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112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/* Copyright (C) 1997, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _LINUX_SPARC32_SYSDEP_H
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#define _LINUX_SPARC32_SYSDEP_H 1
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#include <sysdeps/unix/sparc/sysdep.h>
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#undef SYS_ify
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#define SYS_ify(syscall_name) __NR_##syscall_name
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#ifdef __ASSEMBLER__
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#ifdef DONT_LOAD_G1
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# define LOADSYSCALL(x)
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#else
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# define LOADSYSCALL(x) mov __NR_##x, %g1
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#endif
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/* Linux/SPARC uses a different trap number */
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#undef PSEUDO
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#undef ENTRY
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#undef END
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#undef LOC
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#define ENTRY(name) \
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.global C_SYMBOL_NAME(name); \
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.align 4;\
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C_LABEL(name);\
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.type name,@function;
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#define END(name) \
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.size name, . - name
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#define LOC(name) .L##name
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#ifdef PIC
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#define SYSCALL_ERROR_HANDLER \
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.global C_SYMBOL_NAME(__errno_location); \
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.type C_SYMBOL_NAME(__errno_location),@function; \
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save %sp,-96,%sp; \
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call __errno_location; \
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nop; \
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st %i0,[%o0]; \
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jmpl %i7+8,%g0; \
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restore %g0,-1,%o0;
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#else
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#define SYSCALL_ERROR_HANDLER \
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save %sp,-96,%sp; \
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call __errno_location; \
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nop; \
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st %i0,[%o0]; \
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jmpl %i7+8,%g0; \
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restore %g0,-1,%o0;
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#endif /* PIC */
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#define PSEUDO(name, syscall_name, args) \
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.text; \
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ENTRY(name); \
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LOADSYSCALL(syscall_name); \
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ta 0x10; \
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bcc,a 9000f; \
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nop; \
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SYSCALL_ERROR_HANDLER; \
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9000:;
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#else /* __ASSEMBLER__ */
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#define __SYSCALL_STRING \
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"ta 0x10;" \
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"bcs 2f;" \
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" nop;" \
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"1:" \
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".subsection 2;" \
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"2:" \
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"save %%sp, -192, %%sp;" \
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"call __errno_location;" \
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" nop;" \
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"st %%i0,[%%o0];" \
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"ba 1b;" \
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" restore %%g0, -1, %%o0;" \
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".previous;"
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#define __SYSCALL_CLOBBERS "g2", "g3", "g4", "g5", "g7", \
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"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
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"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
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"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
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"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
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"cc", "memory"
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#include <sysdeps/unix/sysv/linux/sparc/sysdep.h>
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#endif /* __ASSEMBLER__ */
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#endif /* linux/sparc/sysdep.h */
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