/* Definitions for BFD wrappers used by GDB.
- Copyright (C) 2011, 2012
- Free Software Foundation, Inc.
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
This file is part of GDB.
DECLARE_REGISTRY (bfd);
-/* Make a copy ABFD's filename using bfd_alloc, and reassign it to the
- BFD. This ensures that the BFD's filename has the same lifetime as
- the BFD itself. */
+/* If supplied a path starting with this sequence, gdb_bfd_open will
+ open BFDs using target fileio operations. */
-void gdb_bfd_stash_filename (struct bfd *abfd);
+#define TARGET_SYSROOT_PREFIX "target:"
+
+/* Returns nonzero if NAME starts with TARGET_SYSROOT_PREFIX, zero
+ otherwise. */
+
+int is_target_filename (const char *name);
+
+/* Returns nonzero if the filename associated with ABFD starts with
+ TARGET_SYSROOT_PREFIX, zero otherwise. */
+
+int gdb_bfd_has_target_filename (struct bfd *abfd);
/* Open a read-only (FOPEN_RB) BFD given arguments like bfd_fopen.
- Returns NULL on error. On success, returns a new reference to the
- BFD, which must be freed with gdb_bfd_unref. BFDs returned by this
- call are shared among all callers opening the same file. If FD is
- not -1, then after this call it is owned by BFD. */
+ If NAME starts with TARGET_SYSROOT_PREFIX then the BFD will be
+ opened using target fileio operations if necessary. Returns NULL
+ on error. On success, returns a new reference to the BFD, which
+ must be freed with gdb_bfd_unref. BFDs returned by this call are
+ shared among all callers opening the same file. If FD is not -1,
+ then after this call it is owned by BFD. If the BFD was not
+ accessed using target fileio operations then the filename
+ associated with the BFD and accessible with bfd_get_filename will
+ not be exactly NAME but rather NAME with TARGET_SYSROOT_PREFIX
+ stripped. */
struct bfd *gdb_bfd_open (const char *name, const char *target, int fd);
void gdb_bfd_mark_parent (bfd *child, bfd *parent);
+/* Mark INCLUDEE as being included by INCLUDER.
+ This is used to associate the life time of INCLUDEE with INCLUDER.
+ For example, with Fission, one file can refer to debug info in another
+ file, and internal tables we build for the main file (INCLUDER) may refer
+ to data contained in INCLUDEE. Therefore we want to keep INCLUDEE around
+ at least as long as INCLUDER exists.
+
+ Note that this is different than gdb_bfd_mark_parent because in our case
+ lifetime tracking is based on the "parent" whereas in gdb_bfd_mark_parent
+ lifetime tracking is based on the "child". Plus in our case INCLUDEE could
+ have multiple different "parents". */
+
+void gdb_bfd_record_inclusion (bfd *includer, bfd *includee);
+
/* Try to read or map the contents of the section SECT. If
successful, the section data is returned and *SIZE is set to the
size of the section data; this may not be the same as the size
const gdb_byte *gdb_bfd_map_section (asection *section, bfd_size_type *size);
+/* Compute the CRC for ABFD. The CRC is used to find and verify
+ separate debug files. When successful, this fills in *CRC_OUT and
+ returns 1. Otherwise, this issues a warning and returns 0. */
+
+int gdb_bfd_crc (struct bfd *abfd, unsigned long *crc_out);
+
\f
/* A wrapper for bfd_fopen that initializes the gdb-specific reference
- count and calls gdb_bfd_stash_filename. */
+ count. */
bfd *gdb_bfd_fopen (const char *, const char *, const char *, int);
/* A wrapper for bfd_openr that initializes the gdb-specific reference
- count and calls gdb_bfd_stash_filename. */
+ count. */
bfd *gdb_bfd_openr (const char *, const char *);
/* A wrapper for bfd_openw that initializes the gdb-specific reference
- count and calls gdb_bfd_stash_filename. */
+ count. */
bfd *gdb_bfd_openw (const char *, const char *);
/* A wrapper for bfd_openr_iovec that initializes the gdb-specific
- reference count and calls gdb_bfd_stash_filename. */
+ reference count. */
bfd *gdb_bfd_openr_iovec (const char *filename, const char *target,
void *(*open_func) (struct bfd *nbfd,
struct stat *sb));
/* A wrapper for bfd_openr_next_archived_file that initializes the
- gdb-specific reference count and calls gdb_bfd_stash_filename. */
+ gdb-specific reference count. */
bfd *gdb_bfd_openr_next_archived_file (bfd *archive, bfd *previous);
/* A wrapper for bfd_fdopenr that initializes the gdb-specific
- reference count and calls gdb_bfd_stash_filename. */
+ reference count. */
bfd *gdb_bfd_fdopenr (const char *filename, const char *target, int fd);
+\f
+
+/* Return the index of the BFD section SECTION. Ordinarily this is
+ just the section's index, but for some special sections, like
+ bfd_com_section_ptr, it will be a synthesized value. */
+
+int gdb_bfd_section_index (bfd *abfd, asection *section);
+
+
+/* Like bfd_count_sections, but include any possible global sections,
+ like bfd_com_section_ptr. */
+
+int gdb_bfd_count_sections (bfd *abfd);
+
+/* Return true if any section requires relocations, false
+ otherwise. */
+
+int gdb_bfd_requires_relocations (bfd *abfd);
+
#endif /* GDB_BFD_H */