diff options
Diffstat (limited to 'hurd')
| -rw-r--r-- | hurd/exc2signal.c | 71 | ||||
| -rw-r--r-- | hurd/longjmp-ts.c | 32 | ||||
| -rw-r--r-- | hurd/trampoline.c | 37 |
3 files changed, 140 insertions, 0 deletions
diff --git a/hurd/exc2signal.c b/hurd/exc2signal.c new file mode 100644 index 0000000000..de044bbcf4 --- /dev/null +++ b/hurd/exc2signal.c @@ -0,0 +1,71 @@ +/* Translate Mach exception codes into signal numbers. Stub version. + Copyright (C) 1991, 1992, 1994, 1995, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <hurd.h> + +/* This file must be modified with machine-dependent details. */ +#error "need to write sysdeps/mach/hurd/MACHINE/exc2signal.c" + +/* Translate the Mach exception codes, as received in an `exception_raise' RPC, + into a signal number and signal subcode. */ + +void +_hurd_exception2signal (int exception, int code, int subcode, + int *signo, int *sigcode, int *error) +{ + *error = 0; + + switch (exception) + { + default: + *signo = SIGIOT; + *sigcode = exception; + break; + + case EXC_BAD_ACCESS: + if (code == KERN_PROTECTION_FAILURE) + *signo = SIGSEGV; + else + *signo = SIGBUS; + *sigcode = subcode; + *error = code; + break; + + case EXC_BAD_INSTRUCTION: + *signo = SIGILL; + *sigcode = 0; + break; + + case EXC_ARITHMETIC: + *signo = SIGFPE; + *sigcode = 0; + break; + + case EXC_EMULATION: + case EXC_SOFTWARE: + *signo = SIGEMT; + *sigcode = 0; + break; + + case EXC_BREAKPOINT: + *signo = SIGTRAP; + *sigcode = 0; + break; + } +} diff --git a/hurd/longjmp-ts.c b/hurd/longjmp-ts.c new file mode 100644 index 0000000000..e9c297a20b --- /dev/null +++ b/hurd/longjmp-ts.c @@ -0,0 +1,32 @@ +/* Perform a `longjmp' on a Mach thread_state. Stub version. + Copyright (C) 1991, 1994, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <setjmp.h> +#include <mach/thread_status.h> + +/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */ + +void +_hurd_longjmp_thread_state (void *state, jmp_buf env, int val) +{ + /* Set all the registers in *STATE to the values described by ENV and + RETVAL. After this, setting that thread's state to STATE should be + just like calling `longjmp (ENV, RETVAL)'. */ + #error "Need to write sysdeps/mach/hurd/MACHINE/longjmp-ctx.c" +} diff --git a/hurd/trampoline.c b/hurd/trampoline.c new file mode 100644 index 0000000000..7045a0d0ab --- /dev/null +++ b/hurd/trampoline.c @@ -0,0 +1,37 @@ +/* Set thread_state for sighandler, and sigcontext to recover. Stub version. + Copyright (C) 1994, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <hurd.h> +#include <mach/thread_status.h> + +/* Set up STATE to run a signal handler in the thread it describes. + This should save the original state in a `struct sigcontext' on the + thread's stack (or possibly a signal stack described by SIGALTSTACK, + if the SA_ONSTACK bit is set in FLAGS), and return the address of + that structure. */ + +struct sigcontext * +_hurd_setup_sighandler (int flags, + __sighandler_t handler, + struct sigaltstack *sigaltstack, + int signo, int sigcode, + void *state) +{ +#error "Need to write sysdeps/mach/hurd/MACHINE/trampoline.c" +} |