[PATCH 1/9] dbghelp/dwarf: better handling of SymTagExe and SymTagCompiland

Eric Pouech eric.pouech at gmail.com
Tue Oct 5 07:25:04 CDT 2021


- children of SymTagExe and SymTagCompiland can now be enumerated
- SymTagCompiland's lexical parent is now reported to SymTagExe
- native doesn't expose compiland's address, so don't expose it

Signed-off-by: Eric Pouech <eric.pouech at gmail.com>

---
 dlls/dbghelp/dbghelp_private.h |    1 +
 dlls/dbghelp/symbol.c          |    4 ++++
 dlls/dbghelp/type.c            |   16 +++++++++++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/dlls/dbghelp/dbghelp_private.h b/dlls/dbghelp/dbghelp_private.h
index 0587ce13914..2fc5a7e5eca 100644
--- a/dlls/dbghelp/dbghelp_private.h
+++ b/dlls/dbghelp/dbghelp_private.h
@@ -169,6 +169,7 @@ struct symt_block
 struct symt_module /* in fact any of .exe, .dll... */
 {
     struct symt                 symt;           /* module */
+    struct vector               vchildren;      /* compilation units */
     struct module*              module;
 };
 
diff --git a/dlls/dbghelp/symbol.c b/dlls/dbghelp/symbol.c
index e2fde00456a..091ea173305 100644
--- a/dlls/dbghelp/symbol.c
+++ b/dlls/dbghelp/symbol.c
@@ -191,6 +191,7 @@ struct symt_module* symt_new_module(struct module* module)
     {
         sym->symt.tag = SymTagExe;
         sym->module   = module;
+        vector_init(&sym->vchildren, sizeof(struct symt*), 8);
     }
     return sym;
 }
@@ -199,6 +200,7 @@ struct symt_compiland* symt_new_compiland(struct module* module,
                                           ULONG_PTR address, unsigned src_idx)
 {
     struct symt_compiland*    sym;
+    struct symt_compiland**   p;
 
     TRACE_(dbghelp_symt)("Adding compiland symbol %s:%s\n",
                          debugstr_w(module->modulename), source_get(module, src_idx));
@@ -210,6 +212,8 @@ struct symt_compiland* symt_new_compiland(struct module* module,
         sym->source    = src_idx;
         vector_init(&sym->vchildren, sizeof(struct symt*), 32);
         sym->user      = NULL;
+        p = vector_add(&module->top->vchildren, &module->pool);
+        *p = sym;
     }
     return sym;
 }
diff --git a/dlls/dbghelp/type.c b/dlls/dbghelp/type.c
index 70719cf6b7c..4eb230e2755 100644
--- a/dlls/dbghelp/type.c
+++ b/dlls/dbghelp/type.c
@@ -158,11 +158,10 @@ BOOL symt_get_address(const struct symt* type, ULONG64* addr)
     case SymTagThunk:
         *addr = ((const struct symt_thunk*)type)->address;
         break;
-    case SymTagCompiland:
-        *addr = ((const struct symt_compiland*)type)->address;
-        break;
     default:
         FIXME("Unsupported sym-tag %s for get-address\n", symt_get_tag_str(type->tag));
+        /* fall through */
+    case SymTagCompiland:
         return FALSE;
     }
     return TRUE;
@@ -549,6 +548,8 @@ BOOL symt_get_info(struct module* module, const struct symt* type,
 
             switch (type->tag)
             {
+            case SymTagExe:          v = &((const struct symt_module*)type)->vchildren; break;
+            case SymTagCompiland:    v = &((const struct symt_compiland*)type)->vchildren; break;
             case SymTagUDT:          v = &((const struct symt_udt*)type)->vchildren; break;
             case SymTagEnum:         v = &((const struct symt_enum*)type)->vchildren; break;
             case SymTagFunctionType: v = &((const struct symt_function_signature*)type)->vchildren; break;
@@ -594,6 +595,12 @@ BOOL symt_get_info(struct module* module, const struct symt* type,
     case TI_GET_CHILDRENCOUNT:
         switch (type->tag)
         {
+        case SymTagExe:
+            X(DWORD) = vector_length(&((const struct symt_module*)type)->vchildren);
+            break;
+        case SymTagCompiland:
+            X(DWORD) = vector_length(&((const struct symt_compiland*)type)->vchildren);
+            break;
         case SymTagUDT:
             X(DWORD) = vector_length(&((const struct symt_udt*)type)->vchildren);
             break;
@@ -697,6 +704,9 @@ BOOL symt_get_info(struct module* module, const struct symt* type,
     case TI_GET_LEXICALPARENT:
         switch (type->tag)
         {
+        case SymTagCompiland:
+            X(DWORD) = symt_ptr2index(module, &((const struct symt_compiland*)type)->container->symt);
+            break;
         case SymTagBlock:
             X(DWORD) = symt_ptr2index(module, ((const struct symt_block*)type)->container);
             break;




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