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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2018 Cyril Hrubis <chrubis@suse.cz>
*/
#ifndef TST_KCONFIG_H__
#define TST_KCONFIG_H__
struct tst_kconfig_res {
char match;
char *value;
};
/**
* Reads a kernel config and parses it for values defined in kconfigs array.
*
* The path to the kernel config should be autodetected in most of the cases as
* the code looks for know locations. It can be explicitely set/overrided with
* the KCONFIG_PATH environment variable as well.
*
* The kcofings array is expected to contain strings in a format "CONFIG_FOO"
* or "CONFIG_FOO=bar". The result array has to be suitably sized to fit the
* results.
*
* @param kconfigs array of config strings to look for
* @param results array to store results to
* @param cnt size of the arrays
*
* The match in the tst_kconfig_res structure is set as follows:
*
* 'm' - config option set to m
* 'y' - config option set to y
* 'v' - config option set to other value
* 'n' - config option is not set
* 0 - config option not found
*
* In the case that match is set to 'v' the value points to a newly allocated
* string that holds the value.
*/
void tst_kconfig_read(const char *const kconfigs[],
struct tst_kconfig_res results[], size_t cnt);
/**
* Checks if required kernel configuration options are set in the kernel
* config and exits the test with TCONF if at least one is missing.
*
* The config options can be passed in two different formats, either
* "CONFIG_FOO" in which case the option has to be set in order to continue the
* test or with an explicit value "CONFIG_FOO=bar" in which case the value has
* to match.
*
* @param kconfigs NULL-terminated array of config strings needed for the testrun.
*/
void tst_kconfig_check(const char *const kconfigs[]);
#endif /* TST_KCONFIG_H__ */
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