path: root/sysutils/mcelog/files/patch-mcelog.c

--- mcelog.c.orig	2017-10-12 20:42:20 UTC
+++ mcelog.c
@@ -20,9 +20,22 @@
 #define _GNU_SOURCE 1
 #include <sys/fcntl.h>
 #include <sys/ioctl.h>
+#ifdef __Linux__
 #include <asm/types.h>
 #include <asm/ioctls.h>
 #include <linux/limits.h>
+#endif
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <machine/cpufunc.h>
+#include <machine/cputypes.h>
+#include <machine/specialreg.h>
+#include <err.h>
+#include <kvm.h>
+#include <limits.h>
+#endif
+#undef CPU_P4
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
@@ -60,9 +73,25 @@
 #include "bus.h"
 #include "unknown.h"
 
+struct mca_record {
+	uint64_t	mr_status;
+	uint64_t	mr_addr;
+	uint64_t	mr_misc;
+	uint64_t	mr_tsc;
+	int		mr_apic_id;
+	int		mr_bank;
+	uint64_t	mr_mcg_cap;
+	uint64_t	mr_mcg_status;
+	int		mr_cpu_id;
+	int		mr_cpu_vendor_id;
+	int		mr_cpu;
+};
+
 enum cputype cputype = CPU_GENERIC;	
 
+#ifdef __Linux__
 char *logfn = LOG_DEV_FILENAME; 
+#endif
 
 int ignore_nodev;
 int filter_bogus = 1;
@@ -73,7 +102,9 @@ int ascii_mode;
 int dump_raw_ascii;
 int daemon_mode;
 static char *inputfile;
+#ifdef __Linux__
 char *processor_flags;
+#endif
 static int foreground;
 int filter_memory_errors;
 static struct config_cred runcred = { .uid = -1U, .gid = -1U };
@@ -82,6 +113,10 @@ static char pidfile_default[] = PID_FILE;
 static char logfile_default[] = LOG_FILE;
 static char *pidfile = pidfile_default;
 static char *logfile;
+#ifdef __FreeBSD__
+static char *execfile;
+static char *corefile;
+#endif
 static int debug_numerrors;
 int imc_log = -1;
 static int check_only = 0;
@@ -196,6 +231,7 @@ static void parse_cpuid(u32 cpuid, u32 *family, u32 *m
 		*model += c.c.ext_model << 4;
 }
 
+#ifdef __Linux__
 static u32 unparse_cpuid(unsigned family, unsigned model)
 {
 	union { 
@@ -213,6 +249,7 @@ static u32 unparse_cpuid(unsigned family, unsigned mod
 		c.c.ext_model = model >> 4;
 	return c.v;
 }
+#endif
 
 static char *cputype_name[] = {
 	[CPU_GENERIC] = "generic CPU",
@@ -329,6 +366,7 @@ static char *vendor[] = {
 	[8] = "NSC"
 };
 
+#ifdef __Linux__
 static unsigned cpuvendor_to_num(char *name)
 {
 	unsigned i;
@@ -343,6 +381,7 @@ static unsigned cpuvendor_to_num(char *name)
 			return i;
 	return 0;
 }
+#endif
 
 static char *cpuvendor_name(u32 cpuvendor)
 {
@@ -491,6 +530,7 @@ static void dump_mce_raw_ascii(struct mce *m, unsigned
 	Wprintf("\n");
 }
 
+#ifdef __Linux__
 int is_cpu_supported(void)
 { 
 	enum { 
@@ -561,14 +601,61 @@ int is_cpu_supported(void)
 
 	return 1;
 } 
+#endif
 
+#ifdef __FreeBSD__
+int is_cpu_supported(void)
+{
+	char vendor[20];
+	u_int regs[4];
+	u_int cpu_id;
+	int family, model;
+	static int checked;
+
+	if (checked)
+		return 1;
+
+	checked = 1;
+
+	do_cpuid(0, regs);
+	((u_int *)vendor)[0] = regs[1];
+	((u_int *)vendor)[1] = regs[3];
+	((u_int *)vendor)[2] = regs[2];
+	vendor[12] = 0;
+
+	do_cpuid(1, regs);
+	cpu_id = regs[0];
+	family = CPUID_TO_FAMILY(cpu_id);
+	model = CPUID_TO_MODEL(cpu_id);
+
+	if (cpu_forced)
+		;
+	else if (!strcmp(vendor,"AuthenticAMD")) {
+			if (family == 15) {
+				cputype = CPU_K8;
+			} else if (family >= 16) {
+				SYSERRprintf("ERROR: AMD Processor family %d: mcelog does not support this processor.  Please use the edac_mce_amd module instead.\n", family);
+				return 0;
+			}
+		} else if (!strcmp(vendor,"GenuineIntel"))
+			cputype = select_intel_cputype(family, model);
+	/* Add checks for other CPUs here */
+		else
+		return 1;
+	return 0;
+}
+#endif
+
+#ifdef __Linux__
 static char *skipspace(char *s)
 {
 	while (isspace(*s))
 		++s;
 	return s;
 }
+#endif
 
+#ifdef __Linux__
 static char *skip_syslog(char *s)
 {
 	char *p;
@@ -579,7 +666,9 @@ static char *skip_syslog(char *s)
 		return p + sizeof("mcelog: ") - 1;
 	return s;
 }
+#endif
 	
+#ifdef __Linux__
 static char *skipgunk(char *s)
 {
 	s = skip_syslog(s);
@@ -604,12 +693,16 @@ static char *skipgunk(char *s)
 
 	return skipspace(s);
 }
+#endif
 
+#ifdef __Linux__
 static inline int urange(unsigned val, unsigned lo, unsigned hi)
 {
 	return val >= lo && val <= hi;
 }
+#endif
 
+#ifdef __Linux__
 static int is_short(char *name)
 {
 	return strlen(name) == 3 && 
@@ -617,7 +710,9 @@ static int is_short(char *name)
 		islower(name[1]) &&
 		islower(name[2]);
 }
+#endif
 
+#ifdef __Linux__
 static unsigned skip_date(char *s)
 {
 	unsigned day, hour, min, year, sec; 
@@ -634,6 +729,7 @@ static unsigned skip_date(char *s)
 		return 0;
 	return next;
 }
+#endif
 
 static void dump_mce_final(struct mce *m, char *symbol, int missing, int recordlen, 
 			   int dseen)
@@ -654,6 +750,7 @@ static void dump_mce_final(struct mce *m, char *symbol
 	flushlog();
 }
 
+#ifdef __Linux__
 static char *skip_patterns[] = {
 	"MCA:*",
 	"MCi_MISC register valid*",
@@ -662,7 +759,9 @@ static char *skip_patterns[] = {
 	"Kernel does not support page offline interface",
 	NULL
 };
+#endif
 
+#ifdef __Linux__
 static int match_patterns(char *s, char **pat)
 {
 	for (; *pat; pat++) 
@@ -670,12 +769,14 @@ static int match_patterns(char *s, char **pat)
 			return 0;
 	return 1;
 }
+#endif
 
 #define FIELD(f) \
 	if (recordlen < endof_field(struct mce, f)) \
 		recordlen = endof_field(struct mce, f)
 
 /* Decode ASCII input for fatal messages */
+#ifdef __Linux__
 static void decodefatal(FILE *inf)
 {
 	struct mce m;
@@ -886,7 +987,228 @@ restart:
 	if (data)
 		dump_mce_final(&m, symbol, missing, recordlen, disclaimer_seen);
 }
+#endif
 
+#ifdef __FreeBSD__
+/*
+ * Table used to map cpuid vendor strings and FreeBSD CPU vendor IDs
+ * to Linux cpuvendor values.
+ */
+static struct {
+	char *name;
+	int vendor_id;
+	u_char cpuvendor;
+} vendor_ids[] = {
+	{ "GenuineIntel", CPU_VENDOR_INTEL, 0 },
+	{ "AuthenticAMD", CPU_VENDOR_AMD, 2 },
+	{ "CentaurHauls", CPU_VENDOR_CENTAUR, 5 },
+#ifdef __i386__
+	{ "CyrixInstead", CPU_VENDOR_CYRIX, 1 },
+	{ "UMC UMC UMC ", CPU_VENDOR_UMC, 3 },
+	{ "GenuineTMx86", CPU_VENDOR_TRANSMETA, 7 },
+	{ "Geode by NSC", CPU_VENDOR_NSC, 8 },
+#endif
+};
+
+static int find_cpu_vendor(const char *vendor)
+{
+	u_int i;
+
+	for (i = 0; i < sizeof(vendor_ids) / sizeof(vendor_ids[0]); i++)
+		if (strcmp(vendor, vendor_ids[i].name) == 0)
+			return (vendor_ids[i].cpuvendor);
+	return (0xff);
+}
+
+static int find_cpu_vendor_id(const char *vendor)
+{
+	u_int i;
+
+	for (i = 0; i < sizeof(vendor_ids) / sizeof(vendor_ids[0]); i++)
+		if (strcmp(vendor, vendor_ids[i].name) == 0)
+			return (vendor_ids[i].vendor_id);
+	return (0);
+}
+
+static int map_cpu_vendor(int vendor_id)
+{
+	u_int i;
+
+	for (i = 0; i < sizeof(vendor_ids) / sizeof(vendor_ids[0]); i++)
+		if (vendor_ids[i].vendor_id == vendor_id)
+			return (vendor_ids[i].cpuvendor);
+	return (0xff);
+}
+
+/* Convert FreeBSD's struct mca_record into a struct mce. */
+static void convert_mca(struct mca_record *mr, struct mce *mce, int live,
+    size_t len)
+{
+	memset(mce, 0, sizeof(*mce));
+	mce->status = mr->mr_status;
+	mce->misc = mr->mr_misc;
+	mce->addr = mr->mr_addr;
+	mce->mcgstatus = mr->mr_mcg_status;
+	mce->tsc = mr->mr_tsc;
+	mce->cpuvendor = map_cpu_vendor(mr->mr_cpu_vendor_id);
+	mce->cpuid = mr->mr_cpu_id;
+	mce->bank = mr->mr_bank;
+	mce->finished = 1;
+	mce->extcpu = mr->mr_cpu;
+	mce->apicid = mr->mr_apic_id;
+	mce->mcgcap = mr->mr_mcg_cap;
+
+	/*
+	 * For older live records (from sysctl), fill in some fields
+	 * using registers from the current CPU.
+	 */
+	if (len < offsetof(struct mca_record, mr_cpu_id) && live) {
+		char vendor[20];
+		u_int regs[4];
+
+		do_cpuid(0, regs);
+		((u_int *)vendor)[0] = regs[1];
+		((u_int *)vendor)[1] = regs[3];
+		((u_int *)vendor)[2] = regs[2];
+		vendor[12] = 0;
+		mce->cpuvendor = find_cpu_vendor(vendor);
+
+		do_cpuid(1, regs);
+		mce->cpuid = regs[0];
+	}
+}
+
+/* Decode ASCII input for fatal messages */
+static void decodefatal(FILE *inf)
+{
+	struct mca_record mr;
+	struct mce m;
+	long long val, val2;
+	char *cp, line[100], *s, symbol[1];
+	const char *fmt;
+	int cpu, data, old, missing;
+	enum rows {
+		BANK = 0x1,
+		MCG = 0x2,
+		VENDOR = 0x4,
+		CPU = 0x8,
+		ADDR = 0x10,
+		MISC = 0x20,
+	};
+
+	symbol[0] = '\0';
+	data = 0;
+	missing = 0;
+	old = 0;
+	memset(&mr, 0, sizeof(mr));
+	while ((s = fgets(line, sizeof(line), inf)) != NULL) {
+		s = strstr(s, "MCA: ");
+		if (s == NULL)
+			continue;
+		s += strlen("MCA: ");
+
+		if (strncmp(s, "bank", 4) == 0 || strncmp(s, "Bank", 4) == 0) {
+			/* Start of a new record, dump the previous one. */
+			if (data != 0) {
+				/* Require some minimum data. */
+				if (data & BANK) {
+					if (mr.mr_status & MC_STATUS_ADDRV &&
+					    !(data & ADDR))
+						missing = 1;
+					if (mr.mr_status & MC_STATUS_MISCV &&
+					    !(data & MISC))
+						missing = 1;
+					convert_mca(&mr, &m, 0, sizeof(mr));
+					mce_cpuid(&m);
+					dump_mce_final(&m, symbol, missing,
+					    sizeof(struct mce), 0);
+				}
+				data = 0;
+				missing = 0;
+				memset(&mr, 0, sizeof(mr));
+			}
+
+			if (s[0] == 'b') {
+				old = 1;
+				fmt = "bank %d, status 0x%llx";
+			} else {
+				old = 0;
+				fmt = "Bank %d, Status 0x%llx";
+			}
+			if (sscanf(s, fmt, &mr.mr_bank, &val) != 2)
+				missing = 1;
+			else {
+				data |= BANK;
+				mr.mr_status = val;
+			}
+		}
+		if (strncmp(s, "Global", 6) == 0) {
+			if (sscanf(s, "Global Cap 0x%llx, Status 0x%llx", &val,
+			    &val2) != 2)
+				missing = 1;
+			else {
+				data |= MCG;
+				mr.mr_mcg_cap = val;
+				mr.mr_mcg_status = val2;
+			}
+		}
+		if (strncmp(s, "Vendor \"", 8) == 0) {
+			s += 8;
+			cp = index(s, '"');
+			if (cp != NULL) {
+				*cp = '\0';
+				mr.mr_cpu_vendor_id = find_cpu_vendor_id(s);
+				s = cp + 1;
+				if (sscanf(s, ", ID 0x%x, APIC ID %d",
+				    &mr.mr_cpu_id, &mr.mr_apic_id) != 2)
+					missing = 1;
+				else
+					data |= VENDOR;
+			} else
+				missing = 1;
+		}
+		if (strncmp(s, "CPU", 3) == 0) {
+			if (sscanf(s, "CPU %d ", &cpu) != 1)
+				missing = 1;
+			else {
+				data |= CPU;
+				if (old)
+					mr.mr_apic_id = cpu;
+				else
+					mr.mr_cpu = cpu;
+			}
+		}
+		if (strncmp(s, "Address", 7) == 0) {
+			if (sscanf(s, "Address 0x%llx", &val) != 1)
+				missing = 1;
+			else {
+				data |= ADDR;
+				mr.mr_addr = val;
+			}
+		}
+		if (strncmp(s, "Misc", 4) == 0) {
+			if (sscanf(s, "Misc 0x%llx", &val) != 1)
+				missing = 1;
+			else {
+				data |= MISC;
+				mr.mr_misc = val;
+			}
+		}
+	}
+
+	/* Dump the last record. */
+	if (data & BANK) {
+		if (mr.mr_status & MC_STATUS_ADDRV && !(data & ADDR))
+			missing = 1;
+		if (mr.mr_status & MC_STATUS_MISCV && !(data & MISC))
+			missing = 1;
+		convert_mca(&mr, &m, 0, sizeof(mr));
+		mce_cpuid(&m);
+		dump_mce_final(&m, symbol, missing, sizeof(struct mce), 0);
+	}
+}
+#endif
+
 static void remove_pidfile(void)
 {
 	unlink(pidfile);
@@ -951,6 +1273,10 @@ void usage(void)
 "  mcelog [options] --ascii < log\n"
 "  mcelog [options] --ascii --file log\n"
 "Decode machine check ASCII output from kernel logs\n"
+#ifdef __FreeBSD_
+"  mcelog [options] -M vmcore -N kernel\n"
+"Decode machine check error records from kernel crashdump.\n"
+#endif
 "\n"
 "Options:\n"  
 "--version           Show the version of mcelog and exit\n"
@@ -1168,6 +1494,14 @@ static int modifier(int opt)
 		usage();
 		exit(0);
 		break;
+#ifdef __FreeBSD__
+	case 'M':
+		corefile = strdup(optarg);
+		break;
+	case 'N':
+		execfile = strdup(optarg);
+		break;
+#endif
 	case 0:
 		break;
 	default:
@@ -1218,10 +1552,12 @@ static int combined_modifier(int opt)
 
 static void general_setup(void)
 {
+#ifdef __Linux__
 	trigger_setup();
 	yellow_setup();
 	bus_setup();
 	unknown_setup();
+#endif
 	config_cred("global", "run-credentials", &runcred);
 	if (config_bool("global", "filter-memory-errors") == 1)
 		filter_memory_errors = 1;
@@ -1244,6 +1580,7 @@ static void drop_cred(void)
 	}
 }
 
+#ifdef __Linux__
 static void process(int fd, unsigned recordlen, unsigned loglen, char *buf)
 {	
 	int i; 
@@ -1296,7 +1633,174 @@ static void process(int fd, unsigned recordlen, unsign
 	if (finish)
 		exit(0);
 }
+#endif
 
+#ifdef __FreeBSD__
+#ifdef LOCAL_HACK
+struct mca_record_old {
+	uint64_t	mr_status;
+	uint64_t	mr_addr;
+	uint64_t	mr_misc;
+	uint64_t	mr_tsc;
+	int		mr_apic_id;
+	int		mr_bank;
+};
+#endif
+
+struct mca_record_internal {
+	struct mca_record rec;
+	int		logged;
+	STAILQ_ENTRY(mca_internal) link;
+};
+
+#ifdef LOCAL_HACK
+struct mca_record_internal_old {
+	struct mca_record_old rec;
+	int		logged;
+	STAILQ_ENTRY(mca_internal) link;
+};
+#endif
+
+static struct nlist nl[] = {
+#define	X_MCA_RECORDS		0
+	{ .n_name = "_mca_records" },
+#ifdef LOCAL_HACK
+#define	X_SNAPDATE		1
+	{ .n_name = "_snapdate" },
+#endif
+	{ .n_name = NULL },
+};
+
+static int
+kread(kvm_t *kvm, void *kvm_pointer, void *buf, size_t size, size_t offset)
+{
+	ssize_t ret;
+
+	ret = kvm_read(kvm, (unsigned long)kvm_pointer + offset, buf, size);
+	if (ret < 0 || (size_t)ret != size)
+		return (-1);
+	return (0);
+}
+
+static int
+kread_symbol(kvm_t *kvm, int index, void *buf, size_t size)
+{
+	ssize_t ret;
+
+	ret = kvm_read(kvm, nl[index].n_value, buf, size);
+	if (ret < 0 || (size_t)ret != size)
+		return (-1);
+	return (0);
+}
+
+static void process_kvm(const char *execfile, const char *corefile)
+{
+	struct mca_record mr, *mrp;
+	struct mce mce;
+	char errbuf[_POSIX2_LINE_MAX];
+	kvm_t *kvm;
+	size_t record_size, link_offset;
+	int i;
+#ifdef LOCAL_HACK
+	int snapdate;
+#endif
+
+	kvm = kvm_openfiles(execfile, corefile, NULL, O_RDONLY, errbuf);
+	if (kvm == NULL)
+		errx(1, "kvm_openfiles: %s", errbuf);
+	if (kvm_nlist(kvm, nl) != 0)
+		errx(1, "kvm_nlist: %s", kvm_geterr(kvm));
+
+#ifdef LOCAL_HACK
+	if (kread_symbol(kvm, X_SNAPDATE, &snapdate, sizeof(snapdate)) < 0)
+		errx(1, "kvm_read(snapdate) failed");
+#endif
+	/* stqh_first is the first pointer at this address. */
+	if (kread_symbol(kvm, X_MCA_RECORDS, &mrp, sizeof(mrp)) < 0)
+		errx(1, "kvm_read(mca_records) failed");
+#ifdef LOCAL_HACK
+	if (snapdate >= 20100329) {
+#endif
+		record_size = sizeof(struct mca_record);
+		link_offset = __offsetof(struct mca_record_internal,
+		    link.stqe_next);
+#ifdef LOCAL_HACK
+	} else {
+		record_size = sizeof(struct mca_record_old);
+		link_offset = __offsetof(struct mca_record_internal_old,
+		    link.stqe_next);
+	}
+#endif
+
+	for (i = 0; mrp != NULL; i++) {
+		memset(&mr, 0, sizeof(mr));
+		if (kread(kvm, mrp, &mr, record_size, 0) < 0)
+			break;
+		if (kread(kvm, mrp, &mrp, sizeof(mrp), link_offset) < 0)
+			mrp = NULL;
+
+		convert_mca(&mr, &mce, 1, record_size);
+		mce_prepare(&mce);
+		if (!mce_filter(&mce, sizeof(struct mce))) 
+			continue;
+		if (!dump_raw_ascii) {
+			disclaimer();
+			Wprintf("MCE %d\n", i);
+			dump_mce(&mce, sizeof(struct mce));
+		} else
+			dump_mce_raw_ascii(&mce, sizeof(struct mce));
+		flushlog();
+	}
+
+	exit(0);
+}
+
+static void process_live(void)
+{
+	struct mca_record mr;
+	struct mce mce;
+	int mib[4];
+	size_t len;
+	int count, finish, i;
+
+	len = sizeof(count);
+	if (sysctlbyname("hw.mca.count", &count, &len, NULL, 0) < 0)
+		return;
+
+	len = 4;
+	if (sysctlnametomib("hw.mca.records", mib, &len) < 0)
+		return;
+
+	finish = 0;
+	for (i = 0; i < count; i++) {
+		mib[3] = i;
+		len = sizeof(mr);
+		memset(&mr, 0, sizeof(mr));
+		if (sysctl(mib, 4, &mr, &len, NULL, 0) < 0) {
+			warn("sysctl(hw.mca.records.%d)", i);
+			continue;
+		}
+
+		convert_mca(&mr, &mce, 1, len);
+		mce_prepare(&mce);
+		if (numerrors > 0 && --numerrors == 0)
+			finish = 1;
+		if (!mce_filter(&mce, sizeof(struct mce))) 
+			continue;
+		if (!dump_raw_ascii) {
+			disclaimer();
+			Wprintf("MCE %d\n", i);
+			dump_mce(&mce, sizeof(struct mce));
+		} else
+			dump_mce_raw_ascii(&mce, sizeof(struct mce));
+		flushlog();
+	}
+
+	if (finish)
+		exit(0);
+}
+#endif
+
 static void noargs(int ac, char **av)
 {
 	if (getopt_long(ac, av, "", options, NULL) != -1) {
@@ -1358,12 +1862,14 @@ struct mcefd_data {
 	char *buf;
 };
 
+#ifdef __Linux__
 static void process_mcefd(struct pollfd *pfd, void *data)
 {
 	struct mcefd_data *d = (struct mcefd_data *)data;
 	assert((pfd->revents & POLLIN) != 0);
 	process(pfd->fd, d->recordlen, d->loglen, d->buf);
 }
+#endif
 
 static void handle_sigusr1(int sig)
 {
@@ -1372,13 +1878,18 @@ static void handle_sigusr1(int sig)
 
 int main(int ac, char **av) 
 { 
+#ifdef __Linux__
 	struct mcefd_data d = {};
-	int opt;
 	int fd;
-
+#endif
+	int opt;
 	parse_config(av);
 
+#ifdef __FreeBSD
+	while ((opt = getopt_long(ac, av, "M:N:", options, NULL)) != -1) {
+#else
 	while ((opt = getopt_long(ac, av, "", options, NULL)) != -1) { 
+#endif
 		if (opt == '?') {
 			usage(); 
 			exit(1);
@@ -1399,11 +1910,13 @@ int main(int ac, char **av) 
 	} 
 
 	/* before doing anything else let's see if the CPUs are supported */
+#ifdef __Linux__
 	if (!cpu_forced && !is_cpu_supported()) {
 		if (!check_only)
 			fprintf(stderr, "CPU is unsupported\n");
 		exit(1);
 	}
+#endif
 	if (check_only)
 		exit(0);
 
@@ -1422,15 +1935,23 @@ int main(int ac, char **av) 
 	}
 
 	modifier_finish();
+#ifdef __Linux__
 	if (av[optind])
 		logfn = av[optind++];
+#endif
 	if (av[optind]) {
 		usage();
+#ifdef __FreeBSD__
+	if ((corefile != NULL) ^ (execfile != NULL) ||
+	    (corefile != NULL && daemon_mode))
+		usage();
+#endif
 		exit(1);
 	}
 	checkdmi();
 	general_setup();
 		
+#ifdef __Linux__
 	fd = open(logfn, O_RDONLY); 
 	if (fd < 0) {
 		if (ignore_nodev) 
@@ -1445,27 +1966,44 @@ int main(int ac, char **av) 
 		err("MCE_GET_LOG_LEN");
 
 	d.buf = xalloc(d.recordlen * d.loglen); 
+#endif
 	if (daemon_mode) {
 		prefill_memdb(do_dmi);
 		if (!do_dmi)
 			closedmi();
 		server_setup();
+#ifdef __Linux__
 		page_setup();
+#endif
 		if (imc_log)
 			set_imc_log(cputype);
 		drop_cred();
+#ifdef __Linux__
 		register_pollcb(fd, POLLIN, process_mcefd, &d);
+#endif
 		if (!foreground && daemon(0, need_stdout()) < 0)
 			err("daemon");
 		if (pidfile)
 			write_pidfile();
 		signal(SIGUSR1, handle_sigusr1);
+#ifdef __Linux__
 		event_signal(SIGUSR1);
+#endif
 		eventloop();
 	} else {
+#ifdef __Linux__
 		process(fd, d.recordlen, d.loglen, d.buf);
+#endif
+#ifdef __FreeBSD__
+		if (corefile != NULL)
+			process_kvm(execfile, corefile);
+		else
+			process_live();
+#endif
 	}
+#ifdef __Linux__
 	trigger_wait();
+#endif
 		
 	exit(0); 
 }