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Fix build on FreeBSD/powerpc*
This builds on the code added in 89a3f03. Since AT_PLATFORM is not available on FreeBSD, currently only architecture detection and CPU feature detection work.
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lines changed

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‎BUILD.bazel

Lines changed: 8 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -215,7 +215,10 @@ cc_library(
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PLATFORM_CPU_ARM: ["src/impl_arm_linux_or_android.c"],
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PLATFORM_CPU_ARM64: ["src/impl_aarch64_linux_or_android.c"],
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PLATFORM_CPU_MIPS: ["src/impl_mips_linux_or_android.c"],
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PLATFORM_CPU_PPC: ["src/impl_ppc_linux.c"],
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PLATFORM_CPU_PPC: [
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"src/impl_ppc_freebsd.c",
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"src/impl_ppc_linux.c",
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],
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}),
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copts = C99_FLAGS,
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includes = INCLUDES,
@@ -259,7 +262,10 @@ cc_library(
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PLATFORM_CPU_ARM: ["src/impl_arm_linux_or_android.c"],
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PLATFORM_CPU_ARM64: ["src/impl_aarch64_linux_or_android.c"],
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PLATFORM_CPU_MIPS: ["src/impl_mips_linux_or_android.c"],
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PLATFORM_CPU_PPC: ["src/impl_ppc_linux.c"],
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PLATFORM_CPU_PPC: [
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"src/impl_ppc_freebsd.c",
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"src/impl_ppc_linux.c",
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],
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}),
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hdrs = selects.with_or({
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PLATFORM_CPU_X86_64: [

‎src/impl_ppc_freebsd.c

Lines changed: 122 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "cpu_features_macros.h"
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#ifdef CPU_FEATURES_ARCH_PPC
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#ifdef CPU_FEATURES_OS_FREEBSD
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#include "cpuinfo_ppc.h"
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////////////////////////////////////////////////////////////////////////////////
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// Definitions for introspection.
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////////////////////////////////////////////////////////////////////////////////
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#define INTROSPECTION_TABLE \
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LINE(PPC_32, ppc32, "ppc32", PPC_FEATURE_32, 0) \
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LINE(PPC_64, ppc64, "ppc64", PPC_FEATURE_64, 0) \
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LINE(PPC_601_INSTR, ppc601, "ppc601", PPC_FEATURE_601_INSTR, 0) \
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LINE(PPC_HAS_ALTIVEC, altivec, "altivec", PPC_FEATURE_HAS_ALTIVEC, 0) \
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LINE(PPC_HAS_FPU, fpu, "fpu", PPC_FEATURE_HAS_FPU, 0) \
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LINE(PPC_HAS_MMU, mmu, "mmu", PPC_FEATURE_HAS_MMU, 0) \
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LINE(PPC_HAS_4xxMAC, mac_4xx, "4xxmac", PPC_FEATURE_HAS_4xxMAC, 0) \
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LINE(PPC_UNIFIED_CACHE, unifiedcache, "ucache", PPC_FEATURE_UNIFIED_CACHE, \
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0) \
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LINE(PPC_HAS_SPE, spe, "spe", PPC_FEATURE_HAS_SPE, 0) \
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LINE(PPC_HAS_EFP_SINGLE, efpsingle, "efpsingle", PPC_FEATURE_HAS_EFP_SINGLE, \
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0) \
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LINE(PPC_HAS_EFP_DOUBLE, efpdouble, "efpdouble", PPC_FEATURE_HAS_EFP_DOUBLE, \
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0) \
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LINE(PPC_NO_TB, no_tb, "notb", PPC_FEATURE_NO_TB, 0) \
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LINE(PPC_POWER4, power4, "power4", PPC_FEATURE_POWER4, 0) \
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LINE(PPC_POWER5, power5, "power5", PPC_FEATURE_POWER5, 0) \
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LINE(PPC_POWER5_PLUS, power5plus, "power5+", PPC_FEATURE_POWER5_PLUS, 0) \
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LINE(PPC_CELL, cell, "cellbe", PPC_FEATURE_CELL, 0) \
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LINE(PPC_BOOKE, booke, "booke", PPC_FEATURE_BOOKE, 0) \
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LINE(PPC_SMT, smt, "smt", PPC_FEATURE_SMT, 0) \
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LINE(PPC_ICACHE_SNOOP, icachesnoop, "ic_snoop", PPC_FEATURE_ICACHE_SNOOP, 0) \
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LINE(PPC_ARCH_2_05, arch205, "arch_2_05", PPC_FEATURE_ARCH_2_05, 0) \
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LINE(PPC_PA6T, pa6t, "pa6t", PPC_FEATURE_PA6T, 0) \
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LINE(PPC_HAS_DFP, dfp, "dfp", PPC_FEATURE_HAS_DFP, 0) \
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LINE(PPC_POWER6_EXT, power6ext, "power6x", PPC_FEATURE_POWER6_EXT, 0) \
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LINE(PPC_ARCH_2_06, arch206, "arch_2_06", PPC_FEATURE_ARCH_2_06, 0) \
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LINE(PPC_HAS_VSX, vsx, "vsx", PPC_FEATURE_HAS_VSX, 0) \
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LINE(PPC_PSERIES_PERFMON_COMPAT, pseries_perfmon_compat, "archpmu", \
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PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0) \
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LINE(PPC_TRUE_LE, truele, "true_le", PPC_FEATURE_TRUE_LE, 0) \
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LINE(PPC_PPC_LE, ppcle, "ppcle", PPC_FEATURE_PPC_LE, 0) \
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LINE(PPC_ARCH_2_07, arch207, "arch_2_07", 0, PPC_FEATURE2_ARCH_2_07) \
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LINE(PPC_HTM, htm, "htm", 0, PPC_FEATURE2_HTM) \
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LINE(PPC_DSCR, dscr, "dscr", 0, PPC_FEATURE2_DSCR) \
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LINE(PPC_EBB, ebb, "ebb", 0, PPC_FEATURE2_EBB) \
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LINE(PPC_ISEL, isel, "isel", 0, PPC_FEATURE2_ISEL) \
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LINE(PPC_TAR, tar, "tar", 0, PPC_FEATURE2_TAR) \
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LINE(PPC_VEC_CRYPTO, vcrypto, "vcrypto", 0, PPC_FEATURE2_VEC_CRYPTO) \
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LINE(PPC_HTM_NOSC, htm_nosc, "htm-nosc", 0, PPC_FEATURE2_HTM_NOSC) \
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LINE(PPC_ARCH_3_00, arch300, "arch_3_00", 0, PPC_FEATURE2_ARCH_3_00) \
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LINE(PPC_HAS_IEEE128, ieee128, "ieee128", 0, PPC_FEATURE2_HAS_IEEE128) \
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LINE(PPC_DARN, darn, "darn", 0, PPC_FEATURE2_DARN) \
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LINE(PPC_SCV, scv, "scv", 0, PPC_FEATURE2_SCV) \
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LINE(PPC_HTM_NO_SUSPEND, htm_no_suspend, "htm-no-suspend", 0, \
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PPC_FEATURE2_HTM_NO_SUSPEND)
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#undef PPC // Remove conflict with compiler generated preprocessor
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#define INTROSPECTION_PREFIX PPC
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#define INTROSPECTION_ENUM_PREFIX PPC
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#include "define_introspection_and_hwcaps.inl"
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////////////////////////////////////////////////////////////////////////////////
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// Implementation.
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////////////////////////////////////////////////////////////////////////////////
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#include <stdbool.h>
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#include "internal/bit_utils.h"
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#include "internal/filesystem.h"
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#include "internal/hwcaps.h"
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#include "internal/stack_line_reader.h"
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#include "internal/string_view.h"
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static const PPCInfo kEmptyPPCInfo;
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PPCInfo GetPPCInfo(void) {
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PPCInfo info = kEmptyPPCInfo;
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const HardwareCapabilities hwcaps = CpuFeatures_GetHardwareCapabilities();
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for (size_t i = 0; i < PPC_LAST_; ++i) {
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if (CpuFeatures_IsHwCapsSet(kHardwareCapabilities[i], hwcaps)) {
96+
kSetters[i](&info.features, true);
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}
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}
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return info;
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}
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static const PPCPlatformStrings kEmptyPPCPlatformStrings;
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PPCPlatformStrings GetPPCPlatformStrings(void) {
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PPCPlatformStrings strings = kEmptyPPCPlatformStrings;
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const char* platform = CpuFeatures_GetPlatformPointer();
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const char* base_platform = CpuFeatures_GetBasePlatformPointer();
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if (platform != NULL)
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CpuFeatures_StringView_CopyString(str(platform), strings.type.platform,
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sizeof(strings.type.platform));
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if (base_platform != NULL)
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CpuFeatures_StringView_CopyString(str(base_platform),
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strings.type.base_platform,
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sizeof(strings.type.base_platform));
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return strings;
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}
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#endif // CPU_FEATURES_OS_FREEBSD
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#endif // CPU_FEATURES_ARCH_PPC

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