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76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* Assembler macros for SH.
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Copyright (C) 1999-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdeps/generic/sysdep.h>
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#ifdef __ASSEMBLER__
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/* Syntactic details of assembler. */
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#define ALIGNARG(log2) log2
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#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
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#ifdef SHARED
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#define PLTJMP(_x) _x##@PLT
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#else
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#define PLTJMP(_x) _x
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#endif
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/* Define an entry point visible from C. */
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#define ENTRY(name) \
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.globl C_SYMBOL_NAME(name); \
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.type C_SYMBOL_NAME(name),@function; \
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.align ALIGNARG(5); \
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C_LABEL(name) \
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cfi_startproc; \
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CALL_MCOUNT
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#undef END
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#define END(name) \
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cfi_endproc; \
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ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(name))
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/* If compiled for profiling, call `mcount' at the start of each function. */
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#ifdef PROF
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#define CALL_MCOUNT \
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mov.l 1f,r1; \
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sts.l pr,@-r15; \
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cfi_adjust_cfa_offset (4); \
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cfi_rel_offset (pr, 0); \
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mova 2f,r0; \
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jmp @r1; \
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lds r0,pr; \
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.align 2; \
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1: .long mcount; \
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2: lds.l @r15+,pr; \
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cfi_adjust_cfa_offset (-4); \
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cfi_restore (pr)
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#else
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#define CALL_MCOUNT /* Do nothing. */
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#endif
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/* Since C identifiers are not normally prefixed with an underscore
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on this system, the asm identifier `syscall_error' intrudes on the
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C name space. Make sure we use an innocuous name. */
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#define syscall_error __syscall_error
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#define mcount _mcount
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#endif /* __ASSEMBLER__ */
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