[sdb] Add an API to make the contents of the 'State Machine Hoisted Local Scopes...

[mono.git] / mono / metadata / debug-mono-ppdb.c

diff --git a/mono/metadata/debug-mono-ppdb.c b/mono/metadata/debug-mono-ppdb.c
index 3ad5235610a05a02fff9f0ff3282548d6fe13715..9a5b01a6b2b21c54d87a83d2b11f63e0adae2a6b 100644 (file)
--- a/mono/metadata/debug-mono-ppdb.c
+++ b/mono/metadata/debug-mono-ppdb.c
@@ -61,6 +61,9 @@ typedef struct {
        guint64 referenced_tables;
 } PdbStreamHeader;
 
+static const char*
+lookup_custom_debug_information (MonoImage* image, guint32 token, uint8_t parent_type, guint8* guid);
+
 static gboolean
 get_pe_debug_guid (MonoImage *image, guint8 *out_guid, gint32 *out_age, gint32 *out_timestamp)
 {
@@ -606,6 +609,27 @@ mono_ppdb_lookup_locals (MonoDebugMethodInfo *minfo)
                }
        }
 
+       /*
+        * Read scope information for hoisted variables, if it exists.
+        * Its stored in the CustomDebugInformation table.
+        */
+       guint8 hoisted_scopes_guid [16] = { 0x1E, 0xA6, 0xA9, 0x6D,  0xC7, 0xF8, 0x74, 0x48,   0xBE, 0x62, 0x68, 0xBC, 0x56, 0x30, 0xDF, 0x71 };
+       char const *blob = lookup_custom_debug_information (image, method->token, MONO_HASCUSTOMDEBUGINFO_METHODDEF, hoisted_scopes_guid);
+       if (blob) {
+               const char *ptr = blob;
+               int size = mono_metadata_decode_blob_size (ptr, &ptr);
+               g_assert (size % 4 == 0);
+               size /= 4;
+               res->num_hoisted = size;
+               res->hoisted = g_new0 (MonoHoistedLocalScope, res->num_hoisted);
+               for (int hindex = 0; hindex < size; ++hindex) {
+                       res->hoisted [hindex].start_offset = read16 (ptr);
+                       ptr += 4;
+                       res->hoisted [hindex].end_offset = res->hoisted [hindex].start_offset + read16 (ptr);
+                       ptr += 4;
+               }
+       }
+
        return res;
 }