This makes ARM64 target compile more files. This patch is one of
series of patches to support new architecture, as fixes in many
places are required just to compile the code.
Signed-off-by: Jaroslaw Pelczar <jarek@jpelczar.com>
Change-Id: Ia060612733cd3a0fcb781fec449da164ed635b8e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1807
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
It now lives in OS.h. The idea is that this will now be
accessible to userland applications, so userland memory
is protected from access by other processes, just as
kernel memory is.
No functional change (the constants are still the same,
though I've changed some to use shifts to make clear
which bits are allocated are which are unused.)
The sparc openboot implementation can run executables in the a.out
format. We used to generate these using objcopy, but this does not work
anymore as binutils is deprecating a.out format support.
- Import elf2aout from FreeBSD
- Add some missing bits to our elf.h and have a copy of it in the build
headers so it can be used to build elf2aout for the host platform
(tested for Linux)
- Use it to generate the sparc haiku_loader
- Adjust the bootloader linker script to have two "program headers": one
that is not loadable and contains the ELF headers, and the second one
that is loadable and contains the actual code and data. Unlike
objcopy, elf2aout relies only on the program headers to know what to
put in its output file (sections are ignored), so this is required
otherwise we end up with the ELF header nested inside the a.out file,
and everything offset from the expected load address as a result.
Confirmed that this allows to build the loader and run it as far as
before, so I'm back to needing to implement some MMU support now.
FreeBSD commit: 7551d83c353e040b32c6ac205e577dbc5f2c8955
Change-Id: I90b48e578fa7f148aeddd8c5998fdddc5cfa73fa
Reviewed-on: https://review.haiku-os.org/c/1557
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Gets the stage0 bootstrap to run.
Imlementation is probably nonsense at this point.
Change-Id: I10876efbb54314b864c0ad951152757cdb2fd366
Reviewed-on: https://review.haiku-os.org/c/1061
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
No "real" functional change, but this causes GCC7 to throw errors when
these functions are declared without the image_id argument, which
in some files they were (as this commit repairs.)
This change is largely inconsequential on x86, but on callee-cleanup-args
targets, leaving out the argument would probably cause stack corruption.
Previously, __haiku_init_before was a symbol that was included in
each (shared) object, and so it could be used to determine what
one we were in. Now, there are no such universal symbols that
are declared private to only the object, so we have to use
a different approach.
__func__ is defined as a const char* at the very beginning of
every function it's used in, set to a string of the function name
only, i.e., the arguments and return type are left off. So while
including that is perhaps not quite optimal, in practice this
definition is used extremely rarely (it was introduced by Haiku,
and it is used in only 2 applications at all that I could find --
WebKit and Canna.)
There really isn't any other way to get a pointer that we know
for certain is within the current object besides this one
without inserting one, but that really isn't merited just for this.
(__builtin_return_address() has problematic semantics wrt. inlining,
including linker-inlining.) So this will have to do.
It is only used as an argument to _kern_load_image directly, not to
any of the load_image functions in image.h, so it belongs in a syscall-
specific header like other such constants.
No functional change intended.
This allows Clang builds (linked with our cross binutils) to
at least start runtime_loader and then try to load launch_daemon.
That fails with an infinite loop somewhere...
It will probably be just stubs for the significant future, but,
here it is anyway.
Regarding the naming: Yes, the official name is "aarch64." However,
Linux, FreeBSD, and Zircon all call it "arm64", and so we will do the same.
I've configured it initially to be a Clang-only port, making no
changes to GCC buildtools whatsoever here. We'll see if that sticks,
however.
* gcc 7.x defines __arm__ and __ARM__ (and others)
* clang defines __arm__ and __arm
* cleanup a few related ifdef vs if macros
Change-Id: I5da4bafac590f6fa3e10e543688001c2449f840d
This should have been done along with the time_t change, but I forgot
to check this then.
Technically this breaks ABI against BeOS, but:
1. BeOS used an int32, so we'd already slightly broken ABI here
2. Only one thing at HaikuArchives (VMwareAddons) and one recipe at HaikuPorts
(samba) uses this function at all.
If it turns out some critical BeOS app uses this, then I guess we can enclose
GCC2 guards around it, but since I can't find any evidence of that, I'm
pushing it without them for now.
- This is how it is named in other versions of elf.h (Linux, glibc, possibly more)
- ELF_MAGIC is used by libelf for the same thing, and the defines conflicts,
breaking libelf build on Haiku.
* The Haiku specific notes contain a structure size field, now.
* Change the type of the count and size fields in the Haiku specific
notes to uint32 also for 64 bit ELF. The size field for a note is a
uint32 anyway.
* Add function core_dump_write_core_file(). It writes a core file for
the current thread's team. The file format is similar to that of
other OSs (i.e. ELF with PT_LOAD segments and a PT_NOTE segment), but
most of the notes are Haiku specific (infos for team, areas, images,
threads). More data will probably need to be added.
* Add team flag TEAM_FLAG_DUMP_CORE, thread flag
THREAD_FLAGS_TRAP_FOR_CORE_DUMP, and Team property coreDumpCondition,
a condition variable available while a core dump is progress. A
thread that finds its flag THREAD_FLAGS_TRAP_FOR_CORE_DUMP set before
exiting the kernel to userland calls core_dump_trap_thread(), which
blocks on the condition variable until the core dump has finished. We
need the team's threads to stop so we can get their CPU state (and
have a generally unchanging team state while writing the core file).
* Add user debugger message B_DEBUG_WRITE_CORE_FILE. It causes
core_dump_write_core_file() to be called for the team.
* Dumping core as an immediate effect of a terminal signal has not been
implemented yet, but that should be fairly straight forward.
* Added a directory argument for notify_{stat/attribute}_changed().
* This allows to watch only a directory, and get the notifications for
all of its files, not just add/remove entry notifications.
Make a version of elf.h (assembled from the private header files
elf_common.h, elf32.h and elf64.h, and including Haiku's extensions for
C++) available to applications ported from UNIX.
Signed-off-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
* Fix incorrect cpu vendor name mapping
* Add additional CPU architectures
* Add additional CPU vendors
* Rework PowerPC arch_system_info passing
PVR back for cpu model
This field forces kernel to track each CPU load all the time. It is not
a problem with the current scheduler on a multicore systems, but on
single core machnies or with any other future scheduler this field may
become just an unnecessary burden. It isn't difficult for an application
to compute CPU load by itself when it needs it.
* My BeagleBone gcc defines __ARMEL__ but not
__ARM__ which breaks the native tool builds
* As ARM was originally Little Endian, we assume
__ARM__ means as such.
* Look for Big Endian ARM and define the needed big
endian preprocessors
- The argument buffer contained in the debug_{pre,post}_syscall message structures wasn't large enough to accomodate all
arguments for some syscalls on x86-64, which could potentially have led to kernel memory corruption when using syscall
tracing via the debug API. As such, enlarge it to accomodate 64-bit platforms as well.
- Adjust TeamDebugger/SyscallInfo to discriminate the target architecture and read the arguments when trapping console
output. Gets the latter working on x86-64.
* If at least one image is either B_HAIKU_ABI_GCC_2_ANCIENT or
B_HAIKU_ABI_GCC_2_BEOS almost all areas are marked as executable.
* B_EXECUTE_AREA and B_STACK_AREA are made public. The former is enforced since
the introduction of DEP and apps need it to correctly set area protection.
The latter is currently needed only to recognize stack areas and fix their
protection in compatibility mode, but may also be useful if an app wants
to use sigaltstack from POSIX API.
This address specification is actually not needed since PIC images can be
located anywhere. Only their size is restriced but that is the compiler and
linker concern. Thanks to Alex Smith for pointing that out.
