* files for more information.
*/
+/* needed if we want dladdr() and Dl_Info from glibc's dlfcn.h */
+#define _GNU_SOURCE
+
#include <stdio.h>
#include <signal.h>
#include "sbcl.h"
#include "thread.h"
#ifdef LISP_FEATURE_OS_PROVIDES_DLADDR
-# ifndef __USE_GNU
-/* __USE_GNU needed if we want dladdr() and Dl_Info from glibc. */
-# define __USE_GNU
-# endif
-# include "dlfcn.h"
+# include <dlfcn.h>
#endif
#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
{
struct thread *thread=arch_os_get_current_thread();
return (((char *) thread->control_stack_start <= (char *) pointer) &&
- ((char *) pointer < (char *) current_control_stack_pointer));
+ ((char *) pointer < (char *) access_control_stack_pointer(thread)));
}
static void
call_info_from_lisp_state(struct call_info *info)
{
- info->frame = (struct call_frame *)current_control_frame_pointer;
+ info->frame = (struct call_frame *)access_control_frame_pointer(arch_os_get_current_thread());
info->interrupted = 0;
info->code = NULL;
info->lra = 0;
static void
call_info_from_context(struct call_info *info, os_context_t *context)
{
- unsigned long pc;
+ uword_t pc;
info->interrupted = 1;
if (lowtag_of(*os_context_register_addr(context, reg_CODE))
/* We tried to call a function, but crapped out before $CODE could
* be fixed up. Probably an undefined function. */
info->frame =
- (struct call_frame *)(unsigned long)
+ (struct call_frame *)(uword_t)
(*os_context_register_addr(context, reg_OCFP));
info->lra = (lispobj)(*os_context_register_addr(context, reg_LRA));
info->code = code_pointer(info->lra);
- pc = (unsigned long)native_pointer(info->lra);
+ pc = (uword_t)native_pointer(info->lra);
}
else {
info->frame =
- (struct call_frame *)(unsigned long)
+ (struct call_frame *)(uword_t)
(*os_context_register_addr(context, reg_CFP));
info->code =
code_pointer(*os_context_register_addr(context, reg_CODE));
pc = *os_context_pc_addr(context);
}
if (info->code != NULL)
- info->pc = pc - (unsigned long) info->code -
+ info->pc = pc - (uword_t) info->code -
#ifndef LISP_FEATURE_ALPHA
(HEADER_LENGTH(info->code->header) * sizeof(lispobj));
#else
int free_ici;
if (!cs_valid_pointer_p(info->frame)) {
- printf("Bogus callee value (0x%08lx).\n", (unsigned long)info->frame);
+ printf("Bogus callee value (0x%08lx).\n", (uword_t)info->frame);
return 0;
}
while (free_ici-- > 0) {
os_context_t *context =
thread->interrupt_contexts[free_ici];
- if ((struct call_frame *)(unsigned long)
+ if ((struct call_frame *)(uword_t)
(*os_context_register_addr(context, reg_CFP))
== info->frame) {
call_info_from_context(info, context);
else {
info->code = code_pointer(info->lra);
if (info->code != NULL)
- info->pc = (unsigned long)native_pointer(info->lra) -
- (unsigned long)info->code -
+ info->pc = (uword_t)native_pointer(info->lra) -
+ (uword_t)info->code -
#ifndef LISP_FEATURE_ALPHA
(HEADER_LENGTH(info->code->header) * sizeof(lispobj));
#else
}
void
-backtrace(int nframes)
+lisp_backtrace(int nframes)
{
struct call_info info;
call_info_from_lisp_state(&info);
do {
- printf("<Frame 0x%08lx%s, ", (unsigned long) info.frame,
+ printf("<Frame 0x%08lx%s, ", (uword_t) info.frame,
info.interrupted ? " [interrupted]" : "");
if (info.code != (struct code *) 0) {
lispobj function;
- printf("CODE: 0x%08lX, ", (unsigned long) info.code | OTHER_POINTER_LOWTAG);
+ printf("CODE: 0x%08lX, ", (uword_t) info.code | OTHER_POINTER_LOWTAG);
#ifndef LISP_FEATURE_ALPHA
function = info.code->entry_points;
printf("CODE: ???, ");
if (info.lra != NIL)
- printf("LRA: 0x%08lx, ", (unsigned long)info.lra);
+ printf("LRA: 0x%08lx, ", (uword_t)info.lra);
else
printf("<no LRA>, ");
static int
altstack_pointer_p (void *p) {
#ifndef LISP_FEATURE_WIN32
- void* stack_start = arch_os_get_current_thread() + dynamic_values_bytes;
+ void* stack_start = ((void *)arch_os_get_current_thread()) + dynamic_values_bytes;
void* stack_end = stack_start + 32*SIGSTKSZ;
return (p > stack_start && p <= stack_end);
/* we are using sizeof(long) here, because that is the right value on both
* x86 and x86-64. (But note that false positives would not cause much harm
* given the heuristical nature of x86_call_context.) */
- unsigned long stack_alignment = sizeof(long);
+ uword_t stack_alignment = sizeof(void*);
return (altstack_pointer_p(p)
|| (p < (void *) arch_os_get_current_thread()->control_stack_end
&& (p > (void *) &p || altstack_pointer_p(&p))
- && (((unsigned long) p) & (stack_alignment-1)) == 0));
+ && (((uword_t) p) & (stack_alignment-1)) == 0));
}
static int
/* the check against 4096 is still a mystery to everyone interviewed about
* it, but recent changes to sb-sprof seem to suggest that such values
* do occur sometimes. */
- return ((unsigned long) ra) > 4096 && !stack_pointer_p (ra);
+ return ((uword_t) ra) > 4096 && !stack_pointer_p (ra);
}
static int
x86_call_context (void *fp, void **ra, void **ocfp)
{
- void *lisp_ocfp;
- void *lisp_ra;
void *c_ocfp;
void *c_ra;
- int lisp_valid_p, c_valid_p;
+ int c_valid_p;
if (!stack_pointer_p(fp))
return 0;
c_ocfp = *((void **) fp);
c_ra = *((void **) fp + 1);
- lisp_ocfp = *((void **) fp - 1);
- lisp_ra = *((void **) fp - 2);
- lisp_valid_p = (lisp_ocfp > fp
- && stack_pointer_p(lisp_ocfp)
- && ra_pointer_p(lisp_ra));
c_valid_p = (c_ocfp > fp
&& stack_pointer_p(c_ocfp)
&& ra_pointer_p(c_ra));
- if (lisp_valid_p && c_valid_p) {
- void *lisp_path_fp;
- void *c_path_fp;
- void *dummy;
-
- int lisp_path_p = x86_call_context(lisp_ocfp, &lisp_path_fp, &dummy);
- int c_path_p = x86_call_context(c_ocfp, &c_path_fp, &dummy);
-
- if (lisp_path_p && c_path_p) {
-#if defined __FreeBSD__ && __FreeBSD_version > 400000
- if (lisp_ocfp > c_ocfp)
- *ra = lisp_ra, *ocfp = lisp_ocfp;
- else
- *ra = c_ra, *ocfp = c_ocfp;
-#else
- *ra = lisp_ra, *ocfp = lisp_ocfp;
-#endif
- }
- else if (lisp_path_p)
- *ra = lisp_ra, *ocfp = lisp_ocfp;
- else if (c_path_p)
- *ra = c_ra, *ocfp = c_ocfp;
- else
- return 0;
- }
- else if (lisp_valid_p)
- *ra = lisp_ra, *ocfp = lisp_ocfp;
- else if (c_valid_p)
+ if (c_valid_p)
*ra = c_ra, *ocfp = c_ocfp;
else
return 0;
struct compiled_debug_fun *
debug_function_from_pc (struct code* code, void *pc)
{
- unsigned long code_header_len = sizeof(lispobj) * HeaderValue(code->header);
- unsigned long offset
- = (unsigned long) pc - (unsigned long) code - code_header_len;
+ uword_t code_header_len = sizeof(lispobj) * HeaderValue(code->header);
+ uword_t offset
+ = (uword_t) pc - (uword_t) code - code_header_len;
struct compiled_debug_fun *df;
struct compiled_debug_info *di;
struct vector *v;
if (i == len)
return ((struct compiled_debug_fun *) native_pointer(v->data[i - 1]));
- if (offset >= (unsigned long)fixnum_value(df->elsewhere_pc)) {
+ if (offset >= (uword_t)fixnum_value(df->elsewhere_pc)) {
struct compiled_debug_fun *p
= ((struct compiled_debug_fun *) native_pointer(v->data[i + 1]));
next_pc = fixnum_value(p->elsewhere_pc);
}
}
-/* This function has been split from backtrace() to enable Lisp
+void
+describe_thread_state(void)
+{
+ sigset_t mask;
+ struct thread *thread = arch_os_get_current_thread();
+ struct interrupt_data *data = thread->interrupt_data;
+#ifndef LISP_FEATURE_WIN32
+ get_current_sigmask(&mask);
+ printf("Signal mask:\n");
+ printf(" SIGALRM = %d\n", sigismember(&mask, SIGALRM));
+ printf(" SIGINT = %d\n", sigismember(&mask, SIGINT));
+ printf(" SIGPROF = %d\n", sigismember(&mask, SIGPROF));
+#ifdef SIG_STOP_FOR_GC
+ printf(" SIG_STOP_FOR_GC = %d\n", sigismember(&mask, SIG_STOP_FOR_GC));
+#endif
+#endif
+ printf("Specials:\n");
+ printf(" *GC-INHIBIT* = %s\n", (SymbolValue(GC_INHIBIT, thread) == T) ? "T" : "NIL");
+ printf(" *GC-PENDING* = %s\n",
+ (SymbolValue(GC_PENDING, thread) == T) ?
+ "T" : ((SymbolValue(GC_PENDING, thread) == NIL) ?
+ "NIL" : ":IN-PROGRESS"));
+ printf(" *INTERRUPTS-ENABLED* = %s\n", (SymbolValue(INTERRUPTS_ENABLED, thread) == T) ? "T" : "NIL");
+#ifdef STOP_FOR_GC_PENDING
+ printf(" *STOP-FOR-GC-PENDING* = %s\n", (SymbolValue(STOP_FOR_GC_PENDING, thread) == T) ? "T" : "NIL");
+#endif
+ printf("Pending handler = %p\n", data->pending_handler);
+}
+
+/* This function has been split from lisp_backtrace() to enable Lisp
* backtraces from gdb with call backtrace_from_fp(...). Useful for
* example when debugging threading deadlocks.
*/
if (dladdr(ra, &info)) {
printf("Foreign function %s, fp = 0x%lx, ra = 0x%lx",
info.dli_sname,
- (unsigned long) next_fp,
- (unsigned long) ra);
+ (uword_t) next_fp,
+ (uword_t) ra);
} else
#endif
- printf("Foreign fp = 0x%lx, ra = 0x%lx",
- (unsigned long) next_fp,
- (unsigned long) ra);
+ printf("Foreign fp = 0x%p, ra = 0x%p",
+ (void*) next_fp,
+ (void*) ra);
}
putchar('\n');
}
void
-backtrace(int nframes)
+lisp_backtrace(int nframes)
{
void *fp;