mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
e13df08a26
env.h says this about about callback declarations (U_BOOT_ENV_CALLBACK): * For SPL these are silently dropped to reduce code size, since environment * callbacks are not supported with SPL. So env_callback_init() does a lot of work to not find anything in the guaranteed empty env_clbk list. Drop callback.o entirely from the link and stub out the only public function defined in callback.o. This cuts about 600 bytes from the SPL on my ppc build. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Simon Glass <sjg@chromium.org>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2012
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* Joe Hershberger, National Instruments, joe.hershberger@ni.com
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*/
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#ifndef __ENV_CALLBACK_H__
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#define __ENV_CALLBACK_H__
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#include <env_flags.h>
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#include <linker_lists.h>
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#include <search.h>
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#define ENV_CALLBACK_VAR ".callbacks"
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/* Board configs can define additional static callback bindings */
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#ifndef CONFIG_ENV_CALLBACK_LIST_STATIC
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#define CONFIG_ENV_CALLBACK_LIST_STATIC
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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#define SILENT_CALLBACK "silent:silent,"
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#else
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#define SILENT_CALLBACK
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#endif
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#ifdef CONFIG_SPLASHIMAGE_GUARD
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#define SPLASHIMAGE_CALLBACK "splashimage:splashimage,"
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#else
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#define SPLASHIMAGE_CALLBACK
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#endif
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#ifdef CONFIG_REGEX
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#define ENV_DOT_ESCAPE "\\"
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#else
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#define ENV_DOT_ESCAPE
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#endif
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#ifdef CONFIG_CMD_DNS
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#define DNS_CALLBACK "dnsip:dnsip,"
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#else
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#define DNS_CALLBACK
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#endif
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#ifdef CONFIG_NET
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#define NET_CALLBACKS \
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"bootfile:bootfile," \
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"ipaddr:ipaddr," \
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"gatewayip:gatewayip," \
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"netmask:netmask," \
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"serverip:serverip," \
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"nvlan:nvlan," \
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"vlan:vlan," \
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DNS_CALLBACK \
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"eth" ETHADDR_WILDCARD "addr:ethaddr,"
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#else
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#define NET_CALLBACKS
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#endif
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/*
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* This list of callback bindings is static, but may be overridden by defining
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* a new association in the ".callbacks" environment variable.
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*/
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#define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \
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ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \
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"baudrate:baudrate," \
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NET_CALLBACKS \
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"loadaddr:loadaddr," \
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SILENT_CALLBACK \
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SPLASHIMAGE_CALLBACK \
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"stdin:console,stdout:console,stderr:console," \
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"serial#:serialno," \
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CONFIG_ENV_CALLBACK_LIST_STATIC
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#ifndef CONFIG_SPL_BUILD
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void env_callback_init(struct env_entry *var_entry);
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#else
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static inline void env_callback_init(struct env_entry *var_entry)
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{
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}
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#endif
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#endif /* __ENV_CALLBACK_H__ */
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