bc3acf82cc
According to EREF rlwinm is supposed to clear the upper 32 bits of the register of 64-bit cores. However, from experience it seems there's a bug in the e5500 which causes the result to be duplicated in the upper bits of the register. This causes problems when applied to stashed SRR1 accessed to retrieve context, as the upper bits are not masked out, so a set_mcontext() fails. This causes sigreturn() to in turn return with EINVAL, causing make(1) to exit with error. This bit is unused in e500mc derivatives (including e5500), so could just be conditional on non-powerpc64, but there may be other non-Freescale cores which do use it. This is also the same as the POW bit on Book-S, so could be cleared unconditionally with the only penalty being a few clock cycles for these two interrupts. |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| ObsoleteFiles.inc | ||
| README | ||
| README.md | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory. This file
was last revised on:
FreeBSD
For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information).
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables.
The buildkernel and installkernel targets build and install
the kernel and the modules (see below). Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.
Building a kernel is a somewhat more involved process. See build(7), config(8), and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.
Note: If you want to build and install the kernel with the
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world before. More information is available in the handbook.
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include System include files.
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