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Index: head/sys/conf/files.i386
===================================================================
--- head/sys/conf/files.i386
+++ head/sys/conf/files.i386
@@ -7,6 +7,18 @@
# limitations in config: backslash-newline doesn't work in strings, and
# dependency lines other than the first are silently ignored.
#
+cloudabi32_vdso.o optional compat_cloudabi32 \
+ dependency "$S/contrib/cloudabi/cloudabi_vdso_i686.S" \
+ compile-with "${CC} -x assembler-with-cpp -shared -nostdinc -nostdlib -Wl,-T$S/compat/cloudabi/cloudabi_vdso.lds $S/contrib/cloudabi/cloudabi_vdso_i686.S -o ${.TARGET}" \
+ no-obj no-implicit-rule \
+ clean "cloudabi32_vdso.o"
+#
+cloudabi32_vdso_blob.o optional compat_cloudabi32 \
+ dependency "cloudabi32_vdso.o" \
+ compile-with "${OBJCOPY} --input-target binary --output-target elf32-i386-freebsd --binary-architecture i386 cloudabi32_vdso.o ${.TARGET}" \
+ no-implicit-rule \
+ clean "cloudabi32_vdso_blob.o"
+#
linux_genassym.o optional compat_linux \
dependency "$S/i386/linux/linux_genassym.c" \
compile-with "${CC} ${CFLAGS:N-fno-common} -c ${.IMPSRC}" \
@@ -456,6 +468,7 @@
i386/bios/mca_machdep.c optional mca
i386/bios/smapi.c optional smapi
i386/bios/smapi_bios.S optional smapi
+i386/cloudabi32/cloudabi32_sysvec.c optional compat_cloudabi32
#i386/i386/apic_vector.s optional apic
i386/i386/atomic.c standard \
compile-with "${CC} -c ${CFLAGS} ${DEFINED_PROF:S/^$/-fomit-frame-pointer/} ${.IMPSRC}"
Index: head/sys/contrib/cloudabi/cloudabi_vdso_i686.S
===================================================================
--- head/sys/contrib/cloudabi/cloudabi_vdso_i686.S
+++ head/sys/contrib/cloudabi/cloudabi_vdso_i686.S
@@ -0,0 +1,477 @@
+// Copyright (c) 2016 Nuxi (https://nuxi.nl/) and contributors.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. 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.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+//
+// This file is automatically generated. Do not edit.
+//
+// Source: https://github.com/NuxiNL/cloudabi
+
+#define ENTRY(name) \
+ .text; \
+ .p2align 2, 0x90; \
+ .global name; \
+ .type name, @function; \
+ name:
+
+#define END(name) .size name, . - name
+
+ENTRY(cloudabi_sys_clock_res_get)
+ mov $0, %eax
+ int $0x80
+ jc 1f
+ mov 0x8(%esp), %ecx
+ mov %eax, 0(%ecx)
+ mov %edx, 4(%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_clock_res_get)
+
+ENTRY(cloudabi_sys_clock_time_get)
+ mov $1, %eax
+ int $0x80
+ jc 1f
+ mov 0x10(%esp), %ecx
+ mov %eax, 0(%ecx)
+ mov %edx, 4(%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_clock_time_get)
+
+ENTRY(cloudabi_sys_condvar_signal)
+ mov $2, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_condvar_signal)
+
+ENTRY(cloudabi_sys_fd_close)
+ mov $3, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_close)
+
+ENTRY(cloudabi_sys_fd_create1)
+ mov $4, %eax
+ int $0x80
+ jc 1f
+ mov 0x8(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_create1)
+
+ENTRY(cloudabi_sys_fd_create2)
+ mov $5, %eax
+ int $0x80
+ jc 1f
+ mov 0x8(%esp), %ecx
+ mov %eax, (%ecx)
+ mov 0xc(%esp), %ecx
+ mov %edx, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_create2)
+
+ENTRY(cloudabi_sys_fd_datasync)
+ mov $6, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_datasync)
+
+ENTRY(cloudabi_sys_fd_dup)
+ mov $7, %eax
+ int $0x80
+ jc 1f
+ mov 0x8(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_dup)
+
+ENTRY(cloudabi_sys_fd_pread)
+ mov $8, %eax
+ int $0x80
+ jc 1f
+ mov 0x18(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_pread)
+
+ENTRY(cloudabi_sys_fd_pwrite)
+ mov $9, %eax
+ int $0x80
+ jc 1f
+ mov 0x18(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_pwrite)
+
+ENTRY(cloudabi_sys_fd_read)
+ mov $10, %eax
+ int $0x80
+ jc 1f
+ mov 0x10(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_read)
+
+ENTRY(cloudabi_sys_fd_replace)
+ mov $11, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_replace)
+
+ENTRY(cloudabi_sys_fd_seek)
+ mov $12, %eax
+ int $0x80
+ jc 1f
+ mov 0x14(%esp), %ecx
+ mov %eax, 0(%ecx)
+ mov %edx, 4(%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_seek)
+
+ENTRY(cloudabi_sys_fd_stat_get)
+ mov $13, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_stat_get)
+
+ENTRY(cloudabi_sys_fd_stat_put)
+ mov $14, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_stat_put)
+
+ENTRY(cloudabi_sys_fd_sync)
+ mov $15, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_fd_sync)
+
+ENTRY(cloudabi_sys_fd_write)
+ mov $16, %eax
+ int $0x80
+ jc 1f
+ mov 0x10(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_fd_write)
+
+ENTRY(cloudabi_sys_file_advise)
+ mov $17, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_advise)
+
+ENTRY(cloudabi_sys_file_allocate)
+ mov $18, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_allocate)
+
+ENTRY(cloudabi_sys_file_create)
+ mov $19, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_create)
+
+ENTRY(cloudabi_sys_file_link)
+ mov $20, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_link)
+
+ENTRY(cloudabi_sys_file_open)
+ mov $21, %eax
+ int $0x80
+ jc 1f
+ mov 0x1c(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_file_open)
+
+ENTRY(cloudabi_sys_file_readdir)
+ mov $22, %eax
+ int $0x80
+ jc 1f
+ mov 0x18(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_file_readdir)
+
+ENTRY(cloudabi_sys_file_readlink)
+ mov $23, %eax
+ int $0x80
+ jc 1f
+ mov 0x18(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_file_readlink)
+
+ENTRY(cloudabi_sys_file_rename)
+ mov $24, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_rename)
+
+ENTRY(cloudabi_sys_file_stat_fget)
+ mov $25, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_stat_fget)
+
+ENTRY(cloudabi_sys_file_stat_fput)
+ mov $26, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_stat_fput)
+
+ENTRY(cloudabi_sys_file_stat_get)
+ mov $27, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_stat_get)
+
+ENTRY(cloudabi_sys_file_stat_put)
+ mov $28, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_stat_put)
+
+ENTRY(cloudabi_sys_file_symlink)
+ mov $29, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_symlink)
+
+ENTRY(cloudabi_sys_file_unlink)
+ mov $30, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_file_unlink)
+
+ENTRY(cloudabi_sys_lock_unlock)
+ mov $31, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_lock_unlock)
+
+ENTRY(cloudabi_sys_mem_advise)
+ mov $32, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_advise)
+
+ENTRY(cloudabi_sys_mem_lock)
+ mov $33, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_lock)
+
+ENTRY(cloudabi_sys_mem_map)
+ mov $34, %eax
+ int $0x80
+ jc 1f
+ mov 0x20(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_mem_map)
+
+ENTRY(cloudabi_sys_mem_protect)
+ mov $35, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_protect)
+
+ENTRY(cloudabi_sys_mem_sync)
+ mov $36, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_sync)
+
+ENTRY(cloudabi_sys_mem_unlock)
+ mov $37, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_unlock)
+
+ENTRY(cloudabi_sys_mem_unmap)
+ mov $38, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_mem_unmap)
+
+ENTRY(cloudabi_sys_poll)
+ mov $39, %eax
+ int $0x80
+ jc 1f
+ mov 0x10(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_poll)
+
+ENTRY(cloudabi_sys_poll_fd)
+ mov $40, %eax
+ int $0x80
+ jc 1f
+ mov 0x1c(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_poll_fd)
+
+ENTRY(cloudabi_sys_proc_exec)
+ mov $41, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_proc_exec)
+
+ENTRY(cloudabi_sys_proc_exit)
+ mov $42, %eax
+ int $0x80
+END(cloudabi_sys_proc_exit)
+
+ENTRY(cloudabi_sys_proc_fork)
+ mov $43, %eax
+ int $0x80
+ jc 1f
+ mov 0x4(%esp), %ecx
+ mov %eax, (%ecx)
+ mov 0x8(%esp), %ecx
+ mov %edx, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_proc_fork)
+
+ENTRY(cloudabi_sys_proc_raise)
+ mov $44, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_proc_raise)
+
+ENTRY(cloudabi_sys_random_get)
+ mov $45, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_random_get)
+
+ENTRY(cloudabi_sys_sock_accept)
+ mov $46, %eax
+ int $0x80
+ jc 1f
+ mov 0xc(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_sock_accept)
+
+ENTRY(cloudabi_sys_sock_bind)
+ mov $47, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_bind)
+
+ENTRY(cloudabi_sys_sock_connect)
+ mov $48, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_connect)
+
+ENTRY(cloudabi_sys_sock_listen)
+ mov $49, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_listen)
+
+ENTRY(cloudabi_sys_sock_recv)
+ mov $50, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_recv)
+
+ENTRY(cloudabi_sys_sock_send)
+ mov $51, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_send)
+
+ENTRY(cloudabi_sys_sock_shutdown)
+ mov $52, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_shutdown)
+
+ENTRY(cloudabi_sys_sock_stat_get)
+ mov $53, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_sock_stat_get)
+
+ENTRY(cloudabi_sys_thread_create)
+ mov $54, %eax
+ int $0x80
+ jc 1f
+ mov 0x8(%esp), %ecx
+ mov %eax, (%ecx)
+ xor %eax, %eax
+1:
+ ret
+END(cloudabi_sys_thread_create)
+
+ENTRY(cloudabi_sys_thread_exit)
+ mov $55, %eax
+ int $0x80
+END(cloudabi_sys_thread_exit)
+
+ENTRY(cloudabi_sys_thread_yield)
+ mov $56, %eax
+ int $0x80
+ ret
+END(cloudabi_sys_thread_yield)
Index: head/sys/i386/cloudabi32/cloudabi32_sysvec.c
===================================================================
--- head/sys/i386/cloudabi32/cloudabi32_sysvec.c
+++ head/sys/i386/cloudabi32/cloudabi32_sysvec.c
@@ -0,0 +1,204 @@
+/*-
+ * Copyright (c) 2015-2016 Nuxi, https://nuxi.nl/
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/imgact.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/sysent.h>
+
+#include <vm/vm.h>
+#include <vm/pmap.h>
+
+#include <machine/frame.h>
+#include <machine/pcb.h>
+#include <machine/vmparam.h>
+
+#include <compat/cloudabi/cloudabi_util.h>
+
+#include <compat/cloudabi32/cloudabi32_syscall.h>
+#include <compat/cloudabi32/cloudabi32_util.h>
+
+extern const char *cloudabi32_syscallnames[];
+extern struct sysent cloudabi32_sysent[];
+
+static int
+cloudabi32_fixup_tcb(register_t **stack_base, struct image_params *imgp)
+{
+ int error;
+ uint32_t args[2];
+
+ /* Place auxiliary vector and TCB on the stack. */
+ error = cloudabi32_fixup(stack_base, imgp);
+ if (error != 0)
+ return (error);
+
+ /*
+ * On i386, the TCB is referred to by %gs:0. Reuse the empty
+ * space normally used by the return address (args[0]) to store
+ * a single element array, containing a pointer to the TCB. %gs
+ * base will point to this.
+ *
+ * Also let the first argument of the entry point (args[1])
+ * refer to the auxiliary vector, which is stored right after
+ * the TCB.
+ */
+ args[0] = (uintptr_t)*stack_base;
+ args[1] = (uintptr_t)*stack_base +
+ roundup(sizeof(cloudabi32_tcb_t), sizeof(register_t));
+ *stack_base -= howmany(sizeof(args), sizeof(register_t));
+ return (copyout(args, *stack_base, sizeof(args)));
+}
+
+static void
+cloudabi32_proc_setregs(struct thread *td, struct image_params *imgp,
+ unsigned long stack)
+{
+
+ exec_setregs(td, imgp, stack);
+ (void)cpu_set_user_tls(td, (void *)stack);
+}
+
+static int
+cloudabi32_fetch_syscall_args(struct thread *td, struct syscall_args *sa)
+{
+ struct trapframe *frame = td->td_frame;
+ int error;
+
+ /* Obtain system call number. */
+ sa->code = frame->tf_eax;
+ if (sa->code >= CLOUDABI32_SYS_MAXSYSCALL)
+ return (ENOSYS);
+ sa->callp = &cloudabi32_sysent[sa->code];
+ sa->narg = sa->callp->sy_narg;
+
+ /* Fetch system call arguments from the stack. */
+ error = copyin((void *)(frame->tf_esp + 4), sa->args,
+ sa->narg * sizeof(sa->args[0]));
+ if (error != 0)
+ return (error);
+
+ /* Default system call return values. */
+ td->td_retval[0] = 0;
+ td->td_retval[1] = frame->tf_edx;
+ return (0);
+}
+
+static void
+cloudabi32_set_syscall_retval(struct thread *td, int error)
+{
+ struct trapframe *frame = td->td_frame;
+
+ switch (error) {
+ case 0:
+ /* System call succeeded. */
+ frame->tf_eax = td->td_retval[0];
+ frame->tf_edx = td->td_retval[1];
+ frame->tf_eflags &= ~PSL_C;
+ break;
+ case ERESTART:
+ /* Restart system call. */
+ frame->tf_eip -= frame->tf_err;
+ break;
+ case EJUSTRETURN:
+ break;
+ default:
+ /* System call returned an error. */
+ frame->tf_eax = cloudabi_convert_errno(error);
+ frame->tf_eflags |= PSL_C;
+ break;
+ }
+}
+
+static void
+cloudabi32_schedtail(struct thread *td)
+{
+ struct trapframe *frame = td->td_frame;
+
+ /* Initial register values for processes returning from fork. */
+ frame->tf_eax = CLOUDABI_PROCESS_CHILD;
+ frame->tf_edx = td->td_tid;
+}
+
+int
+cloudabi32_thread_setregs(struct thread *td,
+ const cloudabi32_threadattr_t *attr, uint32_t tcb)
+{
+ stack_t stack;
+ uint32_t args[3];
+ void *frameptr;
+ int error;
+
+ /* Perform standard register initialization. */
+ stack.ss_sp = (void *)attr->stack;
+ stack.ss_size = attr->stack_size - sizeof(args);
+ cpu_set_upcall(td, (void *)attr->entry_point, NULL, &stack);
+
+ /*
+ * Copy the arguments for the thread entry point onto the stack
+ * (args[1] and args[2]). Similar to process startup, use the
+ * otherwise unused return address (args[0]) for TLS.
+ */
+ args[0] = tcb;
+ args[1] = td->td_tid;
+ args[2] = attr->argument;
+ frameptr = (void *)td->td_frame->tf_esp;
+ error = copyout(args, frameptr, sizeof(args));
+ if (error != 0)
+ return (error);
+
+ return (cpu_set_user_tls(td, frameptr));
+}
+
+static struct sysentvec cloudabi32_elf_sysvec = {
+ .sv_size = CLOUDABI32_SYS_MAXSYSCALL,
+ .sv_table = cloudabi32_sysent,
+ .sv_fixup = cloudabi32_fixup_tcb,
+ .sv_name = "CloudABI ELF32",
+ .sv_coredump = elf32_coredump,
+ .sv_pagesize = PAGE_SIZE,
+ .sv_minuser = VM_MIN_ADDRESS,
+ .sv_maxuser = VM_MAXUSER_ADDRESS,
+ .sv_stackprot = VM_PROT_READ | VM_PROT_WRITE,
+ .sv_copyout_strings = cloudabi32_copyout_strings,
+ .sv_setregs = cloudabi32_proc_setregs,
+ .sv_flags = SV_ABI_CLOUDABI | SV_CAPSICUM | SV_IA32 | SV_ILP32,
+ .sv_set_syscall_retval = cloudabi32_set_syscall_retval,
+ .sv_fetch_syscall_args = cloudabi32_fetch_syscall_args,
+ .sv_syscallnames = cloudabi32_syscallnames,
+ .sv_schedtail = cloudabi32_schedtail,
+};
+
+INIT_SYSENTVEC(elf_sysvec, &cloudabi32_elf_sysvec);
+
+Elf32_Brandinfo cloudabi32_brand = {
+ .brand = ELFOSABI_CLOUDABI,
+ .machine = EM_386,
+ .sysvec = &cloudabi32_elf_sysvec,
+ .compat_3_brand = "CloudABI",
+};
Index: head/sys/i386/conf/NOTES
===================================================================
--- head/sys/i386/conf/NOTES
+++ head/sys/i386/conf/NOTES
@@ -973,6 +973,9 @@
# Emulate spx device for client side of SVR3 local X interface
options SPX_HACK
+# Enable 32-bit runtime support for CloudABI binaries.
+options COMPAT_CLOUDABI32
+
# Enable Linux ABI emulation
options COMPAT_LINUX

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