5059ab35f3
git-svn-id: https://svn.disconnected-by-peer.at/svn/linamh/trunk/linamh@1552 6952d904-891a-0410-993b-d76249ca496b
154 lines
6.2 KiB
Diff
154 lines
6.2 KiB
Diff
2003-09-10 Chris Demetriou <cgd@broadcom.com>
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* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: New file.
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Index: linuxthreads/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h
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--- /dev/null Wed Sep 10 15:45:19 2003
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+++ linuxthreads/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h Wed Sep 10 15:45:14 2003
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@@ -0,0 +1,145 @@
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+/* Copyright (C) 2003 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+ Contributed by Chris Demetriou of Broadcom Corporation,
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+ based on work by Guido Guenther <agx@sigxcpu.org>.
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+
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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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+
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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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+
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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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+
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+#include <sysdep.h>
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+#ifndef __ASSEMBLER__
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+# include <linuxthreads/internals.h>
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+#endif
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+#include <sys/asm.h>
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+
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+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
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+
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+#ifdef __PIC__
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+# undef PSEUDO
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+# define PSEUDO(name, syscall_name, args) \
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+ .align 2; \
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+ 99: \
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+ PTR_LA t9,__syscall_error; \
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+ /* manual cpreturn. */ \
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+ REG_L gp, STKOFF_GP(sp); \
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+ RESTORESTK ; \
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+ jr t9; \
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+ ENTRY (name) \
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+ SAVESTK ; \
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+ .cpsetup t9, STKOFF_GP, name ; \
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+ .set reorder; \
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+ SINGLE_THREAD_P(t0); \
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+ bne zero, t0, L(pseudo_cancel); \
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+ .set noreorder; \
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+ li v0, SYS_ify(syscall_name); \
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+ syscall; \
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+ .set reorder; \
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+ bne a3, zero, SYSCALL_ERROR_LABEL; \
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+ /* manual cpreturn. */ \
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+ REG_L gp, STKOFF_GP(sp); \
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+ RESTORESTK ; \
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+ ret; \
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+ L(pseudo_cancel): \
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+ REG_S ra, STKOFF_RA(sp); \
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+ PUSHARGS_##args; /* save syscall args */ \
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+ CENABLE; \
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+ REG_S v0, STKOFF_SVMSK(sp); /* save mask */ \
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+ POPARGS_##args; /* restore syscall args */ \
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+ .set noreorder; \
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+ li v0, SYS_ify (syscall_name); \
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+ syscall; \
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+ .set reorder; \
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+ REG_S v0, STKOFF_SC_V0(sp); /* save syscall result */ \
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+ REG_S a3, STKOFF_SC_ERR(sp); /* save syscall error flag */ \
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+ REG_L a0, STKOFF_SVMSK(sp); /* pass mask as arg1 */ \
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+ CDISABLE; \
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+ REG_L a3, STKOFF_SC_ERR(sp); /* restore syscall error flag */ \
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+ REG_L ra, STKOFF_RA(sp); /* restore return address */ \
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+ REG_L v0, STKOFF_SC_V0(sp); /* restore syscall result */ \
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+ bne a3, zero, SYSCALL_ERROR_LABEL; \
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+ /* manual cpreturn. */ \
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+ REG_L gp, STKOFF_GP(sp); \
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+ RESTORESTK ; \
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+ L(pseudo_end):
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+#endif
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+
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+# define PUSHARGS_0 /* nothing to do */
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+# define PUSHARGS_1 PUSHARGS_0 REG_S a0, STKOFF_A0(sp);
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+# define PUSHARGS_2 PUSHARGS_1 REG_S a1, STKOFF_A1(sp);
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+# define PUSHARGS_3 PUSHARGS_2 REG_S a2, STKOFF_A2(sp);
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+# define PUSHARGS_4 PUSHARGS_3 REG_S a3, STKOFF_A3(sp);
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+# define PUSHARGS_5 PUSHARGS_4 REG_S a4, STKOFF_A4(sp);
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+# define PUSHARGS_6 PUSHARGS_5 REG_S a5, STKOFF_A5(sp);
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+
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+# define POPARGS_0 /* nothing to do */
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+# define POPARGS_1 POPARGS_0 REG_L a0, STKOFF_A0(sp);
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+# define POPARGS_2 POPARGS_1 REG_L a1, STKOFF_A1(sp);
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+# define POPARGS_3 POPARGS_2 REG_L a2, STKOFF_A2(sp);
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+# define POPARGS_4 POPARGS_3 REG_L a3, STKOFF_A3(sp);
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+# define POPARGS_5 POPARGS_4 REG_L a4, STKOFF_A4(sp);
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+# define POPARGS_6 POPARGS_5 REG_L a5, STKOFF_A5(sp);
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+
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+/* Save an even number of slots. Should be 0 if an even number of slots
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+ are used below, or SZREG if an odd number are used. */
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+# define STK_PAD SZREG
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+
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+/* Place values that we are more likely to use later in this sequence, i.e.
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+ closer to the SP at function entry. If you do that, the are more
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+ likely to already be in your d-cache. */
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+# define STKOFF_A5 (STK_PAD)
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+# define STKOFF_A4 (STKOFF_A5 + SZREG)
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+# define STKOFF_A3 (STKOFF_A4 + SZREG)
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+# define STKOFF_A2 (STKOFF_A3 + SZREG) /* MT and more args. */
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+# define STKOFF_A1 (STKOFF_A2 + SZREG) /* MT and 2 args. */
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+# define STKOFF_A0 (STKOFF_A1 + SZREG) /* MT and 1 arg. */
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+# define STKOFF_RA (STKOFF_A0 + SZREG) /* Used if MT. */
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+# define STKOFF_SC_V0 (STKOFF_RA + SZREG) /* Used if MT. */
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+# define STKOFF_SC_ERR (STKOFF_SC_V0 + SZREG) /* Used if MT. */
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+# define STKOFF_SVMSK (STKOFF_SC_ERR + SZREG) /* Used if MT. */
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+# define STKOFF_GP (STKOFF_SVMSK + SZREG) /* Always used. */
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+
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+# define STKSPACE (STKOFF_GP + SZREG)
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+# define SAVESTK PTR_SUBU sp, STKSPACE
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+# define RESTORESTK PTR_ADDU sp, STKSPACE
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+
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+# ifdef IS_IN_libpthread
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+# define CENABLE PTR_LA t9, __pthread_enable_asynccancel; jalr t9;
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+# define CDISABLE PTR_LA t9, __pthread_disable_asynccancel; jalr t9;
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+# define __local_multiple_threads __pthread_multiple_threads
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+# else
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+# define CENABLE PTR_LA t9, __libc_enable_asynccancel; jalr t9;
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+# define CDISABLE PTR_LA t9, __libc_disable_asynccancel; jalr t9;
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+# define __local_multiple_threads __libc_multiple_threads
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+# endif
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+
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+# if !defined NOT_IN_libc
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+# define __local_multiple_threads __libc_multiple_threads
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+# else
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+# define __local_multiple_threads __pthread_multiple_threads
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+# endif
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+
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+# ifndef __ASSEMBLER__
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+extern int __local_multiple_threads attribute_hidden;
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+# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
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+# else
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+# define SINGLE_THREAD_P(reg) lw reg, __local_multiple_threads
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+#endif
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+
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+#elif !defined __ASSEMBLER__
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+
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+/* This code should never be used but we define it anyhow. */
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+# define SINGLE_THREAD_P (1)
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+
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+#endif
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