diff options
Diffstat (limited to 'gcc/ada/init.c')
| -rw-r--r-- | gcc/ada/init.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/ada/init.c b/gcc/ada/init.c index c48e244..2bbb601 100644 --- a/gcc/ada/init.c +++ b/gcc/ada/init.c @@ -661,6 +661,28 @@ __gnat_install_handler (void) #include <signal.h> #include <unistd.h> +/* SA_SIGINFO is not supported by default on LynxOS, so all we have + available here is the "sig" argument. On newer LynxOS versions it's + possible to support SA_SIGINFO by setting a kernel configuration macro. + + To wit: + + #define NONPOSIX_SA_HANDLER_PROTO (0) + + This macro must be set to 1 in either sys/bsp.<bspname>/uparam.h + or in the associated uparam.h customization file sys/bsp.<bspname>/xparam.h + (uparam.h includes xparam.h for customization) + + The NONPOSIX_SA_HANDLER_PROTO macro makes it possible to provide + signal-catching function with 'info' and 'context' input parameters + even if SA_SIGINFO flag is not set or it is set for a non-realtime signal. + + It also allows signal-catching function to update thread context even + if SA_UPDATECTX flag is not set. + + This would be useful, but relying on that would transmit the requirement + to users to configure that feature as well, which is undesirable. */ + static void __gnat_error_handler (int sig) { |