=?UTF-8?Q?Andr=C3=A9=20Hentschel=20?=: ntdll: Add support for FreeBSD on ARM.
Alexandre Julliard
julliard at wine.codeweavers.com
Fri Mar 27 08:55:18 CDT 2015
Module: wine
Branch: master
Commit: a29ca210e636ba623e0eac372049b293c8d925a8
URL: http://source.winehq.org/git/wine.git/?a=commit;h=a29ca210e636ba623e0eac372049b293c8d925a8
Author: André Hentschel <nerv at dawncrow.de>
Date: Thu Mar 26 23:16:49 2015 +0100
ntdll: Add support for FreeBSD on ARM.
---
dlls/ntdll/signal_arm.c | 59 ++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 53 insertions(+), 6 deletions(-)
diff --git a/dlls/ntdll/signal_arm.c b/dlls/ntdll/signal_arm.c
index 53a2663..bdb27af 100644
--- a/dlls/ntdll/signal_arm.c
+++ b/dlls/ntdll/signal_arm.c
@@ -2,7 +2,7 @@
* ARM signal handling routines
*
* Copyright 2002 Marcus Meissner, SuSE Linux AG
- * Copyright 2010, 2011 André Hentschel
+ * Copyright 2010-2013, 2015 André Hentschel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -96,9 +96,21 @@ typedef struct ucontext
/* Exceptions */
# define ERROR_sig(context) REG_sig(error_code, context)
-# define FAULT_sig(context) REG_sig(fault_address, context)
# define TRAP_sig(context) REG_sig(trap_no, context)
+#elif defined(__FreeBSD__)
+
+/* All Registers access - only for local access */
+# define REGn_sig(reg_num, context) ((context)->uc_mcontext.__gregs[reg_num])
+
+/* Special Registers access */
+# define SP_sig(context) REGn_sig(_REG_SP, context) /* Stack pointer */
+# define LR_sig(context) REGn_sig(_REG_LR, context) /* Link register */
+# define PC_sig(context) REGn_sig(_REG_PC, context) /* Program counter */
+# define CPSR_sig(context) REGn_sig(_REG_CPSR, context) /* Current State Register */
+# define IP_sig(context) REGn_sig(_REG_R12, context) /* Intra-Procedure-call scratch register */
+# define FP_sig(context) REGn_sig(_REG_FP, context) /* Frame pointer */
+
#endif /* linux */
enum arm_trap_code
@@ -123,6 +135,35 @@ struct UNWIND_INFO
WORD unknown2 : 4;
};
+
+/***********************************************************************
+ * get_trap_code
+ *
+ * Get the trap code for a signal.
+ */
+static inline enum arm_trap_code get_trap_code( const ucontext_t *sigcontext )
+{
+#ifdef TRAP_sig
+ return TRAP_sig(sigcontext);
+#else
+ return TRAP_ARM_UNKNOWN; /* unknown trap code */
+#endif
+}
+
+/***********************************************************************
+ * get_error_code
+ *
+ * Get the error code for a signal.
+ */
+static inline WORD get_error_code( const ucontext_t *sigcontext )
+{
+#ifdef ERROR_sig
+ return ERROR_sig(sigcontext);
+#else
+ return 0;
+#endif
+}
+
/***********************************************************************
* dispatch_signal
*/
@@ -587,7 +628,7 @@ static void segv_handler( int signal, siginfo_t *info, void *ucontext )
ucontext_t *context = ucontext;
/* check for page fault inside the thread stack */
- if (TRAP_sig(context) == TRAP_ARM_PAGEFLT &&
+ if (get_trap_code(context) == TRAP_ARM_PAGEFLT &&
(char *)info->si_addr >= (char *)NtCurrentTeb()->DeallocationStack &&
(char *)info->si_addr < (char *)NtCurrentTeb()->Tib.StackBase &&
virtual_handle_stack_fault( info->si_addr ))
@@ -604,7 +645,7 @@ static void segv_handler( int signal, siginfo_t *info, void *ucontext )
rec = setup_exception( context, raise_segv_exception );
if (rec->ExceptionCode == EXCEPTION_STACK_OVERFLOW) return;
- switch(TRAP_sig(context))
+ switch(get_trap_code(context))
{
case TRAP_ARM_PRIVINFLT: /* Invalid opcode exception */
rec->ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
@@ -612,14 +653,20 @@ static void segv_handler( int signal, siginfo_t *info, void *ucontext )
case TRAP_ARM_PAGEFLT: /* Page fault */
rec->ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
rec->NumberParameters = 2;
- rec->ExceptionInformation[0] = (ERROR_sig(context) & 0x800) != 0;
+ rec->ExceptionInformation[0] = (get_error_code(context) & 0x800) != 0;
rec->ExceptionInformation[1] = (ULONG_PTR)info->si_addr;
break;
case TRAP_ARM_ALIGNFLT: /* Alignment check exception */
rec->ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
break;
+ case TRAP_ARM_UNKNOWN: /* Unknown fault code */
+ rec->ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
+ rec->NumberParameters = 2;
+ rec->ExceptionInformation[0] = 0;
+ rec->ExceptionInformation[1] = 0xffffffff;
+ break;
default:
- ERR("Got unexpected trap %ld\n", TRAP_sig(context));
+ ERR("Got unexpected trap %d\n", get_trap_code(context));
rec->ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
break;
}
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