIGALTSTACK__], + [test x"${ac_cv_have_decl_sigaltstack}" = x"yes"], + [1], + [indicate if <signal.h> in toolset has sigaltstack()]) + ## This improves both the size and coverage analysis. RTEMS_CPUOPT([__RTEMS_DO_NOT_INLINE_THREAD_ENABLE_DISPATCH__], [test x"${RTEMS_DO_NOT_INLINE_THREAD_ENABLE_DISPATCH}" = x"1"], diff --git a/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h b/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h index 05e54b272f..567cc8ab3a 100644 --- a/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h +++ b/cpukit/libnetworking/rtems/rtems_bsdnet_internal.h @@ -83,11 +83,13 @@ typedef quad_t * qaddr_t; typedef void __sighandler_t(int); typedef __sighandler_t *sig_t; /* type of pointer to a signal function */ #define NSIG 32 -struct sigaltstack { - char *ss_sp; /* signal stack base */ - int ss_size; /* signal stack length */ - int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */ +#if (__RTEMS_HAVE_DECL_SIGALTSTACK__ == 0) +struct sigaltstack { + char *ss_sp; /* signal stack base */ + int ss_size; /* signal stack length */ + int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */ }; +#endif #ifdef _KERNEL typedef int boolean_t; |