auto import from //depot/cupcake/@135843
diff --git a/libop/op_cpu_type.c b/libop/op_cpu_type.c
new file mode 100644
index 0000000..b9d13de
--- /dev/null
+++ b/libop/op_cpu_type.c
@@ -0,0 +1,158 @@
+/**
+ * @file op_cpu_type.c
+ * CPU type determination
+ *
+ * @remark Copyright 2002 OProfile authors
+ * @remark Read the file COPYING
+ *
+ * @author John Levon
+ * @author Philippe Elie
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "op_cpu_type.h"
+
+struct cpu_descr {
+ char const * pretty;
+ char const * name;
+ op_cpu cpu;
+ unsigned int nr_counters;
+};
+
+static struct cpu_descr const cpu_descrs[MAX_CPU_TYPE] = {
+ { "Pentium Pro", "i386/ppro", CPU_PPRO, 2 },
+ { "PII", "i386/pii", CPU_PII, 2 },
+ { "PIII", "i386/piii", CPU_PIII, 2 },
+ { "Athlon", "i386/athlon", CPU_ATHLON, 4 },
+ { "CPU with timer interrupt", "timer", CPU_TIMER_INT, 1 },
+ { "CPU with RTC device", "rtc", CPU_RTC, 1 },
+ { "P4 / Xeon", "i386/p4", CPU_P4, 8 },
+ { "IA64", "ia64/ia64", CPU_IA64, 4 },
+ { "Itanium", "ia64/itanium", CPU_IA64_1, 4 },
+ { "Itanium 2", "ia64/itanium2", CPU_IA64_2, 4 },
+ { "AMD64 processors", "x86-64/hammer", CPU_HAMMER, 4 },
+ { "P4 / Xeon with 2 hyper-threads", "i386/p4-ht", CPU_P4_HT2, 4 },
+ { "Alpha EV4", "alpha/ev4", CPU_AXP_EV4, 2 },
+ { "Alpha EV5", "alpha/ev5", CPU_AXP_EV5, 3 },
+ { "Alpha PCA56", "alpha/pca56", CPU_AXP_PCA56, 3 },
+ { "Alpha EV6", "alpha/ev6", CPU_AXP_EV6, 2 },
+ { "Alpha EV67", "alpha/ev67", CPU_AXP_EV67, 20 },
+ { "Pentium M (P6 core)", "i386/p6_mobile", CPU_P6_MOBILE, 2 },
+ { "ARM/XScale PMU1", "arm/xscale1", CPU_ARM_XSCALE1, 3 },
+ { "ARM/XScale PMU2", "arm/xscale2", CPU_ARM_XSCALE2, 5 },
+ { "ppc64 POWER4", "ppc64/power4", CPU_PPC64_POWER4, 8 },
+ { "ppc64 POWER5", "ppc64/power5", CPU_PPC64_POWER5, 6 },
+ { "ppc64 POWER5+", "ppc64/power5+", CPU_PPC64_POWER5p, 6 },
+ { "ppc64 970", "ppc64/970", CPU_PPC64_970, 8 },
+ { "MIPS 20K", "mips/20K", CPU_MIPS_20K, 1},
+ { "MIPS 24K", "mips/24K", CPU_MIPS_24K, 2},
+ { "MIPS 25K", "mips/25K", CPU_MIPS_25K, 2},
+ { "MIPS 34K", "mips/34K", CPU_MIPS_34K, 4},
+ { "MIPS 5K", "mips/5K", CPU_MIPS_5K, 2},
+ { "MIPS R10000", "mips/r10000", CPU_MIPS_R10000, 2 },
+ { "MIPS R12000", "mips/r12000", CPU_MIPS_R12000, 4 },
+ { "QED RM7000", "mips/rm7000", CPU_MIPS_RM7000, 1 },
+ { "PMC-Sierra RM9000", "mips/rm9000", CPU_MIPS_RM9000, 2 },
+ { "Sibyte SB1", "mips/sb1", CPU_MIPS_SB1, 4 },
+ { "NEC VR5432", "mips/vr5432", CPU_MIPS_VR5432, 2 },
+ { "NEC VR5500", "mips/vr5500", CPU_MIPS_VR5500, 2 },
+ { "e500", "ppc/e500", CPU_PPC_E500, 4 },
+ { "e500v2", "ppc/e500v2", CPU_PPC_E500_2, 4 },
+ { "Core Solo / Duo", "i386/core", CPU_CORE, 2 },
+ { "PowerPC G4", "ppc/7450", CPU_PPC_7450, 6 },
+ { "Core 2", "i386/core_2", CPU_CORE_2, 2 },
+ { "ppc64 POWER6", "ppc64/power6", CPU_PPC64_POWER6, 4 },
+ { "ppc64 970MP", "ppc64/970MP", CPU_PPC64_970MP, 8 },
+ { "ppc64 Cell Broadband Engine", "ppc64/cell-be", CPU_PPC64_CELL, 8 },
+ { "AMD64 family10", "x86-64/family10", CPU_FAMILY10, 4 },
+ { "ppc64 PA6T", "ppc64/pa6t", CPU_PPC64_PA6T, 6 },
+ { "ARM MPCore", "arm/mpcore", CPU_ARM_MPCORE, 2 },
+ { "ARM V6 PMU", "arm/armv6", CPU_ARM_V6, 3 },
+ { "ppc64 POWER5++", "ppc64/power5++", CPU_PPC64_POWER5pp, 6 },
+ { "e300", "ppc/e300", CPU_PPC_E300, 4 },
+ { "AVR32", "avr32", CPU_AVR32, 3 },
+};
+
+static size_t const nr_cpu_descrs = sizeof(cpu_descrs) / sizeof(struct cpu_descr);
+
+op_cpu op_get_cpu_type(void)
+{
+ int cpu_type = CPU_NO_GOOD;
+ char str[100];
+ FILE * fp;
+
+ fp = fopen("/proc/sys/dev/oprofile/cpu_type", "r");
+ if (!fp) {
+ /* Try 2.6's oprofilefs one instead. */
+ fp = fopen("/dev/oprofile/cpu_type", "r");
+ if (!fp) {
+ fprintf(stderr, "Unable to open cpu_type file for reading\n");
+ fprintf(stderr, "Make sure you have done opcontrol --init\n");
+ return cpu_type;
+ }
+ }
+
+ if (!fgets(str, 99, fp)) {
+ fprintf(stderr, "Could not read cpu type.\n");
+ return CPU_NO_GOOD;
+ }
+
+ cpu_type = op_get_cpu_number(str);
+
+ fclose(fp);
+
+ return cpu_type;
+}
+
+
+op_cpu op_get_cpu_number(char const * cpu_string)
+{
+ int cpu_type = CPU_NO_GOOD;
+ size_t i;
+
+ for (i = 0; i < nr_cpu_descrs; ++i) {
+ if (!strcmp(cpu_descrs[i].name, cpu_string)) {
+ cpu_type = cpu_descrs[i].cpu;
+ break;
+ }
+ }
+
+ /* Attempt to convert into a number */
+ if (cpu_type == CPU_NO_GOOD)
+ sscanf(cpu_string, "%d\n", &cpu_type);
+
+ if (cpu_type <= CPU_NO_GOOD || cpu_type >= MAX_CPU_TYPE)
+ cpu_type = CPU_NO_GOOD;
+
+ return cpu_type;
+}
+
+
+char const * op_get_cpu_type_str(op_cpu cpu_type)
+{
+ if (cpu_type <= CPU_NO_GOOD || cpu_type >= MAX_CPU_TYPE)
+ return "invalid cpu type";
+
+ return cpu_descrs[cpu_type].pretty;
+}
+
+
+char const * op_get_cpu_name(op_cpu cpu_type)
+{
+ if (cpu_type <= CPU_NO_GOOD || cpu_type >= MAX_CPU_TYPE)
+ return "invalid cpu type";
+
+ return cpu_descrs[cpu_type].name;
+}
+
+
+int op_get_nr_counters(op_cpu cpu_type)
+{
+ if (cpu_type <= CPU_NO_GOOD || cpu_type >= MAX_CPU_TYPE)
+ return 0;
+
+ return cpu_descrs[cpu_type].nr_counters;
+}