Instead of keeping lots of special hacks for Solaris, just rename the
field of struct i386_segment_regs, so we don't need special care anymore.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1548>
fix warning:
> In file included from ../hw/xfree86/int10/x86emu.c:11:
> ../hw/xfree86/x86emu/prim_ops.c:2478:9: warning: taking the absolute value of unsigned type 'x86emuu32' (aka 'unsigned int') has no effect [-Wabsolute-value]
> if (abs(div) > 0xff) {
> ^
> ../hw/xfree86/x86emu/prim_ops.c:2478:9: note: remove the call to 'abs' since unsigned values cannot be negative
> if (abs(div) > 0xff) {
> ^~~
> ../hw/xfree86/x86emu/prim_ops.c:2502:9: warning: taking the absolute value of unsigned type 'x86emuu32' (aka 'unsigned int') has no effect [-Wabsolute-value]
> if (abs(div) > 0xffff) {
> ^
> ../hw/xfree86/x86emu/prim_ops.c:2502:9: note: remove the call to 'abs' since unsigned values cannot be negative
> if (abs(div) > 0xffff) {
> ^~~
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1428>
The header uses macros from Xfuncproto.h - right now it just works by pure
accident since consumers of this header indirectly include Xfuncproto.h
by totally different roads. This is a fragile programming style that deserved
to be cleand up.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1331>
Since we're not using C++ code, thus no trouble w/ name mangling, we don't
need explicit extern "C" { ... } sections in the code. (If we would, we
have to have it in many other places, too)
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1331>
Makes the 4-byte cases match those for 1- & 2-byte handling,
moving the break from being unconditionally hit the first time
through the to loop to after the loop is done.
Fixes Solaris Studio compiler warnings:
"prim_ops.c", line 2626: warning: end-of-loop code not reached
"prim_ops.c", line 2692: warning: end-of-loop code not reached
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Most (but not all) of these were found by using
codespell --builtin clear,rare,usage,informal,code,names
but not everything reported by that was fixed.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
With -Wformat-nonliteral and a debug build you'd get yelled at here:
../hw/xfree86/x86emu/x86emu/debug.h:188:9: warning: format not a string literal, argument types not checked [-Wformat-nonliteral]
To fix this, rewrite the printf code to actually use varargs and the
appropriate format attribute. All callers of DECODE_PRINTF() pass a
string with no % specifiers, so we pass that as the argument to
printf("%s"). For DECODE_PRINTF2() we just pass the args through.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Warnings come from the fact that PRIx32 is not used for printing 32 bit
values instead of "%lx", and "%lx" evaluates to a 64 bit long on 64 bit
systems while PRIx32 always evaluates to the right type for the
respective arch.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This is a work in progress that builds Xvfb, Xephyr, Xwayland, Xnest,
and Xdmx so far. The outline of Xquartz/Xwin support is in tree, but
hasn't been built yet. The unit tests are also not done.
The intent is to build this as a complete replacement for the
autotools system, then eventually replace autotools. meson is faster
to generate the build, faster to run the bulid, shorter to write the
build files in, and less error-prone than autotools.
v2: Fix indentation nits, move version declaration to project(), use
existing meson_options for version-config.h's vendor name/web.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
R_SP is also defined in <sys/ucontext.h> on m68k. Also remove duplicate
definitions.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Andreas Schwab <schwab@suse.de>
(Sorry for double posting)
I repost this patch because I havn't got any replies from maintainers
since I posted the initial patch back in March.
Some instructions are not emulated correctly by x86emu when they
are prefixed by the 0x66 opcode.
I've identified problems in the emulation of these intructions: ret,
enter, leave, iret and some forms of call.
Most of the time, the problem is that these instructions should push or
pop 32-bit values to/from the stack, instead of 16bit, when they are
prefixed by the 0x66 special opcode.
The SeaBIOS project aims to produce a complete legacy BIOS
implementation as well as a VGA option ROM, entirely written in C and
using the GCC compiler.
In 16bit code produced by the GCC compiler, the 0x66 prefix is used
almost everywhere. This patch is necessary to allow the SeaBIOS VGA
option ROM to function with Xorg when using the vesa driver.
SeaBIOS currently use postprocessing on the ROM assembly output to
replace the affected instruction with alternative unaffected instructions.
This is obviously not very elegant, and this fix in x86emu would be
more appropriate.
v2: - Decrement BP instead of EBP in accordance with the Intel Manual
- Assign EIP instead of IP when poping the return address from the
stack in 32-bit operand size mode in ret_far_IMM, ret_far, and iret
- When poping EFLAGS from the stack in iret in 32-bit operand size
mode, apply some mask to preserve Read-only flags.
v3: - Rebase
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Julian Pidancet <julian.pidancet@gmail.com>
This gets the easy warnings, mostly constant string problems.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
When building on Solaris with _XOPEN_SOURCE set to a recent XPG release,
<stdlib.h> and other core headers start including <sys/regset.h>, which
has a bunch of unfortunately named macros such as "CS", "ES", etc. for
x86 & x64 registers which clash with existing variable & struct member
names in Xorg - so #undef these so they don't interfere with our use.
(Yes, have filed a bug against the system headers for exposing these,
but this solves the problem for building on existing releases.)
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
newer automake gets quite noisy about this.
hw/xfree86/ddc/Makefile.am:7: warning:
'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')
and many more of these.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:
-bap
-psl
-T PrivatePtr
-T pmWait
-T _XFUNCPROTOBEGIN
-T _XFUNCPROTOEND
-T _X_EXPORT
The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.
The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.
The comparison was done with this script:
dir1=$1
dir2=$2
for dir in $dir1 $dir2; do
(cd $dir && find . -name '*.o' | while read file; do
dir=`dirname $file`
base=`basename $file .o`
dump=$dir/$base.dump
objdump -d $file > $dump
done)
done
find $dir1 -name '*.dump' | while read dump; do
otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
diff -u $dump $otherdump
done
Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Strings are all pointers to literal constants, just used as input
to printf calls when debugging is enabled.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This batch is the straightforward set - others are more complex and
need more analysis to determine right size to pass.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Patch produced with:
unifdef -UNO_INLINE -B
This change isn't relevant to the similar code in
hw/xfree86/common/compiler.h, because x86emu is expected to someday move
out of xserver entirely and so should not depend on any xserver headers.
Also, some platforms apparently do have NO_INLINE versions of
compiler.h.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
cc2c73ddcb4370a7c3ad439cda4da825156c26c9's three-cent titanium tax
doesn't go too far enough. Fix the rest of the call and jmp
instructions to handle the data prefix correctly.
Reference: Intel 64 and IA-32 Architectures Software Developer's Manual
Volume 2A: Instruction Set Reference, A-M
http://www.intel.com/Assets/PDF/manual/253666.pdf
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=24348
Before (data flag ignored -> broken):
66 DATA:
e944f1 JMP 1ff6
After (fixed):
66 DATA:
e944f1ffff JMP 00001ff8
This subtle difference in the length of decoded instruction meant
that the VBE call jumped to the routine setting AX=0x14F (VBE Failed)
instead of the routine that set AX=0x4F (VBE success).
The ability to run the same code in vm86 significantly aided the
debugging of this issue. Those X.org developers who would like to drop
vm86 better take special care towards _all_ vesa bugs, as those will
expose further issues.
Patch applies easily to even xserver 1.4.2.
Signed-off-by: Luc Verhaegen <libv@skynet.be>
Tested-by: Luc Verhaegen <libv@skynet.be>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Fixes x86emu builds when using non-gnu compilers now that u64 is required
Before this fix, the u64 type would not be defined, causing
x86emu/sys.c to fail to build:
"sys.c", line 102: syntax error before or at: ldq_u
"sys.c", line 102: syntax error before or at: *
Since Keith requested using <stdint.h>, converted all the x86emu
typedefs to use the stdint types.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Acked-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Removes Alpha assembly, and probably works around unaligned accesses on
other sensitive platforms.
Signed-off-by: Matt Turner <mattst88@gmail.com>
Acked-by: Adam Jackson <ajax@redhat.com>
Compiled-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
Favorite deleted line was definitely
/* to cope with broken egcs-1.1.2 :-(((( */
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Spiritual revert of 1fa4de80fc. Intel's C
compiler claims to be gcc-compatible; if they're not defining the same
macros as gcc then that's their bug, not ours. Even if we were to do
this aliasing we should do it once and for all in servermd.h.
Yes, this is a 486+ instruction and thus not strictly legal in vm86
mode, but enough BIOSes use it (looking at you VIA) that we might as
well implement it.
After trying to switch from X to VT (or just quit) the video-amd driver
attempts to issue INT 10/0 to go to mode 3 (VGA). The emulator, running
the BIOS code, would then spit out:
c000:0282: A2 ILLEGAL EXTENDED X86 OPCODE!
The opcode was 0F A2, or CPUID; it was not implemented in the emulator.
This simple patch, against 1.3.0.0, handles the CPUID instruction in one of
two ways:
1) if ran on __i386__ or __x86_64__ then it calls the CPUID instruction
directly.
2) if ran elsewhere it returns a canned 486dx4 set of values for
function 1.
This fix allows the video-amd driver to switch back to console mode,
with the GSW BIOS.
Thanks to Symbio Technologies for funding my work, and ThinCan for
providing hardware :)
Signed-off-by: Bart Trojanowski <bart@jukie.net>
Acked-by: Eric Anholt <eric@anholt.net>
Enrico Weigelt, metux IT consult
Brian Ruthven
Alan Coopersmith
Povilas Kanapickas
Sven Joachim
Adam Jackson
Lyude Paul
Eric Anholt
Andreas Schwab
Julian Pidancet
Peter Hutterer
Keith Packard
Jamey Sharp
Luc Verhaegen
Matt Turner
Christian Zander
Tiago Vignatti
Alan Coopersmith
Paulo Cesar Pereira de Andrade
Julien Cristau
Bart Trojanowski