| /branches/tracing/kernel/arch/amd64/include/atomic.h |
|---|
| 108,13 → 108,13 |
|---|
| #endif |
| "mov %0, %1\n" |
| "testq %1, %1\n" |
| "jnz 0b\n" /* Lightweight looping on locked spinlock */ |
| "jnz 0b\n" /* lightweight looping on locked spinlock */ |
| |
| "incq %1\n" /* now use the atomic operation */ |
| "xchgq %0, %1\n" |
| "testq %1, %1\n" |
| "jnz 0b\n" |
| : "+m" (val->count), "=r"(tmp) |
| : "+m" (val->count), "=&r" (tmp) |
| ); |
| /* |
| * Prevent critical section code from bleeding out this way up. |
| /branches/tracing/kernel/arch/amd64/Makefile.inc |
|---|
| 29,11 → 29,15 |
|---|
| ## Toolchain configuration |
| # |
| |
| ifndef CROSS_PREFIX |
| CROSS_PREFIX = /usr/local |
| endif |
| |
| BFD_NAME = elf64-x86-64 |
| BFD_ARCH = i386:x86-64 |
| BFD = binary |
| TARGET = amd64-linux-gnu |
| TOOLCHAIN_DIR = /usr/local/amd64 |
| TOOLCHAIN_DIR = $(CROSS_PREFIX)/amd64 |
| |
| FPU_NO_CFLAGS = -mno-sse -mno-sse2 |
| CMN1 = -m64 -mcmodel=kernel -mno-red-zone -fno-unwind-tables |
| /branches/tracing/kernel/arch/amd64/src/asm_utils.S |
|---|
| 98,12 → 98,12 |
|---|
| * @param MEMCPY_SRC Source address. |
| * @param MEMCPY_SIZE Number of bytes to copy. |
| * |
| * @retrun MEMCPY_SRC on success, 0 on failure. |
| * @retrun MEMCPY_DST on success, 0 on failure. |
| */ |
| memcpy: |
| memcpy_from_uspace: |
| memcpy_to_uspace: |
| movq MEMCPY_SRC, %rax |
| movq MEMCPY_DST, %rax |
| |
| movq MEMCPY_SIZE, %rcx |
| shrq $3, %rcx /* size / 8 */ |