mirror of git://sourceware.org/git/glibc.git
81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/* Assembler macro definitions. OpenRISC version.
|
|
Copyright (C) 2022-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library. If not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdeps/generic/sysdep.h>
|
|
#include <features.h>
|
|
|
|
#if defined __ASSEMBLER__ || defined REQUEST_ASSEMBLER_MACROS
|
|
|
|
/* Make use of .size directive. */
|
|
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
|
|
|
|
/* Define an entry point visible from C. */
|
|
#define ENTRY(name) \
|
|
.globl C_SYMBOL_NAME(name); \
|
|
.type C_SYMBOL_NAME(name),@function; \
|
|
.align 4; \
|
|
C_LABEL(name) \
|
|
cfi_startproc; \
|
|
CALL_MCOUNT
|
|
|
|
#undef END
|
|
#define END(name) \
|
|
cfi_endproc; \
|
|
ASM_SIZE_DIRECTIVE(name)
|
|
|
|
/* Since C identifiers are not normally prefixed with an underscore
|
|
on this system, the asm identifier `syscall_error' intrudes on the
|
|
C name space. Make sure we use an innocuous name. */
|
|
#define syscall_error __syscall_error
|
|
|
|
/* If compiled for profiling, call `mcount' at the start of each function. */
|
|
#ifdef PROF
|
|
# ifdef __PIC__
|
|
# define CALL_MCOUNT \
|
|
l.addi r1, r1, -8; \
|
|
l.sw 0(r1), r9; \
|
|
l.sw 4(r1), r3; \
|
|
l.ori r3, r9, 0; \
|
|
l.j plt(_mcount); \
|
|
l.nop; \
|
|
l.lwz r9, 0(r1); \
|
|
l.lwz r3, 4(r1); \
|
|
l.addi r1, r1, 8;
|
|
# else
|
|
# define CALL_MCOUNT \
|
|
l.addi r1, r1, -8; \
|
|
l.sw 0(r1), r9; \
|
|
l.sw 4(r1), r3; \
|
|
l.ori r3, r9, 0; \
|
|
l.movhi r15, hi(_mcount); \
|
|
l.ori r15, r15, lo(_mcount); \
|
|
l.jr r15; \
|
|
l.nop; \
|
|
l.lwz r9, 0(r1); \
|
|
l.lwz r3, 4(r1); \
|
|
l.addi r1, r1, 8;
|
|
# endif
|
|
#else
|
|
# define CALL_MCOUNT /* Do nothing. */
|
|
#endif
|
|
|
|
/* Local label name for asm code. */
|
|
#define L(name) .L##name
|
|
|
|
#endif /* __ASSEMBLER__ */
|