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2011-12-06 Pedro Alves <pedro@codesourcery.com>

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gdb/
	* breakpoint.c (breakpoint_restore_shadows): Rename to ...
	(breakpoint_xfer_memory): ... this.  Change prototype.  Handle
	memory writes too.
	* breakpoint.h (breakpoint_restore_shadows): Delete.
	(breakpoint_xfer_memory): Declare.
	* mem-break.c (default_memory_insert_breakpoint)
	(default_memory_remove_breakpoint): Use target_write_raw_memory.
	(memory_xfer_partial): Rename to ...
	(memory_xfer_partial_1): ... this.  Don't mask out breakpoints
	here.
	(memory_xfer_partial): New.
	(target_write_raw_memory): New.
	* target.h (target_write_raw_memory): New.

	gdb/testsuite/
	* gdb.base/break-always.exp: Test changing memory at addresses
	with breakpoints inserted.
This commit is contained in:
Pedro Alves
2011-12-06 20:03:14 +00:00
parent 31aba06f31
commit f0ba3972e9
8 changed files with 171 additions and 29 deletions
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15
gdb/breakpoint.h
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@ -1296,10 +1296,17 @@ extern int deprecated_remove_raw_breakpoint (struct gdbarch *, void *);
target. */
int watchpoints_triggered (struct target_waitstatus *);
/* Update BUF, which is LEN bytes read from the target address MEMADDR,
by replacing any memory breakpoints with their shadowed contents. */
void breakpoint_restore_shadows (gdb_byte *buf, ULONGEST memaddr,
LONGEST len);
/* Helper for transparent breakpoint hiding for memory read and write
routines.
Update one of READBUF or WRITEBUF with either the shadows
(READBUF), or the breakpoint instructions (WRITEBUF) of inserted
breakpoints at the memory range defined by MEMADDR and extending
for LEN bytes. If writing, then WRITEBUF is a copy of WRITEBUF_ORG
on entry.*/
extern void breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf,
const gdb_byte *writebuf_org,
ULONGEST memaddr, LONGEST len);
extern int breakpoints_always_inserted_mode (void);