Most of the problems with tree-vrp stemmed from its deletion of null-pointer
checks (see linked commit in the source.) Now, GCC has a flag to control that,
and with it enabled I can boot to the desktop even with tree-vrp enabled.
* When Download window is initially shown, it is correctly
fully onscreen; however, adding a download resizes the
window such that it becomes partially offscreen. Now,
when the frame is resized, reposition the window onscreen
again.
Fixes#12704
The user iframe and associated data that the syscall entry pushes to the
stack directly were causing the stack to be mis-aligned by 8 bytes. Since
we re-aligned %rsp afterwards, for most usecases this wasn't a problem.
However, since we stored the pre-realinged %rsp in %rbp (as we need it to
access the iframe data), this also meant that anything which depended on
%rbp being 16-byte-aligned would run into serious problems.
As it turned out, GCC 7 assumed that %rbp was indeed 16-byte-aligned, and
so optimized certain accesses to use SSE instructions that depended on this
alignment. Since inside any callstack begining with a syscall this was not
the case, a "General Protection Exception" resulted (see #14160 for an example)
at the first usage of such an instruction. I wasn't really sure what was going
on when it first came up, and so "fixed" it by disabling the GCC optimization
that used such instructions. Replacing the -fdisable... with -mstackrealign thus
also "fixes" the problem, as I discovered earlier today, as it forces GCC to
realign the stack in function prologues.
So instead of rounding %rsp down to the nearest aligned address after the
pushes are complete, we offset %rsp by the amount the pushes are not,
thus fixing both %rsp and %rbp in syscall handling routines. This of course
depends on syscall_rsp being already aligned, which it is.
Thanks to PulkoMandy and js for the advice and guidance (and PulkoMandy
for the ASCII art), as this is essentially my first time working with
kernel assembly.
* Using attribute visibility hidden doesn't get applied if a
function returns a non-class pointer type, so the functions
weren't being hidden for gcc4+ builds, resulting in stack
overflows. Using addr_t, which should be the same size as
void* works around this restriction.
This reverts commit c558f9c8fe.
This reverts commit 44f24718b1.
This reverts commit a69cb33030.
This reverts commit 951182620e.
There have been multiple reports that these changes break mounting NTFS partitions
(on all systems, see #14204), and shutting down (on certain systems, see #12405.)
Until they can be fixed, they are being backed out.
- When in non-interactive mode, i.e. saving a crash report, don't
allow the image debug info loader to automatically grab missing but
available info packages. Otherwise we potentially download very large
packages with the user being entirely unaware, i.e. the 200MB debug
information package now present by default for gcc7's libgcc. This
should eventually be made a configurable preference though.
* define compat_thread_info, compat_rlim_t, compat_rlimit and
compat_thread_creation_attributes to be used when applicable in compatibility
mode.
* handle 32-bit types in _user_spawn_thread(), _user_get_thread_info(),
_user_get_next_thread_info(), _user_getrlimit(), _user_setrlimit(),
other syscalls are compatible as is.
* init TLS for compatibility mode threads.
Change-Id: I483ba95e6198ddac9d240671bcb56fcd2ad831d2
* in load_image_internal(), elf32_load_user_image checks whether the binary
format requires the compatibility mode.
* we then set up the flag THREAD_FLAGS_COMPAT_MODE and the address space size.
* the compatibility mode runtime_loader is hardcoded with x86/runtime_loader.
* if needed, the 64-bit flat_args structure is converted in-place to its 32-bit
layout.
* a 32-bit flat_args isn't handled yet (a 32-bit team execs a 64-bit binary).
Change-Id: Ia6a066bde8d1774d85de29b48dc500e27ae9668f
* define compat_area_info to be used when applicable in
compatibility mode.
* handle 32-bit types in _user_reserve_address_range(), _user_get_area_info(),
_user_get_next_area_info(), _user_transfer_area(), _user_clone_area(),
_user_create_area(), _user_map_file(), other syscalls are compatible as is.
* _get_next_area_info() doesn't work well with a 32-bit address cookie (address
could be in 64-bit range). Instead use _compat_get_next_area_info() which uses
the area id as cookie, though the areas are not ordered by address any more.
Change-Id: Ic7519ca8824aa2d534b0f03ea75a1bf6ae321535
* handle 32-bit types in _user_send_signal(), _user_sigaction(), _user_sigwait(),
_user_set_signal_stack(), _user_restore_signal_frame(), other syscalls are
compatible as is.
Change-Id: I4c8dc47bfa80f36e363d444d2a5a7be6c621606d
* define compat_image_info, compat_extended_image_info
to be used for respective 32-bit types of syscalls in compatibility mode.
* handle 32-bit types in _user_register_image, _user_get_image_info,
_user_get_next_image_info, other syscalls are compatible as is.
Change-Id: Ibbd33e6796208dfa70d869e36bf745bc3e18d330
* define compat_flock, compat_timespec, compat_stat, compat_attr_info,
compat_fs_info, compat_fd_info to be used for respective 32-bit types
of syscalls in compatibility mode.
* handle 32-bit types in common_fcntl(), _user_read_stat(), _user_stat_attr(),
_user_read_index_stat, _user_read_fs_info, _user_write_fs_info,
_user_get_next_fd_info, other syscalls are compatible as is.
Change-Id: I5b372169fe142f67b81fd6c27e0627d5119ba687
Completely unmodified and not wired into anything. Since my Haiku-specific
changes will go through Gerrit, it makes sense to import this first, so that
the diffs are readable.
* With the previous commit, we can now move functions that require
calling mmu_map_physical_memory to where they should have been
originally. This also allows the SMP safe mode menu entries to
be properly generated, now that smp_init is called prior to
main().
Change-Id: I05ddca5273b11cb4846021664c1ea2cf8ba723b7
* mmu_map_physical_address will get called prior to calling main()
which leaves us without a heap, malloc, and new. Instead, use
the kernel args physical allocated range array, and then
convert to our allocated memory region type on-demand.
Change-Id: I265fd165ef7143681e8e40c3686fda1a583c20dc
The call to smp_... is not working since it relies on gKernelArgs being
fully initialized, which it isn't at this stage in the EFI loader. Jessica
says that in order to have that happen, the heap would also need to be
initialized early, which it also is not.
At least you can now force a safe videomode, which is enough for me to
be able to test video drivers.
* Display of the user-ratings listing improved
* When a user-rating is created / edited, the pkg is updated
* Creation date of the user-rating is unpacked shown
* Ability to create a user-rating with a comment, but no numerical rating
* Stars display show grey if no numerical rating present
* Improvements to error reporting when problem arise
* Parsing of the 'revision' field of the version working
* Removed debug logging for the text engine
* Other minor tweaks
Change-Id: I99f881ab1426641ef4177eec2d3bcacc7cb74e95
This reverts commit 4f059c1fc5.
From discussion on the mailing list, it seems I was correct the first time
and Broadwell is Gen8. The confusion comes from the SER5/SOC distinction,
which is not in the Linux driver, and I still don't know which one it really
belongs in.
- Allow to configure the baudrate (it is set by the printer settings,
but the transport didn't care)
- Implement reading from the serial port (some printers will need us to
poll the status and the like, as there is usually no hardware flow
control)
Change-Id: I70ba2566595d5dfa5eda3d518614db6514cb2398
* install syscall handlers in compatibility mode.
* copy the syscall entry in the compatibility commpage, ATM only for Intel
SYSENTER.
* copy the thread exit handler in the compatibility commpage.
Change-Id: Ic350799938815194377d8a4560cb106fe7366cc6
