diff options
Diffstat (limited to 'gdb/target.h')
| -rw-r--r-- | gdb/target.h | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/gdb/target.h b/gdb/target.h index b804b05df43..76d53d81c1a 100644 --- a/gdb/target.h +++ b/gdb/target.h @@ -30,6 +30,7 @@ struct objfile; struct ui_file; struct mem_attrib; struct target_ops; +struct gdb_feature_set; /* This include file defines the interface between the main part of the debugger, and the part which is target-specific, or @@ -230,7 +231,12 @@ enum target_object /* Transfer auxilliary vector. */ TARGET_OBJECT_AUXV, /* StackGhost cookie. See "sparc-tdep.c". */ - TARGET_OBJECT_WCOOKIE + TARGET_OBJECT_WCOOKIE, + /* Available target-specific features, e.g. registers and coprocessors. + See "available.c". With an empty ANNEX this fetches a list of + features; with a comma-separated list of features in ANNEX this + fetches the details of the listed features. */ + TARGET_OBJECT_AVAILABLE_FEATURES /* Possible future objects: TARGET_OBJECT_FILE, TARGET_OBJECT_PROC, ... */ }; @@ -245,7 +251,10 @@ extern LONGEST target_write_partial (struct target_ops *ops, const char *annex, const gdb_byte *buf, ULONGEST offset, LONGEST len); -/* Wrappers to perform the full transfer. */ +/* Wrappers to perform a full transfer. These functions take the + same arguments as the partial versions, above, but a return + value of a positive number less than LEN implies that no more + data can be read or written. */ extern LONGEST target_read (struct target_ops *ops, enum target_object object, const char *annex, gdb_byte *buf, @@ -256,6 +265,22 @@ extern LONGEST target_write (struct target_ops *ops, const char *annex, const gdb_byte *buf, ULONGEST offset, LONGEST len); +/* Wrappers to perform a full read of unknown size. OBJECT/ANNEX will + be read using OPS. The return value will be -1 if the transfer + fails or is not supported; 0 if the object is empty; and the length + of the object otherwise. If a positive value is returned, a + sufficiently large buffer will be allocated using xmalloc and + returned in *BUF_P containing the contents of the object. + + This method should be used for objects sufficiently small to store + in a single xmalloced buffer, when no fixed bound on the object's + size is known in advance. Don't try to read TARGET_OBJECT_MEMORY + through this function. */ + +extern LONGEST target_read_whole (struct target_ops *ops, + enum target_object object, + const char *annex, gdb_byte **buf_p); + /* Wrappers to target read/write that perform memory transfers. They throw an error if the memory transfer fails. @@ -423,6 +448,13 @@ struct target_ops gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST offset, LONGEST len); + /* Describe the architecture-specific features of this target. + Returns the features found. All pointers refer either to + constants or temporary memory allocated on the provided + obstack. */ + struct gdb_feature_set *(*to_available_features) (struct target_ops *ops, + struct obstack *obstack); + int to_magic; /* Need sub-structure for target machine related rather than comm related? */ @@ -1074,6 +1106,9 @@ extern int target_stopped_data_address_p (struct target_ops *); #define target_stopped_data_address_p(CURRENT_TARGET) (1) #endif +extern struct gdb_feature_set *target_available_features (struct target_ops *, + struct obstack *); + /* This will only be defined by a target that supports catching vfork events, such as HP-UX. |