Improve the handling of missing elf symtab and missing symbol sizes

* Generate artificial symbol names from eh_fame during symbol parsing
  so these symbols are already present when we calcualte the size of
  the symbols where 0 is specified.
* Fix symbol size calculation for the last symbol in the file where
  it have to last until the end of the parent section.

This is the re-commit of the original change after fixing some test
failures on OSX.

Differential revision: http://reviews.llvm.org/D16996

llvm-svn: 261205

1 files changed, 1 insertions, 8 deletions

diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index 5d4c2178211..0b86403354a 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -4518,7 +4518,6 @@ ObjectFileMachO::ParseSymtab ()
 
         if (function_starts_count > 0)
         {
-            char synthetic_function_symbol[PATH_MAX];
             uint32_t num_synthetic_function_symbols = 0;
             for (i=0; i<function_starts_count; ++i)
             {
@@ -4533,7 +4532,6 @@ ObjectFileMachO::ParseSymtab ()
                     num_syms = sym_idx + num_synthetic_function_symbols;
                     sym = symtab->Resize (num_syms);
                 }
-                uint32_t synthetic_function_symbol_idx = 0;
                 for (i=0; i<function_starts_count; ++i)
                 {
                     const FunctionStarts::Entry *func_start_entry = function_starts.GetEntryAtIndex (i);
@@ -4568,13 +4566,8 @@ ObjectFileMachO::ParseSymtab ()
                                 {
                                     symbol_byte_size = section_end_file_addr - symbol_file_addr;
                                 }
-                                snprintf (synthetic_function_symbol,
-                                          sizeof(synthetic_function_symbol),
-                                          "___lldb_unnamed_function%u$$%s",
-                                          ++synthetic_function_symbol_idx,
-                                          module_sp->GetFileSpec().GetFilename().GetCString());
                                 sym[sym_idx].SetID (synthetic_sym_id++);
-                                sym[sym_idx].GetMangled().SetDemangledName(ConstString(synthetic_function_symbol));
+                                sym[sym_idx].GetMangled().SetDemangledName(GetNextSyntheticSymbolName());
                                 sym[sym_idx].SetType (eSymbolTypeCode);
                                 sym[sym_idx].SetIsSynthetic (true);
                                 sym[sym_idx].GetAddressRef() = symbol_addr;