[PATCH v1 11/16] dwarf-reader: read_context: use new symtab in *_symbols_is_exported

[Matthias Maennich <maennich@google.com>]

Testing whether a symbol is exported can be simplified using the new
symtab implementation. The same holds true for whether a symbol is
exported via ksymtab in case of linux kernel binaries. So, do that.

	* src/abg-dwarf-reader.cc (function_symbol_is_exported): Use new
	  symtab implementation.
	  (variable_symbol_is_exported): Likewise.

Reviewed-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
---
 src/abg-dwarf-reader.cc | 32 ++++++++------------------------
 1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/src/abg-dwarf-reader.cc b/src/abg-dwarf-reader.cc
index d7b73adb4874..87cf34b2e5b7 100644
--- a/src/abg-dwarf-reader.cc
+++ b/src/abg-dwarf-reader.cc
@@ -5515,11 +5515,11 @@ public:
   elf_symbol_sptr
   function_symbol_is_exported(GElf_Addr symbol_address) const
   {
-    elf_symbol_sptr symbol = lookup_elf_fn_symbol_from_address(symbol_address);
+    elf_symbol_sptr symbol = symtab()->lookup_symbol(symbol_address);
     if (!symbol)
       return symbol;
 
-    if (!symbol->is_public())
+    if (!symbol->is_function() || !symbol->is_public())
       return elf_symbol_sptr();
 
     address_set_sptr set;
@@ -5528,16 +5528,8 @@ public:
 
     if (looking_at_linux_kernel_binary)
       {
-	if ((set = linux_exported_fn_syms()))
-	  {
-	    if (set->find(symbol_address) != set->end())
-	      return symbol;
-	  }
-	if ((set = linux_exported_gpl_fn_syms()))
-	  {
-	    if (set->find(symbol_address) != set->end())
-	      return symbol;
-	  }
+	if (symbol->is_in_ksymtab())
+	  return symbol;
 	return elf_symbol_sptr();
       }
 
@@ -5555,11 +5547,11 @@ public:
   elf_symbol_sptr
   variable_symbol_is_exported(GElf_Addr symbol_address) const
   {
-    elf_symbol_sptr symbol = lookup_elf_var_symbol_from_address(symbol_address);
+    elf_symbol_sptr symbol = symtab()->lookup_symbol(symbol_address);
     if (!symbol)
       return symbol;
 
-    if (!symbol->is_public())
+    if (!symbol->is_variable() || !symbol->is_public())
       return elf_symbol_sptr();
 
     address_set_sptr set;
@@ -5568,16 +5560,8 @@ public:
 
     if (looking_at_linux_kernel_binary)
       {
-	if ((set = linux_exported_var_syms()))
-	  {
-	    if (set->find(symbol_address) != set->end())
-	      return symbol;
-	  }
-	if ((set = linux_exported_gpl_var_syms()))
-	  {
-	    if (set->find(symbol_address) != set->end())
-	      return symbol;
-	  }
+	if (symbol->is_in_ksymtab())
+	  return symbol;
 	return elf_symbol_sptr();
       }
 
-- 
2.27.0.111.gc72c7da667-goog