#include <stdio.h>
#include <signal.h>
+#include "sbcl.h"
#include "runtime.h"
#include "os.h"
-#include "sbcl.h"
#include "interrupt.h"
#include "arch.h"
#include "lispregs.h"
#include "globals.h"
#include "alloc.h"
#include "breakpoint.h"
+#include "thread.h"
+#include "genesis/code.h"
+#include "genesis/fdefn.h"
#define REAL_LRA_SLOT 0
-#ifndef __i386__
+#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
#define KNOWN_RETURN_P_SLOT 1
#define BOGUS_LRA_CONSTANTS 2
#else
{
struct code *code;
- code = (struct code *)PTR(code_obj);
+ code = (struct code *)native_pointer(code_obj);
return (void *)((char *)code + HeaderValue(code->header)*sizeof(lispobj)
- + pc_offset);
+ + pc_offset);
}
unsigned long breakpoint_install(lispobj code_obj, int pc_offset)
}
void breakpoint_remove(lispobj code_obj, int pc_offset,
- unsigned long orig_inst)
+ unsigned long orig_inst)
{
arch_remove_breakpoint(compute_pc(code_obj, pc_offset), orig_inst);
}
void breakpoint_do_displaced_inst(os_context_t* context,
- unsigned long orig_inst)
+ unsigned long orig_inst)
{
-#if !defined(hpux) && !defined(irix) && !defined(__i386__)
+ /* on platforms with sigreturn(), we go directly back from
+ * arch_do_displaced_inst() to lisp code, so we need to clean up
+ * our bindings now. (side note: I'd love to know in exactly what
+ * scenario the speed of breakpoint handling is critical enough to
+ * justify this maintenance mess)
+ *
+ * -dan 2001.08.09 */
+
+#if (defined(LISP_FEATURE_SPARC) && defined (solaris))
undo_fake_foreign_function_call(context);
#endif
arch_do_displaced_inst(context, orig_inst);
}
-#ifndef __i386__
+#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
static lispobj find_code(os_context_t *context)
{
#ifdef reg_CODE
lispobj code = *os_context_register_addr(context, reg_CODE);
lispobj header;
- if (LowtagOf(code) != type_OtherPointer)
- return NIL;
+ if (lowtag_of(code) != OTHER_POINTER_LOWTAG)
+ return NIL;
- header = *(lispobj *)(code-type_OtherPointer);
+ header = *(lispobj *)(code-OTHER_POINTER_LOWTAG);
- if (TypeOf(header) == type_CodeHeader)
- return code;
+ if (widetag_of(header) == CODE_HEADER_WIDETAG)
+ return code;
else
- return code - HeaderValue(header)*sizeof(lispobj);
+ return code - HeaderValue(header)*sizeof(lispobj);
#else
return NIL;
#endif
}
-#endif
-
-#ifdef __i386__
+#else
static lispobj find_code(os_context_t *context)
{
- lispobj codeptr = component_ptr_from_pc(*os_context_pc_addr(context));
+ lispobj codeptr =
+ (lispobj)component_ptr_from_pc((lispobj *)(*os_context_pc_addr(context)));
- if (codeptr == 0) {
- return NIL;
- } else {
- return codeptr + type_OtherPointer;
- }
+ if (codeptr == 0) {
+ return NIL;
+ } else {
+ return codeptr + OTHER_POINTER_LOWTAG;
+ }
}
#endif
-static int compute_offset(os_context_t *context, lispobj code)
+static long compute_offset(os_context_t *context, lispobj code)
{
if (code == NIL)
- return 0;
+ return 0;
else {
- unsigned long code_start;
- struct code *codeptr = (struct code *)PTR(code);
+ unsigned long code_start;
+ struct code *codeptr = (struct code *)native_pointer(code);
#ifdef parisc
- unsigned long pc = *os_context_pc_addr(context) & ~3;
+ unsigned long pc = *os_context_pc_addr(context) & ~3;
#else
- unsigned long pc = *os_context_pc_addr(context);
+ unsigned long pc = *os_context_pc_addr(context);
#endif
- code_start = (unsigned long)codeptr
- + HeaderValue(codeptr->header)*sizeof(lispobj);
- if (pc < code_start)
- return 0;
- else {
- int offset = pc - code_start;
- if (offset >= codeptr->code_size)
- return 0;
- else
- return make_fixnum(offset);
- }
+ code_start = (unsigned long)codeptr
+ + HeaderValue(codeptr->header)*sizeof(lispobj);
+ if (pc < code_start)
+ return 0;
+ else {
+ long offset = pc - code_start;
+ if (offset >= codeptr->code_size)
+ return 0;
+ else
+ return make_fixnum(offset);
+ }
}
}
-#ifndef __i386__
-void handle_breakpoint(int signal, siginfo_t *info, os_context_t *context)
-{
- lispobj code;
-
- fake_foreign_function_call(context);
-
- code = find_code(context);
-
- funcall3(SymbolFunction(HANDLE_BREAKPOINT),
- compute_offset(context, code),
- code,
- alloc_sap(context));
-
- undo_fake_foreign_function_call(context);
-}
-#else
void handle_breakpoint(int signal, siginfo_t* info, os_context_t *context)
{
lispobj code, context_sap = alloc_sap(context);
/* Don't disallow recursive breakpoint traps. Otherwise, we can't
* use debugger breakpoints anywhere in here. */
- sigprocmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+ thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
funcall3(SymbolFunction(HANDLE_BREAKPOINT),
- compute_offset(context, code),
- code,
- context_sap);
+ compute_offset(context, code),
+ code,
+ context_sap);
undo_fake_foreign_function_call(context);
}
-#endif
-#ifndef __i386__
-void *handle_function_end_breakpoint(int signal, siginfo_t *info,
- os_context_t *context)
+#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
+void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
+ os_context_t *context)
{
lispobj code, lra;
struct code *codeptr;
fake_foreign_function_call(context);
code = find_code(context);
- codeptr = (struct code *)PTR(code);
+ codeptr = (struct code *)native_pointer(code);
+
+ /* Don't disallow recursive breakpoint traps. Otherwise, we can't
+ * use debugger breakpoints anywhere in here. */
+ thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
funcall3(SymbolFunction(HANDLE_BREAKPOINT),
- compute_offset(context, code),
- code,
- alloc_sap(context));
+ compute_offset(context, code),
+ code,
+ alloc_sap(context));
lra = codeptr->constants[REAL_LRA_SLOT];
#ifdef reg_CODE
if (codeptr->constants[KNOWN_RETURN_P_SLOT] == NIL) {
- *os_context_register_addr(context, reg_CODE) = lra;
+ *os_context_register_addr(context, reg_CODE) = lra;
}
#endif
undo_fake_foreign_function_call(context);
- return (void *)(lra-type_OtherPointer+sizeof(lispobj));
+ return (void *)(lra-OTHER_POINTER_LOWTAG+sizeof(lispobj));
}
#else
-void *handle_function_end_breakpoint(int signal, siginfo_t *info,
- os_context_t *context)
+void *handle_fun_end_breakpoint(int signal, siginfo_t *info,
+ os_context_t *context)
{
lispobj code, context_sap = alloc_sap(context);
struct code *codeptr;
fake_foreign_function_call(context);
code = find_code(context);
- codeptr = (struct code *)PTR(code);
+ codeptr = (struct code *)native_pointer(code);
/* Don't disallow recursive breakpoint traps. Otherwise, we can't
* use debugger breakpoints anywhere in here. */
- sigprocmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+ thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
funcall3(SymbolFunction(HANDLE_BREAKPOINT),
- compute_offset(context, code),
- code,
- context_sap);
+ compute_offset(context, code),
+ code,
+ context_sap);
undo_fake_foreign_function_call(context);
return compute_pc(codeptr->constants[REAL_LRA_SLOT],
- fixnum_value(codeptr->constants[REAL_LRA_SLOT+1]));
+ fixnum_value(codeptr->constants[REAL_LRA_SLOT+1]));
}
#endif