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-rw-r--r--debuggerd/x86/unwind.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/debuggerd/x86/unwind.c b/debuggerd/x86/unwind.c
deleted file mode 100644
index 0a7f04c88..000000000
--- 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;
-}
-