RE: gnumach with gcc-2.95.1 or newer
Hello,
here are some changes for gnumach which allow compilation using gcc-2.95 or
newer. I tested them with a cross gcc-2.95.1 under Linux.
gcc-2.95.1 gives more warnings than older versions. Some of them I have
fixed
in this patch. Many more remain to be done.
Here is an extract from ChangeLog which summarises my changes:
* device/subrs.c: Fixed compiler warning.
* ddb/db_output.c, kern/bootstrap.c, kern/debug.c, kern/printf.c:
Replaced varargs.h by stdarg.h. Fixed prototypes (const char *fmt).
* ddb/db_output.h: Use prototype for db_printf.
* i386/Files: removed varargs.h.
* i386/i386/pit.h: Fixed compiler warning.
* i386/i386at/model_dep.c: Tried to fix compiler warning.
* i386/include/mach/sa/sys/varargs.h: Removed.
! * i386/linux/Makefile.in: Removed delay.S, added delay.c.
! * linux/dev/include/asm-i386/segment.h: Support gcc-2.95.
! * linux/dev/include/asm-i386/string.h,
linux/src/include/asm-i386/string.h: Update from linux-2.2.14.
* linux/dev/lib/vsprintf.c: Fixed compiler warning.
! * linux/src/include/asm-i386/delay.h: Update from linux-2.2.14.
! * linux/src/arch/i386/lib/delay.S: Removed.
! * linux/src/arch/i386/lib/delay.c: Copy from linux-2.2.14.
! * linux/src/include/asm-i386/string.h: Update from linux-2.2.14.
The changes marked with "!" are essential for gcc-2.95.
All changes should be compatible with older gcc versions, but I did not
test this.
With gcc-2.95 or newer, segment.h declares less efficient inline functions,
but I did not notice any performance degradation with such a kernel.
The new delay.c might change some delays in device drivers, but it is
Linux compatible, so this should be fine.
Hurd also compiles with gcc-2.95.1, so there is no longer a need to use
an old compiler.
Regards,
Stefan
These files are no longer needed. Remove them:
linux/src/arch/i386/lib/delay.S
i386/include/mach/sa/sys/varargs.h
This file is new. Please add it manually:
linux/src/arch/i386/lib/delay.c
===================================================================
/*
* Precise Delay Loops for i386
*
* Copyright (C) 1993 Linus Torvalds
* Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*
* The __delay function must _NOT_ be inlined as its execution time
* depends wildly on alignment on many x86 processors. The additional
* jump magic is needed to get the timing stable on all the CPU's
* we have to worry about.
*/
#include <linux/sched.h>
#include <linux/delay.h>
#ifdef __SMP__
#include <asm/smp.h>
#endif
void __delay(unsigned long loops)
{
int d0;
__asm__ __volatile__(
"\tjmp 1f\n"
".align 16\n"
"1:\tjmp 2f\n"
".align 16\n"
"2:\tdecl %0\n\tjns 2b"
:"=&a" (d0)
:"0" (loops));
}
inline void __const_udelay(unsigned long xloops)
{
int d0;
__asm__("mull %0"
:"=d" (xloops), "=&a" (d0)
:"1" (xloops),"0" (current_cpu_data.loops_per_sec));
__delay(xloops);
}
void __udelay(unsigned long usecs)
{
__const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */
}
===================================================================
Patches for other files follow.
Index: ChangeLog
===================================================================
RCS file: /home/cvs/gnumach/ChangeLog,v
retrieving revision 1.69
diff -u -r1.69 ChangeLog
--- ChangeLog 1999/10/08 13:49:43 1.69
+++ ChangeLog 2000/02/07 07:39:09
@@ -1,3 +1,17 @@
+2000-02-06 Stefan Weil <stefan.weil@de.heidelberg.com>
+
+ * device/subrs.c: Fixed compiler warning.
+ * ddb/db_output.c, kern/bootstrap.c, kern/debug.c, kern/printf.c:
+ Replaced varargs.h by stdarg.h. Fixed prototypes (const char *fmt).
+ * ddb/db_output.h: Use prototype for db_printf.
+ * i386/Files: removed varargs.h.
+ * i386/i386/pit.h: Fixed compiler warning.
+ * i386/i386at/model_dep.c: Tried to fix compiler warning.
+ * i386/include/mach/sa/sys/varargs.h: Removed.
+ * i386/linux/Makefile.in: Removed delay.S, added delay.c.
+ * linux/dev/include/asm-i386/segment.h: Support gcc-2.95.
+ * linux/dev/include/asm-i386/string.h,
+ linux/src/include/asm-i386/string.h: Update from linux-2.2.14.
+ * linux/dev/lib/vsprintf.c: Fixed compiler warning.
+ * linux/src/include/asm-i386/delay.h: Update from linux-2.2.14.
+ * linux/src/arch/i386/lib/delay.c: Copy from linux-2.2.14.
+ * linux/src/include/asm-i386/string.h: Update from linux-2.2.14.
+
1999-10-08 Thomas Bushnell, BSG <tb@mit.edu>
* linux/src/drivers/net/3c59x.c: Updated to version 0.99L of the
Index: ddb/db_output.c
===================================================================
RCS file: /home/cvs/gnumach/ddb/db_output.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 db_output.c
--- db_output.c 1997/02/25 21:28:12 1.1.1.1
+++ db_output.c 2000/02/07 07:39:09
@@ -35,8 +35,8 @@
* Printf and character output for debugger.
*/
+#include <stdarg.h>
#include <mach/boolean.h>
-#include <sys/varargs.h>
#include <machine/db_machdep.h>
#include <ddb/db_lex.h>
#include <ddb/db_output.h>
@@ -209,16 +209,14 @@
/*VARARGS1*/
void
-db_printf( fmt, va_alist)
- char * fmt;
- va_dcl
+db_printf(const char *fmt, ...)
{
va_list listp;
#ifdef db_printf_enter
db_printf_enter(); /* optional multiP serialization */
#endif
- va_start(listp);
+ va_start(listp, fmt);
_doprnt(fmt, &listp, db_id_putc, db_radix, 0);
va_end(listp);
}
@@ -227,12 +225,10 @@
/*VARARGS1*/
void
-kdbprintf(fmt, va_alist)
- char * fmt;
- va_dcl
+kdbprintf(const char *fmt, ...)
{
va_list listp;
- va_start(listp);
+ va_start(listp, fmt);
_doprnt(fmt, &listp, db_id_putc, db_radix, 0);
va_end(listp);
}
Index: ddb/db_output.h
===================================================================
RCS file: /home/cvs/gnumach/ddb/db_output.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 db_output.h
--- db_output.h 1997/02/25 21:28:12 1.1.1.1
+++ db_output.h 2000/02/07 07:39:09
@@ -35,10 +35,6 @@
extern void db_force_whitespace();
extern int db_print_position();
extern void db_end_line();
-#if 1
-extern void db_printf();
-#else
-extern void db_printf( char *fmt, ...);
-#endif
+extern void db_printf( const char *fmt, ...);
Index: device/subrs.c
===================================================================
RCS file: /home/cvs/gnumach/device/subrs.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 subrs.c
--- subrs.c 1997/02/25 21:28:16 1.1.1.1
+++ subrs.c 2000/02/07 07:39:09
@@ -110,7 +110,7 @@
register io_req_t ior;
io_req_alloc(ior, 0);
- ior->io_device = (device_t)0;
+ ior->io_device = (mach_device_t)0;
ior->io_unit = 0;
ior->io_op = 0;
ior->io_mode = 0;
Index: i386/Files
===================================================================
RCS file: /home/cvs/gnumach/i386/Files,v
retrieving revision 1.8
diff -u -r1.8 Files
--- Files 1999/06/21 18:32:17 1.8
+++ Files 2000/02/07 07:39:09
@@ -248,7 +248,6 @@
i386/include/mach/i386/vm_types.h
i386/include/mach/i386/exec/elf.h
i386/include/mach/sa/stdarg.h
-i386/include/mach/sa/sys/varargs.h
i386/intel/pmap.c
i386/intel/pmap.h
i386/intel/read_fault.c
Index: i386/i386/pit.h
===================================================================
RCS file: /home/cvs/gnumach/i386/i386/pit.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 pit.h
--- pit.h 1997/02/25 21:27:11 1.1.1.1
+++ pit.h 2000/02/07 07:39:09
@@ -100,8 +100,10 @@
time_t ticks; /* time in HZ since boot */
time_t uticks; /* time in 1.25 MHZ */
/* don't need these two for now. --- csy */
-/* time_t secs; /* seconds since boot */
-/* time_t epochsecs; /* seconds since epoch */
+#if 0
+ time_t secs; /* seconds since boot */
+ time_t epochsecs; /* seconds since epoch */
+#endif
} time_latch;
/* a couple in-line assembly codes for efficiency. */
asm int intr_disable()
Index: i386/i386at/model_dep.c
===================================================================
RCS file: /home/cvs/gnumach/i386/i386at/model_dep.c,v
retrieving revision 1.4
diff -u -r1.4 model_dep.c
--- model_dep.c 1999/09/04 13:03:15 1.4
+++ model_dep.c 2000/02/07 07:39:10
@@ -98,6 +98,9 @@
extern void setup_main();
+void halt_all_cpu (boolean_t reboot) __attribute__ ((noreturn));
+void halt_cpu (void) __attribute__ ((noreturn));
+
void inittodr(); /* forward */
int rebootflag = 0; /* exported to kdintr */
@@ -155,7 +158,7 @@
/*
* Halt a cpu.
*/
-halt_cpu()
+void halt_cpu(void)
{
asm volatile("cli");
while(1);
@@ -164,7 +167,7 @@
/*
* Halt the system or reboot.
*/
-halt_all_cpus(reboot)
+void halt_all_cpus(reboot)
boolean_t reboot;
{
if (reboot) {
Index: i386/linux/Makefile.in
===================================================================
RCS file: /home/cvs/gnumach/i386/linux/Makefile.in,v
retrieving revision 1.2
diff -u -r1.2 Makefile.in
--- Makefile.in 1999/07/02 02:33:31 1.2
+++ Makefile.in 2000/02/07 07:39:10
@@ -31,7 +31,7 @@
# Files for driver support.
-linux-c-files = version.c softirq.c dma.c resource.c printk.c \
+linux-c-files = version.c softirq.c delay.c dma.c resource.c printk.c \
bios32.c irq.c ctype.c vsprintf.c main.c misc.c sched.c \
kmem.c block.c setup.c
@@ -39,6 +39,7 @@
vpath %.c $(linuxsrcdir)/dev/kernel
vpath %.c $(linuxsrcdir)/dev/init
vpath %.c $(linuxsrcdir)/dev/arch/$(systype)/kernel
+vpath %.c $(linuxsrcdir)/dev/arch/$(systype)/lib
vpath %.c $(linuxsrcdir)/dev/glue
vpath %.c $(linuxsrcdir)/dev/lib
@@ -50,7 +51,7 @@
# XXX: Assembly source files must be treated separately... Uggg...
-linux-asm-files = delay.S semaphore.S
+linux-asm-files = semaphore.S
vpath %.S $(linuxsrcdir)/dev/arch/$(systype)/lib
vpath %.S $(linuxsrcdir)/src/arch/$(systype)/lib
Index: kern/bootstrap.c
===================================================================
RCS file: /home/cvs/gnumach/kern/bootstrap.c,v
retrieving revision 1.3
diff -u -r1.3 bootstrap.c
--- bootstrap.c 1999/06/02 07:00:13 1.3
+++ bootstrap.c 2000/02/07 07:39:10
@@ -43,7 +43,7 @@
#include <vm/vm_kern.h>
#include <device/device_port.h>
-#include <sys/varargs.h>
+#include <stdarg.h>
#include <mach/machine/multiboot.h>
#include <mach/exec/exec.h>
@@ -335,9 +335,7 @@
extern vm_offset_t set_user_regs();
void
-static build_args_and_stack(boot_exec_info, va_alist)
- struct exec_info *boot_exec_info;
- va_dcl
+static build_args_and_stack(struct exec_info *boot_exec_info, ...)
{
vm_offset_t stack_base;
vm_size_t stack_size;
@@ -358,7 +356,7 @@
/*
* Calculate the size of the argument list.
*/
- va_start(argv_ptr);
+ va_start(argv_ptr, boot_exec_info);
arg_len = 0;
arg_count = 0;
for (;;) {
@@ -417,7 +415,7 @@
/*
* Then the strings and string pointers for each argument
*/
- va_start(argv_ptr);
+ va_start(argv_ptr, boot_exec_info);
while (--arg_count >= 0) {
arg_ptr = va_arg(argv_ptr, char *);
arg_item_len = strlen(arg_ptr) + 1; /* include trailing 0 */
Index: kern/debug.c
===================================================================
RCS file: /home/cvs/gnumach/kern/debug.c,v
retrieving revision 1.2
diff -u -r1.2 debug.c
--- debug.c 1998/04/24 17:25:59 1.2
+++ debug.c 2000/02/07 07:39:10
@@ -24,15 +24,18 @@
* the rights to redistribute these changes.
*/
+#include <stdarg.h>
+
#include <mach_kdb.h>
#include <norma_ipc.h>
#include <cpus.h>
#include "cpu_number.h"
#include <kern/lock.h>
-#include <sys/varargs.h>
#include <kern/thread.h>
+#warning missing include for panic()
+void panic(const char *s, ...);
extern void cnputc();
@@ -105,7 +108,7 @@
boolean_t panic_lock_initialized = FALSE;
decl_simple_lock_data(, panic_lock)
-char *panicstr;
+const char *panicstr;
int paniccpu;
void
@@ -120,9 +123,7 @@
/*VARARGS1*/
void
-panic(s, va_alist)
- char * s;
- va_dcl
+panic(const char *s, ...)
{
va_list listp;
#if NORMA_IPC
@@ -152,7 +153,7 @@
printf("(cpu %U)", paniccpu);
#endif
printf(": ");
- va_start(listp);
+ va_start(listp, s);
_doprnt(s, &listp, cnputc, 0);
va_end(listp);
printf("\n");
@@ -176,17 +177,14 @@
*/
/*VARARGS2*/
void
-log(level, fmt, va_alist)
- int level;
- char * fmt;
- va_dcl
+log(int level, const char *fmt, ...)
{
va_list listp;
#ifdef lint
level++;
#endif
- va_start(listp);
+ va_start(listp, fmt);
_doprnt(fmt, &listp, cnputc, 0);
va_end(listp);
}
Index: kern/printf.c
===================================================================
RCS file: /home/cvs/gnumach/kern/printf.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 printf.c
--- printf.c 1997/02/25 21:28:24 1.1.1.1
+++ printf.c 2000/02/07 07:39:11
@@ -115,7 +115,7 @@
#include <mach/boolean.h>
#include <kern/lock.h>
#include <kern/strings.h>
-#include <sys/varargs.h>
+#include <stdarg.h>
#define isdigit(d) ((d) >= '0' && (d) <= '9')
#define Ctod(c) ((c) - '0')
@@ -161,7 +161,7 @@
}
void _doprnt(
- register char *fmt,
+ register const char *fmt,
va_list *argp,
/* character output routine */
void (*putc)( char, vm_offset_t),
@@ -509,20 +509,16 @@
*/
extern void cnputc( char, /*not really*/vm_offset_t);
-void vprintf(fmt, listp)
- char * fmt;
- va_list listp;
+void vprintf(const char *fmt, va_list listp)
{
_doprnt(fmt, &listp, cnputc, 16, 0);
}
/*VARARGS1*/
-void printf(fmt, va_alist)
- char * fmt;
- va_dcl
+void printf(const char *fmt, ...)
{
va_list listp;
- va_start(listp);
+ va_start(listp, fmt);
vprintf(fmt, listp);
va_end(listp);
}
@@ -533,9 +529,7 @@
* Printing (to console) with indentation.
*/
/*VARARGS1*/
-void iprintf(fmt, va_alist)
- char * fmt;
- va_dcl
+void iprintf(const char *fmt, ...)
{
va_list listp;
register int i;
@@ -550,7 +544,7 @@
i--;
}
}
- va_start(listp);
+ va_start(listp, fmt);
_doprnt(fmt, &listp, cnputc, 16, 0);
va_end(listp);
}
@@ -572,15 +566,12 @@
}
int
-sprintf( buf, fmt, va_alist)
- char *buf;
- char *fmt;
- va_dcl
+sprintf(char *buf, const char *fmt, ...)
{
va_list listp;
char *start = buf;
- va_start(listp);
+ va_start(listp, fmt);
_doprnt(fmt, &listp, sputc, 16, (vm_offset_t)&buf);
va_end(listp);
Index: linux/dev/include/asm-i386/segment.h
===================================================================
RCS file: /home/cvs/gnumach/linux/dev/include/asm-i386/segment.h,v
retrieving revision 1.1
diff -u -r1.1 segment.h
--- segment.h 1999/04/26 05:47:29 1.1
+++ segment.h 2000/02/07 07:39:11
@@ -92,6 +92,7 @@
}
}
+#if defined(__GNUC__) && (__GNUC__ == 2) && (__GNUC_MINOR__ < 95)
static inline void __generic_memcpy_tofs(void * to, const void * from,
unsigned long n)
{
__asm__ volatile
@@ -271,6 +272,29 @@
(__builtin_constant_p(n) ? \
__constant_memcpy_tofs((to),(from),(n)) : \
__generic_memcpy_tofs((to),(from),(n)))
+
+
+#else /* code for gcc-2.95.x and newer follows */
+
+static inline void memcpy_fromfs(void * to, const void * from, unsigned
long n)
+{
+ char *d = (char *)to;
+ const char *s = (const char *)from;
+ while (n-- > 0) {
+ *d++ = __get_user(s++, 1);
+ }
+}
+
+static inline void memcpy_tofs(void * to, const void * from, unsigned long
n)
+{
+ char *d = (char *)to;
+ const char *s = (const char *)from;
+ while (n-- > 0) {
+ __put_user(*s++, d++, 1);
+ }
+}
+
+#endif /* not gcc-2.95 */
/*
* These are deprecated..
Index: linux/dev/include/asm-i386/string.h
===================================================================
RCS file: /home/cvs/gnumach/linux/dev/include/asm-i386/string.h,v
retrieving revision 1.1
diff -u -r1.1 string.h
--- string.h 1999/04/26 05:47:30 1.1
+++ string.h 2000/02/07 07:39:11
@@ -23,26 +23,29 @@
* set, making the functions fast and clean. String instructions have been
* used through-out, making for "slightly" unclear code :-)
*
- * Copyright (C) 1991, 1992 Linus Torvalds
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
*/
#define __HAVE_ARCH_STRCPY
extern inline char * strcpy(char * dest,const char *src)
{
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n"
"1:\tlodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
- : /* no output */
- :"S" (src),"D" (dest):"si","di","ax","memory");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2)
+ :"0" (src),"1" (dest) : "memory");
return dest;
}
#define __HAVE_ARCH_STRNCPY
extern inline char * strncpy(char * dest,const char *src,size_t count)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n"
"1:\tdecl %2\n\t"
@@ -54,14 +57,15 @@
"rep\n\t"
"stosb\n"
"2:"
- : /* no output */
- :"S" (src),"D" (dest),"c" (count):"si","di","ax","cx","memory");
+ : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
+ :"0" (src),"1" (dest),"2" (count) : "memory");
return dest;
}
#define __HAVE_ARCH_STRCAT
extern inline char * strcat(char * dest,const char * src)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n\t"
"repne\n\t"
@@ -71,20 +75,21 @@
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
- : /* no output */
- :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff):"si","di","ax","cx");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src), "1" (dest), "2" (0), "3" (0xffffffff):"memory");
return dest;
}
#define __HAVE_ARCH_STRNCAT
extern inline char * strncat(char * dest,const char * src,size_t count)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n\t"
"repne\n\t"
"scasb\n\t"
"decl %1\n\t"
- "movl %4,%3\n"
+ "movl %8,%3\n"
"1:\tdecl %3\n\t"
"js 2f\n\t"
"lodsb\n\t"
@@ -93,15 +98,16 @@
"jne 1b\n"
"2:\txorl %2,%2\n\t"
"stosb"
- : /* no output */
- :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff),"g" (count)
- :"si","di","ax","cx","memory");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
+ : "memory");
return dest;
}
#define __HAVE_ARCH_STRCMP
extern inline int strcmp(const char * cs,const char * ct)
{
+int d0, d1;
register int __res;
__asm__ __volatile__(
"cld\n"
@@ -113,9 +119,10 @@
"xorl %%eax,%%eax\n\t"
"jmp 3f\n"
"2:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%eax\n"
+ "orb $1,%%al\n"
"3:"
- :"=a" (__res):"S" (cs),"D" (ct):"si","di");
+ :"=a" (__res), "=&S" (d0), "=&D" (d1)
+ :"1" (cs),"2" (ct));
return __res;
}
@@ -123,6 +130,7 @@
extern inline int strncmp(const char * cs,const char * ct,size_t count)
{
register int __res;
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n"
"1:\tdecl %3\n\t"
@@ -137,13 +145,15 @@
"3:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
- :"=a" (__res):"S" (cs),"D" (ct),"c" (count):"si","di","cx");
+ :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
+ :"1" (cs),"2" (ct),"3" (count));
return __res;
}
#define __HAVE_ARCH_STRCHR
extern inline char * strchr(const char * s, int c)
{
+int d0;
register char * __res;
__asm__ __volatile__(
"cld\n\t"
@@ -156,13 +166,14 @@
"movl $1,%1\n"
"2:\tmovl %1,%0\n\t"
"decl %0"
- :"=a" (__res):"S" (s),"0" (c):"si");
+ :"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
return __res;
}
#define __HAVE_ARCH_STRRCHR
extern inline char * strrchr(const char * s, int c)
{
+int d0, d1;
register char * __res;
__asm__ __volatile__(
"cld\n\t"
@@ -173,123 +184,14 @@
"leal -1(%%esi),%0\n"
"2:\ttestb %%al,%%al\n\t"
"jne 1b"
- :"=d" (__res):"0" (0),"S" (s),"a" (c):"ax","si");
-return __res;
-}
-
-#define __HAVE_ARCH_STRSPN
-extern inline size_t strspn(const char * cs, const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "je 1b\n"
- "2:\tdecl %0"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
-return __res-cs;
-}
-
-#define __HAVE_ARCH_STRCSPN
-extern inline size_t strcspn(const char * cs, const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 1b\n"
- "2:\tdecl %0"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
-return __res-cs;
-}
-
-#define __HAVE_ARCH_STRPBRK
-extern inline char * strpbrk(const char * cs,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 1b\n\t"
- "decl %0\n\t"
- "jmp 3f\n"
- "2:\txorl %0,%0\n"
- "3:"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
+ :"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
return __res;
}
-#define __HAVE_ARCH_STRSTR
-extern inline char * strstr(const char * cs,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t" \
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring=''
*/
- "movl %%ecx,%%edx\n"
- "1:\tmovl %4,%%edi\n\t"
- "movl %%esi,%%eax\n\t"
- "movl %%edx,%%ecx\n\t"
- "repe\n\t"
- "cmpsb\n\t"
- "je 2f\n\t" /* also works for empty string, see above */
- "xchgl %%eax,%%esi\n\t"
- "incl %%esi\n\t"
- "cmpb $0,-1(%%eax)\n\t"
- "jne 1b\n\t"
- "xorl %%eax,%%eax\n\t"
- "2:"
- :"=a" (__res):"0" (0),"c" (0xffffffff),"S" (cs),"D" (ct),
- "g" (*cs), "g" (*ct)
- :"cx","dx","di","si");
-return __res;
-}
-
#define __HAVE_ARCH_STRLEN
extern inline size_t strlen(const char * s)
{
+int d0;
register int __res;
__asm__ __volatile__(
"cld\n\t"
@@ -297,86 +199,26 @@
"scasb\n\t"
"notl %0\n\t"
"decl %0"
- :"=c" (__res):"D" (s),"a" (0),"0" (0xffffffff):"di");
-return __res;
-}
-
-#define __HAVE_ARCH_STRTOK
-extern inline char * strtok(char * s,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "testl %1,%1\n\t"
- "jne 1f\n\t"
- "testl %0,%0\n\t"
- "je 8f\n\t"
- "movl %0,%1\n"
- "1:\txorl %0,%0\n\t"
- "movl $-1,%%ecx\n\t"
- "xorl %%eax,%%eax\n\t"
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "je 7f\n\t" /* empty delimiter-string */
- "movl %%ecx,%%edx\n"
- "2:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 7f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "je 2b\n\t"
- "decl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "je 7f\n\t"
- "movl %1,%0\n"
- "3:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 5f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 3b\n\t"
- "decl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "je 5f\n\t"
- "movb $0,(%1)\n\t"
- "incl %1\n\t"
- "jmp 6f\n"
- "5:\txorl %1,%1\n"
- "6:\tcmpb $0,(%0)\n\t"
- "jne 7f\n\t"
- "xorl %0,%0\n"
- "7:\ttestl %0,%0\n\t"
- "jne 8f\n\t"
- "movl %0,%1\n"
- "8:"
- :"=b" (__res),"=S" (___strtok)
- :"0" (___strtok),"1" (s),"g" (ct)
- :"ax","cx","dx","di","memory");
+ :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff));
return __res;
}
extern inline void * __memcpy(void * to, const void * from, size_t n)
{
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n\t"
"rep ; movsl\n\t"
- "testb $2,%b1\n\t"
+ "testb $2,%b4\n\t"
"je 1f\n\t"
"movsw\n"
- "1:\ttestb $1,%b1\n\t"
+ "1:\ttestb $1,%b4\n\t"
"je 2f\n\t"
"movsb\n"
"2:"
- : /* no output */
- :"c" (n/4), "q" (n),"D" ((long) to),"S" ((long) from)
- : "cx","di","si","memory");
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2)
+ :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
+ : "memory");
return (to);
}
@@ -402,6 +244,10 @@
case 4:
*(unsigned long *)to = *(const unsigned long *)from;
return to;
+ case 6: /* for Ethernet addresses */
+ *(unsigned long *)to = *(const unsigned long *)from;
+ *(2+(unsigned short *)to) = *(2+(const unsigned
short *)from);
+ return to;
case 8:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long
*)from);
@@ -426,19 +272,23 @@
return to;
}
#define COMMON(x) \
-__asm__("cld\n\t" \
+__asm__ __volatile__( \
+ "cld\n\t" \
"rep ; movsl" \
x \
- : /* no outputs */ \
- : "c" (n/4),"D" ((long) to),"S" ((long) from) \
- : "cx","di","si","memory");
-
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2) \
+ : "0" (n/4),"1" ((long) to),"2" ((long) from) \
+ : "memory");
+{
+ int d0, d1, d2;
switch (n % 4) {
case 0: COMMON(""); return to;
case 1: COMMON("\n\tmovsb"); return to;
case 2: COMMON("\n\tmovsw"); return to;
default: COMMON("\n\tmovsw\n\tmovsb"); return to;
}
+}
+
#undef COMMON
}
@@ -451,25 +301,26 @@
#define __HAVE_ARCH_MEMMOVE
extern inline void * memmove(void * dest,const void * src, size_t n)
{
+int d0, d1, d2;
if (dest<src)
__asm__ __volatile__(
"cld\n\t"
"rep\n\t"
"movsb"
- : /* no output */
- :"c" (n),"S" (src),"D" (dest)
- :"cx","si","di");
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),"1" (src),"2" (dest)
+ : "memory");
else
__asm__ __volatile__(
"std\n\t"
"rep\n\t"
"movsb\n\t"
"cld"
- : /* no output */
- :"c" (n),
- "S" (n-1+(const char *)src),
- "D" (n-1+(char *)dest)
- :"cx","si","di","memory");
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),
+ "1" (n-1+(const char *)src),
+ "2" (n-1+(char *)dest)
+ :"memory");
return dest;
}
@@ -478,6 +329,7 @@
#define __HAVE_ARCH_MEMCHR
extern inline void * memchr(const void * cs,int c,size_t count)
{
+int d0;
register void * __res;
if (!count)
return NULL;
@@ -488,20 +340,20 @@
"je 1f\n\t"
"movl $1,%0\n"
"1:\tdecl %0"
- :"=D" (__res):"a" (c),"D" (cs),"c" (count)
- :"cx");
+ :"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
return __res;
}
extern inline void * __memset_generic(void * s, char c,size_t count)
{
+int d0, d1;
__asm__ __volatile__(
"cld\n\t"
"rep\n\t"
"stosb"
- : /* no output */
- :"a" (c),"D" (s),"c" (count)
- :"cx","di","memory");
+ : "=&c" (d0), "=&D" (d1)
+ :"a" (c),"1" (s),"0" (count)
+ :"memory");
return s;
}
@@ -515,19 +367,20 @@
*/
extern inline void * __constant_c_memset(void * s, unsigned long c, size_t
count)
{
+int d0, d1;
__asm__ __volatile__(
"cld\n\t"
"rep ; stosl\n\t"
- "testb $2,%b1\n\t"
+ "testb $2,%b3\n\t"
"je 1f\n\t"
"stosw\n"
- "1:\ttestb $1,%b1\n\t"
+ "1:\ttestb $1,%b3\n\t"
"je 2f\n\t"
"stosb\n"
"2:"
- : /* no output */
- :"a" (c), "q" (count), "c" (count/4), "D" ((long) s)
- :"cx","di","memory");
+ : "=&c" (d0), "=&D" (d1)
+ :"a" (c), "q" (count), "0" (count/4), "1" ((long) s)
+ :"memory");
return (s);
}
@@ -535,20 +388,20 @@
#define __HAVE_ARCH_STRNLEN
extern inline size_t strnlen(const char * s, size_t count)
{
+int d0;
register int __res;
__asm__ __volatile__(
- "movl %1,%0\n\t"
+ "movl %2,%0\n\t"
"jmp 2f\n"
"1:\tcmpb $0,(%0)\n\t"
"je 3f\n\t"
"incl %0\n"
- "2:\tdecl %2\n\t"
- "cmpl $-1,%2\n\t"
+ "2:\tdecl %1\n\t"
+ "cmpl $-1,%1\n\t"
"jne 1b\n"
- "3:\tsubl %1,%0"
- :"=a" (__res)
- :"c" (s),"d" (count)
- :"dx");
+ "3:\tsubl %2,%0"
+ :"=a" (__res), "=&d" (d0)
+ :"c" (s),"1" (count));
return __res;
}
/* end of additional stuff */
@@ -577,19 +430,22 @@
return s;
}
#define COMMON(x) \
-__asm__("cld\n\t" \
+__asm__ __volatile__("cld\n\t" \
"rep ; stosl" \
x \
- : /* no outputs */ \
- : "a" (pattern),"c" (count/4),"D" ((long) s) \
- : "cx","di","memory")
-
+ : "=&c" (d0), "=&D" (d1) \
+ : "a" (pattern),"0" (count/4),"1" ((long) s) \
+ : "memory")
+{
+ int d0, d1;
switch (count % 4) {
case 0: COMMON(""); return s;
case 1: COMMON("\n\tstosb"); return s;
case 2: COMMON("\n\tstosw"); return s;
default: COMMON("\n\tstosw\n\tstosb"); return s;
}
+}
+
#undef COMMON
}
@@ -606,7 +462,7 @@
#define __HAVE_ARCH_MEMSET
#define memset(s, c, count) \
(__builtin_constant_p(c) ? \
- __constant_c_x_memset((s),(0x01010101UL*(unsigned char)c),(count)) : \
+ __constant_c_x_memset((s),(0x01010101UL*(unsigned char)(c)),(count)) : \
__memset((s),(c),(count)))
/*
Index: linux/dev/lib/vsprintf.c
===================================================================
RCS file: /home/cvs/gnumach/linux/dev/lib/vsprintf.c,v
retrieving revision 1.1
diff -u -r1.1 vsprintf.c
--- vsprintf.c 1999/04/26 05:50:01 1.1
+++ vsprintf.c 2000/02/07 07:39:11
@@ -131,13 +131,17 @@
if (sign)
*str++ = sign;
if (type & SPECIAL)
- if (base == 8)
- *str++ = '0';
- else if (base == 16)
- {
- *str++ = '0';
- *str++ = digits[33];
- }
+ {
+ if (base == 8)
+ {
+ *str++ = '0';
+ }
+ else if (base == 16)
+ {
+ *str++ = '0';
+ *str++ = digits[33];
+ }
+ }
if (!(type & LEFT))
while (size-- > 0)
*str++ = c;
Index: linux/src/include/asm-i386/delay.h
===================================================================
RCS file: /home/cvs/gnumach/linux/src/include/asm-i386/delay.h,v
retrieving revision 1.1
diff -u -r1.1 delay.h
--- delay.h 1999/04/26 05:55:42 1.1
+++ delay.h 2000/02/07 07:39:11
@@ -4,60 +4,15 @@
/*
* Copyright (C) 1993 Linus Torvalds
*
- * Delay routines, using a pre-computed "loops_per_second" value.
+ * Delay routines calling functions in arch/i386/lib/delay.c
*/
-
-#include <linux/linkage.h>
-
-#ifdef __SMP__
-#include <asm/smp.h>
-#endif
-
-extern void __do_delay(void); /* Special register call calling convention
*/
-
-extern __inline__ void __delay(int loops)
-{
- __asm__ __volatile__(
- "call " SYMBOL_NAME_STR(__do_delay)
- :/* no outputs */
- :"a" (loops)
- :"ax");
-}
-
-/*
- * division by multiplication: you don't have to worry about
- * loss of precision.
- *
- * Use only for very small delays ( < 1 msec). Should probably use a
- * lookup table, really, as the multiplications take much too long with
- * short delays. This is a "reasonable" implementation, though (and the
- * first constant multiplications gets optimized away if the delay is
- * a constant)
- */
-extern __inline__ void udelay(unsigned long usecs)
-{
- usecs *= 0x000010c6; /* 2**32 / 1000000 */
- __asm__("mull %0"
- :"=d" (usecs)
-#ifdef __SMP__
- :"a" (usecs),"0" (cpu_data[smp_processor_id()].udelay_val)
-#else
- :"a" (usecs),"0" (loops_per_sec)
-#endif
- :"ax");
-
- __delay(usecs);
-}
-
-extern __inline__ unsigned long muldiv(unsigned long a, unsigned long b,
unsigned long c)
-{
- __asm__("mull %1 ; divl %2"
- :"=a" (a)
- :"d" (b),
- "r" (c),
- "0" (a)
- :"dx");
- return a;
-}
+
+extern void __udelay(unsigned long usecs);
+extern void __const_udelay(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) (__builtin_constant_p(n) ? \
+ __const_udelay((n) * 0x10c6ul) : \
+ __udelay(n))
#endif /* defined(_I386_DELAY_H) */
Index: linux/src/include/asm-i386/string.h
===================================================================
RCS file: /home/cvs/gnumach/linux/src/include/asm-i386/string.h,v
retrieving revision 1.1
diff -u -r1.1 string.h
--- string.h 1999/04/26 05:55:59 1.1
+++ string.h 2000/02/07 07:39:11
@@ -23,26 +23,29 @@
* set, making the functions fast and clean. String instructions have been
* used through-out, making for "slightly" unclear code :-)
*
- * Copyright (C) 1991, 1992 Linus Torvalds
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
*/
#define __HAVE_ARCH_STRCPY
extern inline char * strcpy(char * dest,const char *src)
{
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n"
"1:\tlodsb\n\t"
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
- : /* no output */
- :"S" (src),"D" (dest):"si","di","ax","memory");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2)
+ :"0" (src),"1" (dest) : "memory");
return dest;
}
#define __HAVE_ARCH_STRNCPY
extern inline char * strncpy(char * dest,const char *src,size_t count)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n"
"1:\tdecl %2\n\t"
@@ -54,14 +57,15 @@
"rep\n\t"
"stosb\n"
"2:"
- : /* no output */
- :"S" (src),"D" (dest),"c" (count):"si","di","ax","cx","memory");
+ : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
+ :"0" (src),"1" (dest),"2" (count) : "memory");
return dest;
}
#define __HAVE_ARCH_STRCAT
extern inline char * strcat(char * dest,const char * src)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n\t"
"repne\n\t"
@@ -71,20 +75,21 @@
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
- : /* no output */
- :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff):"si","di","ax","cx");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src), "1" (dest), "2" (0), "3" (0xffffffff):"memory");
return dest;
}
#define __HAVE_ARCH_STRNCAT
extern inline char * strncat(char * dest,const char * src,size_t count)
{
+int d0, d1, d2, d3;
__asm__ __volatile__(
"cld\n\t"
"repne\n\t"
"scasb\n\t"
"decl %1\n\t"
- "movl %4,%3\n"
+ "movl %8,%3\n"
"1:\tdecl %3\n\t"
"js 2f\n\t"
"lodsb\n\t"
@@ -93,15 +98,16 @@
"jne 1b\n"
"2:\txorl %2,%2\n\t"
"stosb"
- : /* no output */
- :"S" (src),"D" (dest),"a" (0),"c" (0xffffffff),"g" (count)
- :"si","di","ax","cx","memory");
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
+ : "memory");
return dest;
}
#define __HAVE_ARCH_STRCMP
extern inline int strcmp(const char * cs,const char * ct)
{
+int d0, d1;
register int __res;
__asm__ __volatile__(
"cld\n"
@@ -113,9 +119,10 @@
"xorl %%eax,%%eax\n\t"
"jmp 3f\n"
"2:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%eax\n"
+ "orb $1,%%al\n"
"3:"
- :"=a" (__res):"S" (cs),"D" (ct):"si","di");
+ :"=a" (__res), "=&S" (d0), "=&D" (d1)
+ :"1" (cs),"2" (ct));
return __res;
}
@@ -123,6 +130,7 @@
extern inline int strncmp(const char * cs,const char * ct,size_t count)
{
register int __res;
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n"
"1:\tdecl %3\n\t"
@@ -137,13 +145,15 @@
"3:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
- :"=a" (__res):"S" (cs),"D" (ct),"c" (count):"si","di","cx");
+ :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
+ :"1" (cs),"2" (ct),"3" (count));
return __res;
}
#define __HAVE_ARCH_STRCHR
extern inline char * strchr(const char * s, int c)
{
+int d0;
register char * __res;
__asm__ __volatile__(
"cld\n\t"
@@ -156,13 +166,14 @@
"movl $1,%1\n"
"2:\tmovl %1,%0\n\t"
"decl %0"
- :"=a" (__res):"S" (s),"0" (c):"si");
+ :"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
return __res;
}
#define __HAVE_ARCH_STRRCHR
extern inline char * strrchr(const char * s, int c)
{
+int d0, d1;
register char * __res;
__asm__ __volatile__(
"cld\n\t"
@@ -173,123 +184,14 @@
"leal -1(%%esi),%0\n"
"2:\ttestb %%al,%%al\n\t"
"jne 1b"
- :"=d" (__res):"0" (0),"S" (s),"a" (c):"ax","si");
-return __res;
-}
-
-#define __HAVE_ARCH_STRSPN
-extern inline size_t strspn(const char * cs, const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "je 1b\n"
- "2:\tdecl %0"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
-return __res-cs;
-}
-
-#define __HAVE_ARCH_STRCSPN
-extern inline size_t strcspn(const char * cs, const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 1b\n"
- "2:\tdecl %0"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
-return __res-cs;
-}
-
-#define __HAVE_ARCH_STRPBRK
-extern inline char * strpbrk(const char * cs,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "movl %%ecx,%%edx\n"
- "1:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 2f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 1b\n\t"
- "decl %0\n\t"
- "jmp 3f\n"
- "2:\txorl %0,%0\n"
- "3:"
- :"=S" (__res):"a" (0),"c" (0xffffffff),"0" (cs),"g" (ct)
- :"ax","cx","dx","di");
+ :"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
return __res;
}
-#define __HAVE_ARCH_STRSTR
-extern inline char * strstr(const char * cs,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "cld\n\t" \
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring=''
*/
- "movl %%ecx,%%edx\n"
- "1:\tmovl %4,%%edi\n\t"
- "movl %%esi,%%eax\n\t"
- "movl %%edx,%%ecx\n\t"
- "repe\n\t"
- "cmpsb\n\t"
- "je 2f\n\t" /* also works for empty string, see above */
- "xchgl %%eax,%%esi\n\t"
- "incl %%esi\n\t"
- "cmpb $0,-1(%%eax)\n\t"
- "jne 1b\n\t"
- "xorl %%eax,%%eax\n\t"
- "2:"
- :"=a" (__res):"0" (0),"c" (0xffffffff),"S" (cs),"g" (ct)
- :"cx","dx","di","si");
-return __res;
-}
-
#define __HAVE_ARCH_STRLEN
extern inline size_t strlen(const char * s)
{
+int d0;
register int __res;
__asm__ __volatile__(
"cld\n\t"
@@ -297,86 +199,26 @@
"scasb\n\t"
"notl %0\n\t"
"decl %0"
- :"=c" (__res):"D" (s),"a" (0),"0" (0xffffffff):"di");
-return __res;
-}
-
-#define __HAVE_ARCH_STRTOK
-extern inline char * strtok(char * s,const char * ct)
-{
-register char * __res;
-__asm__ __volatile__(
- "testl %1,%1\n\t"
- "jne 1f\n\t"
- "testl %0,%0\n\t"
- "je 8f\n\t"
- "movl %0,%1\n"
- "1:\txorl %0,%0\n\t"
- "movl $-1,%%ecx\n\t"
- "xorl %%eax,%%eax\n\t"
- "cld\n\t"
- "movl %4,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t"
- "je 7f\n\t" /* empty delimiter-string */
- "movl %%ecx,%%edx\n"
- "2:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 7f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "je 2b\n\t"
- "decl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "je 7f\n\t"
- "movl %1,%0\n"
- "3:\tlodsb\n\t"
- "testb %%al,%%al\n\t"
- "je 5f\n\t"
- "movl %4,%%edi\n\t"
- "movl %%edx,%%ecx\n\t"
- "repne\n\t"
- "scasb\n\t"
- "jne 3b\n\t"
- "decl %1\n\t"
- "cmpb $0,(%1)\n\t"
- "je 5f\n\t"
- "movb $0,(%1)\n\t"
- "incl %1\n\t"
- "jmp 6f\n"
- "5:\txorl %1,%1\n"
- "6:\tcmpb $0,(%0)\n\t"
- "jne 7f\n\t"
- "xorl %0,%0\n"
- "7:\ttestl %0,%0\n\t"
- "jne 8f\n\t"
- "movl %0,%1\n"
- "8:"
- :"=b" (__res),"=S" (___strtok)
- :"0" (___strtok),"1" (s),"g" (ct)
- :"ax","cx","dx","di","memory");
+ :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff));
return __res;
}
extern inline void * __memcpy(void * to, const void * from, size_t n)
{
+int d0, d1, d2;
__asm__ __volatile__(
"cld\n\t"
"rep ; movsl\n\t"
- "testb $2,%b1\n\t"
+ "testb $2,%b4\n\t"
"je 1f\n\t"
"movsw\n"
- "1:\ttestb $1,%b1\n\t"
+ "1:\ttestb $1,%b4\n\t"
"je 2f\n\t"
"movsb\n"
"2:"
- : /* no output */
- :"c" (n/4), "q" (n),"D" ((long) to),"S" ((long) from)
- : "cx","di","si","memory");
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2)
+ :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
+ : "memory");
return (to);
}
@@ -402,6 +244,10 @@
case 4:
*(unsigned long *)to = *(const unsigned long *)from;
return to;
+ case 6: /* for Ethernet addresses */
+ *(unsigned long *)to = *(const unsigned long *)from;
+ *(2+(unsigned short *)to) = *(2+(const unsigned
short *)from);
+ return to;
case 8:
*(unsigned long *)to = *(const unsigned long *)from;
*(1+(unsigned long *)to) = *(1+(const unsigned long
*)from);
@@ -426,19 +272,23 @@
return to;
}
#define COMMON(x) \
-__asm__("cld\n\t" \
+__asm__ __volatile__( \
+ "cld\n\t" \
"rep ; movsl" \
x \
- : /* no outputs */ \
- : "c" (n/4),"D" ((long) to),"S" ((long) from) \
- : "cx","di","si","memory");
-
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2) \
+ : "0" (n/4),"1" ((long) to),"2" ((long) from) \
+ : "memory");
+{
+ int d0, d1, d2;
switch (n % 4) {
case 0: COMMON(""); return to;
case 1: COMMON("\n\tmovsb"); return to;
case 2: COMMON("\n\tmovsw"); return to;
- case 3: COMMON("\n\tmovsw\n\tmovsb"); return to;
+ default: COMMON("\n\tmovsw\n\tmovsb"); return to;
}
+}
+
#undef COMMON
}
@@ -451,25 +301,26 @@
#define __HAVE_ARCH_MEMMOVE
extern inline void * memmove(void * dest,const void * src, size_t n)
{
+int d0, d1, d2;
if (dest<src)
__asm__ __volatile__(
"cld\n\t"
"rep\n\t"
"movsb"
- : /* no output */
- :"c" (n),"S" (src),"D" (dest)
- :"cx","si","di");
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),"1" (src),"2" (dest)
+ : "memory");
else
__asm__ __volatile__(
"std\n\t"
"rep\n\t"
"movsb\n\t"
"cld"
- : /* no output */
- :"c" (n),
- "S" (n-1+(const char *)src),
- "D" (n-1+(char *)dest)
- :"cx","si","di","memory");
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),
+ "1" (n-1+(const char *)src),
+ "2" (n-1+(char *)dest)
+ :"memory");
return dest;
}
@@ -478,6 +329,7 @@
#define __HAVE_ARCH_MEMCHR
extern inline void * memchr(const void * cs,int c,size_t count)
{
+int d0;
register void * __res;
if (!count)
return NULL;
@@ -488,20 +340,20 @@
"je 1f\n\t"
"movl $1,%0\n"
"1:\tdecl %0"
- :"=D" (__res):"a" (c),"D" (cs),"c" (count)
- :"cx");
+ :"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
return __res;
}
extern inline void * __memset_generic(void * s, char c,size_t count)
{
+int d0, d1;
__asm__ __volatile__(
"cld\n\t"
"rep\n\t"
"stosb"
- : /* no output */
- :"a" (c),"D" (s),"c" (count)
- :"cx","di","memory");
+ : "=&c" (d0), "=&D" (d1)
+ :"a" (c),"1" (s),"0" (count)
+ :"memory");
return s;
}
@@ -515,19 +367,20 @@
*/
extern inline void * __constant_c_memset(void * s, unsigned long c, size_t
count)
{
+int d0, d1;
__asm__ __volatile__(
"cld\n\t"
"rep ; stosl\n\t"
- "testb $2,%b1\n\t"
+ "testb $2,%b3\n\t"
"je 1f\n\t"
"stosw\n"
- "1:\ttestb $1,%b1\n\t"
+ "1:\ttestb $1,%b3\n\t"
"je 2f\n\t"
"stosb\n"
"2:"
- : /* no output */
- :"a" (c), "q" (count), "c" (count/4), "D" ((long) s)
- :"cx","di","memory");
+ : "=&c" (d0), "=&D" (d1)
+ :"a" (c), "q" (count), "0" (count/4), "1" ((long) s)
+ :"memory");
return (s);
}
@@ -535,20 +388,20 @@
#define __HAVE_ARCH_STRNLEN
extern inline size_t strnlen(const char * s, size_t count)
{
+int d0;
register int __res;
__asm__ __volatile__(
- "movl %1,%0\n\t"
+ "movl %2,%0\n\t"
"jmp 2f\n"
"1:\tcmpb $0,(%0)\n\t"
"je 3f\n\t"
"incl %0\n"
- "2:\tdecl %2\n\t"
- "cmpl $-1,%2\n\t"
+ "2:\tdecl %1\n\t"
+ "cmpl $-1,%1\n\t"
"jne 1b\n"
- "3:\tsubl %1,%0"
- :"=a" (__res)
- :"c" (s),"d" (count)
- :"dx");
+ "3:\tsubl %2,%0"
+ :"=a" (__res), "=&d" (d0)
+ :"c" (s),"1" (count));
return __res;
}
/* end of additional stuff */
@@ -577,19 +430,22 @@
return s;
}
#define COMMON(x) \
-__asm__("cld\n\t" \
+__asm__ __volatile__("cld\n\t" \
"rep ; stosl" \
x \
- : /* no outputs */ \
- : "a" (pattern),"c" (count/4),"D" ((long) s) \
- : "cx","di","memory")
-
+ : "=&c" (d0), "=&D" (d1) \
+ : "a" (pattern),"0" (count/4),"1" ((long) s) \
+ : "memory")
+{
+ int d0, d1;
switch (count % 4) {
case 0: COMMON(""); return s;
case 1: COMMON("\n\tstosb"); return s;
case 2: COMMON("\n\tstosw"); return s;
- case 3: COMMON("\n\tstosw\n\tstosb"); return s;
+ default: COMMON("\n\tstosw\n\tstosb"); return s;
}
+}
+
#undef COMMON
}
@@ -606,7 +462,7 @@
#define __HAVE_ARCH_MEMSET
#define memset(s, c, count) \
(__builtin_constant_p(c) ? \
- __constant_c_x_memset((s),(0x01010101UL*(unsigned char)c),(count)) : \
+ __constant_c_x_memset((s),(0x01010101UL*(unsigned char)(c)),(count)) : \
__memset((s),(c),(count)))
/*
Reply to: