be1e77f286
When building with LTO, the system libc's `errno` variable used in
arch/sandbox/cpu/os.c conflicts with U-Boot's `errno` (defined in
lib/errno.c) with the following error:
.../ld: errno@@GLIBC_PRIVATE: TLS definition in /lib64/libc.so.6
section .tbss mismatches non-TLS reference in
/tmp/u-boot.EQlEXz.ltrans0.ltrans.o
To avoid this conflict use different asm label for this variable when
CONFIG_SANDBOX is enabled.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
39 lines
825 B
C
39 lines
825 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2014 Samsung Electronics
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* Przemyslaw Marczak <p.marczak@samsung.com>
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*/
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#ifndef _ERRNO_H
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#define _ERRNO_H
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#include <linux/errno.h>
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#ifdef __SANDBOX__
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#define __errno_asm_label asm("__u_boot_errno")
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#else
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#define __errno_asm_label
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#endif
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extern int errno __errno_asm_label;
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#define __set_errno(val) do { errno = val; } while (0)
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/**
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* errno_str() - get description for error number
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*
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* @errno: error number (negative in case of error)
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* Return: string describing the error. If CONFIG_ERRNO_STR is not
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* defined an empty string is returned.
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*/
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#ifdef CONFIG_ERRNO_STR
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const char *errno_str(int errno);
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#else
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static const char error_message[] = "";
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static inline const char *errno_str(int errno)
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{
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return error_message;
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}
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#endif
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#endif /* _ERRNO_H */
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