[Lldb-commits] [PATCH] D118265: [lldb] Make ReadCStringFromMemory default to read from the file-cache.

[Augusto Noronha via Phabricator via lldb-commits]

augusto2112 created this revision.
augusto2112 added reviewers: jasonmolenda, aprantl.
augusto2112 requested review of this revision.
Herald added a project: LLDB.
Herald added a subscriber: lldb-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D118265

Files:
  lldb/include/lldb/Target/Target.h
  lldb/source/Target/Target.cpp


Index: lldb/source/Target/Target.cpp
===================================================================
--- lldb/source/Target/Target.cpp
+++ lldb/source/Target/Target.cpp
@@ -1829,13 +1829,14 @@
 }
 
 size_t Target::ReadCStringFromMemory(const Address &addr, std::string &out_str,
-                                     Status &error) {
+                                     Status &error, bool force_live_memory) {
   char buf[256];
   out_str.clear();
   addr_t curr_addr = addr.GetLoadAddress(this);
   Address address(addr);
   while (true) {
-    size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error);
+    size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error,
+                                          force_live_memory);
     if (length == 0)
       break;
     out_str.append(buf, length);
@@ -1851,7 +1852,8 @@
 }
 
 size_t Target::ReadCStringFromMemory(const Address &addr, char *dst,
-                                     size_t dst_max_len, Status &result_error) 
{
+                                     size_t dst_max_len, Status &result_error,
+                                     bool force_live_memory) {
   size_t total_cstr_len = 0;
   if (dst && dst_max_len) {
     result_error.Clear();
@@ -1874,8 +1876,8 @@
           cache_line_size - (curr_addr % cache_line_size);
       addr_t bytes_to_read =
           std::min<addr_t>(bytes_left, cache_line_bytes_left);
-      size_t bytes_read =
-          ReadMemory(address, curr_dst, bytes_to_read, error, true);
+      size_t bytes_read = ReadMemory(address, curr_dst, bytes_to_read, error,
+                                     force_live_memory);
 
       if (bytes_read == 0) {
         result_error = error;
Index: lldb/include/lldb/Target/Target.h
===================================================================
--- lldb/include/lldb/Target/Target.h
+++ lldb/include/lldb/Target/Target.h
@@ -1019,10 +1019,11 @@
                     lldb::addr_t *load_addr_ptr = nullptr);
 
   size_t ReadCStringFromMemory(const Address &addr, std::string &out_str,
-                               Status &error);
+                               Status &error, bool force_live_memory = false);
 
   size_t ReadCStringFromMemory(const Address &addr, char *dst,
-                               size_t dst_max_len, Status &result_error);
+                               size_t dst_max_len, Status &result_error,
+                               bool force_live_memory = false);
 
   /// Read a NULL terminated string from memory
   ///



Index: lldb/source/Target/Target.cpp
===================================================================
--- lldb/source/Target/Target.cpp
+++ lldb/source/Target/Target.cpp
@@ -1829,13 +1829,14 @@
 }
 
 size_t Target::ReadCStringFromMemory(const Address &addr, std::string &out_str,
-                                     Status &error) {
+                                     Status &error, bool force_live_memory) {
   char buf[256];
   out_str.clear();
   addr_t curr_addr = addr.GetLoadAddress(this);
   Address address(addr);
   while (true) {
-    size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error);
+    size_t length = ReadCStringFromMemory(address, buf, sizeof(buf), error,
+                                          force_live_memory);
     if (length == 0)
       break;
     out_str.append(buf, length);
@@ -1851,7 +1852,8 @@
 }
 
 size_t Target::ReadCStringFromMemory(const Address &addr, char *dst,
-                                     size_t dst_max_len, Status &result_error) {
+                                     size_t dst_max_len, Status &result_error,
+                                     bool force_live_memory) {
   size_t total_cstr_len = 0;
   if (dst && dst_max_len) {
     result_error.Clear();
@@ -1874,8 +1876,8 @@
           cache_line_size - (curr_addr % cache_line_size);
       addr_t bytes_to_read =
           std::min<addr_t>(bytes_left, cache_line_bytes_left);
-      size_t bytes_read =
-          ReadMemory(address, curr_dst, bytes_to_read, error, true);
+      size_t bytes_read = ReadMemory(address, curr_dst, bytes_to_read, error,
+                                     force_live_memory);
 
       if (bytes_read == 0) {
         result_error = error;
Index: lldb/include/lldb/Target/Target.h
===================================================================
--- lldb/include/lldb/Target/Target.h
+++ lldb/include/lldb/Target/Target.h
@@ -1019,10 +1019,11 @@
                     lldb::addr_t *load_addr_ptr = nullptr);
 
   size_t ReadCStringFromMemory(const Address &addr, std::string &out_str,
-                               Status &error);
+                               Status &error, bool force_live_memory = false);
 
   size_t ReadCStringFromMemory(const Address &addr, char *dst,
-                               size_t dst_max_len, Status &result_error);
+                               size_t dst_max_len, Status &result_error,
+                               bool force_live_memory = false);
 
   /// Read a NULL terminated string from memory
   ///

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