proposed gcc/gas -mb-step changes

From: Jim Wilson <>
Date: 2004-04-13 17:17:32
Zack Weinberg of CodeSourcery sent mail to the binutils mailing list
which proposes to add a new -mb-step option to the assembler. 
Currently, gas will always give warnings if given code which triggers an
Itanium (Merced) B-step errata.  The proposal is to only warn when the
new -mb-step option is used.  Also, this means that the existing gcc
option -mb-step will have to pass -mb-step to the assembler.  The
discussion is here

The linux kernel is the only code I know of that uses the gcc -mb-step
option.  This is used if you configure with B-step support enabled. 
This change means that the kernel should be modified to add -mb-step to
aflags when the B-step support is enabled, just like it currently does
for cflags.  Gas will fail if given a -m option it doesn't recognize, so
this means that these changes will only work with new assembler
versions.  I am assuming that use of the B-step support is rare enough
that this won't be a problem.
Jim Wilson, GNU Tools Support,

To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to
More majordomo info at
Received on Tue Apr 13 03:17:47 2004

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:25 EST