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| author | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2011-05-06 18:46:33 +0000 |
|---|---|---|
| committer | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2011-05-06 18:46:33 +0000 |
| commit | 9c06b0b4285bf0abffaa37bda5b4bf686691d805 (patch) | |
| tree | 8dbb1651e667706adfca09deab5149071b392496 /gdb/NEWS | |
| parent | d472a4264b2208644fad65766532806e01c5fba7 (diff) | |
| download | gdb-9c06b0b4285bf0abffaa37bda5b4bf686691d805.zip gdb-9c06b0b4285bf0abffaa37bda5b4bf686691d805.tar.gz gdb-9c06b0b4285bf0abffaa37bda5b4bf686691d805.tar.bz2 | |
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
Implement support for PowerPC BookE masked watchpoints.
gdb/
* NEWS: Mention masked watchpoint support. Create "Changed commands"
section.
* breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New
method. Initialize to NULL in all existing breakpoint_ops instances.
(struct breakpoint) <hw_wp_mask>: New field.
* breakpoint.c (is_masked_watchpoint): Add prototype.
(update_watchpoint): Don't set b->val for masked watchpoints. Call
breakpoint's breakpoint_ops.works_in_software_mode if available.
(watchpoints_triggered): Handle the case of a hardware masked
watchpoint trigger.
(watchpoint_check): Likewise.
(works_in_software_mode_watchpoint): New function.
(insert_masked_watchpoint, remove_masked_watchpoint)
(resources_needed_masked_watchpoint)
(works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint)
(print_one_detail_masked_watchpoint, print_mention_masked_watchpoint)
(print_recreate_masked_watchpoint, is_masked_watchpoint): New
functions.
(masked_watchpoint_breakpoint_ops): New structure.
(watch_command_1): Check for the existence of the `mask' parameter.
Set b->ops according to the type of hardware watchpoint being created.
* ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_masked_watch_num_registers): New functions.
(_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint,
to_remove_mask_watchpoint and to_masked_watch_num_registers.
* target.c (update_current_target): Mention to_insert_mask_watchpoint,
to_remove_mask_watchpoint, and to_masked_watch_num_registers.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): New functions.
* target.h (struct target_ops) <to_insert_mask_watchpoint>,
<to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New
methods.
(target_insert_mask_watchpoint, target_remove_mask_watchpoint)
(target_masked_watch_num_registers): Add prototypes.
gdb/doc/
* gdb.texinfo (Set Watchpoints): Document mask parameter.
(PowerPC Embedded): Mention support of masked watchpoints.
Diffstat (limited to 'gdb/NEWS')
| -rw-r--r-- | gdb/NEWS | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -3,10 +3,24 @@ *** Changes since GDB 7.3 +* When natively debugging programs on PowerPC BookE processors running + a Linux kernel version 2.6.34 or later, GDB supports masked hardware + watchpoints, which specify a mask in addition to an address to watch. + The mask specifies that some bits of an address (the bits which are + reset in the mask) should be ignored when matching the address accessed + by the inferior against the watchpoint address. See the "PowerPC Embedded" + section in the user manual for more details. + * The new option --once causes GDBserver to stop listening for connections once the first connection is made. The listening port used by GDBserver will become available after that. +* Changed commands + +watch EXPRESSION mask MASK_VALUE + The watch command now supports the mask argument which allows creation + of masked watchpoints, if the current architecture supports this feature. + *** Changes in GDB 7.3 * GDB has a new command: "thread find [REGEXP]". |