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Add Darwin/x86_64 support. Fix EDX register index for i386 insn decoder.

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This commit is contained in:
gbeauche 2007-06-16 06:21:57 +00:00
parent e9c5625ada
commit 320b4ccd61
1 changed files with 77 additions and 17 deletions
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94
BasiliskII/src/Unix/sigsegv.cpp
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@ -602,32 +602,56 @@ if (ret != KERN_SUCCESS) { \
}
#ifdef __ppc__
#define SIGSEGV_EXCEPTION_STATE_TYPE ppc_exception_state_t
#define SIGSEGV_EXCEPTION_STATE_FLAVOR PPC_EXCEPTION_STATE
#define SIGSEGV_EXCEPTION_STATE_COUNT PPC_EXCEPTION_STATE_COUNT
#define SIGSEGV_FAULT_ADDRESS exc_state->dar
#define SIGSEGV_THREAD_STATE_TYPE ppc_thread_state_t
#define SIGSEGV_THREAD_STATE_FLAVOR PPC_THREAD_STATE
#define SIGSEGV_THREAD_STATE_COUNT PPC_THREAD_STATE_COUNT
#define SIGSEGV_FAULT_INSTRUCTION state->srr0
#define SIGSEGV_FAULT_INSTRUCTION state.srr0
#define SIGSEGV_SKIP_INSTRUCTION powerpc_skip_instruction
#define SIGSEGV_REGISTER_FILE (unsigned long *)&state->srr0, (unsigned long *)&state->r0
#define SIGSEGV_REGISTER_FILE (unsigned long *)&state.srr0, (unsigned long *)&state.r0
#endif
#ifdef __i386__
#ifdef i386_SAVED_STATE
#define SIGSEGV_THREAD_STATE_TYPE struct i386_saved_state
#define SIGSEGV_THREAD_STATE_FLAVOR i386_SAVED_STATE
#define SIGSEGV_THREAD_STATE_COUNT i386_SAVED_STATE_COUNT
#define SIGSEGV_REGISTER_FILE ((unsigned long *)&state->edi) /* EDI is the first GPR we consider */
#define SIGSEGV_REGISTER_FILE ((unsigned long *)&state.edi) /* EDI is the first GPR we consider */
#else
#define SIGSEGV_EXCEPTION_STATE_TYPE struct i386_exception_state
#define SIGSEGV_EXCEPTION_STATE_FLAVOR i386_EXCEPTION_STATE
#define SIGSEGV_EXCEPTION_STATE_COUNT i386_EXCEPTION_STATE_COUNT
#define SIGSEGV_FAULT_ADDRESS exc_state->faultvaddr
#define SIGSEGV_THREAD_STATE_TYPE struct i386_thread_state
#define SIGSEGV_THREAD_STATE_FLAVOR i386_THREAD_STATE
#define SIGSEGV_THREAD_STATE_COUNT i386_THREAD_STATE_COUNT
#define SIGSEGV_REGISTER_FILE ((unsigned long *)&state->eax) /* EAX is the first GPR we consider */
#define SIGSEGV_REGISTER_FILE ((unsigned long *)&state.eax) /* EAX is the first GPR we consider */
#endif
#define SIGSEGV_FAULT_INSTRUCTION state->eip
#define SIGSEGV_FAULT_INSTRUCTION state.eip
#define SIGSEGV_SKIP_INSTRUCTION ix86_skip_instruction
#endif
#ifdef __x86_64__
#define SIGSEGV_EXCEPTION_STATE_TYPE struct x86_exception_state64
#define SIGSEGV_EXCEPTION_STATE_FLAVOR x86_EXCEPTION_STATE64
#define SIGSEGV_EXCEPTION_STATE_COUNT x86_EXCEPTION_STATE64_COUNT
#define SIGSEGV_FAULT_ADDRESS exc_state->faultvaddr
#define SIGSEGV_THREAD_STATE_TYPE struct x86_thread_state64
#define SIGSEGV_THREAD_STATE_FLAVOR x86_THREAD_STATE64
#define SIGSEGV_THREAD_STATE_COUNT x86_THREAD_STATE64_COUNT
#define SIGSEGV_REGISTER_FILE ((unsigned long *)&state.rax) /* RAX is the first GPR we consider */
#define SIGSEGV_FAULT_INSTRUCTION state.rip
#define SIGSEGV_SKIP_INSTRUCTION ix86_skip_instruction
#endif
#ifdef SIGSEGV_EXCEPTION_STATE_TYPE
#define SIGSEGV_FAULT_HANDLER_ARGLIST mach_port_t thread, SIGSEGV_EXCEPTION_STATE_TYPE *exc_state
#define SIGSEGV_FAULT_HANDLER_ARGS thread, &exc_state
#else
#define SIGSEGV_FAULT_ADDRESS code[1]
#define SIGSEGV_FAULT_HANDLER_INVOKE(ADDR, IP) ((code[0] == KERN_PROTECTION_FAILURE || code[0] == KERN_INVALID_ADDRESS) ? sigsegv_fault_handler(ADDR, IP) : SIGSEGV_RETURN_FAILURE)
#define SIGSEGV_FAULT_HANDLER_ARGLIST mach_port_t thread, exception_data_t code, SIGSEGV_THREAD_STATE_TYPE *state
#define SIGSEGV_FAULT_HANDLER_ARGS thread, code, &state
#define SIGSEGV_FAULT_HANDLER_ARGLIST mach_port_t thread, exception_data_t code
#define SIGSEGV_FAULT_HANDLER_ARGS thread, code
#endif
// Since there can only be one exception thread running at any time
// this is not a problem.
@ -785,6 +809,7 @@ enum {
#endif
#if defined(__APPLE__) && defined(__MACH__)
enum {
#if (defined(i386) || defined(__i386__))
#ifdef i386_SAVED_STATE
// same as FreeBSD (in Open Darwin 8.0.1)
X86_REG_EIP = 10,
@ -801,13 +826,33 @@ enum {
X86_REG_EIP = 10,
X86_REG_EAX = 0,
X86_REG_ECX = 2,
X86_REG_EDX = 4,
X86_REG_EDX = 3,
X86_REG_EBX = 1,
X86_REG_ESP = 7,
X86_REG_EBP = 6,
X86_REG_ESI = 5,
X86_REG_EDI = 4
#endif
#endif
#if defined(__x86_64__)
X86_REG_R8 = 8,
X86_REG_R9 = 9,
X86_REG_R10 = 10,
X86_REG_R11 = 11,
X86_REG_R12 = 12,
X86_REG_R13 = 13,
X86_REG_R14 = 14,
X86_REG_R15 = 15,
X86_REG_EDI = 4,
X86_REG_ESI = 5,
X86_REG_EBP = 6,
X86_REG_EBX = 1,
X86_REG_EDX = 3,
X86_REG_EAX = 0,
X86_REG_ECX = 2,
X86_REG_ESP = 7,
X86_REG_EIP = 16
#endif
};
#endif
#if defined(_WIN32)
@ -1618,9 +1663,10 @@ static bool handle_badaccess(SIGSEGV_FAULT_HANDLER_ARGLIST_1)
// We must match the initial count when writing back the CPU state registers
kern_return_t krc;
mach_msg_type_number_t count;
SIGSEGV_THREAD_STATE_TYPE state;
count = SIGSEGV_THREAD_STATE_COUNT;
krc = thread_get_state(thread, SIGSEGV_THREAD_STATE_FLAVOR, (thread_state_t)state, &count);
krc = thread_get_state(thread, SIGSEGV_THREAD_STATE_FLAVOR, (thread_state_t)&state, &count);
MACH_CHECK_ERROR (thread_get_state, krc);
#endif
@ -1643,7 +1689,7 @@ static bool handle_badaccess(SIGSEGV_FAULT_HANDLER_ARGLIST_1)
// need to actually call thread_set_state to
// have the register values updated.
krc = thread_set_state(thread,
SIGSEGV_THREAD_STATE_FLAVOR, (thread_state_t)state,
SIGSEGV_THREAD_STATE_FLAVOR, (thread_state_t)&state,
count);
MACH_CHECK_ERROR (thread_set_state, krc);
#endif
@ -1795,20 +1841,34 @@ catch_exception_raise(mach_port_t exception_port,
mach_port_t task,
exception_type_t exception,
exception_data_t code,
mach_msg_type_number_t codeCount)
mach_msg_type_number_t code_count)
{
SIGSEGV_THREAD_STATE_TYPE state;
kern_return_t krc;
if ((exception == EXC_BAD_ACCESS) && (codeCount >= 2)) {
if (handle_badaccess(SIGSEGV_FAULT_HANDLER_ARGS))
return KERN_SUCCESS;
if (exception == EXC_BAD_ACCESS) {
switch (code[0]) {
case KERN_PROTECTION_FAILURE:
case KERN_INVALID_ADDRESS:
{
#ifdef SIGSEGV_EXCEPTION_STATE_TYPE
SIGSEGV_EXCEPTION_STATE_TYPE exc_state;
mach_msg_type_number_t exc_state_count;
exc_state_count = SIGSEGV_EXCEPTION_STATE_COUNT;
krc = thread_get_state(thread, SIGSEGV_EXCEPTION_STATE_FLAVOR, (natural_t *)&exc_state, &exc_state_count);
MACH_CHECK_ERROR (thread_get_state, krc);
#endif
if (handle_badaccess(SIGSEGV_FAULT_HANDLER_ARGS))
return KERN_SUCCESS;
break;
}
}
}
// In Mach we do not need to remove the exception handler.
// If we forward the exception, eventually some exception handler
// will take care of this exception.
krc = forward_exception(thread, task, exception, code, codeCount, &ports);
krc = forward_exception(thread, task, exception, code, code_count, &ports);
return krc;
}