binutils-2.8.1-mips.patch and egcs-1.1.2-mips.patch ?

binutils-2.8.1-mips.patch and egcs-1.1.2-mips.patch ?

[Steven Liu]

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Hi ALL:

Thank you for your help.

If any one knows where I can find the following files: 
     binutils-2.8.1-mips.patch  and
    egcs-1.1.2-mips.patch,
please let me know.

Regards,


Steven Liu



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binutils-2.8.1-mips.patch and egcs-1.1.2-mips.patch ?

[Steven Liu]

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Hi ALL:

Thank you for your help.

If any one knows where I can find the following files: 
     binutils-2.8.1-mips.patch  and
    egcs-1.1.2-mips.patch,
please let me know.

Regards,


Steven Liu



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Re: binutils-2.8.1-mips.patch and egcs-1.1.2-mips.patch ?

[Ralf Baechle]

On Tue, Feb 27, 2001 at 07:11:10AM -0800, Steven Liu wrote:

> Thank you for your help.
> 
> If any one knows where I can find the following files: 
>      binutils-2.8.1-mips.patch  and
>     egcs-1.1.2-mips.patch,
> please let me know.

They're part of the srpm crosscompiler packages on oss.sgi.com.

  Ralf

Re: binutils-2.8.1-mips.patch and egcs-1.1.2-mips.patch ?

[Ralf Baechle]

On Tue, Feb 27, 2001 at 07:11:10AM -0800, Steven Liu wrote:

> Thank you for your help.
> 
> If any one knows where I can find the following files: 
>      binutils-2.8.1-mips.patch  and
>     egcs-1.1.2-mips.patch,
> please let me know.

They're part of the srpm crosscompiler packages on oss.sgi.com.

  Ralf

Patch allowing GDB to ignore misaligned data faults

[Quinn Jensen]

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When using gdb on the kernel, I've found it helpful to allow
misaligned exceptions to be emulated instead of being
intercepted by gdb.  The following patch does this.  But is
there a better way?  Perhaps a config.in option?

Or is this a case of treating the symptom?  Maybe there are
far too many altogether.  The network stack seems to
be littered with them--is skbuf alignment bad or something?

Ouch, I just looked and after a couple of days there have
been a lot!  This machine is running with nfs root, so every
time you breathe there's a lot of network I/O.

What kind of "unaligned accesses" counts are others seeing?

/ # cat /proc/cpuinfo
cpu                     : MIPS
cpu model               : RC32300 V0.0
system type             : IDT 79S334
BogoMIPS                : 149.91
byteorder               : little endian
unaligned accesses      : 329630
wait instruction        : no
microsecond timers      : no
extra interrupt vector  : yes
hardware watchpoint     : yes
VCED exceptions         : not available
VCEI exceptions         : not available

/ # uptime
   2:07pm  up 1 day, 21:07, load average: 0.00, 0.00, 0.00

Quinn






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diff -bpBuN -r -X - linux-sgi-cvs/arch/mips/kernel/gdb-stub.c linux+4/arch/mips/kernel/gdb-stub.c
--- linux-sgi-cvs/arch/mips/kernel/gdb-stub.c	Sun Dec  3 21:04:09 2000
+++ linux+4/arch/mips/kernel/gdb-stub.c	Mon Feb 26 14:56:05 2001
@@ -399,8 +399,11 @@ void set_debug_traps(void)
 	unsigned char c;
 
 	save_and_cli(flags);
-	for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+	for (ht = hard_trap_info; ht->tt && ht->signo; ht++) {
+		/* let the emulator handle adel and ades */
+		if (ht->tt == 4 || ht->tt == 5) continue;
 		set_except_vector(ht->tt, trap_low);
+	}
   
 	/*
 	 * In case GDB is started before us, ack any packets

Re: Patch allowing GDB to ignore misaligned data faults

[Jun Sun]

Quinn Jensen wrote:
> 
> When using gdb on the kernel, I've found it helpful to allow
> misaligned exceptions to be emulated instead of being
> intercepted by gdb.  The following patch does this.  But is
> there a better way?  Perhaps a config.in option?
> 

This does not sound right:  this is already fixed long time ago by not
installing traps for exception 4&5.  What kernel are you using?

Jun

Re: Patch allowing GDB to ignore misaligned data faults

[Quinn Jensen]

jsun@hermes.mvista.com wrote

> This does not sound right:  this is already fixed long time ago by not
> installing traps for exception 4&5.  What kernel are you using

You're right;  I let my patch ferment too long and it rotted.

Quinn