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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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30
tests/dummyflasher.c
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@@ -257,8 +257,7 @@ static void dummy_test_shutdown(struct flashrom_flashctx *flashctx,
io_mock_register(NULL);
flashrom_layout_release(flashctx->default_layout);
free(flashctx->chip);
flashrom_flash_release(flashctx);
}
void dummy_probe_and_read(void **state)
@@ -266,21 +265,22 @@ void dummy_probe_and_read(void **state)
(void) state; /* unused */
struct flashrom_programmer *flashprog = NULL;
struct flashrom_flashctx flashctx = { 0 };
struct flashrom_flashctx *flashctx = NULL;
assert_int_equal(0, flashrom_create_context(&flashctx));
dummy_test_init_and_probe(&flashctx, flashprog);
dummy_test_init_and_probe(flashctx, flashprog);
const unsigned long image_size = 16384 * KiB;
unsigned char *buf = calloc(image_size, sizeof(unsigned char));
assert_non_null(buf);
printf("Testing flashrom_image_read ...\n");
assert_int_equal(0, flashrom_image_read(&flashctx, buf, image_size));
assert_int_equal(0, flashrom_image_read(flashctx, buf, image_size));
printf("... flashrom_image_read is successful.\n");
free(buf);
dummy_test_shutdown(&flashctx, flashprog);
dummy_test_shutdown(flashctx, flashprog);
}
void dummy_probe_and_write(void **state)
@@ -288,21 +288,22 @@ void dummy_probe_and_write(void **state)
(void) state; /* unused */
struct flashrom_programmer *flashprog = NULL;
struct flashrom_flashctx flashctx = { 0 };
struct flashrom_flashctx *flashctx = NULL;
assert_int_equal(0, flashrom_create_context(&flashctx));
dummy_test_init_and_probe(&flashctx, flashprog);
dummy_test_init_and_probe(flashctx, flashprog);
const unsigned long image_size = 16384 * KiB;
uint8_t *const newcontents = malloc(image_size);
assert_non_null(newcontents);
printf("Testing flashrom_image_write ...\n");
assert_int_equal(0, flashrom_image_write(&flashctx, newcontents, image_size, NULL));
assert_int_equal(0, flashrom_image_write(flashctx, newcontents, image_size, NULL));
printf("... flashrom_image_write is successful.\n");
free(newcontents);
dummy_test_shutdown(&flashctx, flashprog);
dummy_test_shutdown(flashctx, flashprog);
}
void dummy_probe_and_erase(void **state)
@@ -310,15 +311,16 @@ void dummy_probe_and_erase(void **state)
(void) state; /* unused */
struct flashrom_programmer *flashprog = NULL;
struct flashrom_flashctx flashctx = { 0 };
struct flashrom_flashctx *flashctx = NULL;
assert_int_equal(0, flashrom_create_context(&flashctx));
dummy_test_init_and_probe(&flashctx, flashprog);
dummy_test_init_and_probe(flashctx, flashprog);
printf("Testing flashrom_flash_erase ...\n");
assert_int_equal(0, flashrom_flash_erase(&flashctx));
assert_int_equal(0, flashrom_flash_erase(flashctx));
printf("... flashrom_flash_erase is successful.\n");
dummy_test_shutdown(&flashctx, flashprog);
dummy_test_shutdown(flashctx, flashprog);
}
#else