diff options
Diffstat (limited to 'toolchain/uClibc/patches/411-libpthread-avr32.patch')
| -rw-r--r-- | toolchain/uClibc/patches/411-libpthread-avr32.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/toolchain/uClibc/patches/411-libpthread-avr32.patch b/toolchain/uClibc/patches/411-libpthread-avr32.patch new file mode 100644 index 0000000000..5277677ee5 --- /dev/null +++ b/toolchain/uClibc/patches/411-libpthread-avr32.patch @@ -0,0 +1,105 @@ +Subject: [PATCH] libpthread: AVR32 support + +Implement pt-machine.h for AVR32. +--- + + libpthread/linuxthreads/sysdeps/avr32/pt-machine.h | 92 +++++++++++++++++++++ + 1 file changed, 92 insertions(+) + +Index: uClibc-0.9.28/libpthread/linuxthreads/sysdeps/avr32/pt-machine.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ uClibc-0.9.28/libpthread/linuxthreads/sysdeps/avr32/pt-machine.h 2006-02-07 17:14:47.000000000 +0100 +@@ -0,0 +1,92 @@ ++/* Machine-dependent pthreads configuration and inline functions. ++ ++ Copyright (C) 2005 Atmel Norway ++ 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; see the file COPYING.LIB. If not, ++ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, ++ Boston, MA 02111-1307, USA. */ ++ ++#ifndef _PT_MACHINE_H ++#define _PT_MACHINE_H 1 ++ ++#include <features.h> ++ ++static inline int ++_test_and_set (int *p, int v) __THROW ++{ ++ int result; ++ ++ __asm__ __volatile__( ++ "/* Inline test and set */\n" ++ "1: ssrf 5\n" ++ " ld.w %0, %2\n" ++ " tst %0, %3\n" ++ " breq 2f\n" ++ " stcond %1, %3\n" ++ " brne 1b\n" ++ "2:" ++ : "=&r"(result), "=m"(*p) ++ : "m"(*p), "r"(v) ++ : "memory", "cc"); ++ ++ return result; ++} ++ ++#ifndef PT_EI ++# define PT_EI extern inline ++#endif ++ ++extern long int testandset (int *spinlock); ++extern int __compare_and_swap (long int *p, long int oldval, long int newval); ++ ++/* Spinlock implementation; required. */ ++PT_EI long int ++testandset (int *spinlock) ++{ ++ return _test_and_set(spinlock, 1); ++} ++ ++ ++/* Get some notion of the current stack. Need not be exactly the top ++ of the stack, just something somewhere in the current frame. */ ++#define CURRENT_STACK_FRAME stack_pointer ++register char * stack_pointer __asm__ ("sp"); ++ ++/* Compare-and-swap for semaphores. */ ++ ++#define HAS_COMPARE_AND_SWAP ++PT_EI int ++__compare_and_swap(long int *p, long int oldval, long int newval) ++{ ++ long int result, tmp; ++ ++ __asm__ __volatile__( ++ "/* Inline compare and swap */\n" ++ "1: ssrf 5\n" ++ " ld.w %1, %3\n" ++ " cp.w %1, %5\n" ++ " sreq %0\n" ++ " brne 2f\n" ++ " stcond %2, %4\n" ++ " brne 1b\n" ++ "2:" ++ : "=&r"(result), "=&r"(tmp), "=m"(*p) ++ : "m"(*p), "r"(newval), "r"(oldval) ++ : "cc", "memory"); ++ ++ return result; ++} ++ ++#endif /* pt-machine.h */ |