struct partial_symtab
{
+ /* Allocate a new partial symbol table associated with OBJFILE.
+ FILENAME (which must be non-NULL) is the filename of this partial
+ symbol table; it is copied into the appropriate storage. The
+ partial symtab will also be installed using
+ psymtab_storage::install. */
+
+ partial_symtab (const char *filename, struct objfile *objfile)
+ ATTRIBUTE_NONNULL (2) ATTRIBUTE_NONNULL (3);
+
+ /* Like the above, but also sets the initial text low and text high
+ from the ADDR argument, and sets the global- and
+ static-offsets. */
+
+ partial_symtab (const char *filename, struct objfile *objfile,
+ CORE_ADDR addr)
+ ATTRIBUTE_NONNULL (2) ATTRIBUTE_NONNULL (3);
+
+ virtual ~partial_symtab ()
+ {
+ }
+
+ /* Read the full symbol table corresponding to this partial symbol
+ table. */
+ virtual void read_symtab (struct objfile *) = 0;
+
+ /* Psymtab expansion is done in two steps. The first step is a call
+ to read_symtab; but while that is in progress, calls to
+ expand_psymtab can be made. */
+ virtual void expand_psymtab (struct objfile *) = 0;
+
+ /* Ensure that all the dependencies are read in. */
+ void read_dependencies (struct objfile *);
+
/* Return the raw low text address of this partial_symtab. */
CORE_ADDR raw_text_low () const
{
/* Return the relocated low text address of this partial_symtab. */
CORE_ADDR text_low (struct objfile *objfile) const
{
- return m_text_low + objfile->section_offsets[SECT_OFF_TEXT (objfile)];
+ return m_text_low + objfile->text_section_offset ();
}
/* Return the relocated high text address of this partial_symtab. */
CORE_ADDR text_high (struct objfile *objfile) const
{
- return m_text_high + objfile->section_offsets[SECT_OFF_TEXT (objfile)];
+ return m_text_high + objfile->text_section_offset ();
}
/* Set the low text address of this partial_symtab. */
/* Chain of all existing partial symtabs. */
- struct partial_symtab *next;
+ struct partial_symtab *next = nullptr;
/* Name of the source file which this partial_symtab defines,
or if the psymtab is anonymous then a descriptive name for
debugging purposes, or "". It must not be NULL. */
- const char *filename;
+ const char *filename = nullptr;
/* Full path of the source file. NULL if not known. */
- char *fullname;
+ char *fullname = nullptr;
/* Directory in which it was compiled, or NULL if we don't know. */
- const char *dirname;
+ const char *dirname = nullptr;
/* Range of text addresses covered by this file; texthigh is the
beginning of the next section. Do not use if PSYMTABS_ADDRMAP_SUPPORTED
text_low_valid and text_high_valid fields; these are located later
in this structure for better packing. */
- CORE_ADDR m_text_low;
- CORE_ADDR m_text_high;
+ CORE_ADDR m_text_low = 0;
+ CORE_ADDR m_text_high = 0;
/* If NULL, this is an ordinary partial symbol table.
The choice of which one should be canonical is left to the
debuginfo reader; it can be arbitrary. */
- struct partial_symtab *user;
+ struct partial_symtab *user = nullptr;
/* Array of pointers to all of the partial_symtab's which this one
depends on. Since this array can only be set to previous or
in foo.h may use type numbers defined in foo.c. For other debugging
formats there may be no need to use dependencies. */
- struct partial_symtab **dependencies;
+ struct partial_symtab **dependencies = nullptr;
- int number_of_dependencies;
+ int number_of_dependencies = 0;
/* Global symbol list. This list will be sorted after readin to
improve access. Binary search will be the usual method of
finding a symbol within it. globals_offset is an integer offset
within global_psymbols[]. */
- int globals_offset;
- int n_global_syms;
+ int globals_offset = 0;
+ int n_global_syms = 0;
/* Static symbol list. This list will *not* be sorted after readin;
to find a symbol in it, exhaustive search must be used. This is
how long errors take). This is an offset and size within
static_psymbols[]. */
- int statics_offset;
- int n_static_syms;
+ int statics_offset = 0;
+ int n_static_syms = 0;
- /* Non-zero if the symtab corresponding to this psymtab has been
- readin. This is located here so that this structure packs better
- on 64-bit systems. */
+ /* True if the symtab corresponding to this psymtab has been readin.
+ This is located here so that this structure packs better on
+ 64-bit systems. */
- unsigned char readin;
+ bool readin = false;
/* True iff objfile->psymtabs_addrmap is properly populated for this
partial_symtab. For discontiguous overlapping psymtabs is the only usable
info in PSYMTABS_ADDRMAP. */
- unsigned char psymtabs_addrmap_supported;
+ bool psymtabs_addrmap_supported = false;
/* True if the name of this partial symtab is not a source file name. */
- unsigned char anonymous;
+ bool anonymous = false;
/* A flag that is temporarily used when searching psymtabs. */
/* Pointer to compunit eventually allocated for this source file, 0 if
!readin or if we haven't looked for the symtab after it was readin. */
- struct compunit_symtab *compunit_symtab;
+ struct compunit_symtab *compunit_symtab = nullptr;
+};
+
+/* A partial_symtab that works in the historical db way. This should
+ not be used in new code, but exists to transition the somewhat
+ unmaintained "legacy" debug formats. */
+
+struct legacy_psymtab : public partial_symtab
+{
+ legacy_psymtab (const char *filename, struct objfile *objfile)
+ : partial_symtab (filename, objfile)
+ {
+ }
+
+ legacy_psymtab (const char *filename, struct objfile *objfile,
+ CORE_ADDR addr)
+ : partial_symtab (filename, objfile, addr)
+ {
+ }
+
+ void read_symtab (struct objfile *objf) override
+ {
+ if (legacy_read_symtab)
+ (*legacy_read_symtab) (this, objf);
+ }
+
+ void expand_psymtab (struct objfile *objf) override
+ {
+ (*legacy_expand_psymtab) (this, objf);
+ }
/* Pointer to function which will read in the symtab corresponding to
this psymtab. */
- void (*read_symtab) (struct partial_symtab *, struct objfile *);
+ void (*legacy_read_symtab) (legacy_psymtab *, struct objfile *) = nullptr;
+
+ /* Pointer to function which will actually expand this psymtab into
+ a full symtab. */
+
+ void (*legacy_expand_psymtab) (legacy_psymtab *, struct objfile *) = nullptr;
/* Information that lets read_symtab() locate the part of the symbol table
that this psymtab corresponds to. This information is private to the
format-dependent symbol reading routines. For further detail examine
the various symbol reading modules. */
- void *read_symtab_private;
+ void *read_symtab_private = nullptr;
};
/* Specify whether a partial psymbol should be allocated on the global
extern void init_psymbol_list (struct objfile *objfile, int total_symbols);
-extern struct partial_symtab *start_psymtab_common (struct objfile *,
- const char *, CORE_ADDR);
-
extern void end_psymtab_common (struct objfile *, struct partial_symtab *);
-/* Allocate a new partial symbol table associated with OBJFILE.
- FILENAME (which must be non-NULL) is the filename of this partial
- symbol table; it is copied into the appropriate storage. A new
- partial symbol table is returned; aside from "next" and "filename",
- its fields are initialized to zero. */
-
-extern struct partial_symtab *allocate_psymtab (const char *filename,
- struct objfile *objfile)
- ATTRIBUTE_NONNULL (1);
-
static inline void
discard_psymtab (struct objfile *objfile, struct partial_symtab *pst)
{
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