{
unsigned long badinst;
unsigned long *pc;
- int rs1;
+ int rs1;
pc = (unsigned long *)(*os_context_pc_addr(context));
/* Unaligned */
return NULL;
}
- if ((pc < READ_ONLY_SPACE_START ||
- pc >= READ_ONLY_SPACE_START+READ_ONLY_SPACE_SIZE) &&
- (pc < current_dynamic_space ||
+ if ((pc < READ_ONLY_SPACE_START ||
+ pc >= READ_ONLY_SPACE_START+READ_ONLY_SPACE_SIZE) &&
+ (pc < current_dynamic_space ||
pc >= current_dynamic_space + DYNAMIC_SPACE_SIZE)) {
return NULL;
}
badinst = *pc;
if ((badinst >> 30) != 3)
- /* All load/store instructions have op = 11 (binary) */
- return 0;
+ /* All load/store instructions have op = 11 (binary) */
+ return 0;
rs1 = (badinst>>14)&0x1f;
-
+
if (badinst & (1<<13)) {
- /* r[rs1] + simm(13) */
- int simm13 = badinst & 0x1fff;
+ /* r[rs1] + simm(13) */
+ int simm13 = badinst & 0x1fff;
- if (simm13 & (1<<12))
- simm13 |= -1<<13;
+ if (simm13 & (1<<12))
+ simm13 |= -1<<13;
- return (os_vm_address_t)
- (*os_context_register_addr(context, rs1)+simm13);
+ return (os_vm_address_t)
+ (*os_context_register_addr(context, rs1)+simm13);
}
else {
- /* r[rs1] + r[rs2] */
- int rs2 = badinst & 0x1f;
+ /* r[rs1] + r[rs2] */
+ int rs2 = badinst & 0x1f;
- return (os_vm_address_t)
- (*os_context_register_addr(context, rs1) +
- *os_context_register_addr(context, rs2));
+ return (os_vm_address_t)
+ (*os_context_register_addr(context, rs1) +
+ *os_context_register_addr(context, rs2));
}
}
unsigned long *ptr = (unsigned long *)pc;
unsigned long result = *ptr;
*ptr = trap_Breakpoint;
-
+
os_flush_icache((os_vm_address_t) pc, sizeof(unsigned long));
-
+
return result;
}
displaced_after_inst = *npc;
*npc = trap_AfterBreakpoint;
os_flush_icache((os_vm_address_t) npc, sizeof(unsigned long));
-
+
}
static int pseudo_atomic_trap_p(os_context_t *context)
unsigned int* pc;
unsigned int badinst;
int result;
-
-
+
+
pc = (unsigned int*) *os_context_pc_addr(context);
badinst = *pc;
result = 0;
-
+
/* Check to see if the current instruction is a pseudo-atomic-trap */
if (((badinst >> 30) == 2) && (((badinst >> 19) & 0x3f) == 0x3a)
- && (((badinst >> 13) & 1) == 1) && ((badinst & 0x7f) == PSEUDO_ATOMIC_TRAP))
- {
- unsigned int previnst;
- previnst = pc[-1];
- /*
- * Check to see if the previous instruction was an andcc alloc-tn,
- * 3, zero-tn instruction.
- */
- if (((previnst >> 30) == 2) && (((previnst >> 19) & 0x3f) == 0x11)
- && (((previnst >> 14) & 0x1f) == reg_ALLOC)
- && (((previnst >> 25) & 0x1f) == reg_ZERO)
- && (((previnst >> 13) & 1) == 1)
- && ((previnst & 0x1fff) == 3))
- {
- result = 1;
- }
- else
- {
- fprintf(stderr, "Oops! Got a PSEUDO-ATOMIC-TRAP without a preceeding andcc!\n");
- }
- }
+ && (((badinst >> 13) & 1) == 1) && ((badinst & 0x7f) == PSEUDO_ATOMIC_TRAP))
+ {
+ unsigned int previnst;
+ previnst = pc[-1];
+ /*
+ * Check to see if the previous instruction was an andcc alloc-tn,
+ * 3, zero-tn instruction.
+ */
+ if (((previnst >> 30) == 2) && (((previnst >> 19) & 0x3f) == 0x11)
+ && (((previnst >> 14) & 0x1f) == reg_ALLOC)
+ && (((previnst >> 25) & 0x1f) == reg_ZERO)
+ && (((previnst >> 13) & 1) == 1)
+ && ((previnst & 0x1fff) == 3))
+ {
+ result = 1;
+ }
+ else
+ {
+ fprintf(stderr, "Oops! Got a PSEUDO-ATOMIC-TRAP without a preceeding andcc!\n");
+ }
+ }
return result;
}
/* FIXME: Check that this is necessary -- CSR, 2002-07-15 */
os_restore_fp_control(context);
#endif
-
+
if ((siginfo->si_code) == ILL_ILLOPC
#ifdef LISP_FEATURE_LINUX
- || (linux_sparc_siginfo_bug && (siginfo->si_code == 2))
+ || (linux_sparc_siginfo_bug && (siginfo->si_code == 2))
#endif
- ) {
- int trap;
- unsigned int inst;
- unsigned int* pc = (unsigned int*) siginfo->si_addr;
-
- inst = *pc;
- trap = inst & 0x3fffff;
-
- switch (trap) {
- case trap_PendingInterrupt:
- arch_skip_instruction(context);
- interrupt_handle_pending(context);
- break;
-
- case trap_Halt:
- fake_foreign_function_call(context);
- lose("%%primitive halt called; the party is over.\n");
-
- case trap_Error:
- case trap_Cerror:
- interrupt_internal_error(signal, siginfo, context, trap == trap_Cerror);
- break;
-
- case trap_Breakpoint:
- handle_breakpoint(signal, siginfo, context);
- break;
-
- case trap_FunEndBreakpoint:
- *os_context_pc_addr(context) = (int) handle_fun_end_breakpoint(signal, siginfo, context);
- *os_context_npc_addr(context) = *os_context_pc_addr(context) + 4;
- break;
-
- case trap_AfterBreakpoint:
- *skipped_break_addr = trap_Breakpoint;
- skipped_break_addr = NULL;
- *(unsigned long *) os_context_pc_addr(context) = displaced_after_inst;
- /* context->sigmask = orig_sigmask; */
- os_flush_icache((os_vm_address_t) os_context_pc_addr(context), sizeof(unsigned long));
- break;
-
- default:
- interrupt_handle_now(signal, siginfo, context);
- break;
- }
+ ) {
+ int trap;
+ unsigned int inst;
+ unsigned int* pc = (unsigned int*) siginfo->si_addr;
+
+ inst = *pc;
+ trap = inst & 0x3fffff;
+
+ switch (trap) {
+ case trap_PendingInterrupt:
+ arch_skip_instruction(context);
+ interrupt_handle_pending(context);
+ break;
+
+ case trap_Halt:
+ fake_foreign_function_call(context);
+ lose("%%primitive halt called; the party is over.\n");
+
+ case trap_Error:
+ case trap_Cerror:
+ interrupt_internal_error(signal, siginfo, context, trap == trap_Cerror);
+ break;
+
+ case trap_Breakpoint:
+ handle_breakpoint(signal, siginfo, context);
+ break;
+
+ case trap_FunEndBreakpoint:
+ *os_context_pc_addr(context) = (int) handle_fun_end_breakpoint(signal, siginfo, context);
+ *os_context_npc_addr(context) = *os_context_pc_addr(context) + 4;
+ break;
+
+ case trap_AfterBreakpoint:
+ *skipped_break_addr = trap_Breakpoint;
+ skipped_break_addr = NULL;
+ *(unsigned long *) os_context_pc_addr(context) = displaced_after_inst;
+ /* context->sigmask = orig_sigmask; */
+ os_flush_icache((os_vm_address_t) os_context_pc_addr(context), sizeof(unsigned long));
+ break;
+
+ default:
+ interrupt_handle_now(signal, siginfo, context);
+ break;
+ }
}
else if ((siginfo->si_code) == ILL_ILLTRP
#ifdef LISP_FEATURE_LINUX
- || (linux_sparc_siginfo_bug && (siginfo->si_code) == 192)
+ || (linux_sparc_siginfo_bug && (siginfo->si_code) == 192)
#endif
- ) {
- if (pseudo_atomic_trap_p(context)) {
- /* A trap instruction from a pseudo-atomic. We just need
- to fixup up alloc-tn to remove the interrupted flag,
- skip over the trap instruction, and then handle the
- pending interrupt(s). */
- *os_context_register_addr(context, reg_ALLOC) &= ~7;
- arch_skip_instruction(context);
- interrupt_handle_pending(context);
- }
- else {
- interrupt_internal_error(signal, siginfo, context, 0);
- }
+ ) {
+ if (pseudo_atomic_trap_p(context)) {
+ /* A trap instruction from a pseudo-atomic. We just need
+ to fixup up alloc-tn to remove the interrupted flag,
+ skip over the trap instruction, and then handle the
+ pending interrupt(s). */
+ *os_context_register_addr(context, reg_ALLOC) &= ~7;
+ arch_skip_instruction(context);
+ interrupt_handle_pending(context);
+ }
+ else {
+ interrupt_internal_error(signal, siginfo, context, 0);
+ }
}
else {
- interrupt_handle_now(signal, siginfo, context);
+ interrupt_handle_now(signal, siginfo, context);
}
}
#ifdef LISP_FEATURE_LINUX
os_restore_fp_control(context);
#endif
-
+
badinst = *(unsigned long *)os_context_pc_addr(context);
if ((badinst >> 30) != 2 || ((badinst >> 20) & 0x1f) != 0x11) {
- /* It wasn't a tagged add. Pass the signal into lisp. */
- interrupt_handle_now(signal, siginfo, context);
- return;
+ /* It wasn't a tagged add. Pass the signal into lisp. */
+ interrupt_handle_now(signal, siginfo, context);
+ return;
}
-
+
fprintf(stderr, "SIGEMT trap handler with tagged op instruction!\n");
-
+
/* Extract the parts of the inst. */
subtract = badinst & (1<<19);
rs1 = (badinst>>14) & 0x1f;
op1 = *os_context_register_addr(context, rs1);
-
+
/* If the first arg is $ALLOC then it is really a signal-pending note */
/* for the pseudo-atomic noise. */
if (rs1 == reg_ALLOC) {
- /* Perform the op anyway. */
- op2 = badinst & 0x1fff;
- if (op2 & (1<<12))
- op2 |= -1<<13;
- if (subtract)
- result = op1 - op2;
- else
- result = op1 + op2;
- *os_context_register_addr(context, reg_ALLOC) = result & ~7;
- arch_skip_instruction(context);
- interrupt_handle_pending(context);
- return;
+ /* Perform the op anyway. */
+ op2 = badinst & 0x1fff;
+ if (op2 & (1<<12))
+ op2 |= -1<<13;
+ if (subtract)
+ result = op1 - op2;
+ else
+ result = op1 + op2;
+ *os_context_register_addr(context, reg_ALLOC) = result & ~7;
+ arch_skip_instruction(context);
+ interrupt_handle_pending(context);
+ return;
}
-
+
if ((op1 & 3) != 0) {
- /* The first arg wan't a fixnum. */
- interrupt_internal_error(signal, siginfo, context, 0);
- return;
+ /* The first arg wan't a fixnum. */
+ interrupt_internal_error(signal, siginfo, context, 0);
+ return;
}
-
+
if (immed = badinst & (1<<13)) {
- op2 = badinst & 0x1fff;
- if (op2 & (1<<12))
- op2 |= -1<<13;
+ op2 = badinst & 0x1fff;
+ if (op2 & (1<<12))
+ op2 |= -1<<13;
}
else {
- rs2 = badinst & 0x1f;
- op2 = *os_context_register_addr(context, rs2);
+ rs2 = badinst & 0x1f;
+ op2 = *os_context_register_addr(context, rs2);
}
-
+
if ((op2 & 3) != 0) {
- /* The second arg wan't a fixnum. */
- interrupt_internal_error(signal, siginfo, context, 0);
- return;
+ /* The second arg wan't a fixnum. */
+ interrupt_internal_error(signal, siginfo, context, 0);
+ return;
}
-
+
rd = (badinst>>25) & 0x1f;
if (rd != 0) {
- /* Don't bother computing the result unless we are going to use it. */
- if (subtract)
- result = (op1>>2) - (op2>>2);
- else
- result = (op1>>2) + (op2>>2);
-
- dynamic_space_free_pointer =
- (lispobj *) *os_context_register_addr(context, reg_ALLOC);
-
- *os_context_register_addr(context, rd) = alloc_number(result);
-
- *os_context_register_addr(context, reg_ALLOC) =
- (unsigned long) dynamic_space_free_pointer;
+ /* Don't bother computing the result unless we are going to use it. */
+ if (subtract)
+ result = (op1>>2) - (op2>>2);
+ else
+ result = (op1>>2) + (op2>>2);
+
+ dynamic_space_free_pointer =
+ (lispobj *) *os_context_register_addr(context, reg_ALLOC);
+
+ *os_context_register_addr(context, rd) = alloc_number(result);
+
+ *os_context_register_addr(context, reg_ALLOC) =
+ (unsigned long) dynamic_space_free_pointer;
}
-
+
arch_skip_instruction(context);
}
* jmp %temp_reg + %lo(addr), %addr_reg
* nop
* nop
- *
+ *
*/
int* inst_ptr;
unsigned long hi; /* Top 22 bits of address */
/*
* sethi %hi(addr), temp_reg
*/
-
+
inst = (0 << 30) | (LINKAGE_TEMP_REG << 25) | (4 << 22) | hi;
*inst_ptr++ = inst;
/* nop (really sethi 0, %g0) */
inst = (0 << 30) | (0 << 25) | (4 << 22) | 0;
-
+
*inst_ptr++ = inst;
*inst_ptr++ = inst;
-
+
os_flush_icache((os_vm_address_t) reloc_addr, (char*) inst_ptr - (char*) reloc_addr);
}
-void
+void
arch_write_linkage_table_ref(void * reloc_addr, void *target_addr)
{
*(unsigned long *)reloc_addr = (unsigned long)target_addr;
projects / sbcl.git / blobdiff