Commit Graph

285 Commits

Author SHA1 Message Date
Øyvind Harboe
1350b6aad0 gdb_server: handle stepi/continue packet while target is running with more grace
Rather than issuing a halt and then stepi/resume, just
wait for target to halt.

Issue a sterner warning via gdb console that any gdb
register changes will be ignored in this case.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-01-21 15:57:30 +01:00
David Brownell
6f2b88448f gdb_server: correctly report flash sector sizes
Report each region of same-size sectors separately, instead of
incorrectly reporting that every sector has the same size.

This is a longstanding bug on NOR flash chips with non-uniform
sector sizes.  It was largely hidden by other bugs in flash
handling.  When some of those were recently fixed, this one was
exposed as a regression on str710.

[oyvind.harboe@zylin.com: update the loop to behave on str7 ]

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-20 10:43:32 -08:00
David Brownell
44aaba3d08 gdb_server -- subroutinize memory map logic
Put the memory map logic into its own subroutine.
This will make it a bit easier to package bugfixes,
and simplifies the query packet handling.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-19 23:32:54 -08:00
David Brownell
bf1e9a83c8 gdb_server -- symbol cleanup
Make most methods static; net minor object code shrink.
Likewise various data symbols; no net change.
Shrink some overlong lines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-19 23:30:36 -08:00
Spencer Oliver
e2d3266ff1 GDB: change gdb_breakpoint_override to COMMAND_ANY
- enable gdb_breakpoint_override to be used within config script.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-01-14 09:35:33 +00:00
David Brownell
73566405b6 NOR: add optional "flash erase_address" sector padding
Add a NOR flash mechanism where erase_address ranges can be padded
out to sector boundaries, triggering a diagnostic:

  > flash erase_address 0x0001f980 16
  address range 0x0001f980 .. 0x0001f98f is not sector-aligned
  Command handler execution failed
  in procedure 'flash' called at file "command.c", line 647
  called at file "command.c", line 361
  >

  > flash erase_address pad 0x0001f980 16
  Adding extra erase range, 0x0001f800 to 0x0001f97f
  Adding extra erase range, 0x0001f990 to 0x0001fbff
  erased address 0x0001f980 (length 16) in 0.095975s (0.163 kb/s)
  >

This addresses what would otherwise be something of a functional
regression.  An earlier version of the interface had a dangerous
problem:  it would silently erase data outside the range it was
told to erase.  Fixing that bug turned up some folk who relied on
that unsafe behavior.  (The classic problem with interface bugs!)
Now they can get that behavior again.  If they really need it,
just specify "pad".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-13 23:33:25 -08:00
Øyvind Harboe
3e33393078 gdbserver: fix typo that broke read/write watchpoint
It looks like a bugfix from normal breakpoints was not
copied over.

Do not use clever mathematics and assumptions to convert from
GDB enum for break/watchpoints to OpenOCD enum.

Drop connection upon unknown breakpoint type, this code path
was not really considered by the previous code I think.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-01-13 12:00:02 +01:00
David Brownell
8c730aaee2 Doxygen file comments
Add file comments to a few files.  Make the GDB server use
more conventional (pointer-free) hex digit conversion.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-11 00:16:57 -08:00
Øyvind Harboe
88907cc7f9 shutdown: more graceful shutdown
Shutdown is not an error condition, do not return error
from main.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-01-11 08:13:17 +01:00
David Brownell
fc9a2d0e6f src/server: usage/help/doc updates
Make "usage" messages use the same EBNF as the User's Guide;
no angle brackets.  Improve and correct various helptexts.

Specifically for the port commands, clarify that the number
is optional, and omitting it causes the current number to be
displayed.

Don't use "&function"; a function's name is its address.
Remove a couple instances of pointless whitespace; shrink a
few overlong lines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-09 00:55:41 -08:00
Øyvind Harboe
95f86e8e05 gdb: fix regression in gdb_port command
The gdb_port command can be invoked during normal execution
to report the port used for gdb, whereas it was listed as
CONFIG stage only, which caused an error when excuting
it to return the reported error.

Also in line with the grander goal of making more commands
available during all "modes" (perhaps retiring config mode),
there is no particular reason to limit gdb_port to the
config stage.

Regression was introduced in:

b3bf1d12b2 aka
v0.4.0-rc1-32-gb3bf1d1

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-01-05 15:28:23 +01:00
David Brownell
b3bf1d12b2 streamline and document helptext mode displays
Most commands are usable only at runtime; so don't bother saying
that, it's noise.  Moreover, tokens like EXEC are cryptic.  Be
more clear: highlight only the commands which may (also) be used
during the config stage, thus matching the docs more closely.
There are

 - Configuration commands (per documentation)
 - And also some commands that valid at *any* time.

Update the docs to note that "help" now shows this mode info.

This also highlighted a few mistakes in command configuration,
mostly commands listed as "valid at any time" which shouldn't
have been.  This just fixes ones I noted when sanity testing.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2010-01-02 15:52:35 -08:00
Antonio Borneo
7c5acf8660 whitespace cleanup, mostly for docs
Remove useless space/tab at end of lines.
Remove spaces in indentation and replace with tab.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-12-30 11:51:29 -08:00
David Brownell
08a890e4aa cygwin 1.7 build fixes
It's less accepting of signed char ... insisting that e.g. tolower()
not receive one as a parameter.

It's probably good to phase out such usage, given the number of bugs
that lurk in the vicinity (assumptions that char is unsigned), so fix
these even though such usage is actually legal.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-12-26 10:19:19 -08:00
Øyvind Harboe
74ce435d97 server: server loop will exhaust data inputs before sleeping
By exhausting data on input, the performance will be more
consistent + the code more clearly distinguishes between
polling and processing. A test showed gdb packet load
performance go from ~1550kByte/s to 1650kBytes/s + being
more stable.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-12-16 08:09:35 +01:00
Spencer Oliver
08589462ad server: add server_preinit which is called before config file is parsed.
This fixes the issue under native win32 of the socket interface not being
enabled (via WSAStartup) before init is called from a script.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2009-12-11 10:26:15 +00:00
Øyvind Harboe
97996214f5 gdb_server: use more local variables in inner loop of fetching packetstiny refactoring to allow optimisation of inner loops
Some profiling information for arm7 16MHz GDB load operation shows
gdb_get_packet_inner() near the very top.

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  Ts/call  Ts/call  name
 52.91      2.27     2.27                             embeddedice_write_dcc
 11.89      2.78     0.51                             gdb_get_packet_inner
  8.86      3.16     0.38                             memcpy
  3.26      3.30     0.14                             idle_thread_main(unsigned int)
  3.03      3.43     0.13                             cyg_in_cksum

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-12-11 09:17:23 +01:00
Øyvind Harboe
1c42606aea gdb_server: make struct gdb_connection private
it is only used inside gdb_server.c

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-12-11 09:17:23 +01:00
Øyvind Harboe
eb1bc657ae build: add build/src to include path
This allows including generated include files.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2009-12-08 10:16:10 +01:00
Zachary T Welch
f3e6f584f1 remove flash.h from tree
Remove the now vestigial <flash/flash.h> header from the tree,
replacing a few references with <flash/nor/core.h>
2009-12-04 16:56:24 -08:00
Zachary T Welch
d9dc604a4d remove target.h from flash.h
The flash.h header does not require the target.h header file, but
its implementation source files do.  Move it to flash/nor/imp.h.
2009-12-04 16:56:23 -08:00
Zachary T Welch
23f07d08e3 fix regressions with GDB port numbers
Use a separate variable for iterating GDB service port numbers than
the one set by the user.  Restores the behavior of returning the
original port number and only incrementing the port used on success.
2009-12-03 05:28:51 -08:00
Zachary T Welch
822c06d9e3 remove tertiary include paths
With all #include directives converted, we only need to have the
top-level src/ directory in the search path.
2009-12-03 04:24:50 -08:00
Zachary T Welch
c538a830cd change #include "server.h" to <server/server.h>
Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "server.h"

the following form should be used.

	#include <server/server.h>

The exception is from .c files in the same directory.
2009-12-03 04:24:49 -08:00
Zachary T Welch
2b2d5ec1e3 change #include "flash.h" to <flash/flash.h>
Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "flash.h"

the following form should be used.

	#include <flash/flash.h>

The exception is from .c files in the same directory.
2009-12-03 04:24:42 -08:00