Kernel mode code on x86_64 needs to be built with -mno-red-zone as
interrupts would corrupt the red zone if it were in use. However, the
kernel is linked with libsupc++, which was not compiled with
-mno-red-zone. If an interrupt occurred in libsupc++ code the red zone
would get corrupted. This was causing random panics, particularly under
heavy system load. Therefore, on x86_64 a separate build of libsupc++
with -mno-red-zone is now done for the kernel to use. Note: this commit
will require a rerun of configure and rebuild of cross tools.
Added the necessary build flags for modules, and added a module (dpc)
to the floppy image for x86_64 builds for testing purposes. The module
gets loaded correctly and its code runs without issue. Only non-trivial
addition is the different method for generating kernel.so, this is
explained in the kernel Jamfile.
23139 into trunk, with roughly the following changes (for details svn
log the branch):
* The int 99 syscall handler is now fully in assembly.
* Added a sysenter/sysexit handler and use it on Pentiums that support
it (via commpage).
* Got rid of i386_handle_trap(). A bit of functionality was moved into
the assembly handler which now uses a jump table to call C functions
handling the respective interrupt.
* Some optimizations to get user debugger support code out of the
interrupt handling path.
* Introduced a thread::flags fields which allows to skip handling of
rare events (signals, user debug enabling/disabling) on the
common interrupt handling path.
* Got rid of the explicit iframe stack. The iframes can still be
retrieved by iterating through the stack frames.
* Made the commpage an architecture independent feature. It's used for
the real time data stuff (instead of creating a separate area).
* The x86 CPU modules can now provide processor optimized versions for
common functions (currently memcpy() only). They are used in the
kernel and are provided to the userland via commpage entries.
* Introduced build system feature allowing easy use of C structure
member offsets in assembly code.
Changes after merging:
* Fixed merge conflict in src/system/kernel/arch/x86/arch_debug.cpp
(caused by refactoring and introduction of "call" debugger command).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23370 a95241bf-73f2-0310-859d-f6bbb57e9c96
stale dependencies after renaming or deleting object files.
This will avoid link error like the one that was caused by the
recent mesa update.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@20148 a95241bf-73f2-0310-859d-f6bbb57e9c96
Fixed the build of most of targets using these rules. Though the build can be still broken, feel free to fix.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18521 a95241bf-73f2-0310-859d-f6bbb57e9c96
files, too.
* Added a temporary icon for the kernel until Stephan comes up with a better
one (hint hint!) :-))
* This even fixes bug #648.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17825 a95241bf-73f2-0310-859d-f6bbb57e9c96
{HAIKU,HOST,TARGET}_KERNEL_PIC_{CC,LINK}FLAGS which define the
compiler/linker flags specifying the kind of position independence
the kernel shall have. For x86 we had and still have -fno-pic, but the
PPC kernel has -fPIE (position independent executable) now, as we
need to relocate it.
* The boot loader relocates the kernel now. Mostly copied the relocation
code from the kernel ELF loader. Almost completely rewrote the PPC
specific relocation code, though. It's more correct and more complete now
(some things are still missing though).
* Added boot platform awareness to the kernel. Moved the generic
Open Firmware code (openfirmware.c/h) from the boot loader to the kernel.
* The kernel PPC serial debug output is sent to the console for the time
being.
* The PPC boot loader counts the CPUs now and allocates the kernel stacks
(made OF device iteration a bit more flexible on the way -- the search
can be restricted to subtree). Furthermore we really enter the kernel...
(Yay! :-) ... and crash in the first dprintf() (in the atomic_set()
called by acquire_spinlock()). kprintf() works, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15756 a95241bf-73f2-0310-859d-f6bbb57e9c96
effect that we were linking not only against the complete glue code, but
also against libroot.so. Now we explicitly link against
crtbegin.o/crtend.o only.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15545 a95241bf-73f2-0310-859d-f6bbb57e9c96
provides it via BuildConfig. We link everything against it.
* Temporarily pass --no-undefined to the linker. Should be in the
compiler specs, but isn't in the gcc 4 I built.
* Define _BEOS_R5_COMPATIBLE_ macro when building with gcc 2. Can be
used in headers for instance.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14913 a95241bf-73f2-0310-859d-f6bbb57e9c96
we use the libstdc++ (including it's headers) that comes with the
compiler.
* Apparently option "-I-" has been deprecated, which is why we now treat the
include stuff a bit differently.
* Removed avcodec from the Haiku image, since the library wouldn't build with
gcc 4, and I'm not in the mood to fix that (declaration of an array of an
incomplete type).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14876 a95241bf-73f2-0310-859d-f6bbb57e9c96
