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Diffstat (limited to 'gcc/ada/sigtramp-android.c')
| -rw-r--r-- | gcc/ada/sigtramp-android.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/gcc/ada/sigtramp-android.c b/gcc/ada/sigtramp-android.c new file mode 100644 index 0000000..2fd42ba --- /dev/null +++ b/gcc/ada/sigtramp-android.c @@ -0,0 +1,79 @@ +/**************************************************************************** + * * + * GNAT COMPILER COMPONENTS * + * * + * S I G T R A M P * + * * + * C/Asm Implementation File * + * * + * Copyright (C) 2015-2024, 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. * + * * + ****************************************************************************/ + +/************************************************** + * Android version of the __gnat_sigtramp service * + **************************************************/ + +#include "sigtramp.h" + +/* The ARM port relies on CFI info setup here. Others such as aarch64 + rely on kernel CFI and may relay to the handler directly. */ + +#if defined(__arm__) +#define __SETUP_CFI 1 +#else +#define __SETUP_CFI 0 +#endif + +#if __SETUP_CFI + +/* Craft a sigtramp stub providing unwind info for common registers. */ + +#define TRAMP_COMMON __gnat_sigtramp_common +extern void TRAMP_COMMON + (int signo, void *siginfo, void *sigcontext, + __sigtramphandler_t * handler); + +#include <sys/ucontext.h> + +void __gnat_sigtramp (int signo, void *si, void *ucontext, + __sigtramphandler_t * handler) +{ + struct sigcontext *mcontext = &((ucontext_t *) ucontext)->uc_mcontext; + TRAMP_COMMON (signo, si, mcontext, handler); +} + +#include <sigtramp-android-asm.h> + +asm (SIGTRAMP_START(TRAMP_COMMON)); +asm (SIGTRAMP_BODY); +asm (SIGTRAMP_END(TRAMP_COMMON)); + +#else /* !__SETUP_CFI */ + +void __gnat_sigtramp (int signo, void *si, void *ucontext, + __sigtramphandler_t * handler) +{ + handler (signo, si, ucontext); +} + +#endif |