/* Shared library declarations for GDB, the GNU Debugger.
- Copyright (C) 1990-2015 Free Software Foundation, Inc.
+ Copyright (C) 1990-2018 Free Software Foundation, Inc.
This file is part of GDB.
#define SO_NAME_MAX_PATH_SIZE 512 /* FIXME: Should be dynamic */
/* For domain_enum domain. */
#include "symtab.h"
+#include "gdb_bfd.h"
-/* Forward declaration for target specific link map information. This
- struct is opaque to all but the target specific file. */
-struct lm_info;
+#define ALL_SO_LIBS(so) \
+ for (so = so_list_head; \
+ so != NULL; \
+ so = so->next)
+
+/* Base class for target-specific link map information. */
+
+struct lm_info_base
+{
+};
struct so_list
{
will be a copy of struct link_map from the user process, but
it need not be; it can be any collection of data needed to
traverse the dynamic linker's data structures. */
- struct lm_info *lm_info;
+ lm_info_base *lm_info;
/* Shared object file name, exactly as it appears in the
inferior's link map. This may be a relative path, or something
/* Record the range of addresses belonging to this shared library.
There may not be just one (e.g. if two segments are relocated
- differently); but this is only used for "info sharedlibrary". */
+ differently). This is used for "info sharedlibrary" and
+ the MI command "-file-list-shared-libraries". The latter has a format
+ that supports outputting multiple segments once the related code
+ supports them. */
CORE_ADDR addr_low, addr_high;
-
- /* Build id decoded from .note.gnu.build-id without note header. This is
- actual BUILD_ID which comes either from the remote target via qXfer
- packet or via reading target memory. Note that if there's a
- mismatch with the associated bfd then so->abfd will be cleared.
- Reading target memory should be done by following execution view
- of the binary (following program headers in the case of ELF).
- Computing address from the linking view (following ELF section
- headers) may give incorrect build-id memory address despite the
- symbols still match.
- Such an example is a prelinked vs. unprelinked i386 ELF file. */
- size_t build_idsz;
- gdb_byte *build_id;
};
struct target_so_ops
/* Target dependent code to run after child process fork. */
void (*solib_create_inferior_hook) (int from_tty);
- /* Do additional symbol handling, lookup, etc. after symbols for a
- shared object have been loaded in the usual way. This is
- called to do any system specific symbol handling that might be
- needed. */
- void (*special_symbol_handling) (void);
-
/* Construct a list of the currently loaded shared objects. This
list does not include an entry for the main executable file.
struct so_list *(*current_sos) (void);
/* Find, open, and read the symbols for the main executable. If
- FROM_TTYP dereferences to a non-zero integer, allow messages to
- be printed. This parameter is a pointer rather than an int
- because open_symbol_file_object is called via catch_errors and
- catch_errors requires a pointer argument. */
- int (*open_symbol_file_object) (void *from_ttyp);
+ FROM_TTY is non-zero, allow messages to be printed. */
+ int (*open_symbol_file_object) (int from_ttyp);
/* Determine if PC lies in the dynamic symbol resolution code of
the run time loader. */
int (*in_dynsym_resolve_code) (CORE_ADDR pc);
/* Find and open shared library binary file. */
- bfd *(*bfd_open) (char *pathname);
+ gdb_bfd_ref_ptr (*bfd_open) (const char *pathname);
/* Optional extra hook for finding and opening a solib.
If TEMP_PATHNAME is non-NULL: If the file is successfully opened a
pointer to a malloc'd and realpath'd copy of SONAME is stored there,
otherwise NULL is stored there. */
- int (*find_and_open_solib) (char *soname,
- unsigned o_flags, char **temp_pathname);
+ int (*find_and_open_solib) (const char *soname,
+ unsigned o_flags,
+ gdb::unique_xmalloc_ptr<char> *temp_pathname);
/* Hook for looking up global symbols in a library-specific way. */
- struct symbol * (*lookup_lib_global_symbol) (struct objfile *objfile,
- const char *name,
- const domain_enum domain);
+ struct block_symbol (*lookup_lib_global_symbol)
+ (struct objfile *objfile,
+ const char *name,
+ const domain_enum domain);
/* Given two so_list objects, one from the GDB thread list
and another from the list returned by current_sos, return 1
NULL, in which case no specific preprocessing is necessary
for this target. */
void (*handle_event) (void);
-
- /* Return NULL if SO does match target SO it is supposed to
- represent. Otherwise return string describing why it does not match.
- Caller has to free the string. */
- char *(*validate) (const struct so_list *so);
};
/* Free the memory associated with a (so_list *). */
void free_so (struct so_list *so);
+/* A deleter that calls free_so. */
+struct so_deleter
+{
+ void operator() (struct so_list *so) const
+ {
+ free_so (so);
+ }
+};
+
+/* A unique pointer to a so_list. */
+typedef std::unique_ptr<so_list, so_deleter> so_list_up;
+
/* Return address of first so_list entry in master shared object list. */
struct so_list *master_so_list (void);
/* Find main executable binary file. */
-extern char *exec_file_find (char *in_pathname, int *fd);
+extern gdb::unique_xmalloc_ptr<char> exec_file_find (const char *in_pathname,
+ int *fd);
/* Find shared library binary file. */
-extern char *solib_find (char *in_pathname, int *fd);
+extern gdb::unique_xmalloc_ptr<char> solib_find (const char *in_pathname,
+ int *fd);
/* Open BFD for shared library file. */
-extern bfd *solib_bfd_fopen (char *pathname, int fd);
+extern gdb_bfd_ref_ptr solib_bfd_fopen (const char *pathname, int fd);
/* Find solib binary file and open it. */
-extern bfd *solib_bfd_open (char *in_pathname);
+extern gdb_bfd_ref_ptr solib_bfd_open (const char *in_pathname);
/* FIXME: gdbarch needs to control this variable. */
extern struct target_so_ops *current_target_so_ops;
/* Handler for library-specific global symbol lookup in solib.c. */
-struct symbol *solib_global_lookup (struct objfile *objfile,
- const char *name,
- const domain_enum domain);
+struct block_symbol solib_global_lookup (struct objfile *objfile,
+ const char *name,
+ const domain_enum domain);
#endif
projects / deliverable / binutils-gdb.git / blobdiff