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-rw-r--r--arch/um/.gitignore3
-rw-r--r--arch/um/drivers/line.c4
-rw-r--r--arch/um/drivers/mconsole_kern.c49
-rw-r--r--arch/um/drivers/ubd_kern.c4
-rw-r--r--arch/um/include/asm/dma-mapping.h8
-rw-r--r--arch/um/include/asm/pgtable.h2
-rw-r--r--arch/um/include/asm/ptrace-generic.h2
-rw-r--r--arch/um/kernel/ptrace.c70
-rw-r--r--arch/um/kernel/syscall.c45
-rw-r--r--arch/um/sys-i386/Makefile2
-rw-r--r--arch/um/sys-i386/asm/elf.h43
-rw-r--r--arch/um/sys-i386/elfcore.c83
-rw-r--r--arch/um/sys-i386/shared/sysdep/syscalls.h2
-rw-r--r--arch/um/sys-i386/sys_call_table.S2
-rw-r--r--arch/um/sys-i386/syscalls.c137
-rw-r--r--arch/um/sys-x86_64/Makefile3
-rw-r--r--arch/um/sys-x86_64/syscall_table.c5
-rw-r--r--arch/um/sys-x86_64/syscalls.c14
18 files changed, 132 insertions, 346 deletions
diff --git a/arch/um/.gitignore b/arch/um/.gitignore
new file mode 100644
index 000000000000..a73d3a1cc746
--- /dev/null
+++ b/arch/um/.gitignore
@@ -0,0 +1,3 @@
+kernel/config.c
+kernel/config.tmp
+kernel/vmlinux.lds
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index cf8a97f34518..64cda95f59ca 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -18,10 +18,10 @@ static irqreturn_t line_interrupt(int irq, void *data)
{
struct chan *chan = data;
struct line *line = chan->line;
- struct tty_struct *tty = line->tty;
+ struct tty_struct *tty;
if (line)
- chan_interrupt(&line->chan_list, &line->task, tty, irq);
+ chan_interrupt(&line->chan_list, &line->task, line->tty, irq);
return IRQ_HANDLED;
}
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 51069245b79a..de317d0c3294 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -125,50 +125,36 @@ void mconsole_log(struct mc_request *req)
void mconsole_proc(struct mc_request *req)
{
struct nameidata nd;
- struct file_system_type *proc;
- struct super_block *super;
+ struct vfsmount *mnt = current->nsproxy->pid_ns->proc_mnt;
struct file *file;
int n, err;
char *ptr = req->request.data, *buf;
+ mm_segment_t old_fs = get_fs();
ptr += strlen("proc");
ptr = skip_spaces(ptr);
- proc = get_fs_type("proc");
- if (proc == NULL) {
- mconsole_reply(req, "procfs not registered", 1, 0);
+ err = vfs_path_lookup(mnt->mnt_root, mnt, ptr, LOOKUP_FOLLOW, &nd);
+ if (err) {
+ mconsole_reply(req, "Failed to look up file", 1, 0);
goto out;
}
- super = (*proc->get_sb)(proc, 0, NULL, NULL);
- put_filesystem(proc);
- if (super == NULL) {
- mconsole_reply(req, "Failed to get procfs superblock", 1, 0);
+ err = may_open(&nd.path, MAY_READ, O_RDONLY);
+ if (result) {
+ mconsole_reply(req, "Failed to open file", 1, 0);
+ path_put(&nd.path);
goto out;
}
- up_write(&super->s_umount);
-
- nd.path.dentry = super->s_root;
- nd.path.mnt = NULL;
- nd.flags = O_RDONLY + 1;
- nd.last_type = LAST_ROOT;
-
- /* START: it was experienced that the stability problems are closed
- * if commenting out these two calls + the below read cycle. To
- * make UML crash again, it was enough to readd either one.*/
- err = link_path_walk(ptr, &nd);
- if (err) {
- mconsole_reply(req, "Failed to look up file", 1, 0);
- goto out_kill;
- }
file = dentry_open(nd.path.dentry, nd.path.mnt, O_RDONLY,
current_cred());
+ err = PTR_ERR(file);
if (IS_ERR(file)) {
mconsole_reply(req, "Failed to open file", 1, 0);
- goto out_kill;
+ path_put(&nd.path);
+ goto out;
}
- /*END*/
buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (buf == NULL) {
@@ -176,10 +162,13 @@ void mconsole_proc(struct mc_request *req)
goto out_fput;
}
- if ((file->f_op != NULL) && (file->f_op->read != NULL)) {
+ if (file->f_op->read) {
do {
- n = (*file->f_op->read)(file, buf, PAGE_SIZE - 1,
- &file->f_pos);
+ loff_t pos;
+ set_fs(KERNEL_DS);
+ n = vfs_read(file, buf, PAGE_SIZE - 1, &pos);
+ file_pos_write(file, pos);
+ set_fs(old_fs);
if (n >= 0) {
buf[n] = '\0';
mconsole_reply(req, buf, 0, (n > 0));
@@ -197,8 +186,6 @@ void mconsole_proc(struct mc_request *req)
kfree(buf);
out_fput:
fput(file);
- out_kill:
- deactivate_super(super);
out: ;
}
#endif
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 5ff554677f40..c1ff6903b622 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -747,7 +747,7 @@ static int ubd_open_dev(struct ubd *ubd_dev)
ubd_dev->fd = fd;
if(ubd_dev->cow.file != NULL){
- blk_queue_max_sectors(ubd_dev->queue, 8 * sizeof(long));
+ blk_queue_max_hw_sectors(ubd_dev->queue, 8 * sizeof(long));
err = -ENOMEM;
ubd_dev->cow.bitmap = vmalloc(ubd_dev->cow.bitmap_len);
@@ -849,7 +849,7 @@ static int ubd_add(int n, char **error_out)
}
ubd_dev->queue->queuedata = ubd_dev;
- blk_queue_max_hw_segments(ubd_dev->queue, MAX_SG);
+ blk_queue_max_segments(ubd_dev->queue, MAX_SG);
err = ubd_disk_register(UBD_MAJOR, ubd_dev->size, n, &ubd_gendisk[n]);
if(err){
*error_out = "Failed to register device";
diff --git a/arch/um/include/asm/dma-mapping.h b/arch/um/include/asm/dma-mapping.h
index 378de4bbf49f..b948c14a7867 100644
--- a/arch/um/include/asm/dma-mapping.h
+++ b/arch/um/include/asm/dma-mapping.h
@@ -104,14 +104,6 @@ dma_get_cache_alignment(void)
}
static inline void
-dma_sync_single_range(struct device *dev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- BUG();
-}
-
-static inline void
dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 9ce3f165111a..a9f7251b4a8d 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -345,7 +345,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
struct mm_struct;
extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
-#define update_mmu_cache(vma,address,pte) do ; while (0)
+#define update_mmu_cache(vma,address,ptep) do ; while (0)
/* Encode and de-code a swap entry */
#define __swp_type(x) (((x).val >> 4) & 0x3f)
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h
index 6c8899013c92..2cd899f75a3c 100644
--- a/arch/um/include/asm/ptrace-generic.h
+++ b/arch/um/include/asm/ptrace-generic.h
@@ -16,6 +16,8 @@ struct pt_regs {
struct uml_pt_regs regs;
};
+#define arch_has_single_step() (1)
+
#define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS }
#define PT_REGS_IP(r) UPT_IP(&(r)->regs)
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 8e3d69e4fcb5..484509948ee9 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -12,16 +12,25 @@
#endif
#include "skas_ptrace.h"
-static inline void set_singlestepping(struct task_struct *child, int on)
+
+
+void user_enable_single_step(struct task_struct *child)
{
- if (on)
- child->ptrace |= PT_DTRACE;
- else
- child->ptrace &= ~PT_DTRACE;
+ child->ptrace |= PT_DTRACE;
child->thread.singlestep_syscall = 0;
#ifdef SUBARCH_SET_SINGLESTEPPING
- SUBARCH_SET_SINGLESTEPPING(child, on);
+ SUBARCH_SET_SINGLESTEPPING(child, 1);
+#endif
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+ child->ptrace &= ~PT_DTRACE;
+ child->thread.singlestep_syscall = 0;
+
+#ifdef SUBARCH_SET_SINGLESTEPPING
+ SUBARCH_SET_SINGLESTEPPING(child, 0);
#endif
}
@@ -30,7 +39,7 @@ static inline void set_singlestepping(struct task_struct *child, int on)
*/
void ptrace_disable(struct task_struct *child)
{
- set_singlestepping(child,0);
+ user_disable_single_step(child);
}
extern int peek_user(struct task_struct * child, long addr, long data);
@@ -69,53 +78,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
ret = -EIO;
break;
- /* continue and stop at next (return from) syscall */
- case PTRACE_SYSCALL:
- /* restart after signal. */
- case PTRACE_CONT: {
- ret = -EIO;
- if (!valid_signal(data))
- break;
-
- set_singlestepping(child, 0);
- if (request == PTRACE_SYSCALL)
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- else clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
- }
-
-/*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL: {
- ret = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
-
- set_singlestepping(child, 0);
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
- }
-
- case PTRACE_SINGLESTEP: { /* set the trap flag. */
- ret = -EIO;
- if (!valid_signal(data))
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- set_singlestepping(child, 1);
- child->exit_code = data;
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
- }
-
#ifdef PTRACE_GETREGS
case PTRACE_GETREGS: { /* Get all gp regs from the child. */
if (!access_ok(VERIFY_WRITE, p, MAX_REG_OFFSET)) {
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index cccab850c27e..4393173923f5 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -51,51 +51,6 @@ long old_mmap(unsigned long addr, unsigned long len,
return err;
}
-long sys_uname(struct old_utsname __user * name)
-{
- long err;
- if (!name)
- return -EFAULT;
- down_read(&uts_sem);
- err = copy_to_user(name, utsname(), sizeof (*name));
- up_read(&uts_sem);
- return err?-EFAULT:0;
-}
-
-long sys_olduname(struct oldold_utsname __user * name)
-{
- long error;
-
- if (!name)
- return -EFAULT;
- if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
- return -EFAULT;
-
- down_read(&uts_sem);
-
- error = __copy_to_user(&name->sysname, &utsname()->sysname,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->nodename, &utsname()->nodename,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->release, &utsname()->release,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->release + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->version, &utsname()->version,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->version + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->machine, &utsname()->machine,
- __OLD_UTS_LEN);
- error |= __put_user(0, name->machine + __OLD_UTS_LEN);
-
- up_read(&uts_sem);
-
- error = error ? -EFAULT : 0;
-
- return error;
-}
-
int kernel_execve(const char *filename, char *const argv[], char *const envp[])
{
mm_segment_t fs;
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index 1b549bca4645..804b28dd0328 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -6,6 +6,8 @@ obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
ptrace_user.o setjmp.o signal.o stub.o stub_segv.o syscalls.o sysrq.o \
sys_call_table.o tls.o
+obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+
subarch-obj-y = lib/semaphore_32.o lib/string_32.o
subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
subarch-obj-$(CONFIG_MODULES) += kernel/module.o
diff --git a/arch/um/sys-i386/asm/elf.h b/arch/um/sys-i386/asm/elf.h
index 770885472ed4..e64cd41d7bab 100644
--- a/arch/um/sys-i386/asm/elf.h
+++ b/arch/um/sys-i386/asm/elf.h
@@ -116,47 +116,4 @@ do { \
} \
} while (0)
-/*
- * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
- * extra segments containing the vsyscall DSO contents. Dumping its
- * contents makes post-mortem fully interpretable later without matching up
- * the same kernel and hardware config to see what PC values meant.
- * Dumping its extra ELF program headers includes all the other information
- * a debugger needs to easily find how the vsyscall DSO was being used.
- */
-#define ELF_CORE_EXTRA_PHDRS \
- (vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0 )
-
-#define ELF_CORE_WRITE_EXTRA_PHDRS \
-if ( vsyscall_ehdr ) { \
- const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
- const struct elf_phdr *const phdrp = \
- (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
- int i; \
- Elf32_Off ofs = 0; \
- for (i = 0; i < ehdrp->e_phnum; ++i) { \
- struct elf_phdr phdr = phdrp[i]; \
- if (phdr.p_type == PT_LOAD) { \
- ofs = phdr.p_offset = offset; \
- offset += phdr.p_filesz; \
- } \
- else \
- phdr.p_offset += ofs; \
- phdr.p_paddr = 0; /* match other core phdrs */ \
- DUMP_WRITE(&phdr, sizeof(phdr)); \
- } \
-}
-#define ELF_CORE_WRITE_EXTRA_DATA \
-if ( vsyscall_ehdr ) { \
- const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
- const struct elf_phdr *const phdrp = \
- (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
- int i; \
- for (i = 0; i < ehdrp->e_phnum; ++i) { \
- if (phdrp[i].p_type == PT_LOAD) \
- DUMP_WRITE((void *) phdrp[i].p_vaddr, \
- phdrp[i].p_filesz); \
- } \
-}
-
#endif
diff --git a/arch/um/sys-i386/elfcore.c b/arch/um/sys-i386/elfcore.c
new file mode 100644
index 000000000000..6bb49b687c97
--- /dev/null
+++ b/arch/um/sys-i386/elfcore.c
@@ -0,0 +1,83 @@
+#include <linux/elf.h>
+#include <linux/coredump.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+
+#include <asm/elf.h>
+
+
+Elf32_Half elf_core_extra_phdrs(void)
+{
+ return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
+}
+
+int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
+ unsigned long limit)
+{
+ if ( vsyscall_ehdr ) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *) vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+ int i;
+ Elf32_Off ofs = 0;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i) {
+ struct elf_phdr phdr = phdrp[i];
+
+ if (phdr.p_type == PT_LOAD) {
+ ofs = phdr.p_offset = offset;
+ offset += phdr.p_filesz;
+ } else {
+ phdr.p_offset += ofs;
+ }
+ phdr.p_paddr = 0; /* match other core phdrs */
+ *size += sizeof(phdr);
+ if (*size > limit
+ || !dump_write(file, &phdr, sizeof(phdr)))
+ return 0;
+ }
+ }
+ return 1;
+}
+
+int elf_core_write_extra_data(struct file *file, size_t *size,
+ unsigned long limit)
+{
+ if ( vsyscall_ehdr ) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *) vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+ int i;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i) {
+ if (phdrp[i].p_type == PT_LOAD) {
+ void *addr = (void *) phdrp[i].p_vaddr;
+ size_t filesz = phdrp[i].p_filesz;
+
+ *size += filesz;
+ if (*size > limit
+ || !dump_write(file, addr, filesz))
+ return 0;
+ }
+ }
+ }
+ return 1;
+}
+
+size_t elf_core_extra_data_size(void)
+{
+ if ( vsyscall_ehdr ) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *)vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+ int i;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i)
+ if (phdrp[i].p_type == PT_LOAD)
+ return (size_t) phdrp[i].p_filesz;
+ }
+ return 0;
+}
diff --git a/arch/um/sys-i386/shared/sysdep/syscalls.h b/arch/um/sys-i386/shared/sysdep/syscalls.h
index e7787679e317..05cb796aecb5 100644
--- a/arch/um/sys-i386/shared/sysdep/syscalls.h
+++ b/arch/um/sys-i386/shared/sysdep/syscalls.h
@@ -13,8 +13,6 @@ typedef long syscall_handler_t(struct pt_regs);
*/
extern syscall_handler_t sys_rt_sigaction;
-extern syscall_handler_t old_mmap_i386;
-
extern syscall_handler_t *sys_call_table[];
#define EXECUTE_SYSCALL(syscall, regs) \
diff --git a/arch/um/sys-i386/sys_call_table.S b/arch/um/sys-i386/sys_call_table.S
index c6260dd6ebb9..de274071455d 100644
--- a/arch/um/sys-i386/sys_call_table.S
+++ b/arch/um/sys-i386/sys_call_table.S
@@ -7,7 +7,7 @@
#define sys_vm86old sys_ni_syscall
#define sys_vm86 sys_ni_syscall
-#define old_mmap old_mmap_i386
+#define old_mmap sys_old_mmap
#define ptregs_fork sys_fork
#define ptregs_execve sys_execve
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c
index 857ca0b3bdef..70ca357393b8 100644
--- a/arch/um/sys-i386/syscalls.c
+++ b/arch/um/sys-i386/syscalls.c
@@ -12,57 +12,6 @@
#include "asm/unistd.h"
/*
- * Perform the select(nd, in, out, ex, tv) and mmap() system
- * calls. Linux/i386 didn't use to be able to handle more than
- * 4 system call parameters, so these system calls used a memory
- * block for parameter passing..
- */
-
-struct mmap_arg_struct {
- unsigned long addr;
- unsigned long len;
- unsigned long prot;
- unsigned long flags;
- unsigned long fd;
- unsigned long offset;
-};
-
-extern int old_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long offset);
-
-long old_mmap_i386(struct mmap_arg_struct __user *arg)
-{
- struct mmap_arg_struct a;
- int err = -EFAULT;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- goto out;
-
- err = old_mmap(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
- out:
- return err;
-}
-
-struct sel_arg_struct {
- unsigned long n;
- fd_set __user *inp;
- fd_set __user *outp;
- fd_set __user *exp;
- struct timeval __user *tvp;
-};
-
-long old_select(struct sel_arg_struct __user *arg)
-{
- struct sel_arg_struct a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- return -EFAULT;
- /* sys_select() does the appropriate kernel locking */
- return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
-}
-
-/*
* The prototype on i386 is:
*
* int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr)
@@ -85,92 +34,6 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp,
return ret;
}
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-long sys_ipc (uint call, int first, int second,
- int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
- case SEMOP:
- return sys_semtimedop(first, (struct sembuf __user *) ptr,
- second, NULL);
- case SEMTIMEDOP:
- return sys_semtimedop(first, (struct sembuf __user *) ptr,
- second,
- (const struct timespec __user *) fifth);
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void __user * __user *) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
-
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) ptr,
- second, third);
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- if (!ptr)
- return -EINVAL;
-
- if (copy_from_user(&tmp,
- (struct ipc_kludge *) ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- panic("msgrcv with version != 0");
- return sys_msgrcv (first,
- (struct msgbuf *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second, (struct msqid_ds *) ptr);
-
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = do_shmat (first, (char *) ptr, second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong *) third);
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- return -EINVAL;
- return do_shmat (first, (char *) ptr, second, (ulong *) third);
- }
- case SHMDT:
- return sys_shmdt ((char *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
- default:
- return -ENOSYS;
- }
-}
-
long sys_sigaction(int sig, const struct old_sigaction __user *act,
struct old_sigaction __user *oact)
{
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index 2201e9c20e4a..c1ea9eb04466 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -8,7 +8,8 @@ obj-y = bug.o bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \
setjmp.o signal.o stub.o stub_segv.o syscalls.o syscall_table.o \
sysrq.o ksyms.o tls.o
-subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o
+subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o \
+ lib/rwsem_64.o
subarch-obj-$(CONFIG_MODULES) += kernel/module.o
ldt-y = ../sys-i386/ldt.o
diff --git a/arch/um/sys-x86_64/syscall_table.c b/arch/um/sys-x86_64/syscall_table.c
index dd21d69715e6..47d469e7e7ce 100644
--- a/arch/um/sys-x86_64/syscall_table.c
+++ b/arch/um/sys-x86_64/syscall_table.c
@@ -26,11 +26,6 @@
/* On UML we call it this way ("old" means it's not mmap2) */
#define sys_mmap old_mmap
-/*
- * On x86-64 sys_uname is actually sys_newuname plus a compatibility trick.
- * See arch/x86_64/kernel/sys_x86_64.c
- */
-#define sys_uname sys_uname64
#define stub_clone sys_clone
#define stub_fork sys_fork
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index f1199fd34d38..f3d82bb6e15a 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -12,20 +12,6 @@
#include "asm/uaccess.h"
#include "os.h"
-asmlinkage long sys_uname64(struct new_utsname __user * name)
-{
- int err;
-
- down_read(&uts_sem);
- err = copy_to_user(name, utsname(), sizeof (*name));
- up_read(&uts_sem);
-
- if (personality(current->personality) == PER_LINUX32)
- err |= copy_to_user(&name->machine, "i686", 5);
-
- return err ? -EFAULT : 0;
-}
-
long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
{
unsigned long *ptr = addr, tmp;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-01 04:07:59 +0300