From 4448fe8e4e7cc4dc5336a2d27fa6048057eaf1a6 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 5 Nov 2020 10:33:45 -0700 Subject: bootm: Allow updating the bootargs in a buffer At present we only support updating the 'bootargs' environment variable. Add another function to update a buffer instead. This will allow zimage to use this feature. Also add a lot more tests to cover various cases. Signed-off-by: Simon Glass --- include/bootm.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include') diff --git a/include/bootm.h b/include/bootm.h index 4876d7b288..8d95fb2a90 100644 --- a/include/bootm.h +++ b/include/bootm.h @@ -93,6 +93,22 @@ void arch_preboot_os(void); void board_preboot_os(void); /* + * bootm_process_cmdline() - Process fix-ups for the command line + * + * This handles: making Linux boot silently if requested ('silent_linux' envvar) + * + * @maxlen must provide enough space for the string being processed plus the + * resulting string + * + * @buf: buffer holding commandline string to adjust + * @maxlen: Maximum length of buffer at @buf (including \0) + * @flags: Flags to control what happens (see bootm_cmdline_t) + * @return 0 if OK, -ENOMEM if out of memory, -ENOSPC if the commandline is too + * long + */ +int bootm_process_cmdline(char *buf, int maxlen, int flags); + +/** * bootm_process_cmdline_env() - Process fix-ups for the command line * * Updates the 'bootargs' envvar as required. This handles making Linux boot -- cgit