Use libcorkscrew in debuggerd.

Change-Id: I5e3645a39d96c808f87075b49111d0262a19a0c8
diff --git a/debuggerd/x86/machine.c b/debuggerd/x86/machine.c
index 9d418cf..57f51c8 100644
--- a/debuggerd/x86/machine.c
+++ b/debuggerd/x86/machine.c
@@ -31,31 +31,43 @@
 #include <cutils/sockets.h>
 #include <cutils/properties.h>
 
+#include <corkscrew/backtrace.h>
+#include <corkscrew/ptrace.h>
+
 #include <linux/input.h>
 
+#include "../machine.h"
 #include "../utility.h"
-#include "x86_utility.h"
 
-void dump_registers(int tfd, int pid, bool at_fault)
-{
+static void dump_registers(ptrace_context_t* context __attribute((unused)),
+        int tfd, pid_t pid, bool at_fault) {
     struct pt_regs_x86 r;
     bool only_in_tombstone = !at_fault;
 
     if(ptrace(PTRACE_GETREGS, pid, 0, &r)) {
-        _LOG(tfd, only_in_tombstone,
-             "cannot get registers: %s\n", strerror(errno));
+        _LOG(tfd, only_in_tombstone, "cannot get registers: %s\n", strerror(errno));
         return;
     }
-//if there is no stack, no print just like arm
+    //if there is no stack, no print just like arm
     if(!r.ebp)
         return;
-    _LOG(tfd, only_in_tombstone, " eax %08x  ebx %08x  ecx %08x  edx %08x\n",
+    _LOG(tfd, only_in_tombstone, "    eax %08x  ebx %08x  ecx %08x  edx %08x\n",
          r.eax, r.ebx, r.ecx, r.edx);
-    _LOG(tfd, only_in_tombstone, " esi %08x  edi %08x\n",
+    _LOG(tfd, only_in_tombstone, "    esi %08x  edi %08x\n",
          r.esi, r.edi);
-    _LOG(tfd, only_in_tombstone, " xcs %08x  xds %08x  xes %08x  xfs %08x xss %08x\n",
+    _LOG(tfd, only_in_tombstone, "    xcs %08x  xds %08x  xes %08x  xfs %08x  xss %08x\n",
          r.xcs, r.xds, r.xes, r.xfs, r.xss);
-    _LOG(tfd, only_in_tombstone,
-         " eip %08x  ebp %08x  esp %08x  flags %08x\n",
+    _LOG(tfd, only_in_tombstone, "    eip %08x  ebp %08x  esp %08x  flags %08x\n",
          r.eip, r.ebp, r.esp, r.eflags);
 }
+
+void dump_thread(ptrace_context_t* context, int tfd, pid_t tid, bool at_fault) {
+    dump_registers(context, tfd, tid, at_fault);
+
+    dump_backtrace_and_stack(context, tfd, tid, at_fault);
+
+    if (at_fault) {
+        dump_nearby_maps(context, tfd, tid);
+    }
+}
+
diff --git a/debuggerd/x86/unwind.c b/debuggerd/x86/unwind.c
deleted file mode 100644
index 0a7f04c..0000000
--- a/debuggerd/x86/unwind.c
+++ /dev/null
@@ -1,86 +0,0 @@
-#include <cutils/logd.h>
-#include <sys/ptrace.h>
-#include "../utility.h"
-#include "x86_utility.h"
-
-
-int unwind_backtrace_with_ptrace_x86(int tfd, pid_t pid, mapinfo *map,
-                                 bool at_fault)
-{
-    struct pt_regs_x86 r;
-    unsigned int stack_level = 0;
-    unsigned int stack_depth = 0;
-    unsigned int rel_pc;
-    unsigned int stack_ptr;
-    unsigned int stack_content;
-
-    if(ptrace(PTRACE_GETREGS, pid, 0, &r)) return 0;
-    unsigned int eip = (unsigned int)r.eip;
-    unsigned int ebp = (unsigned int)r.ebp;
-    unsigned int cur_sp = (unsigned int)r.esp;
-    const mapinfo *mi;
-    const struct symbol* sym = 0;
-
-
-//ebp==0, it indicates that the stack is poped to the bottom or there is no stack at all.
-    while (ebp) {
-        mi = pc_to_mapinfo(map, eip, &rel_pc);
-
-        /* See if we can determine what symbol this stack frame resides in */
-        if (mi != 0 && mi->symbols != 0) {
-            sym = symbol_table_lookup(mi->symbols, rel_pc);
-        }
-        if (sym) {
-            _LOG(tfd, !at_fault, "    #%02d  eip: %08x  %s (%s)\n",
-                 stack_level, eip, mi ? mi->name : "", sym->name);
-        } else {
-            _LOG(tfd, !at_fault, "    #%02d  eip: %08x  %s\n",
-                 stack_level, eip, mi ? mi->name : "");
-        }
-
-        stack_level++;
-        if (stack_level >= STACK_DEPTH || eip == 0)
-            break;
-        eip = ptrace(PTRACE_PEEKTEXT, pid, (void*)(ebp + 4), NULL);
-        ebp = ptrace(PTRACE_PEEKTEXT, pid, (void*)ebp, NULL);
-    }
-    ebp = (unsigned int)r.ebp;
-    stack_depth = stack_level;
-    stack_level = 0;
-    if (ebp)
-        _LOG(tfd, !at_fault, "stack: \n");
-    while (ebp) {
-        stack_ptr = cur_sp;
-        while((int)(ebp - stack_ptr) >= 0) {
-            stack_content = ptrace(PTRACE_PEEKTEXT, pid, (void*)stack_ptr, NULL);
-            mi = pc_to_mapinfo(map, stack_content, &rel_pc);
-
-            /* See if we can determine what symbol this stack frame resides in */
-            if (mi != 0 && mi->symbols != 0) {
-                sym = symbol_table_lookup(mi->symbols, rel_pc);
-            }
-            if (sym) {
-                _LOG(tfd, !at_fault, "    #%02d  %08x  %08x  %s (%s)\n",
-                     stack_level, stack_ptr, stack_content, mi ? mi->name : "", sym->name);
-            } else {
-                _LOG(tfd, !at_fault, "    #%02d  %08x  %08x  %s\n",
-                     stack_level, stack_ptr, stack_content, mi ? mi->name : "");
-            }
-
-            stack_ptr = stack_ptr + 4;
-            //the stack frame may be very deep.
-            if((int)(stack_ptr - cur_sp) >= STACK_FRAME_DEPTH) {
-                _LOG(tfd, !at_fault, "    ......  ......  \n");
-                break;
-            }
-        }
-        cur_sp = ebp + 4;
-        stack_level++;
-        if (stack_level >= STACK_DEPTH || stack_level >= stack_depth)
-            break;
-        ebp = ptrace(PTRACE_PEEKTEXT, pid, (void*)ebp, NULL);
-    }
-
-    return stack_depth;
-}
-
diff --git a/debuggerd/x86/x86_utility.h b/debuggerd/x86/x86_utility.h
deleted file mode 100644
index ac6a885..0000000
--- a/debuggerd/x86/x86_utility.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define STACK_DEPTH 8
-#define STACK_FRAME_DEPTH 64
-
-typedef struct pt_regs_x86 {
-    long ebx;
-    long ecx;
-    long edx;
-    long esi;
-    long edi;
-    long ebp;
-    long eax;
-    int  xds;
-    int  xes;
-    int  xfs;
-    int  xgs;
-    long orig_eax;
-    long eip;
-    int  xcs;
-    long eflags;
-    long esp;
-    int  xss;
-}pt_regs_x86;
-