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348a625dee
For historical reasons, the primary entry routine living somewhere in the inittext section is called stext(), which is confusing, given that there is also a section marker called _stext which lives at a fixed offset in the image (either 64 or 4096 bytes, depending on whether CONFIG_EFI is enabled) Let's rename stext to primary_entry(), which is a better description and reflects the secondary_entry() routine that already exists for SMP boot. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20200326171423.3080-1-ardb@kernel.org Reviwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Linker script variables to be set after section resolution, as
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* ld.lld does not like variables assigned before SECTIONS is processed.
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*/
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#ifndef __ARM64_KERNEL_IMAGE_VARS_H
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#define __ARM64_KERNEL_IMAGE_VARS_H
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#ifndef LINKER_SCRIPT
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#error This file should only be included in vmlinux.lds.S
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#endif
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#ifdef CONFIG_EFI
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__efistub_kernel_size = _edata - _text;
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__efistub_primary_entry_offset = primary_entry - _text;
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/*
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* The EFI stub has its own symbol namespace prefixed by __efistub_, to
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* isolate it from the kernel proper. The following symbols are legally
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* accessed by the stub, so provide some aliases to make them accessible.
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* Only include data symbols here, or text symbols of functions that are
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* guaranteed to be safe when executed at another offset than they were
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* linked at. The routines below are all implemented in assembler in a
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* position independent manner
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*/
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__efistub_memcmp = __pi_memcmp;
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__efistub_memchr = __pi_memchr;
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__efistub_memcpy = __pi_memcpy;
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__efistub_memmove = __pi_memmove;
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__efistub_memset = __pi_memset;
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__efistub_strlen = __pi_strlen;
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__efistub_strnlen = __pi_strnlen;
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__efistub_strcmp = __pi_strcmp;
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__efistub_strncmp = __pi_strncmp;
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__efistub_strrchr = __pi_strrchr;
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__efistub___clean_dcache_area_poc = __pi___clean_dcache_area_poc;
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#ifdef CONFIG_KASAN
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__efistub___memcpy = __pi_memcpy;
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__efistub___memmove = __pi_memmove;
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__efistub___memset = __pi_memset;
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#endif
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__efistub__text = _text;
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__efistub__end = _end;
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__efistub__edata = _edata;
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__efistub_screen_info = screen_info;
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__efistub__ctype = _ctype;
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#endif
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#endif /* __ARM64_KERNEL_IMAGE_VARS_H */
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