diff options
author | Ido Barnea <ibarnea@cisco.com> | 2015-12-09 05:07:44 +0200 |
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committer | Ido Barnea <ibarnea@cisco.com> | 2015-12-27 08:50:12 +0200 |
commit | 509648b87434b9032d38b8ca5ad470ba3edcc036 (patch) | |
tree | 920548ce9e2e5aeed4c88c1b288290505e7d7987 /src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c | |
parent | b161dc672544a913f7f1ddf3a086dd75f2f1134a (diff) |
Adding dpdk 2.2 instead of dpdk 1.8 and making changes to make compilation work.
40G and 10G filters do not work yet.
Diffstat (limited to 'src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c')
-rw-r--r-- | src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c b/src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c new file mode 100644 index 00000000..8ba7b30e --- /dev/null +++ b/src/dpdk22/lib/librte_eal/common/eal_common_cpuflags.c @@ -0,0 +1,86 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "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 THE COPYRIGHT + * OWNER 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 <rte_common.h> +#include <rte_cpuflags.h> + +/* + * This should prevent use of advanced instruction sets in this file. Otherwise + * the check function itself could cause a crash. + */ +#ifdef __INTEL_COMPILER +#pragma optimize ("", off) +#else +#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) +#if GCC_VERSION > 404000 +#pragma GCC optimize ("O0") +#endif +#endif + +/** + * Checks if the machine is adequate for running the binary. If it is not, the + * program exits with status 1. + * The function attribute forces this function to be called before main(). But + * with ICC, the check is generated by the compiler. + */ +#ifndef __INTEL_COMPILER +void __attribute__ ((__constructor__)) +#else +void +#endif +rte_cpu_check_supported(void) +{ + /* This is generated at compile-time by the build system */ + static const enum rte_cpu_flag_t compile_time_flags[] = { + RTE_COMPILE_TIME_CPUFLAGS + }; + unsigned count = RTE_DIM(compile_time_flags), i; + int ret; + + for (i = 0; i < count; i++) { + ret = rte_cpu_get_flag_enabled(compile_time_flags[i]); + + if (ret < 0) { + fprintf(stderr, + "ERROR: CPU feature flag lookup failed with error %d\n", + ret); + exit(1); + } + if (!ret) { + fprintf(stderr, + "ERROR: This system does not support \"%s\".\n" + "Please check that RTE_MACHINE is set correctly.\n", + cpu_feature_table[compile_time_flags[i]].name); + exit(1); + } + } +} |