Commit graph

253 commits

Author SHA1 Message Date
Abdellatif El Khlifi
a09852d862 arm_ffa: introduce sandbox FF-A support
Emulate Secure World's FF-A ABIs and allow testing U-Boot FF-A support

Features of the sandbox FF-A support:

- Introduce an FF-A emulator
- Introduce an FF-A device driver for FF-A comms with emulated Secure World
- Provides test methods allowing to read the status of the inspected ABIs

The sandbox FF-A emulator supports only 64-bit direct messaging.

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
2023-08-08 10:22:03 -04:00
Tom Rini
94e7cb181a Revert "Merge branch '2023-07-24-introduce-FF-A-suppport'"
This reverts commit d927d1a808, reversing
changes made to c07ad9520c.

These changes do not pass CI currently.

Signed-off-by: Tom Rini <trini@konsulko.com>
2023-07-24 19:51:05 -04:00
Abdellatif El Khlifi
32dd07ff46 arm_ffa: introduce sandbox FF-A support
Emulate Secure World's FF-A ABIs and allow testing U-Boot FF-A support

Features of the sandbox FF-A support:

- Introduce an FF-A emulator
- Introduce an FF-A device driver for FF-A comms with emulated Secure World
- Provides test methods allowing to read the status of the inspected ABIs

The sandbox FF-A emulator supports only 64-bit direct messaging.

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
2023-07-24 15:30:03 -04:00
Sergei Antonov
76e1607617 sandbox: fix a compilation error
With sandbox and sandbox64 configurations:

In file included from .../u-boot/include/test/test.h:156,
                 from .../u-boot/include/test/lib.h:9,
                 from .../u-boot/test/lib/test_crc8.c:8:
.../u-boot/arch/sandbox/include/asm/test.h: In function ‘sandbox_sdl_set_bpp’:
.../u-boot/arch/sandbox/include/asm/test.h:323:17: error: ‘ENOSYS’ undeclared (first use in this function)
  323 |         return -ENOSYS;
      |                 ^~~~~~

Per Tom Rini's suggestion:
move that function prototype over to arch/sandbox/include/asm/sdl.h
and make test/dm/video.c include <asm/sdl.h>

Cc: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-07-20 14:10:57 -06:00
Simon Glass
6a32489782 x86: Record the start and end of the tables
The ACPI tables are special in that they are passed to EFI as a separate
piece, independent of other tables.

Also they can be spread over two areas of memory, e.g. with QEMU we end
up with tables kept in high memory as well.

Add new global_data fields to hold this information and update the bdinfo
command to show the table areas.

Move the rom_table_end variable into the loop that uses it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2023-07-17 17:23:08 +08:00
Heinrich Schuchardt
ea3ee193cb axi: fix definition of axi_sandbox_get_emul()
Compiling with gcc 13 results in an error:

    drivers/axi/axi-emul-uclass.c:16:5: warning: conflicting types for
    ‘axi_sandbox_get_emul’ due to enum/integer mismatch; have
    ‘int(struct udevice *, ulong,  enum axi_size_t,  struct udevice **)’
    {aka ‘int(struct udevice *, long unsigned int,  enum axi_size_t,
    struct udevice **)’} [-Wenum-int-mismatch]
       16 | int axi_sandbox_get_emul(struct udevice *bus, ulong address,
          |     ^~~~~~~~~~~~~~~~~~~~
    In file included from drivers/axi/axi-emul-uclass.c:14:
    ./arch/sandbox/include/asm/axi.h:48:5: note: previous declaration of
    ‘axi_sandbox_get_emul’ with type ‘int(struct udevice *, ulong,  uint,
    struct udevice **)’ {aka ‘int(struct udevice *, long unsigned int,
    unsigned int,  struct udevice **)’}
       48 | int axi_sandbox_get_emul(struct udevice *bus, ulong address, uint length,
          |     ^~~~~~~~~~~~~~~~~~~~

Adjust the header definition to match the implementation.
Define the size parameter as constant.

Fixes: 9a8bcabd8a ("axi: Add AXI sandbox driver and simple emulator")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-06-01 12:32:03 -04:00
Heinrich Schuchardt
c383e85434 sandbox: correct posix_types.h define
arch/arm/include/asm/posix_types.h and
arch/sandbox/include/asm/posix_types.h should use different defines.

Add SPDX header.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-04-28 11:30:18 -06:00
Heinrich Schuchardt
9963b1f5b8 sandbox: mark sandbox_exit() as no return.
Fix a -Wimplicit-fallthrough warning in sandbox_sysreset_request().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-04-28 11:30:17 -06:00
Abdellatif El Khlifi
4b6d114d6d sandbox64: fix: return unsigned long in readq()
make readq return unsigned long

readq should return 64-bit data

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2023-04-27 17:01:14 -04:00
Simon Glass
67a3646521 sandbox: video: Fix building without SDL
This is currently broken. If SDL is not installed, SANDBOX_SDL becomes
false and build errors are generated, e.g.:

   test/dm/video.c:424: undefined reference to `sandbox_sdl_set_bpp'

Fix it by making the function return an error in this case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-04-07 17:43:36 +02:00
Tom Rini
a5faa4a9eb Prepare v2023.04-rc4
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Merge tag 'v2023.04-rc4' into next

Prepare v2023.04-rc4

Signed-off-by: Tom Rini <trini@konsulko.com>
2023-03-14 12:06:35 -04:00
Simon Glass
dd8a29040d sandbox: Tidy up RTC options
At present we enable the sandbox RTC driver for all builds. Add a separate
Kconfig option to control this, so that it can be disabled in TPL, where
it is not needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-03-02 17:45:58 -05:00
Michal Suchanek
3cbaa4e1ef sandbox: Correctly define BITS_PER_LONG
SANDBOX_BITS_PER_LONG is the number of bits in long on the sandbox
platform.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
2023-03-01 11:22:27 -07:00
Simon Glass
081bdc52c1 sandbox: Allow SPI flash bootdevs to be disabled for tests
Most tests don't want these and they can create a lot of noise. Add a way
to disable them. Use that in tests, with a flag provided to enable them
for tests that need this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23 18:11:41 -05:00
Simon Glass
f43b2df3e0 sandbox: Allow ethernet to be disabled at runtime
For bootstd tests it is seldom useful to have ethernet enabled. Add a way
to disable it, so that ethernet operations like tftpboot do nothing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-23 18:11:39 -05:00
Tom Rini
c46597155e sandbox: Finish migration to Kconfig
Stop using CONFIG_SANDBOX_ARCH and use CONFIG_SANDBOX instead. For the
SPI related defines, set them directly in Kconfig. This now empties
arch/sandbox/include/asm/config.h.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-22 10:31:48 -05:00
Heinrich Schuchardt
968eaaeaa7 test: test sandbox sound driver more rigorously
Consider unexpected values for frequency:

* negative frequency
* zero frequency
* frequency exceeding sampling frequency

As in these cases the sum of the samples is zero also check the count of
the samples.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 17:43:21 +01:00
Simon Glass
d2b22ae231 vbe: Support reading the next SPL phase via VBE
Add an SPL loader to obtain the next-phase binary from a FIT provided
by the VBE driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31 11:03:18 -04:00
Simon Glass
b2d93c6aaa sandbox: Add a way to specify the sandbox executable
At present the sandbox executable is assumed to be arg[0] but this only
works for a single jump (e.g. from SPL to U-Boot). Add a new arg to solve
this issue, along with a detailed comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31 11:02:44 -04:00
Simon Glass
830690d2ed sandbox: Generalise SPL booting
At present sandbox only supports jumping to a file, to get to the next
U-Boot phase. We want to support other methods, so update the code to
use an enum for the method. Also use the

Use board_boot_order() to set the order, so we can add more options.
Also add the MMC methods into the BOOT_DEVICE enum so that booting
from MMC can be supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-10-31 11:02:44 -04:00
Simon Glass
756c01422d sandbox: Support setting up the other FDT for testing
Provide a way to copy over the 'other' FDT when running tests. This loads
it and allocates memory for the copy, if not done already, then does the
copy.

Avoid using U-Boot's malloc() pool for these copies, at least for now,
since they are part of the test system.

Tidy up the cpu.c header files while here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:10:43 -04:00
Simon Glass
9859d89b6e sandbox: Support loading the other FDT
We need an 'other' FDT which is different from the control FDT, so we can
check that the ofnode tests correctly handle them both.

Add this to the build along with a way to read it into the sandbox state.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:09:56 -04:00
Simon Glass
73c5cb9dac sandbox: Add a function to load a relative file path
At present this implementation is specific to loading the test FDT. We
plan to load others, so create a generic function to handle this.

The path is now limited to 256 characters, to simplify the code.

When there is an empty argv[0] (which should not happen), the function now
just uses the path as is, with no prefix.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-29 16:09:56 -04:00
Simon Glass
62d638386c test: Support testing malloc() failures
It is helpful to test that out-of-memory checks work correctly in code
that calls malloc().

Add a simple way to force failure after a given number of malloc() calls.

Fix a header guard to avoid a build error on sandbox_vpl.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-09-29 16:07:58 -04:00
Simon Glass
2662b54d70 bootstd: Allow EFI bootmgr to support an invalid bootflow
For most testing we don't want this bootmeth to actually do anything. For
the one test where we do, add a test hook to obtain the correct behaviour.
This will allow us to bind the device always, rather than just doing it
for this test.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-08-12 08:17:10 -04:00
Tom Rini
36b661dc91 Merge branch 'next' 2022-07-11 14:58:57 -04:00
Andrew Scull
c527e3f52d sandbox: sdl: Add stub sandbox_sdl_remove_display()
Building the sandbox with NO_SDL=1 resulted in an undefined reference to
'sandbox_sdl_remove_display'. Resolve this by adding a stub
implementation to match the stubs of the other similar functions.

Signed-off-by: Andrew Scull <ascull@google.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-25 07:54:20 +02:00
Andrew Scull
d9962b12f2 sandbox: Add libfuzzer integration
Add an implementation of LLVMFuzzerTestOneInput() that starts the
sandbox on a secondary thread and exposes a function to synchronize the
generation of fuzzing inputs with their consumption by the sandbox.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-23 12:58:18 -04:00
Andrew Scull
001c39a196 sandbox: Decouple program entry from sandbox init
Move the program's entry point to os.c, in preparation for a separate
fuzzing entry point to be added.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-06-23 12:58:18 -04:00
Andrew Scull
0648b13269 sandbox: Rename getopt sections
Rename the sections used for defining sandbox command line options so
that they don't start with a '.'. ELF says that sections starting with a
'.' are reserved for system use, but the sandbox runs as a normal user
process so should be using user sections instead.

Clang's ASAN adds redzones to non-user sections and the extra padding
meant that the list of options was being corrupted. Naming the sections
as user sections avoids this issue as clang handles them as we intended.

Signed-off-by: Andrew Scull <ascull@google.com>
2022-06-23 12:58:18 -04:00
Tom Rini
a581eba01d spl: Remove CONFIG_SPL_BOARD_LOAD_IMAGE
This symbol has been unused in code for some time now, remove
the final references.

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-06-06 12:09:00 -04:00
Tom Rini
2df59b2bd4 Remove duplication of table_compute_checksum function
It seems like there was some merge error when first cleaning up and
sharing this function.  We have both an inline version of the function
in include/tables_csum.h and a non-inline version in lib/tables_csum.c.
Rework things so that we only have the non-inline version (due to number
of calls, we should not inline this).

Fixes: 1befb38b86 ("x86: Move table csum into separate file")
Fixes: 2b445e4d31 ("x86: Move table csum into separate header")
Cc: Alexander Graf <agraf@csgraf.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-14 15:39:15 -04:00
Sean Anderson
679190c41a test: serial: Add test for putc/puts
This adds a test to ensure that puts is equivalent to putc called in a
loop. We don't verify the contents of the message to avoid having to
record console output a second time (though that could be added in the
future). The globals are initialized to non-zero values to avoid a
warning; in particular, the character count is off-by-one (but we always
make relative measurements).

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-14 15:39:15 -04:00
Pali Rohár
f02b396548 sandbox: video: Replace PCI_CLASS_* macros by one from pci_ids.h
Replace old macros PCI_CLASS_CODE_COMM and PCI_CLASS_SUB_CODE_COMM_SERIAL
by new macros defined in pci_ids.h. Old macros would be deleted in followup
commit.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-03-25 13:35:50 -04:00
Etienne Carriere
10d3e5d20b firmware: scmi: fix sandbox and related tests for clock discovery
Updates sandbox SCMI clock driver and tests since enabling CCF will
mandate clock discovery that is all exposed SCMI clocks shall be
discovered at initialization. For this reason, sandbox SCMI clock
driver must emulate all clocks exposed by SCMI server, not only those
effectively consumed by some other U-Boot devices.

Therefore the sandbox SCMI test driver exposes 3 clocks (IDs 0, 1 and 2)
and sandbox SCMI clock consumer driver gets 2 of them.

Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-03-02 17:42:06 -05:00
Etienne Carriere
41d62e2f27 sandbox: scmi: test against a single scmi agent
As per DT bindings since Linux kernel v5.14, the device tree can define
only 1 SCMI agent node that is named scmi [1]. As a consequence, change
implementation of the SCMI driver test through sandbox architecture to
reflect that.

This change updates sandbox test DT and sandbox SCMI driver accordingly
since all these are impacted.

Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-03-02 17:42:06 -05:00
Simon Glass
aafb31fc95 acpi: Move acpi_write_tables() to a generic header
This function is used by both x86 and sandbox. Put it in a common header
file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-11 11:29:23 -05:00
Simon Glass
0679cca507 sandbox: Allow building with GENERATE_ACPI_TABLE
At present this option is missing a header file, a function prototype and
the qfw driver needs a header included.

Fix these problems so we can enable this option on sandbox. This will
increase the build coverage.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
233f0e35a3 x86: Move the acpi table to generic global_data
Allow this to be used on any arch. Also convert to using macros so that
we can check the CONFIG option in C code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Heinrich Schuchardt
185f812c41 doc: replace @return by Return:
Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19 18:11:34 +01:00
Simon Glass
8657ad43f3 sandbox: video: Add BMP tests for 32bpp and 8bpp modes
Add a few more tests for BMP rendering. Use a back door into the sandbox
SDL driver to adjust the resolution at runtime.

The truetype code does not support 8bpp. Add this so that the display is
not blank when running in this mode.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:02:19 +01:00
Simon Glass
250e735c69 video: sandbox: Avoid duplicate display windows
When unit tests are run they currently create a new window. Update the
code so that the old one is removed first. This avoids the confusion as to
which one is active.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:02:19 +01:00
Ilias Apalodimas
e7fb789612 sandbox: Remove OF_HOSTFILE
OF_HOSTFILE is used on sandbox configs only.  Although it's pretty
unique and not causing any confusions,  we are better of having simpler
config options for the DTB.

So let's replace that with the existing OF_BOARD.  U-Boot would then
have only three config options for the DTB origin.
- OF_SEPARATE, build separately from U-Boot
- OF_BOARD, board specific way of providing the DTB
- OF_EMBED embedded in the u-boot binary(should not be used in production

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-27 16:38:26 -04:00
Wolfgang Denk
0cf207ec01 WS cleanup: remove SPACE(s) followed by TAB
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-09-30 09:08:16 -04:00
Simon Glass
3e57ad907c irq: Tidy up of-platdata irq support
This function is available but not exported. More generally it does not
really work as intended.

Reimplement it and add a sandbox test too.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Tom Rini
ab92b38a01 Finish converting CONFIG_SYS_CACHELINE_SIZE to Kconfig
We move the SYS_CACHE_SHIFT_N options from arch/arm/Kconfig to
arch/Kconfig, and introduce SYS_CACHE_SHIFT_4 to provide a size of 16.
Introduce select statements for other architectures based on current
usage.  For MIPS, we take the existing arch-specific symbol and migrate
to the generic symbol.  This lets us remove a little bit of otherwise
unused code.

Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Anup Patel <anup.patel@wdc.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Leo <ycliang@andestech.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2021-08-31 17:47:49 -04:00
Simon Glass
cb8970092f sandbox: Reduce keyed autoboot delay
The autoboot tests are a recent addition to U-Boot, providing much-needed
coverage in this area.

A side effect of the keyed autoboot test is that this feature is enabled
in sandbox always. This changes the autoboot prompt and confuses the
pytests. Some tests become slower, for example the vboot tests take about
27s now instead of 3s.

We don't actually need this feature enabled to be able to run the tests.
Add a switch to allow sandbox to turn it on and off as needed. Use this
in the one test that needs it.

Add a command-line flag in case this is desired in normal use.

Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 25c8b9f298 ("test: add first autoboot unit tests")
Reviewed-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>
2021-08-01 09:05:24 -06:00
Simon Glass
f178bebf55 sandbox: Support executables for more phases
The SPL header has a function for obtaining the phase in capital letters,
e.g. 'SPL'. Add one for lower-case also, as used by sandbox.

Use this to generalise the sandbox logic for determining the filename of
the next sandbox executable. This can provide support for VPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-21 10:27:34 -06:00
Alper Nebi Yasak
e712245d08 sandbox: cros-ec: Add tests for the Chromium OS EC PWM driver
This patch adds a limited pulse-width modulator to sandbox's Chromium OS
Embedded Controller emulation. The emulated PWM device supports multiple
channels but can only set a duty cycle for each, as the actual EC
doesn't expose any functionality or information other than that. Though
the EC supports specifying the PWM channel by its type (e.g. display
backlight, keyboard backlight), this is not implemented in the emulation
as nothing in U-Boot uses this type specification.

This emulated PWM device is then used to test the Chromium OS PWM driver
in sandbox. Adding the required device node to the sandbox test
device-tree unfortunately makes it the first PWM device, so this also
touches some other tests to make sure they still use the sandbox PWM.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-06 10:38:03 -06:00
Simon Glass
85f718f64d sandbox: Support signal handling only when requested
At present if sandbox crashes it prints a message and tries to exit. But
with the recently introduced signal handler, it often seems to get stuck
in a loop until the stack overflows:

Segmentation violation

Segmentation violation

Segmentation violation

Segmentation violation

Segmentation violation

Segmentation violation

Segmentation violation
...

The signal handler is only useful for a few tests, as I understand it.
Make it optional.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-06 10:38:03 -06:00