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https://github.com/AsahiLinux/u-boot
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486aef08de
With LTO enabled the U-Boot initial environment is no longer stored in an easy accessible section in env/common.o. I.e. the section name changes from build to build, its content maybe compressed and it is annotated with additional data. Drop trying to read the initial env with elf tools from the compiler specific object file in favour of adding and using a host tool with the only functionality of printing the initial env to stdout. See also: https://lore.kernel.org/all/927b122e-1f62-e790-f5ca-30bae4332c77@foss.st.com/ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
44 lines
916 B
C
44 lines
916 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2022
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* Max Krummenacher, Toradex
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*
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* Snippets taken from tools/env/fw_env.c
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*
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* This prints the list of default environment variables as currently
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* configured.
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*
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*/
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#include <stdio.h>
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/* Pull in the current config to define the default environment */
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#include <linux/kconfig.h>
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#ifndef __ASSEMBLY__
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#define __ASSEMBLY__ /* get only #defines from config.h */
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#include <config.h>
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#undef __ASSEMBLY__
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#else
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#include <config.h>
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#endif
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#define DEFAULT_ENV_INSTANCE_STATIC
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#include <generated/environment.h>
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#include <env_default.h>
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int main(void)
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{
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char *env, *nxt;
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for (env = default_environment; *env; env = nxt + 1) {
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for (nxt = env; *nxt; ++nxt) {
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if (nxt >= &default_environment[sizeof(default_environment)]) {
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fprintf(stderr, "## Error: environment not terminated\n");
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return -1;
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}
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}
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printf("%s\n", env);
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}
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return 0;
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}
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