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sandbox: Add os_jump_to_image() to run another executable

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For some tests it is useful to be able to run U-Boot again but pass on the
same memory contents. Add a function to achieve this.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2014-02-27 13:26:15 -07:00
parent b2a668b523
commit 47f5fcfb41
2 changed files with 108 additions and 0 deletions
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19
include/os.h
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@@ -253,4 +253,23 @@ int os_write_ram_buf(const char *fname);
*/
int os_read_ram_buf(const char *fname);
/**
* Jump to a new executable image
*
* This uses exec() to run a new executable image, after putting it in a
* temporary file. The same arguments and environment are passed to this
* new image, with the addition of:
*
* -j <filename> Specifies the filename the image was written to. The
* calling image may want to delete this at some point.
* -m <filename> Specifies the file containing the sandbox memory
* (ram_buf) from this image, so that the new image can
* have access to this. It also means that the original
* memory filename passed to U-Boot will be left intact.
*
* @param dest Buffer containing executable image
* @param size Size of buffer
*/
int os_jump_to_image(const void *dest, int size);
#endif