Commit Graph

9 Commits

Author SHA1 Message Date
Antonio Borneo
3917823187 openocd: remove NULL comparisons with checkpatch [1/2]
Patch generated automatically through the new checkpatch with
flags "--types COMPARISON_TO_NULL --fix-inplace".
This only fixes the comparisons
	if (symbol == NULL)
	if (symbol != NULL)
The case of NULL on the left side of the comparison is not tested.

Some automatic fix is incorrect and has been massaged by hands:
	-	if (*psig == NULL)
	+	if (*!psig)
changed as
	+	if (!*psig)

Change-Id: If4a1e2b4e547e223532e8e3d9da89bf9cb382ce6
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6351
Tested-by: jenkins
2021-07-24 10:38:00 +01:00
Antonio Borneo
08ee7bb982 openocd: fix simple cases of NULL comparison
There are more than 1000 NULL comparisons to be aligned to the
coding style.
For recurrent NULL comparison it's preferable using trivial
scripts in order to minimize the review effort.

Patch generated automatically with the command:
	sed -i PATTERN $(find src/ -type f)
where PATTERN is in the list:
	's/(\([a-z][a-z0-9_]*\) == NULL)/(!\1)/g'
	's/(\([a-z][a-z0-9_]*->[a-z][a-z0-9_]*\) == NULL)/(!\1)/g'
	's/(\([a-z][a-z0-9_]*\.[a-z][a-z0-9_]*\) == NULL)/(!\1)/g'

	's/(\([a-z][a-z0-9_]*\) != NULL)/(\1)/g'
	's/(\([a-z][a-z0-9_]*->[a-z][a-z0-9_]*\) != NULL)/(\1)/g'
	's/(\([a-z][a-z0-9_]*\.[a-z][a-z0-9_]*\) != NULL)/(\1)/g'

	's/(NULL == \([a-z][a-z0-9_]*\))/(!\1)/g'
	's/(NULL == \([a-z][a-z0-9_]*->[a-z][a-z0-9_]*\))/(!\1)/g'
	's/(NULL == \([a-z][a-z0-9_]*\.[a-z][a-z0-9_]*\))/(!\1)/g'

	's/(NULL != \([a-z][a-z0-9_]*\))/(\1)/g'
	's/(NULL != \([a-z][a-z0-9_]*->[a-z][a-z0-9_]*\))/(\1)/g'
	's/(NULL != \([a-z][a-z0-9_]*\.[a-z][a-z0-9_]*\))/(\1)/g'

Change-Id: Ida103e325d6d0600fb69c0b7a1557ee969db4417
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6350
Tested-by: jenkins
2021-07-24 10:37:49 +01:00
Antonio Borneo
2fe2cafe20 mem_ap: fix target arch_info type
The target mem_ap appears as an ARM target, thus it allows the
execution of ARM specific commands causing the crash of OpenOCD.
E.g. 'arm mrc ...' can be executed and segfaults.

Replace the incorrect ARM magic number with a dedicated one.
While there, remove the 'struct arm', that is now holding only the
mem_ap's dap, and replace it with a pointer to the dap.

Change-Id: I881332d3fdf8d8f8271b8711607737b052a5699b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6213
Tested-by: jenkins
2021-05-22 10:11:10 +01:00
Antonio Borneo
0f06d94336 mem_ap: allow GDB connections
The target mem_ap is a convenient way to access buses, memory and
peripherals behind an ARM AP.
The current implementation provides only access through OpenOCD
commands, because GDB remote protocol has to interact with a CPU
and has to operate on CPU states and registers.
Using GDB to access the memory is welcome, because GDB can resolve
the symbol's address from an ELF file and can nicely display the
content of complex struct and data types.

Extend mem_ap target with the bare minimal support for a remote
GDB connection, by emulating a fake basic ARM core. It means that
only a GDB that has support for ARM can be used (either 'aarch64',
'arm' or 'multiarch' GDB). This is not seen as a big limitation,
because the mem_ap target is mainly used on ARM based devices.

Add a minimalist register description for the fake CPU.
Fill the field 'debug_reason' as expected by GDB server.
Call the target halted event to reply to GDB halt requests.

For backward compatibility, don't open the GDB port by default. If
needed, it has to be specified at 'target create' or 'configure'
with the flag '-gdb-port'.

Change-Id: I5a1b7adb749746516f5d4ffc6193c47b70132364
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6034
Tested-by: jenkins
2021-04-11 21:34:30 +01:00
Antonio Borneo
99add6227f target: use proper format with uint32_t
Modify the format strings to properly handle uint32_t data types.

While there, fix prototype mismatch between header and C file of
the function armv7a_l1_d_cache_inval_virt().

Change-Id: I434bd241fa5c38e0c15d22cda2295097050067f5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5818
Tested-by: jenkins
2020-09-05 17:12:39 +01:00
Antonio Borneo
061cae171c target/mem_ap: fix two memory leaks
The target mem_ap misses the method 'deinit_target' and does not
free the memory allocated during 'target create' and 'configure'.

Add the missing method and free the allocated memory.
Issue identified with valgrind.

Change-Id: If0d0114a75dd76a8b65c2d46d96c6085fd31a09d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5700
Tested-by: jenkins
2020-06-06 18:05:08 +01:00
Antonio Borneo
48478967db mem_ap: fix format of logged addresses
The macro TARGET_ADDR_FMT, defined in helper/types.h, already
includes the prefix "0x" in front of the hexadecimal number,
being defined as:
	#define TARGET_ADDR_FMT "0x%8.8" TARGET_PRIxADDR
An additional "0x" is present in mem_ap; it prints debug messages
with a double "0x" before the address:
	Debug: 2921 34180 mem_ap.c:153 mem_ap_write_memory():
	Writing memory at physical address 0x0x5000000c; size 4;
	count 1

Remove the incorrect hexadecimal prefix.

Change-Id: I38f19ed2a2f542bd5df53e947a2604f1cbe80e08
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5222
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2019-06-12 15:15:29 +01:00
Antonio Borneo
1c6f7075f7 mem_ap: fix a potential memory leak in mem_ap_target_create()
If the function mem_ap_target_create() exits for an error, the
value of pointer mem_ap get lost, causing a memory leak.

Move the allocation of mem_ap after the check on the parameters.
While there, add a check on the value returned by calloc().

Issue highlighted by clang 7.0.0.

Change-Id: Ia2c11b14fde9694f28bf6efe01d278923db0f0d4
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4923
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
2019-02-25 21:53:59 +00:00
Matthias Welwarsky
5d458cf727 target/mem_ap: generic mem-ap target
This pseudo target allows attaching to any access point on the DAP at the
MEM-AP level and read and write addresses on the connected bus. For
example, one can create a mem_ap target on the APB-AP and read and write
registers of debug components directly. This allows many diagnostic
and other features be programmed entirely using TCL, without necessity
of adding drivers to OpenOCD.

Change-Id: I53229ffd68fb0f96fb68be15b0f3a76cc8843c8e
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/4002
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Leonard Crestez <cdleonard@gmail.com>
2018-09-10 09:37:03 +01:00