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libflashrom: Add flashrom_create_context to create and init context

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flashrom_create_context does create and all initialisations
needed for flash context.

The real life usage of flashrom_flash_probe_v2 discovered the issue:
error: variable 'flashctx' has initializer but incomplete type
error: storage size of 'flashctx' isn't known

flashrom_create_context fixes this, it would need to be called prior
to any other api calls that require flash context.

The patch also adds test which runs as external client for
libflashrom.
The test runs in a separate test executable, so that it does not
use flashrom source code but instead uses libflashrom as a
library.
It is also an example how to use libflashrom api.

Change-Id: I483f6cabb2b4ed27e0ee10bf621ae1bddb1fc9f3
Signed-off-by: Anastasia Klimchuk <aklm@flashrom.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/89603
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
This commit is contained in:
Anastasia Klimchuk
2025-10-16 15:25:24 +11:00
parent 666f6366c9
commit d867ef7256
13 changed files with 266 additions and 61 deletions
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14
include/libflashrom.h
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@@ -50,6 +50,19 @@ int flashrom_init(int perform_selfcheck);
* @return 0 on success
*/
int flashrom_shutdown(void);
struct flashrom_flashctx;
/**
* @brief Create flash context.
*
* @param[out] flashctx Points to a pointer of type struct flashrom_flashctx
* that will be initialised to be used for further operations. *flashctx
* has to be freed by the caller with @ref flashrom_flash_release.*
* @return 0 on success
*/
int flashrom_create_context(struct flashrom_flashctx **const flashctx);
enum flashrom_log_level {
FLASHROM_MSG_ERROR = 0,
FLASHROM_MSG_WARN = 1,
@@ -117,7 +130,6 @@ struct flashrom_progress {
void *user_data;
};
struct flashrom_flashctx;
typedef void(flashrom_progress_callback)(struct flashrom_flashctx *flashctx);
/**