Is the MIPS kernel buildable from HEAD?
M. Warner Losh
imp at bsdimp.com
Thu Aug 26 16:16:52 UTC 2010
In message: <20100826.094630.94843338838666386.imp at bsdimp.com>
"M. Warner Losh" <imp at bsdimp.com> writes:
: : Also, I think our problem is with the a3 register passed in as part of
: : platform_start() in cavium/octeon_machdep.c. We have the following in
: : mips/lowcore.S -
: : #if defined(TARGET_OCTEON)
: : la a0, app_descriptor_addr
: : sw a3, 0(a0) /* Store app descriptor ptr */
: : #endif
: : So we are storing the value of a3 into a global that we later use in
: : octeon32/Octeon_machdep.c -
: Yea. The old code did that. We removed it because we were passing a3
: into the platform_start routine directly. I had to fix some of locore
: to not clobber the a3 register, however, to make it useful... A quick
: look at locore.S shows
that I forgot to finish this paragraph...
"shows that all the a* registers aren't used at all, so should be
passed unmodified into platform_start.
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