diff options
| author | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-05-18 18:41:24 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2016-05-18 18:41:24 +0200 |
| commit | 6a8ccc95528f5e86a8770ed15ce89609b5b3dee9 (patch) | |
| tree | bbd4df35b4d4a6a8b00d7a5e61fb2668b850ad62 /libpthread/linuxthreads/sysdeps/mips/pt-machine.h | |
| parent | 398a27a5b323956344b4f831d892fed3bd9813c7 (diff) | |
remove linuxthreads.new, rename linuxthreads.old
Linuxthreads.new isn't really useful with the existence
of NPTL/TLS for well supported architectures. There is no
reason to use LT.new for ARM/MIPS or other architectures
supporting NPTL/TLS. It is not available for noMMU architectures
like Blackfin or FR-V. To simplify the live of the few uClibc-ng
developers, LT.new is removed and LT.old is renamed to LT.
LINUXTHREADS_OLD -> UCLIBC_HAS_LINUXTHREADS
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/mips/pt-machine.h')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/mips/pt-machine.h | 41 |
1 files changed, 29 insertions, 12 deletions
diff --git a/libpthread/linuxthreads/sysdeps/mips/pt-machine.h b/libpthread/linuxthreads/sysdeps/mips/pt-machine.h index 74e8807eb..caaf9a7c0 100644 --- a/libpthread/linuxthreads/sysdeps/mips/pt-machine.h +++ b/libpthread/linuxthreads/sysdeps/mips/pt-machine.h @@ -24,13 +24,40 @@ #define _PT_MACHINE_H 1 #include <features.h> -#include <sgidefs.h> -#include <sys/tas.h> #ifndef PT_EI # define PT_EI __extern_always_inline #endif +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Maciej W. Rozycki <macro@ds2.pg.gda.pl>, 2000. */ +static __inline__ int +__NTH (_test_and_set (int *p, int v)) +{ + int r, t; + + __asm__ __volatile__ + ("/* Inline test and set */\n" + "1:\n\t" + ".set push\n\t" + ".set mips2\n\t" + "ll %0,%3\n\t" + "move %1,%4\n\t" + "beq %0,%4,2f\n\t" + "sc %1,%2\n\t" + ".set pop\n\t" + "beqz %1,1b\n" + "2:\n\t" + "/* End test and set */" + : "=&r" (r), "=&r" (t), "=m" (*p) + : "m" (*p), "r" (v) + : "memory"); + + return r; +} + + /* Spinlock implementation; required. */ PT_EI long int @@ -58,22 +85,12 @@ __compare_and_swap (long int *p, long int oldval, long int newval) ("/* Inline compare & swap */\n" "1:\n\t" ".set push\n\t" -#if _MIPS_SIM == _ABIO32 ".set mips2\n\t" -#endif -#if _MIPS_SIM == _ABI64 - "lld %1,%5\n\t" -#else "ll %1,%5\n\t" -#endif "move %0,$0\n\t" "bne %1,%3,2f\n\t" "move %0,%4\n\t" -#if _MIPS_SIM == _ABI64 - "scd %0,%2\n\t" -#else "sc %0,%2\n\t" -#endif ".set pop\n\t" "beqz %0,1b\n" "2:\n\t" |