diff options
Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/assembler/MacroAssemblerARM.cpp')
-rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/assembler/MacroAssemblerARM.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/assembler/MacroAssemblerARM.cpp b/src/3rdparty/webkit/JavaScriptCore/assembler/MacroAssemblerARM.cpp new file mode 100644 index 0000000..33fac64 --- /dev/null +++ b/src/3rdparty/webkit/JavaScriptCore/assembler/MacroAssemblerARM.cpp @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2009 University of Szeged + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" + +#if ENABLE(ASSEMBLER) && PLATFORM(ARM) && !PLATFORM_ARM_ARCH(7) + +#include "MacroAssemblerARM.h" + +#if PLATFORM(LINUX) +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <elf.h> +#include <asm/hwcap.h> +#endif + +namespace JSC { + +static bool isVFPPresent() +{ +#if PLATFORM(LINUX) + int fd = open("/proc/self/auxv", O_RDONLY); + if (fd > 0) { + Elf32_auxv_t aux; + while (read(fd, &aux, sizeof(Elf32_auxv_t))) { + if (aux.a_type == AT_HWCAP) { + close(fd); + return aux.a_un.a_val & HWCAP_VFP; + } + } + close(fd); + } +#endif + + return false; +} + +const bool MacroAssemblerARM::s_isVFPPresent = isVFPPresent(); + +} + +#endif // ENABLE(ASSEMBLER) && PLATFORM(ARM) && !PLATFORM_ARM_ARCH(7) |