* [uml-devel] [PATCH 2/11] UML - Move libc-dependent utility procedures
@ 2006-01-15 21:39 Jeff Dike
0 siblings, 0 replies; only message in thread
From: Jeff Dike @ 2006-01-15 21:39 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel, user-mode-linux-devel, Gennady Sharapov
From: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
The serial UML OS-abstraction layer patch (um/kernel dir).
This moves all systemcalls from user_util.c file under os-Linux dir
Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: linux-2.6.15-mm/arch/um/drivers/fd.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/drivers/fd.c 2006-01-06 21:23:35.000000000 -0500
+++ linux-2.6.15-mm/arch/um/drivers/fd.c 2006-01-06 21:24:14.000000000 -0500
@@ -11,6 +11,7 @@
#include "user.h"
#include "user_util.h"
#include "chan_user.h"
+#include "os.h"
struct fd_chan {
int fd;
Index: linux-2.6.15-mm/arch/um/include/os.h
===================================================================
--- linux-2.6.15-mm.orig/arch/um/include/os.h 2006-01-06 21:24:14.000000000 -0500
+++ linux-2.6.15-mm/arch/um/include/os.h 2006-01-06 21:46:20.000000000 -0500
@@ -195,6 +195,8 @@ extern unsigned long long os_usecs(void)
/* tt.c
* for tt mode only (will be deleted in future...)
*/
+extern void stop(void);
+extern int wait_for_stop(int pid, int sig, int cont_type, void *relay);
extern int protect_memory(unsigned long addr, unsigned long len,
int r, int w, int x, int must_succeed);
extern void forward_pending_sigio(int target);
@@ -235,4 +237,12 @@ extern int set_signals(int enable);
extern void os_fill_handlinfo(struct kern_handlers h);
extern void do_longjmp(void *p, int val);
+/* util.c */
+extern void stack_protections(unsigned long address);
+extern void task_protections(unsigned long address);
+extern int raw(int fd);
+extern void setup_machinename(char *machine_out);
+extern void setup_hostinfo(void);
+extern int setjmp_wrapper(void (*proc)(void *, void *), ...);
+
#endif
Index: linux-2.6.15-mm/arch/um/include/user_util.h
===================================================================
--- linux-2.6.15-mm.orig/arch/um/include/user_util.h 2006-01-06 21:24:14.000000000 -0500
+++ linux-2.6.15-mm/arch/um/include/user_util.h 2006-01-06 21:24:14.000000000 -0500
@@ -44,10 +44,6 @@ extern unsigned long brk_start;
extern int pty_output_sigio;
extern int pty_close_sigio;
-extern void stop(void);
-extern void stack_protections(unsigned long address);
-extern void task_protections(unsigned long address);
-extern int wait_for_stop(int pid, int sig, int cont_type, void *relay);
extern void *add_signal_handler(int sig, void (*handler)(int));
extern int linux_main(int argc, char **argv);
extern void set_cmdline(char *cmd);
@@ -55,8 +51,6 @@ extern void input_cb(void (*proc)(void *
extern int get_pty(void);
extern void *um_kmalloc(int size);
extern int switcheroo(int fd, int prot, void *from, void *to, int size);
-extern void setup_machinename(char *machine_out);
-extern void setup_hostinfo(void);
extern void do_exec(int old_pid, int new_pid);
extern void tracer_panic(char *msg, ...);
extern int detach(int pid, int sig);
@@ -70,18 +64,6 @@ extern int cpu_feature(char *what, char
extern int arch_handle_signal(int sig, union uml_pt_regs *regs);
extern int arch_fixup(unsigned long address, void *sc_ptr);
extern void arch_init_thread(void);
-extern int setjmp_wrapper(void (*proc)(void *, void *), ...);
extern int raw(int fd);
#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
Index: linux-2.6.15-mm/arch/um/kernel/Makefile
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/Makefile 2006-01-06 21:24:14.000000000 -0500
+++ linux-2.6.15-mm/arch/um/kernel/Makefile 2006-01-06 21:46:20.000000000 -0500
@@ -10,8 +10,7 @@ obj-y = config.o exec_kern.o exitcode.o
init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \
process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
signal_kern.o smp.o syscall_kern.o sysrq.o time.o \
- time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o \
- user_util.o
+ time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o
obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
obj-$(CONFIG_GPROF) += gprof_syms.o
@@ -24,7 +23,7 @@ obj-$(CONFIG_MODE_SKAS) += skas/
user-objs-$(CONFIG_TTY_LOG) += tty_log.o
-USER_OBJS := $(user-objs-y) config.o time.o tty_log.o user_util.o
+USER_OBJS := $(user-objs-y) config.o time.o tty_log.o
include arch/um/scripts/Makefile.rules
Index: linux-2.6.15-mm/arch/um/kernel/skas/uaccess.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/skas/uaccess.c 2006-01-06 21:23:35.000000000 -0500
+++ linux-2.6.15-mm/arch/um/kernel/skas/uaccess.c 2006-01-06 21:24:14.000000000 -0500
@@ -13,7 +13,7 @@
#include "asm/pgtable.h"
#include "asm/uaccess.h"
#include "kern_util.h"
-#include "user_util.h"
+#include "os.h"
extern void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
pte_t *pte_out);
Index: linux-2.6.15-mm/arch/um/kernel/tt/gdb.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/tt/gdb.c 2006-01-06 21:23:35.000000000 -0500
+++ linux-2.6.15-mm/arch/um/kernel/tt/gdb.c 2006-01-06 21:24:14.000000000 -0500
@@ -20,6 +20,7 @@
#include "user_util.h"
#include "tt.h"
#include "sysdep/thread.h"
+#include "os.h"
extern int debugger_pid;
extern int debugger_fd;
Index: linux-2.6.15-mm/arch/um/kernel/tt/ptproxy/ptrace.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/tt/ptproxy/ptrace.c 2006-01-06 21:23:35.000000000 -0500
+++ linux-2.6.15-mm/arch/um/kernel/tt/ptproxy/ptrace.c 2006-01-06 21:24:14.000000000 -0500
@@ -20,6 +20,7 @@ Jeff Dike (jdike@karaya.com) : Modified
#include "kern_util.h"
#include "ptrace_user.h"
#include "tt.h"
+#include "os.h"
long proxy_ptrace(struct debugger *debugger, int arg1, pid_t arg2,
long arg3, long arg4, pid_t child, int *ret)
Index: linux-2.6.15-mm/arch/um/kernel/tt/ptproxy/sysdep.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/tt/ptproxy/sysdep.c 2006-01-06 21:23:35.000000000 -0500
+++ linux-2.6.15-mm/arch/um/kernel/tt/ptproxy/sysdep.c 2006-01-06 21:24:14.000000000 -0500
@@ -15,6 +15,7 @@ terms and conditions.
#include "ptrace_user.h"
#include "user_util.h"
#include "user.h"
+#include "os.h"
int get_syscall(pid_t pid, long *arg1, long *arg2, long *arg3, long *arg4,
long *arg5)
Index: linux-2.6.15-mm/arch/um/kernel/user_util.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/kernel/user_util.c 2006-01-06 21:23:35.000000000 -0500
+++ /dev/null 1970-01-01 00:00:00.000000000 +0000
@@ -1,174 +0,0 @@
-/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-#include <setjmp.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/utsname.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include "asm/types.h"
-#include <ctype.h>
-#include <signal.h>
-#include <wait.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <sched.h>
-#include <termios.h>
-#include <string.h>
-#include "user_util.h"
-#include "kern_util.h"
-#include "user.h"
-#include "mem_user.h"
-#include "init.h"
-#include "ptrace_user.h"
-#include "uml-config.h"
-
-void stop(void)
-{
- while(1) sleep(1000000);
-}
-
-void stack_protections(unsigned long address)
-{
- int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
-
- if(mprotect((void *) address, page_size(), prot) < 0)
- panic("protecting stack failed, errno = %d", errno);
-}
-
-void task_protections(unsigned long address)
-{
- unsigned long guard = address + page_size();
- unsigned long stack = guard + page_size();
- int prot = 0, pages;
-
-#ifdef notdef
- if(mprotect((void *) stack, page_size(), prot) < 0)
- panic("protecting guard page failed, errno = %d", errno);
-#endif
- pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER) - 2;
- prot = PROT_READ | PROT_WRITE | PROT_EXEC;
- if(mprotect((void *) stack, pages * page_size(), prot) < 0)
- panic("protecting stack failed, errno = %d", errno);
-}
-
-int wait_for_stop(int pid, int sig, int cont_type, void *relay)
-{
- sigset_t *relay_signals = relay;
- int status, ret;
-
- while(1){
- CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED));
- if((ret < 0) ||
- !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){
- if(ret < 0){
- printk("wait failed, errno = %d\n",
- errno);
- }
- else if(WIFEXITED(status))
- printk("process %d exited with status %d\n",
- pid, WEXITSTATUS(status));
- else if(WIFSIGNALED(status))
- printk("process %d exited with signal %d\n",
- pid, WTERMSIG(status));
- else if((WSTOPSIG(status) == SIGVTALRM) ||
- (WSTOPSIG(status) == SIGALRM) ||
- (WSTOPSIG(status) == SIGIO) ||
- (WSTOPSIG(status) == SIGPROF) ||
- (WSTOPSIG(status) == SIGCHLD) ||
- (WSTOPSIG(status) == SIGWINCH) ||
- (WSTOPSIG(status) == SIGINT)){
- ptrace(cont_type, pid, 0, WSTOPSIG(status));
- continue;
- }
- else if((relay_signals != NULL) &&
- sigismember(relay_signals, WSTOPSIG(status))){
- ptrace(cont_type, pid, 0, WSTOPSIG(status));
- continue;
- }
- else printk("process %d stopped with signal %d\n",
- pid, WSTOPSIG(status));
- panic("wait_for_stop failed to wait for %d to stop "
- "with %d\n", pid, sig);
- }
- return(status);
- }
-}
-
-int raw(int fd)
-{
- struct termios tt;
- int err;
-
- CATCH_EINTR(err = tcgetattr(fd, &tt));
- if(err < 0)
- return -errno;
-
- cfmakeraw(&tt);
-
- CATCH_EINTR(err = tcsetattr(fd, TCSADRAIN, &tt));
- if(err < 0)
- return -errno;
-
- /* XXX tcsetattr could have applied only some changes
- * (and cfmakeraw() is a set of changes) */
- return(0);
-}
-
-void setup_machinename(char *machine_out)
-{
- struct utsname host;
-
- uname(&host);
-#if defined(UML_CONFIG_UML_X86) && !defined(UML_CONFIG_64BIT)
- if (!strcmp(host.machine, "x86_64")) {
- strcpy(machine_out, "i686");
- return;
- }
-#endif
- strcpy(machine_out, host.machine);
-}
-
-char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1];
-
-void setup_hostinfo(void)
-{
- struct utsname host;
-
- uname(&host);
- sprintf(host_info, "%s %s %s %s %s", host.sysname, host.nodename,
- host.release, host.version, host.machine);
-}
-
-int setjmp_wrapper(void (*proc)(void *, void *), ...)
-{
- va_list args;
- sigjmp_buf buf;
- int n;
-
- n = sigsetjmp(buf, 1);
- if(n == 0){
- va_start(args, proc);
- (*proc)(&buf, &args);
- }
- va_end(args);
- return(n);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
Index: linux-2.6.15-mm/arch/um/os-Linux/Makefile
===================================================================
--- linux-2.6.15-mm.orig/arch/um/os-Linux/Makefile 2006-01-06 21:24:14.000000000 -0500
+++ linux-2.6.15-mm/arch/um/os-Linux/Makefile 2006-01-06 21:24:14.000000000 -0500
@@ -5,12 +5,12 @@
obj-y = aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \
start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o user_syms.o \
- drivers/ sys-$(SUBARCH)/
+ util.o drivers/ sys-$(SUBARCH)/
obj-$(CONFIG_MODE_SKAS) += skas/
USER_OBJS := aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \
- start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o
+ start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o util.o
elf_aux.o: $(ARCH_DIR)/kernel-offsets.h
CFLAGS_elf_aux.o += -I$(objtree)/arch/um
Index: linux-2.6.15-mm/arch/um/os-Linux/tt.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/os-Linux/tt.c 2006-01-06 21:24:14.000000000 -0500
+++ linux-2.6.15-mm/arch/um/os-Linux/tt.c 2006-01-06 21:46:20.000000000 -0500
@@ -63,6 +63,54 @@ void kill_child_dead(int pid)
} while(1);
}
+void stop(void)
+{
+ while(1) sleep(1000000);
+}
+
+int wait_for_stop(int pid, int sig, int cont_type, void *relay)
+{
+ sigset_t *relay_signals = relay;
+ int status, ret;
+
+ while(1){
+ CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED));
+ if((ret < 0) ||
+ !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){
+ if(ret < 0){
+ printk("wait failed, errno = %d\n",
+ errno);
+ }
+ else if(WIFEXITED(status))
+ printk("process %d exited with status %d\n",
+ pid, WEXITSTATUS(status));
+ else if(WIFSIGNALED(status))
+ printk("process %d exited with signal %d\n",
+ pid, WTERMSIG(status));
+ else if((WSTOPSIG(status) == SIGVTALRM) ||
+ (WSTOPSIG(status) == SIGALRM) ||
+ (WSTOPSIG(status) == SIGIO) ||
+ (WSTOPSIG(status) == SIGPROF) ||
+ (WSTOPSIG(status) == SIGCHLD) ||
+ (WSTOPSIG(status) == SIGWINCH) ||
+ (WSTOPSIG(status) == SIGINT)){
+ ptrace(cont_type, pid, 0, WSTOPSIG(status));
+ continue;
+ }
+ else if((relay_signals != NULL) &&
+ sigismember(relay_signals, WSTOPSIG(status))){
+ ptrace(cont_type, pid, 0, WSTOPSIG(status));
+ continue;
+ }
+ else printk("process %d stopped with signal %d\n",
+ pid, WSTOPSIG(status));
+ panic("wait_for_stop failed to wait for %d to stop "
+ "with %d\n", pid, sig);
+ }
+ return(status);
+ }
+}
+
/*
*-------------------------
* only for tt mode (will be deleted in future...)
Index: linux-2.6.15-mm/arch/um/os-Linux/util.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.15-mm/arch/um/os-Linux/util.c 2006-01-06 21:46:42.000000000 -0500
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+#include <setjmp.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/utsname.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include "asm/types.h"
+#include <ctype.h>
+#include <signal.h>
+#include <wait.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <sched.h>
+#include <termios.h>
+#include <string.h>
+#include "user_util.h"
+#include "kern_util.h"
+#include "user.h"
+#include "mem_user.h"
+#include "init.h"
+#include "ptrace_user.h"
+#include "uml-config.h"
+#include "os.h"
+
+void stack_protections(unsigned long address)
+{
+ int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
+
+ if(mprotect((void *) address, page_size(), prot) < 0)
+ panic("protecting stack failed, errno = %d", errno);
+}
+
+void task_protections(unsigned long address)
+{
+ unsigned long guard = address + page_size();
+ unsigned long stack = guard + page_size();
+ int prot = 0, pages;
+
+#ifdef notdef
+ if(mprotect((void *) stack, page_size(), prot) < 0)
+ panic("protecting guard page failed, errno = %d", errno);
+#endif
+ pages = (1 << UML_CONFIG_KERNEL_STACK_ORDER) - 2;
+ prot = PROT_READ | PROT_WRITE | PROT_EXEC;
+ if(mprotect((void *) stack, pages * page_size(), prot) < 0)
+ panic("protecting stack failed, errno = %d", errno);
+}
+
+int raw(int fd)
+{
+ struct termios tt;
+ int err;
+
+ CATCH_EINTR(err = tcgetattr(fd, &tt));
+ if(err < 0)
+ return -errno;
+
+ cfmakeraw(&tt);
+
+ CATCH_EINTR(err = tcsetattr(fd, TCSADRAIN, &tt));
+ if(err < 0)
+ return -errno;
+
+ /* XXX tcsetattr could have applied only some changes
+ * (and cfmakeraw() is a set of changes) */
+ return(0);
+}
+
+void setup_machinename(char *machine_out)
+{
+ struct utsname host;
+
+ uname(&host);
+#if defined(UML_CONFIG_UML_X86) && !defined(UML_CONFIG_64BIT)
+ if (!strcmp(host.machine, "x86_64")) {
+ strcpy(machine_out, "i686");
+ return;
+ }
+#endif
+ strcpy(machine_out, host.machine);
+}
+
+char host_info[(_UTSNAME_LENGTH + 1) * 4 + _UTSNAME_NODENAME_LENGTH + 1];
+
+void setup_hostinfo(void)
+{
+ struct utsname host;
+
+ uname(&host);
+ sprintf(host_info, "%s %s %s %s %s", host.sysname, host.nodename,
+ host.release, host.version, host.machine);
+}
+
+int setjmp_wrapper(void (*proc)(void *, void *), ...)
+{
+ va_list args;
+ sigjmp_buf buf;
+ int n;
+
+ n = sigsetjmp(buf, 1);
+ if(n == 0){
+ va_start(args, proc);
+ (*proc)(&buf, &args);
+ }
+ va_end(args);
+ return(n);
+}
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2006-01-15 21:39 [uml-devel] [PATCH 2/11] UML - Move libc-dependent utility procedures Jeff Dike
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