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92e2921eea
ASM_NL is useful not only in *.S files but also in .c files for using inline assembler in C code. On ARC, however, ASM_NL is evaluated inconsistently. It is expanded to a backquote (`) in *.S files, but a semicolon (;) in *.c files because arch/arc/include/asm/linkage.h defines it inside #ifdef __ASSEMBLY__, so the definition for C code falls back to the default value defined in include/linux/linkage.h. If ASM_NL is used in inline assembler in .c files, it will result in wrong assembly code because a semicolon is not an instruction separator, but the start of a comment for ARC. Move ASM_NL (also __ALIGN and __ALIGN_STR) out of the #ifdef. Fixes:9df62f0544("arch: use ASM_NL instead of ';' for assembler new line character in the macro") Fixes:8d92e992a7("ARC: define __ALIGN_STR and __ALIGN symbols for ARC") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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*/
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#ifndef __ASM_LINKAGE_H
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#define __ASM_LINKAGE_H
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#include <asm/dwarf.h>
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#define ASM_NL ` /* use '`' to mark new line in macro */
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#define __ALIGN .align 4
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#define __ALIGN_STR __stringify(__ALIGN)
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#ifdef __ASSEMBLY__
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.macro ST2 e, o, off
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#ifdef CONFIG_ARC_HAS_LL64
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std \e, [sp, \off]
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#else
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st \e, [sp, \off]
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st \o, [sp, \off+4]
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#endif
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.endm
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.macro LD2 e, o, off
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#ifdef CONFIG_ARC_HAS_LL64
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ldd \e, [sp, \off]
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#else
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ld \e, [sp, \off]
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ld \o, [sp, \off+4]
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#endif
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.endm
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/* annotation for data we want in DCCM - if enabled in .config */
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.macro ARCFP_DATA nm
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#ifdef CONFIG_ARC_HAS_DCCM
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.section .data.arcfp
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#else
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.section .data
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#endif
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.global \nm
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.endm
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/* annotation for data we want in DCCM - if enabled in .config */
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.macro ARCFP_CODE
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#ifdef CONFIG_ARC_HAS_ICCM
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.section .text.arcfp, "ax",@progbits
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#else
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.section .text, "ax",@progbits
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#endif
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.endm
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#define ENTRY_CFI(name) \
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.globl name ASM_NL \
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ALIGN ASM_NL \
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name: ASM_NL \
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CFI_STARTPROC ASM_NL
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#define END_CFI(name) \
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CFI_ENDPROC ASM_NL \
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.size name, .-name
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#else /* !__ASSEMBLY__ */
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#ifdef CONFIG_ARC_HAS_ICCM
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#define __arcfp_code __section(".text.arcfp")
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#else
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#define __arcfp_code __section(".text")
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#endif
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#ifdef CONFIG_ARC_HAS_DCCM
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#define __arcfp_data __section(".data.arcfp")
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#else
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#define __arcfp_data __section(".data")
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#endif
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#endif /* __ASSEMBLY__ */
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#endif
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