1.0.29.44: Complex float improvements

[sbcl.git] / src / runtime / backtrace.c

diff --git a/src/runtime/backtrace.c b/src/runtime/backtrace.c
index 07114aa..348d204 100644 (file)
--- a/src/runtime/backtrace.c
+++ b/src/runtime/backtrace.c
@@ -34,9 +34,11 @@
 #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))
@@ -285,11 +287,15 @@ backtrace(int nframes)
 
 static int
 altstack_pointer_p (void *p) {
-    char* stack_start = ((char *) arch_os_get_current_thread())
-        + dynamic_values_bytes;
-    char* stack_end = stack_start + 32*SIGSTKSZ;
+#ifndef LISP_FEATURE_WIN32
+    void* stack_start = 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
@@ -318,55 +324,21 @@ ra_pointer_p (void *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;
@@ -402,7 +374,7 @@ debug_function_from_pc (struct code* code, void *pc)
     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);
@@ -522,6 +494,35 @@ print_entry_points (struct code *code)
   }
 }
 
+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 backtrace() to enable Lisp
  * backtraces from gdb with call backtrace_from_fp(...). Useful for
  * example when debugging threading deadlocks.
@@ -573,7 +574,6 @@ void
 backtrace(int nframes)
 {
   void *fp;
-  int i;
 
 #if defined(LISP_FEATURE_X86)
   asm("movl %%ebp,%0" : "=g" (fp));