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Diffstat (limited to 'gcc/ada/sigtramp.h')
| -rw-r--r-- | gcc/ada/sigtramp.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gcc/ada/sigtramp.h b/gcc/ada/sigtramp.h new file mode 100644 index 00000000000..5e3cc5b77c9 --- /dev/null +++ b/gcc/ada/sigtramp.h @@ -0,0 +1,56 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * S I G T R A M P * + * * + * C Header File * + * * + * Copyright (C) 2011, Free Software Foundation, Inc. * + * * + * GNAT is free software; you can redistribute it and/or modify it under * + * terms of the GNU General Public License as published by the Free Soft- * + * ware Foundation; either version 3, or (at your option) any later ver- * + * sion. GNAT is distributed in the hope that it will be useful, but WITH- * + * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * + * or FITNESS FOR A PARTICULAR PURPOSE. * + * * + * As a special exception under Section 7 of GPL version 3, you are granted * + * additional permissions described in the GCC Runtime Library Exception, * + * version 3.1, as published by the Free Software Foundation. * + * * + * In particular, you can freely distribute your programs built with the * + * GNAT Pro compiler, including any required library run-time units, using * + * any licensing terms of your choosing. See the AdaCore Software License * + * for full details. * + * * + * GNAT was originally developed by the GNAT team at New York University. * + * Extensive contributions were provided by Ada Core Technologies Inc. * + * * + ****************************************************************************/ + +/* On targets where this is implemented, we resort to a signal handler + trampoline to set-up the DWARF Call Frame Information that let unwinders + walk through the signal frame up into the interrupted application code. + This file introduces the relevant declarations. */ + +/* This file should only be #included on targets that do implement the + trampoline, which needs to expose the following interface: */ + +#ifdef __cplusplus +extern "C" { +#endif + + typedef void sighandler_t (int signo, void *siginfo, void *sigcontext); + + void __gnat_sigtramp (int signo, void *siginfo, void *sigcontext, + sighandler_t * handler); + + /* To be called from an established signal handler. Setup the DWARF CFI + bits letting unwinders walk through the signal frame up into the + interrupted application code, and then call HANDLER (SIGNO, SIGINFO, + SIGCONTEXT). */ + +#ifdef __cplusplus +} +#endif |