236f2ec432
This commit does the same thing as Linux commit 33def8498fdd.
Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.
Remove the quote operator # from compiler_attributes.h __section macro.
Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
37 lines
1.6 KiB
C
37 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2013 Albert ARIBAUD <albert.u.boot@aribaud.net>
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*/
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#include <linux/compiler.h>
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/**
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* These two symbols are declared in a C file so that the linker
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* uses R_ARM_RELATIVE relocation, rather than the R_ARM_ABS32 one
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* it would use if the symbols were defined in the linker file.
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* Using only R_ARM_RELATIVE relocation ensures that references to
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* the symbols are correct after as well as before relocation.
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*
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* We need a 0-byte-size type for these symbols, and the compiler
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* does not allow defining objects of C type 'void'. Using an empty
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* struct is allowed by the compiler, but causes gcc versions 4.4 and
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* below to complain about aliasing. Therefore we use the next best
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* thing: zero-sized arrays, which are both 0-byte-size and exempt from
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* aliasing warnings.
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*/
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char __bss_start[0] __section(".__bss_start");
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char __bss_end[0] __section(".__bss_end");
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char __image_copy_start[0] __section(".__image_copy_start");
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char __image_copy_end[0] __section(".__image_copy_end");
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char __rel_dyn_start[0] __section(".__rel_dyn_start");
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char __rel_dyn_end[0] __section(".__rel_dyn_end");
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char __secure_start[0] __section(".__secure_start");
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char __secure_end[0] __section(".__secure_end");
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char __secure_stack_start[0] __section(".__secure_stack_start");
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char __secure_stack_end[0] __section(".__secure_stack_end");
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char __efi_runtime_start[0] __section(".__efi_runtime_start");
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char __efi_runtime_stop[0] __section(".__efi_runtime_stop");
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char __efi_runtime_rel_start[0] __section(".__efi_runtime_rel_start");
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char __efi_runtime_rel_stop[0] __section(".__efi_runtime_rel_stop");
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char _end[0] __section(".__end");
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