#include "genesis/static-symbols.h"
#include "genesis/symbol.h"
-#define BREAKPOINT_INST 0xcc /* INT3 */
+#define BREAKPOINT_INST 0xcc /* INT3 */
unsigned long fast_random_state = 1;
int vlen;
long code;
-
+
/* Get and skip the Lisp interrupt code. */
code = *(char*)(*os_context_pc_addr(context))++;
switch (code)
- {
- case trap_Error:
- case trap_Cerror:
- /* Lisp error arg vector length */
- vlen = *(char*)(*os_context_pc_addr(context))++;
- /* Skip Lisp error arg data bytes. */
- while (vlen-- > 0) {
- ++*os_context_pc_addr(context);
- }
- break;
-
- case trap_Breakpoint: /* not tested */
- case trap_FunEndBreakpoint: /* not tested */
- break;
-
- case trap_PendingInterrupt:
- case trap_Halt:
- /* only needed to skip the Code */
- break;
-
- default:
- fprintf(stderr,"[arch_skip_inst invalid code %d\n]\n",code);
- break;
- }
+ {
+ case trap_Error:
+ case trap_Cerror:
+ /* Lisp error arg vector length */
+ vlen = *(char*)(*os_context_pc_addr(context))++;
+ /* Skip Lisp error arg data bytes. */
+ while (vlen-- > 0) {
+ ++*os_context_pc_addr(context);
+ }
+ break;
+
+ case trap_Breakpoint: /* not tested */
+ case trap_FunEndBreakpoint: /* not tested */
+ break;
+
+ case trap_PendingInterrupt:
+ case trap_Halt:
+ /* only needed to skip the Code */
+ break;
+
+ default:
+ fprintf(stderr,"[arch_skip_inst invalid code %d\n]\n",code);
+ break;
+ }
FSHOW((stderr,
- "/[arch_skip_inst resuming at %x]\n",
- *os_context_pc_addr(context)));
+ "/[arch_skip_inst resuming at %x]\n",
+ *os_context_pc_addr(context)));
}
unsigned char *
arch_set_pseudo_atomic_interrupted(os_context_t *context)
{
SetSymbolValue(PSEUDO_ATOMIC_INTERRUPTED, make_fixnum(1),
- arch_os_get_current_thread());
+ arch_os_get_current_thread());
}
\f
/*
{
unsigned long result = *(unsigned long*)pc;
- *(char*)pc = BREAKPOINT_INST; /* x86 INT3 */
- *((char*)pc+1) = trap_Breakpoint; /* Lisp trap code */
+ *(char*)pc = BREAKPOINT_INST; /* x86 INT3 */
+ *((char*)pc+1) = trap_Breakpoint; /* Lisp trap code */
return result;
}
if (single_stepping && (signal==SIGTRAP))
{
- /* fprintf(stderr,"* single step trap %x\n", single_stepping); */
+ /* fprintf(stderr,"* single step trap %x\n", single_stepping); */
#ifdef CANNOT_GET_TO_SINGLE_STEP_FLAG
- /* Un-install single step helper instructions. */
- *(single_stepping-3) = single_step_save1;
- *(single_stepping-2) = single_step_save2;
- *(single_stepping-1) = single_step_save3;
+ /* Un-install single step helper instructions. */
+ *(single_stepping-3) = single_step_save1;
+ *(single_stepping-2) = single_step_save2;
+ *(single_stepping-1) = single_step_save3;
#else
- *context_eflags_addr(context) ^= 0x100;
+ *context_eflags_addr(context) ^= 0x100;
#endif
- /* Re-install the breakpoint if possible. */
- if (*os_context_pc_addr(context) == (int)single_stepping + 1) {
- fprintf(stderr, "warning: couldn't reinstall breakpoint\n");
- } else {
- *((char *)single_stepping) = BREAKPOINT_INST; /* x86 INT3 */
- *((char *)single_stepping+1) = trap_Breakpoint;
- }
-
- single_stepping = NULL;
- return;
+ /* Re-install the breakpoint if possible. */
+ if (*os_context_pc_addr(context) == (int)single_stepping + 1) {
+ fprintf(stderr, "warning: couldn't reinstall breakpoint\n");
+ } else {
+ *((char *)single_stepping) = BREAKPOINT_INST; /* x86 INT3 */
+ *((char *)single_stepping+1) = trap_Breakpoint;
+ }
+
+ single_stepping = NULL;
+ return;
}
/* This is just for info in case the monitor wants to print an
* approximation. */
current_control_stack_pointer =
- (lispobj *)*os_context_sp_addr(context);
+ (lispobj *)*os_context_sp_addr(context);
/* FIXME: CMUCL puts the float control restoration code here.
Thus, it seems to me that single-stepping won't restore the
switch (trap) {
case trap_PendingInterrupt:
- FSHOW((stderr, "/<trap pending interrupt>\n"));
- arch_skip_instruction(context);
- interrupt_handle_pending(context);
- break;
+ FSHOW((stderr, "/<trap pending interrupt>\n"));
+ arch_skip_instruction(context);
+ interrupt_handle_pending(context);
+ break;
case trap_Halt:
- /* Note: the old CMU CL code tried to save FPU state
- * here, and restore it after we do our thing, but there
- * seems to be no point in doing that, since we're just
- * going to lose(..) anyway. */
- fake_foreign_function_call(context);
- lose("%%PRIMITIVE HALT called; the party is over.");
+ /* Note: the old CMU CL code tried to save FPU state
+ * here, and restore it after we do our thing, but there
+ * seems to be no point in doing that, since we're just
+ * going to lose(..) anyway. */
+ fake_foreign_function_call(context);
+ lose("%%PRIMITIVE HALT called; the party is over.");
case trap_Error:
case trap_Cerror:
- FSHOW((stderr, "<trap error/cerror %d>\n", code));
- interrupt_internal_error(signal, info, context, code==trap_Cerror);
- break;
+ FSHOW((stderr, "<trap error/cerror %d>\n", code));
+ interrupt_internal_error(signal, info, context, code==trap_Cerror);
+ break;
case trap_Breakpoint:
- --*os_context_pc_addr(context);
- handle_breakpoint(signal, info, context);
- break;
+ --*os_context_pc_addr(context);
+ handle_breakpoint(signal, info, context);
+ break;
case trap_FunEndBreakpoint:
- --*os_context_pc_addr(context);
- *os_context_pc_addr(context) =
- (unsigned long)handle_fun_end_breakpoint(signal, info, context);
- break;
+ --*os_context_pc_addr(context);
+ *os_context_pc_addr(context) =
+ (unsigned long)handle_fun_end_breakpoint(signal, info, context);
+ break;
default:
- FSHOW((stderr,"/[C--trap default %d %d %x]\n",
- signal, code, context));
- interrupt_handle_now(signal, info, context);
- break;
+ FSHOW((stderr,"/[C--trap default %d %d %x]\n",
+ signal, code, context));
+ interrupt_handle_now(signal, info, context);
+ break;
}
}
* things.
*/
-void
+void
arch_write_linkage_table_jmp(char * reloc, void * fun)
{
unsigned long addr = (unsigned long) fun;
*reloc++ = 0x00; /* ... */
for (i = 0; i < 8; i++) {
- *reloc++ = addr & 0xff;
- addr >>= 8;
+ *reloc++ = addr & 0xff;
+ addr >>= 8;
}
/* write a nop for good measure. */
/* These setup and check *both* the sse2 and x87 FPUs. While lisp code
only uses the sse2 FPU, other code (such as libc) may use the x87 FPU.
*/
-
+
unsigned int
arch_get_fp_modes()
{
unsigned int temp;
unsigned int result;
- /* return the x87 exception flags ored in with the sse2
+ /* return the x87 exception flags ored in with the sse2
* control+status flags */
asm ("fnstsw %0" : "=m" (temp));
result = temp;
/* turn trap enable bits into exception mask */
mxcsr ^= 0x3F << 7;
-
+
/* set x87 modes */
asm ("fnstenv %0" : "=m" (f_env));
/* set control word: always long double precision
/* set status word: only override exception flags, from mxcsr */
f_env.sw &= ~0x3F;
f_env.sw |= (mxcsr & 0x3F);
-
+
asm ("fldenv %0" : : "m" (f_env));
-
+
/* now, simply, load up the mxcsr register */
temp = mxcsr;
asm ("ldmxcsr %0" : : "m" (temp));
projects / sbcl.git / blobdiff