regs->rax = 0;
regs->rsp = infop->start_stack;
regs->rip = infop->entry;
+ if (bsd_type == target_freebsd) {
+ regs->rdi = infop->start_stack;
+ }
}
#else
#else
if (personality(infop->personality) == PER_LINUX32)
regs->u_regs[14] = infop->start_stack - 16 * 4;
- else
+ else {
regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
+ if (bsd_type == target_freebsd) {
+ regs->u_regs[8] = infop->start_stack;
+ regs->u_regs[11] = infop->start_stack;
+ }
+ }
#endif
}
{ TARGET_FREEBSD_NR_ftruncate, "ftruncate", NULL, NULL, NULL },
{ TARGET_FREEBSD_NR_futimes, "futimes", NULL, NULL, NULL },
{ TARGET_FREEBSD_NR_getdirentries, "getdirentries", NULL, NULL, NULL },
+{ TARGET_FREEBSD_NR_freebsd6_mmap, "freebsd6_mmap", NULL, NULL, NULL },
{ TARGET_FREEBSD_NR_getegid, "getegid", "%s()", NULL, NULL },
{ TARGET_FREEBSD_NR_geteuid, "geteuid", "%s()", NULL, NULL },
{ TARGET_FREEBSD_NR_getfh, "getfh", NULL, NULL, NULL },
struct target_vm86plus_info_struct vm86plus;
};
+/* FreeBSD sysarch(2) */
+#define TARGET_FREEBSD_I386_GET_LDT 0
+#define TARGET_FREEBSD_I386_SET_LDT 1
+ /* I386_IOPL */
+#define TARGET_FREEBSD_I386_GET_IOPERM 3
+#define TARGET_FREEBSD_I386_SET_IOPERM 4
+ /* xxxxx */
+#define TARGET_FREEBSD_I386_VM86 6
+#define TARGET_FREEBSD_I386_GET_FSBASE 7
+#define TARGET_FREEBSD_I386_SET_FSBASE 8
+#define TARGET_FREEBSD_I386_GET_GSBASE 9
+#define TARGET_FREEBSD_I386_SET_GSBASE 10
+
+
#define UNAME_MACHINE "i386"
static const char *interp_prefix = CONFIG_QEMU_PREFIX;
const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
extern char **environ;
+enum BSDType bsd_type;
/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
we allocate a bigger stack. Need a better solution, for example
}
#endif
-void cpu_loop(CPUX86State *env, enum BSDType bsd_type)
+void cpu_loop(CPUX86State *env)
{
int trapnr;
abi_ulong pc;
switch(trapnr) {
case 0x80:
/* syscall from int $0x80 */
- env->regs[R_EAX] = do_openbsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EBX],
- env->regs[R_ECX],
- env->regs[R_EDX],
- env->regs[R_ESI],
- env->regs[R_EDI],
- env->regs[R_EBP]);
+ if (bsd_type == target_freebsd) {
+ abi_ulong params = (abi_ulong) env->regs[R_ESP] +
+ sizeof(int32_t);
+ int32_t syscall_nr = env->regs[R_EAX];
+ int32_t arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8;
+
+ if (syscall_nr == TARGET_FREEBSD_NR_syscall) {
+ get_user_s32(syscall_nr, params);
+ params += sizeof(int32_t);
+ } else if (syscall_nr == TARGET_FREEBSD_NR___syscall) {
+ get_user_s32(syscall_nr, params);
+ params += sizeof(int64_t);
+ }
+ get_user_s32(arg1, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg2, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg3, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg4, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg5, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg6, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg7, params);
+ params += sizeof(int32_t);
+ get_user_s32(arg8, params);
+ env->regs[R_EAX] = do_freebsd_syscall(env,
+ syscall_nr,
+ arg1,
+ arg2,
+ arg3,
+ arg4,
+ arg5,
+ arg6,
+ arg7,
+ arg8);
+ } else { //if (bsd_type == target_openbsd)
+ env->regs[R_EAX] = do_openbsd_syscall(env,
+ env->regs[R_EAX],
+ env->regs[R_EBX],
+ env->regs[R_ECX],
+ env->regs[R_EDX],
+ env->regs[R_ESI],
+ env->regs[R_EDI],
+ env->regs[R_EBP]);
+ }
+ if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) {
+ env->regs[R_EAX] = -env->regs[R_EAX];
+ env->eflags |= CC_C;
+ } else {
+ env->eflags &= ~CC_C;
+ }
break;
#ifndef TARGET_ABI32
case EXCP_SYSCALL:
- /* linux syscall from syscall intruction */
- env->regs[R_EAX] = do_openbsd_syscall(env,
- env->regs[R_EAX],
- env->regs[R_EDI],
- env->regs[R_ESI],
- env->regs[R_EDX],
- env->regs[10],
- env->regs[8],
- env->regs[9]);
+ /* syscall from syscall intruction */
+ if (bsd_type == target_freebsd)
+ env->regs[R_EAX] = do_freebsd_syscall(env,
+ env->regs[R_EAX],
+ env->regs[R_EDI],
+ env->regs[R_ESI],
+ env->regs[R_EDX],
+ env->regs[R_ECX],
+ env->regs[8],
+ env->regs[9], 0, 0);
+ else { //if (bsd_type == target_openbsd)
+ env->regs[R_EAX] = do_openbsd_syscall(env,
+ env->regs[R_EAX],
+ env->regs[R_EDI],
+ env->regs[R_ESI],
+ env->regs[R_EDX],
+ env->regs[10],
+ env->regs[8],
+ env->regs[9]);
+ }
env->eip = env->exception_next_eip;
+ if (((abi_ulong)env->regs[R_EAX]) >= (abi_ulong)(-515)) {
+ env->regs[R_EAX] = -env->regs[R_EAX];
+ env->eflags |= CC_C;
+ } else {
+ env->eflags &= ~CC_C;
+ }
break;
#endif
#if 0
#endif
}
-void cpu_loop(CPUSPARCState *env, enum BSDType bsd_type)
+void cpu_loop(CPUSPARCState *env)
{
int trapnr, ret, syscall_nr;
//target_siginfo_t info;
#ifndef TARGET_SPARC64
case 0x80:
#else
+ /* FreeBSD uses 0x141 for syscalls too */
+ case 0x141:
+ if (bsd_type != target_freebsd)
+ goto badtrap;
case 0x100:
#endif
syscall_nr = env->gregs[1];
ret = do_freebsd_syscall(env, syscall_nr,
env->regwptr[0], env->regwptr[1],
env->regwptr[2], env->regwptr[3],
- env->regwptr[4], env->regwptr[5]);
+ env->regwptr[4], env->regwptr[5], 0, 0);
else if (bsd_type == target_netbsd)
ret = do_netbsd_syscall(env, syscall_nr,
env->regwptr[0], env->regwptr[1],
env->regwptr[4], env->regwptr[5]);
}
if ((unsigned int)ret >= (unsigned int)(-515)) {
+ ret = -ret;
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
env->xcc |= PSR_CARRY;
#else
}
break;
default:
+#ifdef TARGET_SPARC64
+ badtrap:
+#endif
printf ("Unhandled trap: 0x%x\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
exit (1);
int gdbstub_port = 0;
char **target_environ, **wrk;
envlist_t *envlist = NULL;
- enum BSDType bsd_type = target_openbsd;
+ bsd_type = target_openbsd;
if (argc <= 1)
usage();
gdbserver_start (gdbstub_port);
gdb_handlesig(env, 0);
}
- cpu_loop(env, bsd_type);
+ cpu_loop(env);
/* never exits */
return 0;
}
target_netbsd,
target_openbsd,
};
+extern enum BSDType bsd_type;
#include "syscall_defs.h"
#include "syscall.h"
void syscall_init(void);
abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
abi_long arg2, abi_long arg3, abi_long arg4,
- abi_long arg5, abi_long arg6);
+ abi_long arg5, abi_long arg6, abi_long arg7,
+ abi_long arg8);
abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
abi_long arg2, abi_long arg3, abi_long arg4,
abi_long arg5, abi_long arg6);
abi_long arg5, abi_long arg6);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
extern THREAD CPUState *thread_env;
-void cpu_loop(CPUState *env, enum BSDType bsd_type);
+void cpu_loop(CPUState *env);
char *target_strerror(int err);
int get_osversion(void);
void fork_start(void);
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/syscall.h>
+#include <sys/sysctl.h>
#include <signal.h>
#include <utime.h>
static abi_ulong target_brk;
static abi_ulong target_original_brk;
-#define get_errno(x) (x)
+static inline abi_long get_errno(abi_long ret)
+{
+ if (ret == -1)
+ /* XXX need to translate host -> target errnos here */
+ return -(errno);
+ else
+ return ret;
+}
+
#define target_to_host_bitmask(x, tbl) (x)
+static inline int is_error(abi_long ret)
+{
+ return (abi_ulong)ret >= (abi_ulong)(-4096);
+}
+
void target_set_brk(abi_ulong new_brk)
{
target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
}
+/* do_obreak() must return target errnos. */
+static abi_long do_obreak(abi_ulong new_brk)
+{
+ abi_ulong brk_page;
+ abi_long mapped_addr;
+ int new_alloc_size;
+
+ if (!new_brk)
+ return 0;
+ if (new_brk < target_original_brk)
+ return -TARGET_EINVAL;
+
+ brk_page = HOST_PAGE_ALIGN(target_brk);
+
+ /* If the new brk is less than this, set it and we're done... */
+ if (new_brk < brk_page) {
+ target_brk = new_brk;
+ return 0;
+ }
+
+ /* We need to allocate more memory after the brk... */
+ new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
+ mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
+ PROT_READ|PROT_WRITE,
+ MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0));
+
+ if (!is_error(mapped_addr))
+ target_brk = new_brk;
+ else
+ return mapped_addr;
+
+ return 0;
+}
+
+#if defined(TARGET_I386)
+static abi_long do_freebsd_sysarch(CPUX86State *env, int op, abi_ulong parms)
+{
+ abi_long ret = 0;
+ abi_ulong val;
+ int idx;
+
+ switch(op) {
+#ifdef TARGET_ABI32
+ case TARGET_FREEBSD_I386_SET_GSBASE:
+ case TARGET_FREEBSD_I386_SET_FSBASE:
+ if (op == TARGET_FREEBSD_I386_SET_GSBASE)
+#else
+ case TARGET_FREEBSD_AMD64_SET_GSBASE:
+ case TARGET_FREEBSD_AMD64_SET_FSBASE:
+ if (op == TARGET_FREEBSD_AMD64_SET_GSBASE)
+#endif
+ idx = R_GS;
+ else
+ idx = R_FS;
+ if (get_user(val, parms, abi_ulong))
+ return -TARGET_EFAULT;
+ cpu_x86_load_seg(env, idx, 0);
+ env->segs[idx].base = val;
+ break;
+#ifdef TARGET_ABI32
+ case TARGET_FREEBSD_I386_GET_GSBASE:
+ case TARGET_FREEBSD_I386_GET_FSBASE:
+ if (op == TARGET_FREEBSD_I386_GET_GSBASE)
+#else
+ case TARGET_FREEBSD_AMD64_GET_GSBASE:
+ case TARGET_FREEBSD_AMD64_GET_FSBASE:
+ if (op == TARGET_FREEBSD_AMD64_GET_GSBASE)
+#endif
+ idx = R_GS;
+ else
+ idx = R_FS;
+ val = env->segs[idx].base;
+ if (put_user(val, parms, abi_ulong))
+ return -TARGET_EFAULT;
+ break;
+ /* XXX handle the others... */
+ default:
+ ret = -TARGET_EINVAL;
+ break;
+ }
+ return ret;
+}
+#endif
+
+#ifdef TARGET_SPARC
+static abi_long do_freebsd_sysarch(void *env, int op, abi_ulong parms)
+{
+ /* XXX handle
+ * TARGET_FREEBSD_SPARC_UTRAP_INSTALL,
+ * TARGET_FREEBSD_SPARC_SIGTRAMP_INSTALL
+ */
+ return -TARGET_EINVAL;
+}
+#endif
+
+#ifdef __FreeBSD__
+/*
+ * XXX this uses the undocumented oidfmt interface to find the kind of
+ * a requested sysctl, see /sys/kern/kern_sysctl.c:sysctl_sysctl_oidfmt()
+ * (this is mostly copied from src/sbin/sysctl/sysctl.c)
+ */
+static int
+oidfmt(int *oid, int len, char *fmt, uint32_t *kind)
+{
+ int qoid[CTL_MAXNAME+2];
+ uint8_t buf[BUFSIZ];
+ int i;
+ size_t j;
+
+ qoid[0] = 0;
+ qoid[1] = 4;
+ memcpy(qoid + 2, oid, len * sizeof(int));
+
+ j = sizeof(buf);
+ i = sysctl(qoid, len + 2, buf, &j, 0, 0);
+ if (i)
+ return i;
+
+ if (kind)
+ *kind = *(uint32_t *)buf;
+
+ if (fmt)
+ strcpy(fmt, (char *)(buf + sizeof(uint32_t)));
+ return (0);
+}
+
+/*
+ * try and convert sysctl return data for the target.
+ * XXX doesn't handle CTLTYPE_OPAQUE and CTLTYPE_STRUCT.
+ */
+static int sysctl_oldcvt(void *holdp, size_t holdlen, uint32_t kind)
+{
+ switch (kind & CTLTYPE) {
+ case CTLTYPE_INT:
+ case CTLTYPE_UINT:
+ *(uint32_t *)holdp = tswap32(*(uint32_t *)holdp);
+ break;
+#ifdef TARGET_ABI32
+ case CTLTYPE_LONG:
+ case CTLTYPE_ULONG:
+ *(uint32_t *)holdp = tswap32(*(long *)holdp);
+ break;
+#else
+ case CTLTYPE_LONG:
+ *(uint64_t *)holdp = tswap64(*(long *)holdp);
+ case CTLTYPE_ULONG:
+ *(uint64_t *)holdp = tswap64(*(unsigned long *)holdp);
+ break;
+#endif
+ case CTLTYPE_QUAD:
+ *(uint64_t *)holdp = tswap64(*(uint64_t *)holdp);
+ break;
+ case CTLTYPE_STRING:
+ break;
+ default:
+ /* XXX unhandled */
+ return -1;
+ }
+ return 0;
+}
+
+/* XXX this needs to be emulated on non-FreeBSD hosts... */
+static abi_long do_freebsd_sysctl(abi_ulong namep, int32_t namelen, abi_ulong oldp,
+ abi_ulong oldlenp, abi_ulong newp, abi_ulong newlen)
+{
+ abi_long ret;
+ void *hnamep, *holdp, *hnewp = NULL;
+ size_t holdlen;
+ abi_ulong oldlen = 0;
+ int32_t *snamep = qemu_malloc(sizeof(int32_t) * namelen), *p, *q, i;
+ uint32_t kind = 0;
+
+ if (oldlenp)
+ get_user_ual(oldlen, oldlenp);
+ if (!(hnamep = lock_user(VERIFY_READ, namep, namelen, 1)))
+ return -TARGET_EFAULT;
+ if (newp && !(hnewp = lock_user(VERIFY_READ, newp, newlen, 1)))
+ return -TARGET_EFAULT;
+ if (!(holdp = lock_user(VERIFY_WRITE, oldp, oldlen, 0)))
+ return -TARGET_EFAULT;
+ holdlen = oldlen;
+ for (p = hnamep, q = snamep, i = 0; i < namelen; p++, i++)
+ *q++ = tswap32(*p);
+ oidfmt(snamep, namelen, NULL, &kind);
+ /* XXX swap hnewp */
+ ret = get_errno(sysctl(snamep, namelen, holdp, &holdlen, hnewp, newlen));
+ if (!ret)
+ sysctl_oldcvt(holdp, holdlen, kind);
+ put_user_ual(holdlen, oldlenp);
+ unlock_user(hnamep, namep, 0);
+ unlock_user(holdp, oldp, holdlen);
+ if (hnewp)
+ unlock_user(hnewp, newp, 0);
+ qemu_free(snamep);
+ return ret;
+}
+#endif
+
+/* FIXME
+ * lock_iovec()/unlock_iovec() have a return code of 0 for success where
+ * other lock functions have a return code of 0 for failure.
+ */
+static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
+ int count, int copy)
+{
+ struct target_iovec *target_vec;
+ abi_ulong base;
+ int i;
+
+ target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
+ if (!target_vec)
+ return -TARGET_EFAULT;
+ for(i = 0;i < count; i++) {
+ base = tswapl(target_vec[i].iov_base);
+ vec[i].iov_len = tswapl(target_vec[i].iov_len);
+ if (vec[i].iov_len != 0) {
+ vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
+ /* Don't check lock_user return value. We must call writev even
+ if a element has invalid base address. */
+ } else {
+ /* zero length pointer is ignored */
+ vec[i].iov_base = NULL;
+ }
+ }
+ unlock_user (target_vec, target_addr, 0);
+ return 0;
+}
+
+static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
+ int count, int copy)
+{
+ struct target_iovec *target_vec;
+ abi_ulong base;
+ int i;
+
+ target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
+ if (!target_vec)
+ return -TARGET_EFAULT;
+ for(i = 0;i < count; i++) {
+ if (target_vec[i].iov_base) {
+ base = tswapl(target_vec[i].iov_base);
+ unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
+ }
+ }
+ unlock_user (target_vec, target_addr, 0);
+
+ return 0;
+}
+
/* do_syscall() should always have a single exit point at the end so
that actions, such as logging of syscall results, can be performed.
All errnos that do_syscall() returns must be -TARGET_<errcode>. */
abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
abi_long arg2, abi_long arg3, abi_long arg4,
- abi_long arg5, abi_long arg6)
+ abi_long arg5, abi_long arg6, abi_long arg7,
+ abi_long arg8)
{
abi_long ret;
void *p;
ret = get_errno(write(arg1, p, arg3));
unlock_user(p, arg2, 0);
break;
+ case TARGET_FREEBSD_NR_writev:
+ {
+ int count = arg3;
+ struct iovec *vec;
+
+ vec = alloca(count * sizeof(struct iovec));
+ if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
+ goto efault;
+ ret = get_errno(writev(arg1, vec, count));
+ unlock_iovec(vec, arg2, count, 0);
+ }
+ break;
case TARGET_FREEBSD_NR_open:
if (!(p = lock_user_string(arg1)))
goto efault;
case TARGET_FREEBSD_NR_mprotect:
ret = get_errno(target_mprotect(arg1, arg2, arg3));
break;
+ case TARGET_FREEBSD_NR_break:
+ ret = do_obreak(arg1);
+ break;
+#ifdef __FreeBSD__
+ case TARGET_FREEBSD_NR___sysctl:
+ ret = do_freebsd_sysctl(arg1, arg2, arg3, arg4, arg5, arg6);
+ break;
+#endif
+ case TARGET_FREEBSD_NR_sysarch:
+ ret = do_freebsd_sysarch(cpu_env, arg1, arg2);
+ break;
case TARGET_FREEBSD_NR_syscall:
case TARGET_FREEBSD_NR___syscall:
- ret = do_freebsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
+ ret = do_freebsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,arg7,arg8,0);
break;
default:
- ret = syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
+ ret = get_errno(syscall(num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8));
break;
}
fail:
#include "freebsd/syscall_nr.h"
#include "netbsd/syscall_nr.h"
#include "openbsd/syscall_nr.h"
+
+struct target_iovec {
+ abi_long iov_base; /* Starting address */
+ abi_long iov_len; /* Number of bytes */
+};
+
abi_ulong __unused5;
};
+/* FreeBSD sysarch(2) */
+#define TARGET_FREEBSD_I386_GET_LDT 0
+#define TARGET_FREEBSD_I386_SET_LDT 1
+ /* I386_IOPL */
+#define TARGET_FREEBSD_I386_GET_IOPERM 3
+#define TARGET_FREEBSD_I386_SET_IOPERM 4
+ /* xxxxx */
+#define TARGET_FREEBSD_I386_GET_FSBASE 7
+#define TARGET_FREEBSD_I386_SET_FSBASE 8
+#define TARGET_FREEBSD_I386_GET_GSBASE 9
+#define TARGET_FREEBSD_I386_SET_GSBASE 10
+
+#define TARGET_FREEBSD_AMD64_GET_FSBASE 128
+#define TARGET_FREEBSD_AMD64_SET_FSBASE 129
+#define TARGET_FREEBSD_AMD64_GET_GSBASE 130
+#define TARGET_FREEBSD_AMD64_SET_GSBASE 131
+
+
#define UNAME_MACHINE "x86_64"
#define TARGET_ARCH_SET_GS 0x1001
# define TRAP_sig(context) ((context)->uc_mcontext->es.trapno)
# define ERROR_sig(context) ((context)->uc_mcontext->es.err)
# define MASK_sig(context) ((context)->uc_sigmask)
+#elif defined (__NetBSD__)
+# include <ucontext.h>
+
+# define EIP_sig(context) ((context)->uc_mcontext.__gregs[_REG_EIP])
+# define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO])
+# define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR])
+# define MASK_sig(context) ((context)->uc_sigmask)
+#elif defined (__FreeBSD__) || defined(__DragonFly__)
+# include <ucontext.h>
+
+# define EIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext.mc_eip))
+# define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno)
+# define ERROR_sig(context) ((context)->uc_mcontext.mc_err)
+# define MASK_sig(context) ((context)->uc_sigmask)
#elif defined(__OpenBSD__)
# define EIP_sig(context) ((context)->sc_eip)
# define TRAP_sig(context) ((context)->sc_trapno)
void *puc)
{
siginfo_t *info = pinfo;
-#if defined(__OpenBSD__)
+#if defined(__NetBSD__) || defined (__FreeBSD__) || defined(__DragonFly__)
+ ucontext_t *uc = puc;
+#elif defined(__OpenBSD__)
struct sigcontext *uc = puc;
#else
struct ucontext *uc = puc;
#define TRAP_sig(context) ((context)->sc_trapno)
#define ERROR_sig(context) ((context)->sc_err)
#define MASK_sig(context) ((context)->sc_mask)
+#elif defined (__FreeBSD__) || defined(__DragonFly__)
+#include <ucontext.h>
+
+#define PC_sig(context) (*((unsigned long*)&(context)->uc_mcontext.mc_rip))
+#define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno)
+#define ERROR_sig(context) ((context)->uc_mcontext.mc_err)
+#define MASK_sig(context) ((context)->uc_sigmask)
#else
#define PC_sig(context) ((context)->uc_mcontext.gregs[REG_RIP])
#define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO])
{
siginfo_t *info = pinfo;
unsigned long pc;
-#ifdef __NetBSD__
+#if defined(__NetBSD__) || defined (__FreeBSD__) || defined(__DragonFly__)
ucontext_t *uc = puc;
#elif defined(__OpenBSD__)
struct sigcontext *uc = puc;
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