Date: Mon, 21 Feb 2000 14:00:42 +0900 From: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> To: rjk191@psu.edu Cc: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> Subject: Re: /sys/i386/machdep.c breaks kernel build Message-ID: <14512.50810.382596.26482Z@rina.r.dl.itc.u-tokyo.ac.jp> In-Reply-To: In your message of "Sun, 20 Feb 2000 23:48:01 -0500" <20000220234801.A4251@rjk191.rh.psu.edu> References: <20000220234801.A4251@rjk191.rh.psu.edu>
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On Sun, 20 Feb 2000 23:48:01 -0500,
Ray Kohler <ray@rjk191.rh.psu.edu> said:
Ray> cc -c -march=pentium -O3 -pipe -fno-builtin -Wall -Wredundant-decls
Ray> -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes
Ray> -Wpointer-arith -Winline -Wcast-qual -fformat-extensions -ansi
Ray> -nostdinc -I- -I. -I../.. -I../../../include -D_KERNEL -include
Ray> opt_global.h -elf -mpreferred-stack-boundary=2
Ray> ../../i386/i386/machdep.c
Ray> {standard input}: Assembler messages:
Ray> {standard input}:2772: Error: operands given don't match any known
Ray> 386 instruction
Ray> *** Error code 1
Could you try the following patch(sent to bsd personally)? It prevents
movl between a debug register and memory.
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Index: cpufunc.h
===================================================================
RCS file: /home/ncvs/src/sys/i386/include/cpufunc.h,v
retrieving revision 1.95
diff -u -r1.95 cpufunc.h
--- cpufunc.h 2000/02/20 20:51:22 1.95
+++ cpufunc.h 2000/02/21 03:44:30
@@ -456,7 +456,7 @@
rdr0(void)
{
u_int data;
- __asm __volatile("movl %%dr0,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr0,%0" : "=r" (data));
return (data);
}
@@ -464,7 +464,7 @@
rdr1(void)
{
u_int data;
- __asm __volatile("movl %%dr1,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr1,%0" : "=r" (data));
return (data);
}
@@ -472,7 +472,7 @@
rdr2(void)
{
u_int data;
- __asm __volatile("movl %%dr2,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr2,%0" : "=r" (data));
return (data);
}
@@ -480,7 +480,7 @@
rdr3(void)
{
u_int data;
- __asm __volatile("movl %%dr3,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr3,%0" : "=r" (data));
return (data);
}
@@ -488,7 +488,7 @@
rdr6(void)
{
u_int data;
- __asm __volatile("movl %%dr6,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr6,%0" : "=r" (data));
return (data);
}
@@ -496,7 +496,7 @@
rdr7(void)
{
u_int data;
- __asm __volatile("movl %%dr7,%0" : "=rm" (data));
+ __asm __volatile("movl %%dr7,%0" : "=r" (data));
return (data);
}
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Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> <tanimura@FreeBSD.org>
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