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authormarcel <marcel@FreeBSD.org>2000-08-22 01:46:50 +0000
committermarcel <marcel@FreeBSD.org>2000-08-22 01:46:50 +0000
commitcf97f9d3c1dffe0dd1fdccad000cba9c6f161698 (patch)
tree7b5a9da5c57b4728b430590928d64eda59ee26ab /sys/compat/linux
parente222aa8f3397b406567fbc9548a95470b87058be (diff)
downloadFreeBSD-src-cf97f9d3c1dffe0dd1fdccad000cba9c6f161698.zip
FreeBSD-src-cf97f9d3c1dffe0dd1fdccad000cba9c6f161698.tar.gz
Update include directives.
Move linux_select to MD code (i386 compat. syscall). Move linux_fork, linux_vfork, linux_clone, linux_mmap, linux_pipe, linux_ioperm, linux_iopl and linux_modify_ldt to MD code.
Diffstat (limited to 'sys/compat/linux')
-rw-r--r--sys/compat/linux/linux_misc.c386
1 files changed, 5 insertions, 381 deletions
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index dcbff98..e69ca20 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -60,13 +60,13 @@
#include <machine/sysarch.h>
#include <machine/segments.h>
-#include <i386/linux/linux.h>
-#include <i386/linux/linux_proto.h>
-#include <i386/linux/linux_util.h>
-#include <i386/linux/linux_mib.h>
-
#include <posix4/sched.h>
+#include <machine/../linux/linux.h>
+#include <machine/../linux/linux_proto.h>
+#include <compat/linux/linux_mib.h>
+#include <compat/linux/linux_util.h>
+
#define BSD_TO_LINUX_SIGNAL(sig) \
(((sig) <= LINUX_SIGTBLSZ) ? bsd_to_linux_signal[_SIG_IDX(sig)] : sig)
@@ -419,38 +419,6 @@ cleanup:
return error;
}
-/* XXX move */
-struct linux_select_argv {
- int nfds;
- fd_set *readfds;
- fd_set *writefds;
- fd_set *exceptfds;
- struct timeval *timeout;
-};
-
-int
-linux_select(struct proc *p, struct linux_select_args *args)
-{
- struct linux_select_argv linux_args;
- struct linux_newselect_args newsel;
- int error;
-
-#ifdef SELECT_DEBUG
- printf("Linux-emul(%ld): select(%x)\n", (long)p->p_pid, args->ptr);
-#endif
- if ((error = copyin((caddr_t)args->ptr, (caddr_t)&linux_args,
- sizeof(linux_args))))
- return error;
-
- newsel.nfds = linux_args.nfds;
- newsel.readfds = linux_args.readfds;
- newsel.writefds = linux_args.writefds;
- newsel.exceptfds = linux_args.exceptfds;
- newsel.timeout = linux_args.timeout;
-
- return linux_newselect(p, &newsel);
-}
-
int
linux_newselect(struct proc *p, struct linux_newselect_args *args)
{
@@ -568,208 +536,6 @@ linux_getpgid(struct proc *p, struct linux_getpgid_args *args)
return 0;
}
-int
-linux_fork(struct proc *p, struct linux_fork_args *args)
-{
- int error;
-
-#ifdef DEBUG
- printf("Linux-emul(%ld): fork()\n", (long)p->p_pid);
-#endif
- if ((error = fork(p, (struct fork_args *)args)) != 0)
- return error;
- if (p->p_retval[1] == 1)
- p->p_retval[0] = 0;
- return 0;
-}
-
-int
-linux_vfork(struct proc *p, struct linux_vfork_args *args)
-{
- int error;
-
-#ifdef DEBUG
- printf("Linux-emul(%ld): vfork()\n", (long)p->p_pid);
-#endif
-
- if ((error = vfork(p, (struct vfork_args *)args)) != 0)
- return error;
- /* Are we the child? */
- if (p->p_retval[1] == 1)
- p->p_retval[0] = 0;
- return 0;
-}
-
-#define CLONE_VM 0x100
-#define CLONE_FS 0x200
-#define CLONE_FILES 0x400
-#define CLONE_SIGHAND 0x800
-#define CLONE_PID 0x1000
-
-int
-linux_clone(struct proc *p, struct linux_clone_args *args)
-{
- int error, ff = RFPROC;
- struct proc *p2;
- int exit_signal;
- vm_offset_t start;
- struct rfork_args rf_args;
-
-#ifdef DEBUG
- if (args->flags & CLONE_PID)
- printf("linux_clone(%ld): CLONE_PID not yet supported\n",
- (long)p->p_pid);
- printf("linux_clone(%ld): invoked with flags %x and stack %x\n",
- (long)p->p_pid, (unsigned int)args->flags,
- (unsigned int)args->stack);
-#endif
-
- if (!args->stack)
- return (EINVAL);
-
- exit_signal = args->flags & 0x000000ff;
- if (exit_signal >= LINUX_NSIG)
- return EINVAL;
-
- if (exit_signal <= LINUX_SIGTBLSZ)
- exit_signal = linux_to_bsd_signal[_SIG_IDX(exit_signal)];
-
- /* RFTHREAD probably not necessary here, but it shouldn't hurt either */
- ff |= RFTHREAD;
-
- if (args->flags & CLONE_VM)
- ff |= RFMEM;
- if (args->flags & CLONE_SIGHAND)
- ff |= RFSIGSHARE;
- if (!(args->flags & CLONE_FILES))
- ff |= RFFDG;
-
- error = 0;
- start = 0;
-
- rf_args.flags = ff;
- if ((error = rfork(p, &rf_args)) != 0)
- return error;
-
- p2 = pfind(p->p_retval[0]);
- if (p2 == 0)
- return ESRCH;
-
- p2->p_sigparent = exit_signal;
- p2->p_md.md_regs->tf_esp = (unsigned int)args->stack;
-
-#ifdef DEBUG
- printf ("linux_clone(%ld): successful rfork to %ld\n",
- (long)p->p_pid, (long)p2->p_pid);
-#endif
- return 0;
-}
-
-/* XXX move */
-struct linux_mmap_argv {
- linux_caddr_t addr;
- int len;
- int prot;
- int flags;
- int fd;
- int pos;
-};
-
-#define STACK_SIZE (2 * 1024 * 1024)
-#define GUARD_SIZE (4 * PAGE_SIZE)
-int
-linux_mmap(struct proc *p, struct linux_mmap_args *args)
-{
- struct mmap_args /* {
- caddr_t addr;
- size_t len;
- int prot;
- int flags;
- int fd;
- long pad;
- off_t pos;
- } */ bsd_args;
- int error;
- struct linux_mmap_argv linux_args;
-
- if ((error = copyin((caddr_t)args->ptr, (caddr_t)&linux_args,
- sizeof(linux_args))))
- return error;
-#ifdef DEBUG
- printf("Linux-emul(%ld): mmap(%p, %d, %d, 0x%08x, %d, %d)",
- (long)p->p_pid, (void *)linux_args.addr, linux_args.len,
- linux_args.prot, linux_args.flags, linux_args.fd, linux_args.pos);
-#endif
- bsd_args.flags = 0;
- if (linux_args.flags & LINUX_MAP_SHARED)
- bsd_args.flags |= MAP_SHARED;
- if (linux_args.flags & LINUX_MAP_PRIVATE)
- bsd_args.flags |= MAP_PRIVATE;
- if (linux_args.flags & LINUX_MAP_FIXED)
- bsd_args.flags |= MAP_FIXED;
- if (linux_args.flags & LINUX_MAP_ANON)
- bsd_args.flags |= MAP_ANON;
- if (linux_args.flags & LINUX_MAP_GROWSDOWN) {
- bsd_args.flags |= MAP_STACK;
-
- /* The linux MAP_GROWSDOWN option does not limit auto
- * growth of the region. Linux mmap with this option
- * takes as addr the inital BOS, and as len, the initial
- * region size. It can then grow down from addr without
- * limit. However, linux threads has an implicit internal
- * limit to stack size of STACK_SIZE. Its just not
- * enforced explicitly in linux. But, here we impose
- * a limit of (STACK_SIZE - GUARD_SIZE) on the stack
- * region, since we can do this with our mmap.
- *
- * Our mmap with MAP_STACK takes addr as the maximum
- * downsize limit on BOS, and as len the max size of
- * the region. It them maps the top SGROWSIZ bytes,
- * and autgrows the region down, up to the limit
- * in addr.
- *
- * If we don't use the MAP_STACK option, the effect
- * of this code is to allocate a stack region of a
- * fixed size of (STACK_SIZE - GUARD_SIZE).
- */
-
- /* This gives us TOS */
- bsd_args.addr = linux_args.addr + linux_args.len;
-
- /* This gives us our maximum stack size */
- if (linux_args.len > STACK_SIZE - GUARD_SIZE)
- bsd_args.len = linux_args.len;
- else
- bsd_args.len = STACK_SIZE - GUARD_SIZE;
-
- /* This gives us a new BOS. If we're using VM_STACK, then
- * mmap will just map the top SGROWSIZ bytes, and let
- * the stack grow down to the limit at BOS. If we're
- * not using VM_STACK we map the full stack, since we
- * don't have a way to autogrow it.
- */
- bsd_args.addr -= bsd_args.len;
-
- } else {
- bsd_args.addr = linux_args.addr;
- bsd_args.len = linux_args.len;
- }
-
- bsd_args.prot = linux_args.prot | PROT_READ; /* always required */
- if (linux_args.flags & LINUX_MAP_ANON)
- bsd_args.fd = -1;
- else
- bsd_args.fd = linux_args.fd;
- bsd_args.pos = linux_args.pos;
- bsd_args.pad = 0;
-#ifdef DEBUG
- printf("-> (%p, %d, %d, 0x%08x, %d, %d)\n",
- (void *)bsd_args.addr, bsd_args.len,
- bsd_args.prot, bsd_args.flags, bsd_args.fd, (int)bsd_args.pos);
-#endif
- return mmap(p, &bsd_args);
-}
-
int
linux_mremap(struct proc *p, struct linux_mremap_args *args)
{
@@ -815,33 +581,6 @@ linux_msync(struct proc *p, struct linux_msync_args *args)
}
int
-linux_pipe(struct proc *p, struct linux_pipe_args *args)
-{
- int error;
- int reg_edx;
-
-#ifdef DEBUG
- printf("Linux-emul(%ld): pipe(*)\n", (long)p->p_pid);
-#endif
- reg_edx = p->p_retval[1];
- error = pipe(p, 0);
- if (error) {
- p->p_retval[1] = reg_edx;
- return error;
- }
-
- error = copyout(p->p_retval, args->pipefds, 2*sizeof(int));
- if (error) {
- p->p_retval[1] = reg_edx;
- return error;
- }
-
- p->p_retval[1] = reg_edx;
- p->p_retval[0] = 0;
- return 0;
-}
-
-int
linux_time(struct proc *p, struct linux_time_args *args)
{
struct timeval tv;
@@ -1144,39 +883,6 @@ linux_getitimer(struct proc *p, struct linux_getitimer_args *args)
}
int
-linux_ioperm(struct proc *p, struct linux_ioperm_args *args)
-{
- struct sysarch_args sa;
- struct i386_ioperm_args *iia;
- caddr_t sg;
-
- sg = stackgap_init();
- iia = stackgap_alloc(&sg, sizeof(struct i386_ioperm_args));
- iia->start = args->start;
- iia->length = args->length;
- iia->enable = args->enable;
- sa.op = I386_SET_IOPERM;
- sa.parms = (char *)iia;
- return sysarch(p, &sa);
-}
-
-int
-linux_iopl(struct proc *p, struct linux_iopl_args *args)
-{
- int error;
-
- if (args->level < 0 || args->level > 3)
- return (EINVAL);
- if ((error = suser(p)) != 0)
- return (error);
- if (securelevel > 0)
- return (EPERM);
- p->p_md.md_regs->tf_eflags = (p->p_md.md_regs->tf_eflags & ~PSL_IOPL) |
- (args->level * (PSL_IOPL / 3));
- return (0);
-}
-
-int
linux_nice(struct proc *p, struct linux_nice_args *args)
{
struct setpriority_args bsd_args;
@@ -1386,85 +1092,3 @@ linux_sched_getscheduler(p, uap)
return error;
}
-
-struct linux_descriptor {
- unsigned int entry_number;
- unsigned long base_addr;
- unsigned int limit;
- unsigned int seg_32bit:1;
- unsigned int contents:2;
- unsigned int read_exec_only:1;
- unsigned int limit_in_pages:1;
- unsigned int seg_not_present:1;
- unsigned int useable:1;
-};
-
-int
-linux_modify_ldt(p, uap)
- struct proc *p;
- struct linux_modify_ldt_args *uap;
-{
- int error;
- caddr_t sg;
- struct sysarch_args args;
- struct i386_ldt_args *ldt;
- struct linux_descriptor ld;
- union descriptor *desc;
-
- sg = stackgap_init();
-
- if (uap->ptr == NULL)
- return (EINVAL);
-
- switch (uap->func) {
- case 0x00: /* read_ldt */
- ldt = stackgap_alloc(&sg, sizeof(*ldt));
- ldt->start = 0;
- ldt->descs = uap->ptr;
- ldt->num = uap->bytecount / sizeof(union descriptor);
- args.op = I386_GET_LDT;
- args.parms = (char*)ldt;
- error = sysarch(p, &args);
- p->p_retval[0] *= sizeof(union descriptor);
- break;
- case 0x01: /* write_ldt */
- case 0x11: /* write_ldt */
- if (uap->bytecount != sizeof(ld))
- return (EINVAL);
-
- error = copyin(uap->ptr, &ld, sizeof(ld));
- if (error)
- return (error);
-
- ldt = stackgap_alloc(&sg, sizeof(*ldt));
- desc = stackgap_alloc(&sg, sizeof(*desc));
- ldt->start = ld.entry_number;
- ldt->descs = desc;
- ldt->num = 1;
- desc->sd.sd_lolimit = (ld.limit & 0x0000ffff);
- desc->sd.sd_hilimit = (ld.limit & 0x000f0000) >> 16;
- desc->sd.sd_lobase = (ld.base_addr & 0x00ffffff);
- desc->sd.sd_hibase = (ld.base_addr & 0xff000000) >> 24;
- desc->sd.sd_type = SDT_MEMRO | ((ld.read_exec_only ^ 1) << 1) |
- (ld.contents << 2);
- desc->sd.sd_dpl = 3;
- desc->sd.sd_p = (ld.seg_not_present ^ 1);
- desc->sd.sd_xx = 0;
- desc->sd.sd_def32 = ld.seg_32bit;
- desc->sd.sd_gran = ld.limit_in_pages;
- args.op = I386_SET_LDT;
- args.parms = (char*)ldt;
- error = sysarch(p, &args);
- break;
- default:
- error = EINVAL;
- break;
- }
-
- if (error == EOPNOTSUPP) {
- printf("linux: modify_ldt needs kernel option USER_LDT\n");
- error = ENOSYS;
- }
-
- return (error);
-}
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