#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
-#include "dlfcn.h"
+# define __USE_GNU
+# endif
+# 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;
#else
static int
+altstack_pointer_p (void *p) {
+#ifndef LISP_FEATURE_WIN32
+ 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);
+#else
+ /* Win32 doesn't do altstack */
+ return 0;
+#endif
+}
+
+static int
stack_pointer_p (void *p)
{
/* 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);
- return (p < (void *) arch_os_get_current_thread()->control_stack_end
- && p > (void *) &p
- && (((unsigned long) p) & (stack_alignment-1)) == 0);
+
+ 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));
}
static int
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;
if (i == len)
return ((struct compiled_debug_fun *) native_pointer(v->data[i - 1]));
- if (offset >= fixnum_value(df->elsewhere_pc)) {
+ if (offset >= (unsigned long)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);
}
void
-backtrace(int nframes)
+describe_thread_state(void)
{
- void *fp;
- int i;
-
-#if defined(LISP_FEATURE_X86)
- asm("movl %%ebp,%0" : "=g" (fp));
-#elif defined (LISP_FEATURE_X86_64)
- asm("movq %%rbp,%0" : "=g" (fp));
-#else
-#error "How did we get here?"
+ 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 backtrace() to enable Lisp
+ * backtraces from gdb with call backtrace_from_fp(...). Useful for
+ * example when debugging threading deadlocks.
+ */
+void
+backtrace_from_fp(void *fp, int nframes)
+{
+ int i;
for (i = 0; i < nframes; ++i) {
lispobj *p;
}
}
+void
+backtrace(int nframes)
+{
+ void *fp;
+
+#if defined(LISP_FEATURE_X86)
+ asm("movl %%ebp,%0" : "=g" (fp));
+#elif defined (LISP_FEATURE_X86_64)
+ asm("movq %%rbp,%0" : "=g" (fp));
+#else
+#error "How did we get here?"
+#endif
+
+ backtrace_from_fp(fp, nframes);
+}
+
#endif
projects / sbcl.git / blobdiff