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05 April 2024, 19:05:47 UTC
Revision ae6b289a37890909fea0e4a1666e19377fa0ed2c authored by Chris Fries on 07 November 2017, 19:46:13 UTC, committed by Masahiro Yamada on 23 November 2017, 04:12:37 UTC 
kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
 
Set the clang KBUILD_CFLAGS up before including arch/ Makefiles,
so that ld-options (etc.) can work correctly.

This fixes errors with clang such as ld-options trying to CC
against your host architecture, but LD trying to link against
your target architecture.

Signed-off-by: Chris Fries <cfries@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
1 parent bf070bb
Raw File
Tip revision: ae6b289a37890909fea0e4a1666e19377fa0ed2c authored by Chris Fries on 07 November 2017, 19:46:13 UTC
kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
Tip revision: ae6b289
usercopy.c 
// SPDX-License-Identifier: GPL-2.0
#include <linux/uaccess.h>

/* out-of-line parts */

#ifndef INLINE_COPY_FROM_USER
unsigned long _copy_from_user(void *to, const void __user *from, unsigned long n)
{
	unsigned long res = n;
	might_fault();
	if (likely(access_ok(VERIFY_READ, from, n))) {
		kasan_check_write(to, n);
		res = raw_copy_from_user(to, from, n);
	}
	if (unlikely(res))
		memset(to + (n - res), 0, res);
	return res;
}
EXPORT_SYMBOL(_copy_from_user);
#endif

#ifndef INLINE_COPY_TO_USER
unsigned long _copy_to_user(void *to, const void __user *from, unsigned long n)
{
	might_fault();
	if (likely(access_ok(VERIFY_WRITE, to, n))) {
		kasan_check_read(from, n);
		n = raw_copy_to_user(to, from, n);
	}
	return n;
}
EXPORT_SYMBOL(_copy_to_user);
#endif
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