diff options
Diffstat (limited to 'gdb/regcache.h')
| -rw-r--r-- | gdb/regcache.h | 79 |
1 files changed, 74 insertions, 5 deletions
diff --git a/gdb/regcache.h b/gdb/regcache.h index 4e854d31667..da91fd69325 100644 --- a/gdb/regcache.h +++ b/gdb/regcache.h @@ -1,6 +1,7 @@ /* Cache and manage the values of registers for GDB, the GNU debugger. - Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, 2001 - Free Software Foundation, Inc. + + Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, + 2001, 2002 Free Software Foundation, Inc. This file is part of GDB. @@ -22,17 +23,68 @@ #ifndef REGCACHE_H #define REGCACHE_H +struct regcache; +struct gdbarch; + +extern struct regcache *current_regcache; + +void regcache_xfree (struct regcache *regcache); +struct cleanup *make_cleanup_regcache_xfree (struct regcache *regcache); +struct regcache *regcache_xmalloc (struct gdbarch *gdbarch); + /* Transfer a raw register [0..NUM_REGS) between core-gdb and the regcache. */ -void regcache_read (int rawnum, char *buf); -void regcache_write (int rawnum, char *buf); +void regcache_raw_read (struct regcache *regcache, int rawnum, void *buf); +void regcache_raw_write (struct regcache *regcache, int rawnum, + const void *buf); +extern void regcache_raw_read_signed (struct regcache *regcache, + int regnum, LONGEST *val); +extern void regcache_raw_read_unsigned (struct regcache *regcache, + int regnum, ULONGEST *val); + +/* Partial transfer of a raw registers. These perform read, modify, + write style operations. */ + +void regcache_raw_read_part (struct regcache *regcache, int regnum, + int offset, int len, void *buf); +void regcache_raw_write_part (struct regcache *regcache, int regnum, + int offset, int len, const void *buf); + +int regcache_valid_p (struct regcache *regcache, int regnum); + +/* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS). */ +void regcache_cooked_read (struct regcache *regcache, int rawnum, void *buf); +void regcache_cooked_write (struct regcache *regcache, int rawnum, + const void *buf); + +/* NOTE: cagney/2002-08-13: At present GDB has no reliable mechanism + for indicating when a ``cooked'' register was constructed from + invalid or unavailable ``raw'' registers. One fairly easy way of + adding such a mechanism would be for the cooked functions to return + a register valid indication. Given the possibility of such a + change, the extract functions below use a reference parameter, + rather than a function result. */ + +/* Read a register as a signed/unsigned quantity. */ +extern void regcache_cooked_read_signed (struct regcache *regcache, + int regnum, LONGEST *val); +extern void regcache_cooked_read_unsigned (struct regcache *regcache, + int regnum, ULONGEST *val); + +/* Partial transfer of a cooked register. These perform read, modify, + write style operations. */ + +void regcache_cooked_read_part (struct regcache *regcache, int regnum, + int offset, int len, void *buf); +void regcache_cooked_write_part (struct regcache *regcache, int regnum, + int offset, int len, const void *buf); /* Transfer a raw register [0..NUM_REGS) between the regcache and the target. These functions are called by the target in response to a target_fetch_registers() or target_store_registers(). */ -extern void supply_register (int regnum, char *val); +extern void supply_register (int regnum, const void *val); extern void regcache_collect (int regnum, void *buf); @@ -47,6 +99,23 @@ extern char *registers; extern signed char *register_valid; +/* Copy/duplicate the contents of a register cache. By default, the + operation is pass-through. Writes to DST and reads from SRC will + go through to the target. + + The ``cpy'' functions can not have overlapping SRC and DST buffers. + + ``no passthrough'' versions do not go through to the target. They + only transfer values already in the cache. */ + +extern struct regcache *regcache_dup (struct regcache *regcache); +extern struct regcache *regcache_dup_no_passthrough (struct regcache *regcache); +extern void regcache_cpy (struct regcache *dest, struct regcache *src); +extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src); + +extern char *deprecated_grub_regcache_for_registers (struct regcache *); +extern char *deprecated_grub_regcache_for_register_valid (struct regcache *); + extern int register_cached (int regnum); extern void set_register_cached (int regnum, int state); |