+++ /dev/null
-/* Translate Mach exception codes into signal numbers. i386 version.
- Copyright (C) 1991-2023 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, see
- <https://www.gnu.org/licenses/>. */
-
-#include <hurd.h>
-#include <hurd/signal.h>
-#include <mach/exception.h>
-
-/* Translate the Mach exception codes, as received in an `exception_raise' RPC,
- into a signal number and signal subcode. */
-
-static void
-exception2signal (struct hurd_signal_detail *detail, int *signo, int posix)
-{
- detail->error = 0;
-
- switch (detail->exc)
- {
- default:
- *signo = SIGIOT;
- detail->code = detail->exc;
- break;
-
- case EXC_BAD_ACCESS:
- switch (detail->exc_code)
- {
- case KERN_INVALID_ADDRESS:
- case KERN_MEMORY_FAILURE:
- *signo = SIGSEGV;
- detail->code = posix ? SEGV_MAPERR : detail->exc_subcode;
- break;
-
- case KERN_PROTECTION_FAILURE:
- case KERN_WRITE_PROTECTION_FAILURE:
- *signo = SIGSEGV;
- detail->code = posix ? SEGV_ACCERR : detail->exc_subcode;
- break;
-
- default:
- *signo = SIGBUS;
- detail->code = posix ? BUS_ADRERR : detail->exc_subcode;
- break;
- }
- detail->error = detail->exc_code;
- break;
-
- case EXC_BAD_INSTRUCTION:
- *signo = SIGILL;
- switch (detail->exc_code)
- {
- case EXC_I386_INVOP:
- detail->code = posix ? ILL_ILLOPC : ILL_INVOPR_FAULT;
- break;
-
- case EXC_I386_STKFLT:
- detail->code = posix ? ILL_BADSTK : ILL_STACK_FAULT;
- break;
-
- default:
- detail->code = 0;
- break;
- }
- break;
-
- case EXC_ARITHMETIC:
- *signo = SIGFPE;
- switch (detail->exc_code)
- {
- case EXC_I386_DIV: /* integer divide by zero */
- detail->code = posix ? FPE_INTDIV : FPE_INTDIV_FAULT;
- break;
-
- case EXC_I386_INTO: /* integer overflow */
- detail->code = posix ? FPE_INTOVF : FPE_INTOVF_TRAP;
- break;
-
- /* These aren't anywhere documented or used in Mach 3.0. */
- case EXC_I386_NOEXT:
- case EXC_I386_EXTOVR:
- default:
- detail->code = 0;
- break;
-
- case EXC_I386_EXTERR:
- /* Subcode is the fp_status word saved by the hardware.
- Give an error code corresponding to the first bit set. */
- if (detail->exc_subcode & FPS_IE)
- {
- /* NB: We used to send SIGILL here but we can't distinguish
- POSIX vs. legacy with respect to what signal we send. */
- detail->code = posix ? FPE_FLTINV : 0 /*ILL_FPEOPR_FAULT*/;
- }
- else if (detail->exc_subcode & FPS_DE)
- {
- detail->code = posix ? FPE_FLTUND : FPE_FLTDNR_FAULT;
- }
- else if (detail->exc_subcode & FPS_ZE)
- {
- detail->code = posix ? FPE_FLTDIV : FPE_FLTDIV_FAULT;
- }
- else if (detail->exc_subcode & FPS_OE)
- {
- detail->code = posix ? FPE_FLTOVF : FPE_FLTOVF_FAULT;
- }
- else if (detail->exc_subcode & FPS_UE)
- {
- detail->code = posix ? FPE_FLTUND : FPE_FLTUND_FAULT;
- }
- else if (detail->exc_subcode & FPS_PE)
- {
- detail->code = posix ? FPE_FLTRES : FPE_FLTINX_FAULT;
- }
- else
- {
- detail->code = 0;
- }
- break;
-
- /* These two can only be arithmetic exceptions if we
- are in V86 mode. (See Mach 3.0 i386/trap.c.) */
- case EXC_I386_EMERR:
- detail->code = posix ? 0 : FPE_EMERR_FAULT;
- break;
- case EXC_I386_BOUND:
- detail->code = posix ? FPE_FLTSUB : FPE_EMBND_FAULT;
- break;
- }
- break;
-
- case EXC_EMULATION:
- /* 3.0 doesn't give this one, why, I don't know. */
- *signo = SIGEMT;
- detail->code = 0;
- break;
-
- case EXC_SOFTWARE:
- /* The only time we get this in Mach 3.0
- is for an out of bounds trap. */
- if (detail->exc_code == EXC_I386_BOUND)
- {
- *signo = SIGFPE;
- detail->code = posix ? FPE_FLTSUB : FPE_SUBRNG_FAULT;
- }
- else
- {
- *signo = SIGEMT;
- detail->code = 0;
- }
- break;
-
- case EXC_BREAKPOINT:
- *signo = SIGTRAP;
- switch (detail->exc_code)
- {
- case EXC_I386_SGL:
- detail->code = posix ? TRAP_BRKPT : DBG_SINGLE_TRAP;
- break;
-
- case EXC_I386_BPT:
- detail->code = posix ? TRAP_BRKPT : DBG_BRKPNT_FAULT;
- break;
-
- default:
- detail->code = 0;
- break;
- }
- break;
- }
-}
-libc_hidden_def (_hurd_exception2signal)
-
-void
-_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo)
-{
- exception2signal (detail, signo, 1);
-}
-
-void
-_hurd_exception2signal_legacy (struct hurd_signal_detail *detail, int *signo)
-{
- exception2signal (detail, signo, 0);
-}
+++ /dev/null
-#include <hurd/signal.h>
-#include <signal.h>
-
---
-
-HURD_SIGSTATE__SIGALTSTACK__OFFSET offsetof(struct hurd_sigstate, sigaltstack)
-
-SIGALTSTACK__SS_SP__OFFSET offsetof(stack_t, ss_sp)
-SIGALTSTACK__SS_SIZE__OFFSET offsetof(stack_t, ss_size)
-SIGALTSTACK__SS_FLAGS__OFFSET offsetof(stack_t, ss_flags)
--- /dev/null
+/* Translate Mach exception codes into signal numbers. i386 version.
+ Copyright (C) 1991-2023 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, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <hurd.h>
+#include <hurd/signal.h>
+#include <mach/exception.h>
+
+/* Translate the Mach exception codes, as received in an `exception_raise' RPC,
+ into a signal number and signal subcode. */
+
+static void
+exception2signal (struct hurd_signal_detail *detail, int *signo, int posix)
+{
+ detail->error = 0;
+
+ switch (detail->exc)
+ {
+ default:
+ *signo = SIGIOT;
+ detail->code = detail->exc;
+ break;
+
+ case EXC_BAD_ACCESS:
+ switch (detail->exc_code)
+ {
+ case KERN_INVALID_ADDRESS:
+ case KERN_MEMORY_FAILURE:
+ *signo = SIGSEGV;
+ detail->code = posix ? SEGV_MAPERR : detail->exc_subcode;
+ break;
+
+ case KERN_PROTECTION_FAILURE:
+ case KERN_WRITE_PROTECTION_FAILURE:
+ *signo = SIGSEGV;
+ detail->code = posix ? SEGV_ACCERR : detail->exc_subcode;
+ break;
+
+ default:
+ *signo = SIGBUS;
+ detail->code = posix ? BUS_ADRERR : detail->exc_subcode;
+ break;
+ }
+ detail->error = detail->exc_code;
+ break;
+
+ case EXC_BAD_INSTRUCTION:
+ *signo = SIGILL;
+ switch (detail->exc_code)
+ {
+ case EXC_I386_INVOP:
+ detail->code = posix ? ILL_ILLOPC : ILL_INVOPR_FAULT;
+ break;
+
+ case EXC_I386_STKFLT:
+ detail->code = posix ? ILL_BADSTK : ILL_STACK_FAULT;
+ break;
+
+ default:
+ detail->code = 0;
+ break;
+ }
+ break;
+
+ case EXC_ARITHMETIC:
+ *signo = SIGFPE;
+ switch (detail->exc_code)
+ {
+ case EXC_I386_DIV: /* integer divide by zero */
+ detail->code = posix ? FPE_INTDIV : FPE_INTDIV_FAULT;
+ break;
+
+ case EXC_I386_INTO: /* integer overflow */
+ detail->code = posix ? FPE_INTOVF : FPE_INTOVF_TRAP;
+ break;
+
+ /* These aren't anywhere documented or used in Mach 3.0. */
+ case EXC_I386_NOEXT:
+ case EXC_I386_EXTOVR:
+ default:
+ detail->code = 0;
+ break;
+
+ case EXC_I386_EXTERR:
+ /* Subcode is the fp_status word saved by the hardware.
+ Give an error code corresponding to the first bit set. */
+ if (detail->exc_subcode & FPS_IE)
+ {
+ /* NB: We used to send SIGILL here but we can't distinguish
+ POSIX vs. legacy with respect to what signal we send. */
+ detail->code = posix ? FPE_FLTINV : 0 /*ILL_FPEOPR_FAULT*/;
+ }
+ else if (detail->exc_subcode & FPS_DE)
+ {
+ detail->code = posix ? FPE_FLTUND : FPE_FLTDNR_FAULT;
+ }
+ else if (detail->exc_subcode & FPS_ZE)
+ {
+ detail->code = posix ? FPE_FLTDIV : FPE_FLTDIV_FAULT;
+ }
+ else if (detail->exc_subcode & FPS_OE)
+ {
+ detail->code = posix ? FPE_FLTOVF : FPE_FLTOVF_FAULT;
+ }
+ else if (detail->exc_subcode & FPS_UE)
+ {
+ detail->code = posix ? FPE_FLTUND : FPE_FLTUND_FAULT;
+ }
+ else if (detail->exc_subcode & FPS_PE)
+ {
+ detail->code = posix ? FPE_FLTRES : FPE_FLTINX_FAULT;
+ }
+ else
+ {
+ detail->code = 0;
+ }
+ break;
+
+ /* These two can only be arithmetic exceptions if we
+ are in V86 mode. (See Mach 3.0 i386/trap.c.) */
+ case EXC_I386_EMERR:
+ detail->code = posix ? 0 : FPE_EMERR_FAULT;
+ break;
+ case EXC_I386_BOUND:
+ detail->code = posix ? FPE_FLTSUB : FPE_EMBND_FAULT;
+ break;
+ }
+ break;
+
+ case EXC_EMULATION:
+ /* 3.0 doesn't give this one, why, I don't know. */
+ *signo = SIGEMT;
+ detail->code = 0;
+ break;
+
+ case EXC_SOFTWARE:
+ /* The only time we get this in Mach 3.0
+ is for an out of bounds trap. */
+ if (detail->exc_code == EXC_I386_BOUND)
+ {
+ *signo = SIGFPE;
+ detail->code = posix ? FPE_FLTSUB : FPE_SUBRNG_FAULT;
+ }
+ else
+ {
+ *signo = SIGEMT;
+ detail->code = 0;
+ }
+ break;
+
+ case EXC_BREAKPOINT:
+ *signo = SIGTRAP;
+ switch (detail->exc_code)
+ {
+ case EXC_I386_SGL:
+ detail->code = posix ? TRAP_BRKPT : DBG_SINGLE_TRAP;
+ break;
+
+ case EXC_I386_BPT:
+ detail->code = posix ? TRAP_BRKPT : DBG_BRKPNT_FAULT;
+ break;
+
+ default:
+ detail->code = 0;
+ break;
+ }
+ break;
+ }
+}
+libc_hidden_def (_hurd_exception2signal)
+
+void
+_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo)
+{
+ exception2signal (detail, signo, 1);
+}
+
+void
+_hurd_exception2signal_legacy (struct hurd_signal_detail *detail, int *signo)
+{
+ exception2signal (detail, signo, 0);
+}
--- /dev/null
+#include <hurd/signal.h>
+#include <signal.h>
+
+--
+
+HURD_SIGSTATE__SIGALTSTACK__OFFSET offsetof(struct hurd_sigstate, sigaltstack)
+
+SIGALTSTACK__SS_SP__OFFSET offsetof(stack_t, ss_sp)
+SIGALTSTACK__SS_SIZE__OFFSET offsetof(stack_t, ss_size)
+SIGALTSTACK__SS_FLAGS__OFFSET offsetof(stack_t, ss_flags)
projects / platform / upstream / glibc.git / commitdiff