Merge branch 'linux-2.6'

4 files changed, 54 insertions, 118 deletions

diff --git a/arch/um/sys-x86_64/bugs.c b/arch/um/sys-x86_64/bugs.c
index fdce7ea98ca..09547889037 100644
--- a/arch/um/sys-x86_64/bugs.c
+++ b/arch/um/sys-x86_64/bugs.c
@@ -4,12 +4,7 @@
  * Licensed under the GPL
  */
 
-#include "linux/sched.h"
-#include "linux/errno.h"
-#include "asm/system.h"
-#include "asm/pda.h"
 #include "sysdep/ptrace.h"
-#include "os.h"
 
 void arch_init_thread(void)
 {
@@ -21,102 +16,5 @@ void arch_check_bugs(void)
 
 int arch_handle_signal(int sig, union uml_pt_regs *regs)
 {
-	return(0);
+	return 0;
 }
-
-#define MAXTOKEN 64
-
-/* Set during early boot */
-int host_has_cmov = 1;
-int host_has_xmm = 0;
-
-static char token(int fd, char *buf, int len, char stop)
-{
-	int n;
-	char *ptr, *end, c;
-
-	ptr = buf;
-	end = &buf[len];
-	do {
-		n = os_read_file(fd, ptr, sizeof(*ptr));
-		c = *ptr++;
-		if(n != sizeof(*ptr)){
-			if(n == 0) return(0);
-			printk("Reading /proc/cpuinfo failed, err = %d\n", -n);
-			if(n < 0)
-				return(n);
-			else
-				return(-EIO);
-		}
-	} while((c != '\n') && (c != stop) && (ptr < end));
-
-	if(ptr == end){
-		printk("Failed to find '%c' in /proc/cpuinfo\n", stop);
-		return(-1);
-	}
-	*(ptr - 1) = '\0';
-	return(c);
-}
-
-static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
-{
-	int n;
-	char c;
-
-	scratch[len - 1] = '\0';
-	while(1){
-		c = token(fd, scratch, len - 1, ':');
-		if(c <= 0)
-			return(0);
-		else if(c != ':'){
-			printk("Failed to find ':' in /proc/cpuinfo\n");
-			return(0);
-		}
-
-		if(!strncmp(scratch, key, strlen(key)))
-			return(1);
-
-		do {
-			n = os_read_file(fd, &c, sizeof(c));
-			if(n != sizeof(c)){
-				printk("Failed to find newline in "
-				       "/proc/cpuinfo, err = %d\n", -n);
-				return(0);
-			}
-		} while(c != '\n');
-	}
-	return(0);
-}
-
-int cpu_feature(char *what, char *buf, int len)
-{
-	int fd, ret = 0;
-
-	fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0);
-	if(fd < 0){
-		printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd);
-		return(0);
-	}
-
-	if(!find_cpuinfo_line(fd, what, buf, len)){
-		printk("Couldn't find '%s' line in /proc/cpuinfo\n", what);
-		goto out_close;
-	}
-
-	token(fd, buf, len, '\n');
-	ret = 1;
-
- out_close:
-	os_close_file(fd);
-	return(ret);
-}
-
-/* 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:
- */
diff --git a/arch/um/sys-x86_64/fault.c b/arch/um/sys-x86_64/fault.c
index cee1513c5c3..4636b1465b6 100644
--- a/arch/um/sys-x86_64/fault.c
+++ b/arch/um/sys-x86_64/fault.c
@@ -4,20 +4,24 @@
  * Licensed under the GPL
  */
 
-#include "user.h"
+#include "sysdep/ptrace.h"
 
-int arch_fixup(unsigned long address, void *sc_ptr)
+/* These two are from asm-um/uaccess.h and linux/module.h, check them. */
+struct exception_table_entry
 {
-	/* XXX search_exception_tables() */
+	unsigned long insn;
+	unsigned long fixup;
+};
+
+const struct exception_table_entry *search_exception_tables(unsigned long add);
+int arch_fixup(unsigned long address, union uml_pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+	fixup = search_exception_tables(address);
+	if(fixup != 0){
+		UPT_IP(regs) = fixup->fixup;
+		return(1);
+	}
 	return(0);
 }
-
-/* 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:
- */
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index af2f017617b..fe8ec04d35b 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -20,6 +20,36 @@
 
 #include "skas.h"
 
+void copy_sc(union uml_pt_regs *regs, void *from)
+{
+	struct sigcontext *sc = from;
+
+#define GETREG(regs, regno, sc, regname) \
+       (regs)->skas.regs[(regno) / sizeof(unsigned long)] = (sc)->regname
+
+       GETREG(regs, R8, sc, r8);
+       GETREG(regs, R9, sc, r9);
+       GETREG(regs, R10, sc, r10);
+       GETREG(regs, R11, sc, r11);
+       GETREG(regs, R12, sc, r12);
+       GETREG(regs, R13, sc, r13);
+       GETREG(regs, R14, sc, r14);
+       GETREG(regs, R15, sc, r15);
+       GETREG(regs, RDI, sc, rdi);
+       GETREG(regs, RSI, sc, rsi);
+       GETREG(regs, RBP, sc, rbp);
+       GETREG(regs, RBX, sc, rbx);
+       GETREG(regs, RDX, sc, rdx);
+       GETREG(regs, RAX, sc, rax);
+       GETREG(regs, RCX, sc, rcx);
+       GETREG(regs, RSP, sc, rsp);
+       GETREG(regs, RIP, sc, rip);
+       GETREG(regs, EFLAGS, sc, eflags);
+       GETREG(regs, CS, sc, cs);
+
+#undef GETREG
+}
+
 static int copy_sc_from_user_skas(struct pt_regs *regs,
                                  struct sigcontext __user *from)
 {
@@ -51,7 +81,7 @@ static int copy_sc_from_user_skas(struct pt_regs *regs,
 
 #undef GETREG
 
-       return(err);
+       return err;
 }
 
 int copy_sc_to_user_skas(struct sigcontext __user *to,
diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c
index 899cebb57c3..0d5fd764c21 100644
--- a/arch/um/sys-x86_64/user-offsets.c
+++ b/arch/um/sys-x86_64/user-offsets.c
@@ -2,6 +2,7 @@
 #include <stddef.h>
 #include <signal.h>
 #include <sys/poll.h>
+#include <sys/mman.h>
 #define __FRAME_OFFSETS
 #include <asm/ptrace.h>
 #include <asm/types.h>
@@ -57,7 +58,6 @@ void foo(void)
 	OFFSET(HOST_SC_SS, sigcontext, ss);
 #endif
 
-	DEFINE_LONGS(HOST_FRAME_SIZE, FRAME_SIZE);
 	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
 	DEFINE(HOST_XFP_SIZE, 0);
 	DEFINE_LONGS(HOST_RBX, RBX);
@@ -94,4 +94,8 @@ void foo(void)
 	DEFINE(UM_POLLIN, POLLIN);
 	DEFINE(UM_POLLPRI, POLLPRI);
 	DEFINE(UM_POLLOUT, POLLOUT);
+
+	DEFINE(UM_PROT_READ, PROT_READ);
+	DEFINE(UM_PROT_WRITE, PROT_WRITE);
+	DEFINE(UM_PROT_EXEC, PROT_EXEC);
 }