freebsd with flexible iflib nic queues
2baa1ef450
boundary. It must be on at least an 8 byte boundary so that the length of the signal code is a multiple of 8 (well aligned). The size is used in the calculation of the address of the argument and environment vectors on the user stack; getting it wrong results in the string pointers being misaligned and causes alignment faults in getenv() among other things. Allocate a regular stack frame below the signal frame on the user stack and join up the frame pointer to the previous frame. This fixes longjmp-ing out of signal handlers. Longjmp traverses the stack upwards in order to find the right frame to return to, so the frame pointers must join up seamlessly. I thought this would just work, but obviously the frame needs to be below the signal frame, not above it like before. Account for the extra space in the signal code. Preload pointers to interrupt data structures in interrupt globals. This avoids the need to load the pointers from memory in the vectored interrupt trap handler. Transfer the first 2 out registers into td_retval in setregs. We use the same registers for system call arguments as return values, so these registers got clobbered by the system call return values on return from execve. They now get clobbered by the right values. We must put the values in both the out registers in the trapframe and in td_retval because init calls exec but fails to transfer the return value into the out registers. This fixes a bug where the first exec after init would pass junk to the c runtime, instead of a pointer to the argument strings. A better solution would be to return EJUSTRETURN on success from execve. Adjust for change in pmap_bootstraps prototype. Map the message buffer after the trap table is setup. We will fault on it immediately. |
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| bin | ||
| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| kerberosIV | ||
| lib | ||
| libexec | ||
| release | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.upgrade | ||
| README | ||
| UPDATING | ||
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, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. 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, documentation for which can be found at: http://www.freebsd.org/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you have to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/i386/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/User commands. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberosIV Kerberos package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/handbook/synching.html