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In principle, it is possible to use nolibc for only some object files in a program. In that case, the startup code in _start and _start_c is not going to be used. Add the NOLIBC_NO_RUNTIME compile time option to disable it entirely and also remove anything that depends on it. Doing this avoids warnings from modpost for UML as the _start_c code references the main function from the .init.text section while it is not inside .init itself. Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
45 lines
694 B
C
45 lines
694 B
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* auxv definitions for NOLIBC
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* Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
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*/
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/* make sure to include all global symbols */
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#include "../nolibc.h"
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#ifndef _NOLIBC_SYS_AUXV_H
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#define _NOLIBC_SYS_AUXV_H
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#ifndef NOLIBC_NO_RUNTIME
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#include "../crt.h"
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static __attribute__((unused))
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unsigned long getauxval(unsigned long type)
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{
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const unsigned long *auxv = _auxv;
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unsigned long ret;
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if (!auxv)
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return 0;
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while (1) {
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if (!auxv[0] && !auxv[1]) {
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ret = 0;
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break;
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}
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if (auxv[0] == type) {
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ret = auxv[1];
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break;
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}
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auxv += 2;
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}
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return ret;
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}
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#endif /* NOLIBC_NO_RUNTIME */
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#endif /* _NOLIBC_SYS_AUXV_H */
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