Commit graph

673 commits

Author SHA1 Message Date
Tom Rini
87a9aa604d - various fixes to the sandbox display support
- support for showing a logo without splash screen config
 - support for BMP drawing to depths other than 16bpp
 - tests for the different types of supported BMP images
 - support showing a logo when running coreboot via qemu
 -----BEGIN PGP SIGNATURE-----
 
 iGwEABECACwWIQSC4hxrSoIUVfFO0kRM6ATMmsalXAUCYcsdCQ4cYWd1c3RAZGVu
 eC5kZQAKCRBM6ATMmsalXCLhAJ9pLJE3SpQRzpm+Nu4EMbCDzZKr+wCfbxnAZ9LC
 zS1XZ6u9Se4ysDb+PYs=
 =Hf5j
 -----END PGP SIGNATURE-----

Merge tag 'video-next-20211228' of https://source.denx.de/u-boot/custodians/u-boot-video into next

- various fixes to the sandbox display support
- support for showing a logo without splash screen config
- support for BMP drawing to depths other than 16bpp
- tests for the different types of supported BMP images
- support showing a logo when running coreboot via qemu
2021-12-28 11:28:31 -05:00
Tom Rini
ba1ed5b022 Convert CONFIG_ARCH_MAP_SYSMEM to Kconfig
This converts the following to Kconfig:
   CONFIG_ARCH_MAP_SYSMEM

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-12-27 16:20:18 -05:00
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
Simon Glass
0fe5e9481e sandbox: video: Support 8bpp depth
At present sandbox only supports 16 and 32bpp depths, since those are the
easy ones with SDL.

We can support other depths by manually converting the pixel formats. Add
support for this, to enable an 8ppp (monochrome) format.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-26 23:02:19 +01:00
Tom Rini
4afab30cae Prepare v2022.01-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmHArDwACgkQFHw5/5Y0
 tyzxyAv/SjZjoEwG8nu7ptVZqTsZfm+tVwwWmQEBAA40MXy/KSccDtbUwB5GCO6f
 Uvk+qFFDbCkbGZh5VKbQusMmUoB02Xu9zUoSxKxcXL4WfC6Bg5GV/UWN9s8G3Tm6
 4wcP0l8WFcQjjr89UfXugiZH58psvFu6PBbWVY4rMH9gZ5ds0AkNOF0L+HbdVmMR
 a5HBfrcySRY2kiTQuKF+RVlMW6BtaOqJp/XIyy8w6bH09ykMomj/u7z3JP3y9ZzL
 w3FXqCLlIEnvdDcqfWvfjoJ/gm0WcLulgSVpTFGS0jgJpnbeAURtZcuVgj6aPRUW
 FRon+u0tj3wpFjibs2cpyXWd+gw/bLLFpDXx78AUAPjxG31tEKbnR1j8R8wBZJ0B
 TqWZ3pCne/LPOT90y2KW2z6ty2n/yEn6qEFFT9MN9R4L0N+U0er//sYJC/nn/e6u
 fjvQ9OPLbnAfHVrad3ZeIkePrLOIF6XYwNQpsjt9aE2kU9IvV5sTa8TxZuQgasBU
 A46FgXtC
 =MEG2
 -----END PGP SIGNATURE-----

Merge tag 'v2022.01-rc4' into next

Prepare v2022.01-rc4
2021-12-20 17:12:04 -05:00
Simon Glass
42b7f4212a efi: Add uclass for devices provided by UEFI firmware
UCLASS_EFI_LOADER is used for devices created by applications and
drivers loaded by U-Boots UEFI implementation.

This patch provides a new uclass (UCLASS_EFI_MEDIA) to be used for devices
that provided by a UEFI firmware calling U-Boot as an EFI application.

If the two uclasses can be unified, is left to future redesign.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-12-09 11:43:25 -08:00
Simon Glass
5ae2578a55 Convert CONFIG_SYS_FDT_LOAD_ADDR to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_FDT_LOAD_ADDR

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-05 09:23:15 -07:00
Heinrich Schuchardt
34bee10e00 sandbox: replace putchar(ch) by fputc(ch, stdout)
When compiled with -Og for better debugability u-boot ends up in a stack
overflow using

    gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0
    GNU Binutils for Ubuntu 2.37

putchar(ch) is defined as a macro which ends up calling U-Boot's putc()
implementation instead of the glibc one, which calls os_putc() ...

Let's use fputc(ch, stdout) instead as fputc() does not exist in U-Boot.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-12-02 09:15:43 -07:00
Tom Rini
2402c93130 Prepare v2022.01-rc3
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmGk/4sACgkQFHw5/5Y0
 tyyjtgwAo0jCRa1Vyc5z2RrINGdARoPhNcCnBNMYEVTjH9uP0/Mzlpo4i1IWX5qP
 nEuVmP01KjtWDRNy7Cpr45/j2PkTZ0THqXGZKpTG/yALdUKZw0wbzeh/CMllWh0A
 9yJfMbv2/IV79rbb6osxItjusSr5PnrU5fHsR+zUfC8NRZpzWGfpH8a6NpfGvGYo
 3OUKNJrGv930C3MqVnUEHPIuz+vL9fWLSs/rK/JHVZt+ALU45uYtz4cKycMoElVd
 IUJe3mhKhw0k8dO8R+p3UAEFrP+LZdcBLgCt8wRQK6Yl4lcxYOtZgYuJuM9Kp20s
 abqIuky3TWwFjpNM60Gmo63Yf967jOeI/lfITq2juZ5TBlNKOO6Z/NRVUsHkNKFG
 7qJC14/NxuSdN4u9s2h+rJBBGYc+BzWVO/ikigHnsCeFQYfafJpGTnPSJr55OU5X
 eeB6l3blx6jwxOPAz0JhLecZb4e027R+eKionirMEnVPENtnJjF1d+CulkekahUO
 LvdqKaBE
 =h4j5
 -----END PGP SIGNATURE-----

Merge tag 'v2022.01-rc3' into next

Prepare v2022.01-rc3

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-11-29 12:00:57 -05:00
Simon Glass
fb933d070e dm: core: Add tests for stringlist functions
These functions currently lack tests so add some. The error handling
differs betwee livetree and flattree at present, so only check the error
codes with livetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-11-28 16:51:51 -07:00
Simon Glass
a0ff280a89 sandbox: Support unmapping a file
Add the opposite of mapping, so that we can unmap and avoid running out of
address space.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-11-28 16:51:51 -07:00
Heinrich Schuchardt
7a001e0f3d sandbox: poweroff in efi_system_reset()
efi_system_reset() should exit if called with EFI_RESET_SHUTDOWN.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-11-26 21:30:59 +01:00
Tom Rini
286a1595fb sandbox: Migrate ARCH_MAP_SYSMEM to Kconfig
Move this from a hard-coded define in config.mk to Kconfig.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-31 12:26:44 -06:00
Mark Kettenis
fb57462437 test: Add tests for IOMMU uclass
Add a set of tests for the IOMMU uclass.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-31 08:46:44 -04:00
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
Heinrich Schuchardt
737fd142de sandbox: provide /chosen/boot-hartid property
On RISC-V the sandbox must provide the /chosen/boot-hartid in the
devicetree.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-10-21 12:50:48 -06:00
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
Heinrich Schuchardt
8ae8da10b3 sandbox: correct cpu nodes
The cpu nodes in arch/sandbox/dts/test.dts should conform to the devicetree
specification:

* property device_type must be set to "cpu"
* the reg property must be provided
* the cpu nodes must have an address

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
48609d0789 dm: gpio: Add of-platdata support
Add support for accessing GPIOs using of-plata. This uses the same
mechanism as for clocks, but allows use of the xlate() method so that
the driver can interpret the parameters.

Update the condition for GPIO_HOG so that it is not built into SPL,
since it needs SPL_OF_REAL which is not enabled in sandbox_spl.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
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
Simon Glass
7de8bd03c3 treewide: fdt: Move fdt_get_config_... to ofnode_conf_read...
The current API is outdated as it requires a devicetree pointer.

Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.

Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-25 09:46:15 -06:00
Simon Glass
b9274095c2 sandbox: Add a way to map a file into memory
It is useful to map a file into memory so that it can be accessed using
simple pointers. Add a function to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-16 13:19:25 -04:00
Simon Glass
b4467fae06 sandbox: Add a way to find the size of a file
Add a function to return the size of a file. This is useful in situations
where we need to allocate memory for it before reading it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2021-09-16 13:19:25 -04:00
Simon Glass
7dcc2f7e7a sandbox: Add license headers to the dts files
Many of these files are missing a header. Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-16 13:19:25 -04:00
Simon Glass
130401e017 sandbox: Correct handling of --rm_memory
This option has no argument so we should not trip to skip one.

Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-09-16 13:19:25 -04:00
Tom Rini
e2e5eec6ce Merge branch 'next' of https://gitlab.denx.de/u-boot/custodians/u-boot-marvell into next
- Handling all DM watchdogs in watchdog_reset() (Rasmus)
2021-08-31 19:11:15 -04:00
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
Rasmus Villemoes
4171c57472 sandbox: add test of wdt-uclass' watchdog_reset()
Check that the watchdog_reset() implementation in wdt-uclass behaves
as expected:

- resets all activated watchdog devices
- leaves unactivated/stopped devices alone
- that the rate-limiting works, with a per-device threshold

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-08-31 12:04:03 +02:00
Rasmus Villemoes
a9346b93b4 sandbox: add test of wdt_gpio driver
It seems that no other test has claimed gpio_a:7 yet, so use that.

The only small wrinkle is modifying the existing wdt test to use
uclass_get_device_by_driver() since we now have two UCLASS_WDT
instances in play, so it's a little more robust to fetch the device by
driver and not merely uclass+index.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-08-31 12:04:03 +02:00
Nandor Han
c50b21b705 bootcount: add a new driver with syscon as backend
The driver will use a syscon regmap as backend and supports both
16 and 32 size value. The value will be stored in the CPU's endianness.

Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-08-22 11:04:52 +02:00
Simon Glass
eec44c7218 dtoc: Support widening a bool value
At present if we see 'ranges' property (with no value) we assume it is a
boolean, as per the devicetree spec.

But another node may define 'ranges' with a value, forcing us to widen it
to an int array. At present this is not supported and causes an error.

Fix this and add some test cases.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Tom Rini <trini@konsulko.com>
2021-08-01 09:05:24 -06:00
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
Nandor Han
c74675bd90 reboot-mode: read the boot mode from RTC memory
RTC devices could provide battery-backed memory that can be used for
storing the reboot mode magic value.

Add a new reboot-mode back-end that uses RTC to store the reboot-mode
magic value. The driver also supports both endianness modes.

Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-23 10:16:39 -04:00
Nandor Han
f9db2f16cb reboot-mode: read the boot mode from GPIOs status
A use case for controlling the boot mode is when the user wants
to control the device boot by pushing a button without needing to
go in user-space.

Add a new backed for reboot mode where GPIOs are used to control the
reboot-mode. The driver is able to scan a predefined list of GPIOs
and return the magic value. Having the modes associated with
the magic value generated based on the GPIO values, allows the
reboot mode uclass to select the proper mode.

Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-23 10:16:39 -04:00
Heinrich Schuchardt
fd25ca3275 sandbox: don't set SA_NODEFER in signal handler
The sandbox can handle signals. Due to a damaged global data pointer
additional exceptions in the signal handler may occur leading to an endless
loop. In this case leave the handling of the secondary exception to the
operating system.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-21 10:27:35 -06:00
Simon Glass
6b165ab2b7 sandbox: mmc: Support fixed MMC devices
Add support for reading devicetree flags for MMC devices. With this we
can distinguish between fixed and removable drives. Note that this
information is only available when the device is probed, not when it is
bound, since it is read in the of_to_plat() method. This could be changed
if needed later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-21 10:27:35 -06:00
Simon Glass
350b1d3b68 sandbox: Use hinting with the display
SDL provides a hinting feature which provides a higher-quality image
with the double-display option (-K). Enable it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-21 10:27:34 -06:00
Simon Glass
fcb7e31082 sandbox: Add work-around for SDL2 display
At present the display does not show on some machines, e.g. Ubunutu
20.04 but the reason is unknown. Add a work-around until this can be
determined.

Also include more error checking just in case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-21 10:27:34 -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
Simon Glass
9a72bea6cb sandbox: Silence coverity warning in state_read_file()
In this case the value seems save to pass to os_free(). Add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 165109)
2021-07-15 18:42:05 -04:00
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
Heinrich Schuchardt
825a9a94e1 sandbox: fix sandbox_reset()
state_uninit() and dm_uninit() are mutually exclusive:

state_uninit() prints via drivers. So it cannot be executed after
dm_uninit().

dm_uninit() requires memory. So it cannot be executed after state_uninit()
which releases all memory.

Just skip dm_uninit() when resetting the sandbox. We will wake up in a new
process and allocate new memory. So this cleanup is not required. We don't
do it in sandbox_exit() either.

This avoids a segmentation error when efi_reset_system_boottime() is
invoked by a UEFI application.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-06 10:38:03 -06:00
Heinrich Schuchardt
3beba4ad34 sandbox: ensure that state->ram_buf is in low memory
Addresses in state->ram_buf must be in the low 4 GiB of the address space.
Otherwise we cannot correctly fill SMBIOS tables. This shows up in warnings
like:

    WARNING: SMBIOS table_address overflow 7f752735e020

Ensure that state->ram_buf is initialized by the first invocation of
os_malloc().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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
Michael Walle
82a3c9ef20 net: use the same alias stem for ethernet as linux
Linux uses the prefix "ethernet" whereas u-boot uses "eth". This is from
the linux tree:

$ grep "eth[0-9].*=.*&" arch/**/*dts{,i}|wc -l
0
$ grep "ethernet[0-9].*=.*&" arch/**/*dts{,i}|wc -l
633

In u-boot device trees both prefixes are used. Until recently the only
user of the ethernet alias was the sandbox test device tree. This
changed with commit fc054d563b ("net: Introduce DSA class for Ethernet
switches"). There, the MAC addresses are inherited based on the devices
sequence IDs which is in turn given by the device tree.

Before there are more users in u-boot and both worlds will differ even
more, rename the alias prefix to "ethernet" to match the linux ones.
Also adapt the test cases and rename any old aliases in the u-boot
device trees.

Cc: David Wu <david.wu@rock-chips.com>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-06-18 11:29:17 +03:00
Heinrich Schuchardt
205b9f5100 sandbox: correct determination of the text base
os_find_text_base() assumes that first line of /proc/self/maps holds
information about the text. Hence we must call the function before calling
os_malloc() which calls mmap(0x10000000,).

Failure to do so has led to incorrect values for pc_reloc when an
exception was reported

    => exception undefined

    Illegal instruction
    pc = 0x5628d82e9d3c, pc_reloc = 0x5628c82e9d3c

as well as incorrect output of the bdinfo command

    => bdinfo
    relocaddr   = 0x0000000007858000
    reloc off   = 0x0000000010000000

Fixes: b308d9fd18 ("sandbox: Avoid using malloc() for system state")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-06-05 07:35:47 -06:00
Marek Behún
94bb891e8e sandbox: make LTO available
Make LTO available for sandbox architecture.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-05-24 14:21:30 -04:00
Marek Behún
d1f81fd015 sandbox: use sections instead of symbols for getopt array boundaries
In style of linked lists, instead of declaring symbols for boundaries
of getopt options array in the linker script, declare corresponding
sections and retrieve the boundaries via static inline functions.

Without this clang's LTO produces binary without any getopt options,
because for some reason it thinks that array is empty (start and end
symbols are at the same address).

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-24 14:21:30 -04:00
Marek Behún
958f2e57ef build: use thin archives instead of incremental linking
Currently we use incremental linking (ld -r) to link several object
files from one directory into one built-in.o object file containing the
linked code from that directory (and its subdirectories).

Linux has, some time ago, moved to thin archives instead.

Thin archives are archives (.a) that do not really contain the object
files, only references to them.

Using thin archives instead of incremental linking
- saves disk space
- apparently works better with dead code elimination
- makes things easier for LTO

The third point is the important one for us. With incremental linking
there are several options how to do LTO, and that would unnecessarily
complicate things.

We have to use the --whole-archive/--no-whole-archive linking option
instead of --start-group/--end-group, otherwise linking may fail because
of unresolved symbols, or the resulting binary will be unusable.

We also need to use the P flag for ar, otherwise final linking may fail.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-24 14:21:30 -04:00