PR24704, Internal error building skiboot for powerpc64-linux-gnu

[binutils-gdb.git] / gdb / dwarf2read.h

diff --git a/gdb/dwarf2read.h b/gdb/dwarf2read.h
index 34c66167b5b5ce7e7f3e189c6790df1aeac6181f..9251bde125926bcb7d5d81d0a664f2b65012f47c 100644 (file)
--- a/gdb/dwarf2read.h
+++ b/gdb/dwarf2read.h
@@ -24,6 +24,7 @@
 #include "dwarf-index-cache.h"
 #include "filename-seen-cache.h"
 #include "gdb_obstack.h"
+#include "common/hash_enum.h"
 
 /* Hold 'maintenance (set|show) dwarf' commands.  */
 extern struct cmd_list_element *set_dwarf_cmdlist;
@@ -66,15 +67,12 @@ struct dwarf2_section_info
      Only valid if is_virtual.  */
   bfd_size_type virtual_offset;
   /* True if we have tried to read this section.  */
-  char readin;
+  bool readin;
   /* True if this is a virtual section, False otherwise.
      This specifies which of s.section and s.containing_section to use.  */
-  char is_virtual;
+  bool is_virtual;
 };
 
-typedef struct dwarf2_section_info dwarf2_section_info_def;
-DEF_VEC_O (dwarf2_section_info_def);
-
 /* Read the contents of the section INFO.
    OBJFILE is the main object file, but not necessarily the file where
    the section comes from.  E.g., for DWO files the bfd of INFO is the bfd
@@ -102,7 +100,7 @@ typedef struct die_info *die_info_ptr;
 /* Collection of data recorded per objfile.
    This hangs off of dwarf2_objfile_data_key.  */
 
-struct dwarf2_per_objfile : public allocate_on_obstack
+struct dwarf2_per_objfile
 {
   /* Construct a dwarf2_per_objfile for OBJFILE.  NAMES points to the
      dwarf2 section names, or is NULL if the standard ELF names are
@@ -166,7 +164,7 @@ public:
   dwarf2_section_info debug_names {};
   dwarf2_section_info debug_aranges {};
 
-  VEC (dwarf2_section_info_def) *types = NULL;
+  std::vector<dwarf2_section_info> types;
 
   /* Back link.  */
   struct objfile *objfile = NULL;
@@ -196,7 +194,7 @@ public:
 
   /* A table mapping DW_AT_dwo_name values to struct dwo_file objects.
      This is NULL if the table hasn't been allocated yet.  */
-  htab_t dwo_files {};
+  htab_up dwo_files;
 
   /* True if we've checked for whether there is a DWP file.  */
   bool dwp_checked = false;
@@ -256,7 +254,8 @@ public:
 
   /* Mapping from abstract origin DIE to concrete DIEs that reference it as
      DW_AT_abstract_origin.  */
-  std::unordered_map<die_info_ptr, std::vector<die_info_ptr>>
+  std::unordered_map<sect_offset, std::vector<sect_offset>, \
+                    gdb::hash_enum<sect_offset>> \
     abstract_to_concrete;
 };
 
@@ -403,4 +402,44 @@ struct signatured_type
 typedef struct signatured_type *sig_type_ptr;
 DEF_VEC_P (sig_type_ptr);
 
+ULONGEST read_unsigned_leb128 (bfd *, const gdb_byte *, unsigned int *);
+
+/* This represents a '.dwz' file.  */
+
+struct dwz_file
+{
+  dwz_file (gdb_bfd_ref_ptr &&bfd)
+    : dwz_bfd (std::move (bfd))
+  {
+  }
+
+  const char *filename () const
+  {
+    return bfd_get_filename (this->dwz_bfd);
+  }
+
+  /* A dwz file can only contain a few sections.  */
+  struct dwarf2_section_info abbrev {};
+  struct dwarf2_section_info info {};
+  struct dwarf2_section_info str {};
+  struct dwarf2_section_info line {};
+  struct dwarf2_section_info macro {};
+  struct dwarf2_section_info gdb_index {};
+  struct dwarf2_section_info debug_names {};
+
+  /* The dwz's BFD.  */
+  gdb_bfd_ref_ptr dwz_bfd;
+
+  /* If we loaded the index from an external file, this contains the
+     resources associated to the open file, memory mapping, etc.  */
+  std::unique_ptr<index_cache_resource> index_cache_res;
+};
+
+/* Open the separate '.dwz' debug file, if needed.  Return NULL if
+   there is no .gnu_debugaltlink section in the file.  Error if there
+   is such a section but the file cannot be found.  */
+
+extern struct dwz_file *dwarf2_get_dwz_file
+    (struct dwarf2_per_objfile *dwarf2_per_objfile);
+
 #endif /* DWARF2READ_H */