debuggerd: Fix missing include.

The structure user_vfp is incorrectly defined in bionic/libc/kernel/arch-arm/asm/ptrace.h
at the moment, while it should be under bionic/libc/kernel/arch-arm/asm/user.h instead.

Before moving its definition in the corresponding source files, we need to fix its users.
It happens that debuggerd is the only one for now, so fix this by including <linux/user.h>
instead (which will include <asm/user.h> and <asm/ptrace.h>).

Also, make the debug output less chatty by specifying all symbols to be listed
through XLOG2 instead of XLOG.

Change-Id: I16e0fa700945d86efd44ee885a84ad609c0a9b58
diff --git a/debuggerd/arm/machine.c b/debuggerd/arm/machine.c
index 4eb97a3..e765c3b 100644
--- a/debuggerd/arm/machine.c
+++ b/debuggerd/arm/machine.c
@@ -32,6 +32,7 @@
 #include <cutils/properties.h>
 
 #include <linux/input.h>
+#include <linux/user.h>
 
 #include "utility.h"
 
diff --git a/debuggerd/symbol_table.c b/debuggerd/symbol_table.c
index fd008fe..23572a3 100644
--- a/debuggerd/symbol_table.c
+++ b/debuggerd/symbol_table.c
@@ -50,7 +50,7 @@
     int length;
     char *base;
 
-    XLOG("Creating symbol table for %s\n", filename);
+    XLOG2("Creating symbol table for %s\n", filename);
     int fd = open(filename, O_RDONLY);
 
     if(fd < 0) {
@@ -126,7 +126,7 @@
                 dynsymbol_count++;
             }
         }
-        XLOG("Dynamic Symbol count: %d\n", dynsymbol_count);
+        XLOG2("Dynamic Symbol count: %d\n", dynsymbol_count);
     }
 
     if (sym_idx != -1) {
@@ -139,7 +139,7 @@
                 symbol_count++;
             }
         }
-        XLOG("Symbol count: %d\n", symbol_count);
+        XLOG2("Symbol count: %d\n", symbol_count);
     }
 
     // Now, create an entry in our symbol table structure for each symbol...
@@ -160,7 +160,7 @@
                 table->symbols[j].name = strdup(dynstr + dynsyms[i].st_name);
                 table->symbols[j].addr = dynsyms[i].st_value;
                 table->symbols[j].size = dynsyms[i].st_size;
-                XLOG("name: %s, addr: %x, size: %x\n",
+                XLOG2("name: %s, addr: %x, size: %x\n",
                     table->symbols[j].name, table->symbols[j].addr, table->symbols[j].size);
                 j++;
             }
@@ -176,7 +176,7 @@
                 table->symbols[j].name = strdup(str + syms[i].st_name);
                 table->symbols[j].addr = syms[i].st_value;
                 table->symbols[j].size = syms[i].st_size;
-                XLOG("name: %s, addr: %x, size: %x\n",
+                XLOG2("name: %s, addr: %x, size: %x\n",
                     table->symbols[j].name, table->symbols[j].addr, table->symbols[j].size);
                 j++;
             }
diff --git a/debuggerd/utility.h b/debuggerd/utility.h
index 0682b85..45e2067 100644
--- a/debuggerd/utility.h
+++ b/debuggerd/utility.h
@@ -57,10 +57,19 @@
 extern void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...);
 
 #define LOG(fmt...) _LOG(-1, 0, fmt)
+
+/* Set to 1 for normal debug traces */
 #if 0
 #define XLOG(fmt...) _LOG(-1, 0, fmt)
 #else
 #define XLOG(fmt...) do {} while(0)
 #endif
 
+/* Set to 1 for chatty debug traces. Includes all resolved dynamic symbols */
+#if 0
+#define XLOG2(fmt...) _LOG(-1, 0, fmt)
+#else
+#define XLOG2(fmt...) do {} while(0)
+#endif
+
 #endif