Semihosting enables code running on an ARM target to use the
I/O facilities on the host computer. The target application must
be linked against a library that forwards operation requests by
using the SVC instruction that is trapped at the Supervisor Call
vector by the debugger. The "hosted" library version provided
with CodeSourcery's Sourcery G++ Lite for ARM EABI is one example.
This is currently available for ARM9 processors, but any ARM
variant should be able to support this with little additional work.
Tested using binaries compiled with Sourcery G++ Lite 2009q1-161
and ARM RVCT 3.0.
[dbrownell@users.sourceforge.net: doc tweaks, NEWS]
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Includes the src directory in the search path, so header files may be
migrated from:
#include "foo.h"
to
#include <module/foo.h>
which is more conducive for installation.
Alliteration aside, this should provide the final piece of the puzzle
for developers that want to get started writing a new target type.
In this way, it also seeks to complement the 'dummy' interface driver
and 'faux' NOR flash driver.
First version of interface for sharing code between ARMv6 and ARMv7a
debug modules ... now the architecture includes debug support. (Not
the same as for the trimmed-down v7m or v6m though!) This is a first
version of an interface that will let the ARM11 and Cortex-A8 support
share code, features, and bugfixes. Based on existing code from both
of those cores.
The ARM v7-AR architecture specification calls this commonality the
"Debug Programmer's Model (DPM)", which seemed to be an appropriate
acronym -- a TLA even! -- for use in our code. Made it so. :)
The initial scope of this just supports register access, and is geared
towards supporting top level "struct arm" mechanisms. Later, things
like breakpoint and watchpoint support should be included.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Moves definitions for each layer into their own file, eliminating
layering violations in the built-in TCL code. Updates src/Makefile.am
rules to include all files in the final startup.tcl input file, and
others Makefile.am rules to distribute the new files in our packages.
Separates various groups of files to be built in logical succession.
In each layer, the core module (target.c, nand.c, etc.) is built _after_
their helper modules (e.g. image.c, nand_ecc.c) but _before_ any of
their drivers (e.g. arm966e.c, mx3_nand.c).
This allows problems introduced at the bottom of the stack to result
in build failures as soon as possible, as the helpers and core should
wrap portions of them.
Generate a C struct with the data, and use that, instead of an
assembly language file. The assembly language causes issues on
Darwin and MS-Windows, which don't necessarily use GNU AS; or
if they do, don't necessarily use its ELF syntax.
It's also better in two other ways: fewer global symbols; and
the init-time size check gets optimized away at compile time.
(Unless it fails, in which case bigger chunks of the file vanish.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Load the XScale debug handler from the read-only data section
instead of from a separate file that can get lost or garbaged.
This eliminates installation and versioning issues, and also
speeds up reset handling a bit.
Plus some minor bits of cleanup related to loading that handler:
comments about just what this handler does, and check fault codes
while writing it into the mini-icache.
The only behavioral changes should be cleaner failure modes after
errors during handler loading, and being a bit faster.
NOTE: presumes GNU assembly syntax, with ".incbin"; and ELF,
because of the syntax of the ".size" directive.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
and seed it with DAP access support using the current ADIv5 code.
(With tweaks and cleanup from Øyvind and Dave.)
The ARMv7-AR architecture manual is not publicly available (even
in subset form like the ARMv7-M spec), so it's hard to distinguish
between the Cortex-A8 implementation and the ARMv7-A architecture.
The register set presumably is architectural, and so it's stored
here; it's like earlier ARMs, with small additions. Ditto the
instruction set, though Thumb2 support is used (extending Thumb
support from ARMv6 with more 32-bit instructions) and there's this
ThumbEE thing too. There is a new "debug monitor" mode, not yet
fully addressed here, to support debugging in environments (like
motor control) where halting debug mode is inadvisable.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2608 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This is minimal patch to support FA526 ARMv4 compatible core.
Since it is very similar to ARM920T I tried to reuse as much
code as possible.
CPU and board configs will follow soon.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2292 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Move definition of 'struct target_type_s' into new 'target_type.h' file.
- Forward delclaration remains in target.h, with comment pointing to new file.
- Replaces #define with #include in source files.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1971 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- use continuations to break long lines of variable assignments
- makes these variables more patch-friendly and conform to style guide
git-svn-id: svn://svn.berlios.de/openocd/trunk@1970 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Move src/target/{interface,target,board,test}/ into src/tcl/
- Remove existing rules in src/Makefile.am and src/target/Makefile.am.
- Add Makefile.am handling of *.cfg and *.tcl files in top Makefile.am:
- Add dist-hook to include such files under src/tcl in the distribution.
- Add install-data-hook to install contents of '$(top_srcdir)/src/tcl/'.
- Add uninstall-hook to remove the installed script files.
- Change paths to (un)install script files in '$(pkgdatadir)/scripts'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1918 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Add libtoolize step too bootstrap script; creates ltmain.sh script.
- Add AC_PROG_LIBTOOL to configure.in to add libtool support to build.
- Change Makefile.am library rules from static (_a) to libtool (_la).
- Install libopenocd.{la,so,a} in $(libdir); update openocd link rules.
- Extend MAINTAINERCLEANFILES in top-level Makefile.am to remove ltmain.sh.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1695 b42882b7-edfa-0310-969c-e2dbd0fdcd60
already required autoconf 2.59 (circa 2006), so there is no reason to
support versions of automake older than 1.6 (circa 2002).
The first part of this patch upgrades the configure.in script:
1. Use current calling conventions for the AC_INIT and
AM_INIT_AUTOMAKE macros, bringing their usage up-to-date with
the version of autoconf already specified by AC_PREREQ.
2. Add AC_CONFIG_SRCDIR macro, required by new version of AC_INIT.
3. Automatically enable all of automake's warnings except Makefile
portability (which OpenOCD violates by using GNU make's $(wildcard)).
[[ While automake has its own -Werror option, I did not enabled it
due to existing warnings. ]]
4. Add the missing AM_PROG_C_O check, required by the build rules for
openocd.o in src/Makefile.am.
5. Adjust version number to show progress toward the next release.
6. Include a bug reporting e-mail address to direct users to this list.
This patch makes the following adjustments to the Makefile.am files:
1. Update AUTOMAKE_OPTIONS to require automake version 1.6
2. Rewrite all deprecated INCLUDES assignments as AM_CPPFLAGS
3. Clean-up all AM_CPPFLAGS declarations to be patch-friendly.
4. Remove vestigial references to $(all_includes)
5. Remove erroneous references to @CPPFLAGS@ (only use AM_CPPFLAGS)
6. Remove unused -I and -D directives in helper/, flash/, target/
git-svn-id: svn://svn.berlios.de/openocd/trunk@1591 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Added support for accessport ROM table identification, dap command.
git-svn-id: svn://svn.berlios.de/openocd/trunk@1536 b42882b7-edfa-0310-969c-e2dbd0fdcd60
from pre/post_reset event scripts. Adding the second parameter was
a mistake seen in retrospect. this gives precise control in post_reset
for *when* the post reset speed is set. The pre_reset event was
added *after* the second parameter to jtag_khz/speed
- the target implementations no longer gets involved in the reset mode
scheme. Either they reset a target into a halted mode or not.
target_process_reset()
detects if the reset halt failed or not.
- tcl target event names are now target_N_name. Mainly internal
at this early stage, but best to get the naming right now.
- added hardcoded reset modes from gdb_server.c. I don't know precisely what
these defaults should be or if it should be made configurable. Perhaps some
hardcoded defaults will do for now and it can be made configurable later.
- bugfix in cortex_m3.c for reset_run_and_xxx?
- issue syntax error upon obsolete argument in target command instead of
printing message that will surely drown in the log
git-svn-id: svn://svn.berlios.de/openocd/trunk@849 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This patch just uses the command.c interface to create tcl commands for the root level commands and avoids a bit of the "TCL" bleed into the rest of the openocd code.
Multilevel commands also supported.
git-svn-id: svn://svn.berlios.de/openocd/trunk@818 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Nicolas Pitre
Zachary T Welch
David Brownell
David Brownell
dbrownell
oharboe
zwelch
mlu
kc8apf
duane
ntfreak