| Commit message (Collapse) | Author | Age | Files | Lines |
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getenv_ull() will parse values according to prefix:
- If it starts with 0x, it's hexadecimal
- If it's just 0, it's octal
- otherwise, it's decimal
Some variables like i.MX8M soc0.soc_uid are hexadecimal without leading
0x. Therefore add a getenv_ullx helper, so code that used to do:
uid = imx8m_uid();
can be replaced with
getenv_ullx("soc0.soc_uid", &uid);
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20240228175128.2734265-2-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The '_d' suffix was originally introduced in case we want to import
Linux struct device as a separate struct into barebox. Over time it
became clear that this won't happen, instead barebox struct device_d
is basically the same as Linux struct device. Rename the struct name
accordingly to make porting Linux code easier.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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c is used a temporary variable later on for context pushing and its
initializer is never read, so drop it.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220905095557.596891-16-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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It's a common pattern to (ba)sprintf to a string and then call setenv()
with this string. Introduce pr_setenv() as a shortcut to simplify this
pattern.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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For all files in common/ that already have a license text:
- Replace with appropriate SPDX-License-Identifier
- Remove empty comment lines around replacement
- remove comment completely if only thing remaining is name
of file without description
Reviewed-by: Roland Hieber <rhi@pengutronix.de>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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setenv(var, "") to delete var is a barebox idiosyncrasy. Previous commit
added unsetenv and changed all users of setenv(var, ""), so lets set the
behavior of setenv to what's expected: set var to the empty string.
Previously, "" was turned into NULL, which meant it wasn't possible to
set variables to the empty string from the shell. This is now possible.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When setenv complains that it can't set a device parameter, then print
which parameter it tried to set.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Since
f5d77d80f5 Allow device parameters for devices with dots in name
Devices can have dots in their name and we can still read its
device parameters. Do the same change for writing parameters so
they can be written aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Devices can have a dot in the name, so we can't expect to find the
full device name before the first dot. Currently parameters of devices
with a dot in the name are inaccessible from the shell.
Fix this by iterating over the possible device name / parameter name
combinations to find a existing combination.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Our asprintf and vasprintf have different prototypes than the glibc
functions. This causes trouble when we want to share barebox code
with userspace code. Change the prototypes for (v)asprintf to match
the glibc prototypes. Since the current (v)asprintf are convenient
to use change the existing functions to b(v)asprintf.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We now have a library function to convert a string to a boolean type.
Use it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When setting a device parameter fails not only the error code
is of interest, but also what the parameter name is, what the
device name is and whether a device was found for this name.
Add this information to the error message.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This patch corrects exporting unsigned 64-bit environment variables.
I had left out a signed off line before.
Signed-off-by: Michael Burkey <mdburkey at gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This introduces some new environment variable helpers and updates
the existing ones. Newly introduced are:
getenv_bool: read a bool variable
getenv_ul: read an unsigned long variable
getenev_uint: read an unsigned int variable
getenv_nonempty: like normal getenv, but does return NULL instead of an
empty string
All new helpers take a pointer to the value. This value is only modified
when the variable exists. This allows the following programming scheme:
unsigned int myvalue = sanedefault;
getenv_uint("myvalue", &myvalue);
So without checking the return value myvalue contains the best possible
value.
getenv_ull is updated to this scheme.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This switches environment variables to use linux list. This is easier
to read. An additional plus is that the environment variables no longer
need an initcall, so malloc is the only requirement for them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Normally errno contains a positive error value. A certain unnamed developer
mixed this up while implementing U-Boot-v2. Also, normally errno is never
set to zero by any library function.
This patch fixes this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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env_push_context only needs malloc, so initialize it earlier.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Handle value == NULL similiar to how value == '' is currently handled.
hush's builtin_getopt() seems to trigger this for OPTARG.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Ensures subsequent init functions to export environment variables during
init without having to rely on linking order being correct.
Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
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add file headers
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make more char * const, fix compiler warnings
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- Add help texts for many commands.
- Let the linker sort the command table.
- Add support for multiple argmuments in several commands
(mkdir, rmdir, rm, cat)
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- do more POSIX:
- use DIR instead of struct dirent
- use (struct dirent)->d_name instead of (struct dirent)->name
- switch to a new layout for U_BOOT_CMD:
- use C99 initializers to be able to add more fields to the
command struct
- add aliases for commands (needed mainly for help -> ? and test -> [
- This is not done for all commands yet, but the compiler will tell you ;)
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remove old saveenv, allow setenv/getenv to change device parameters
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include asm-generic in errno.h instead of all other files
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WIP
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fix off-by-one error
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move several config options to kconfig
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new env functions
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