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Diffstat (limited to 'toolchain/uClibc/uClibc-0.9.30.3-xtensa-013-atomic.h.patch')
| -rw-r--r-- | toolchain/uClibc/uClibc-0.9.30.3-xtensa-013-atomic.h.patch | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/toolchain/uClibc/uClibc-0.9.30.3-xtensa-013-atomic.h.patch b/toolchain/uClibc/uClibc-0.9.30.3-xtensa-013-atomic.h.patch deleted file mode 100644 index fd2037111..000000000 --- a/toolchain/uClibc/uClibc-0.9.30.3-xtensa-013-atomic.h.patch +++ /dev/null @@ -1,165 +0,0 @@ ---- /dev/null 2008-09-18 06:50:54.356228028 -0700 -+++ uClibc-0.9.29/libc/sysdeps/linux/xtensa/bits/atomic.h 2008-10-04 11:40:21.000000000 -0700 -@@ -0,0 +1,162 @@ -+/* -+ * Copyright (C) 2008 Tensilica, Inc. -+ * Contributed by Joe Taylor <joe@tensilica.com> 2008 -+ * -+ * This file is subject to the terms and conditions of the GNU Lesser General -+ * Public License. See the file "COPYING.LIB" in the main directory of this -+ * archive for more details. -+ */ -+ -+#ifndef _XTENSA_BITS_ATOMIC_H -+#define _XTENSA_BITS_ATOMIC_H 1 -+ -+/* Xtensa has only a 32-bit form of a store-conditional instruction, -+ so just stub out the rest. */ -+ -+/* Atomically store NEWVAL in *MEM if *MEM is equal to OLDVAL. -+ Return the old *MEM value. */ -+ -+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %1, %2, 0 \n" \ -+ " bne %1, %4, 2f \n" \ -+ " wsr %1, SCOMPARE1 \n" \ -+ " mov %0, %1 \n" \ -+ " mov %1, %3 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ "2: \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem), "a" (newval), "a" (oldval) \ -+ : "memory" ); \ -+ __tmp; \ -+ }) -+ -+/* Atomically store NEWVAL in *MEM if *MEM is equal to OLDVAL. -+ Return zero if *MEM was changed or non-zero if no exchange happened. */ -+ -+#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %0, %2, 0 \n" \ -+ " sub %1, %4, %0 \n" \ -+ " bnez %1, 2f \n" \ -+ " wsr %0, SCOMPARE1 \n" \ -+ " mov %1, %3 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ " movi %1, 0 \n" \ -+ "2: \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem), "a" (newval), "a" (oldval) \ -+ : "memory" ); \ -+ __tmp != 0; \ -+ }) -+ -+/* Store NEWVALUE in *MEM and return the old value. */ -+ -+#define __arch_exchange_32_acq(mem, newval) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %0, %2, 0 \n" \ -+ " wsr %0, SCOMPARE1 \n" \ -+ " mov %1, %3 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem), "a" (newval) \ -+ : "memory" ); \ -+ __tmp; \ -+ }) -+ -+/* Add VALUE to *MEM and return the old value of *MEM. */ -+ -+#define __arch_atomic_exchange_and_add_32(mem, value) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %0, %2, 0 \n" \ -+ " wsr %0, SCOMPARE1 \n" \ -+ " add %1, %0, %3 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem), "a" (value) \ -+ : "memory" ); \ -+ __tmp; \ -+ }) -+ -+/* Subtract VALUE from *MEM and return the old value of *MEM. */ -+ -+#define __arch_atomic_exchange_and_sub_32(mem, value) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %0, %2, 0 \n" \ -+ " wsr %0, SCOMPARE1 \n" \ -+ " sub %1, %0, %3 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem), "a" (value) \ -+ : "memory" ); \ -+ __tmp; \ -+ }) -+ -+/* Decrement *MEM if it is > 0, and return the old value. */ -+ -+#define __arch_atomic_decrement_if_positive_32(mem) \ -+ ({__typeof__(*(mem)) __tmp, __value; \ -+ __asm__ __volatile__( \ -+ "1: l32i %0, %2, 0 \n" \ -+ " blti %0, 1, 2f \n" \ -+ " wsr %0, SCOMPARE1 \n" \ -+ " addi %1, %0, -1 \n" \ -+ " s32c1i %1, %2, 0 \n" \ -+ " bne %0, %1, 1b \n" \ -+ "2: \n" \ -+ : "=&a" (__value), "=&a" (__tmp) \ -+ : "a" (mem) \ -+ : "memory" ); \ -+ __tmp; \ -+ }) -+ -+ -+/* These are the preferred public interfaces: */ -+ -+#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ -+ ({ \ -+ if (sizeof (*mem) != 4) \ -+ abort(); \ -+ __arch_compare_and_exchange_val_32_acq(mem, newval, oldval); \ -+ }) -+ -+#define atomic_exchange_acq(mem, newval) \ -+ ({ \ -+ if (sizeof(*(mem)) != 4) \ -+ abort(); \ -+ __arch_exchange_32_acq(mem, newval); \ -+ }) -+ -+#define atomic_exchange_and_add(mem, newval) \ -+ ({ \ -+ if (sizeof(*(mem)) != 4) \ -+ abort(); \ -+ __arch_atomic_exchange_and_add_32(mem, newval); \ -+ }) -+ -+#define atomic_exchange_and_sub(mem, newval) \ -+ ({ \ -+ if (sizeof(*(mem)) != 4) \ -+ abort(); \ -+ __arch_atomic_exchange_and_sub_32(mem, newval); \ -+ }) -+ -+#define atomic_decrement_if_positive(mem) \ -+ ({ \ -+ if (sizeof(*(mem)) != 4) \ -+ abort(); \ -+ __arch_atomic_decrement_if_positive_32(mem); \ -+ }) -+ -+#endif /* _XTENSA_BITS_ATOMIC_H */ -+ |