preserve-emulation/xemu: Original Xbox Emulator for Windows, macOS, and Linux (Active Development) - xemu

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aliguori baf35cb902 Use signalfd() to work around signal/select race

This patch introduces signalfd() to work around the signal/select race in
checking for AIO completions.  For platforms that don't support signalfd(), we
emulate it with threads.

There was a long discussion about this approach.  I don't believe there are any
fundamental problems with this approach and I believe eliminating the use of
signals is a good thing.

I've tested Windows and Linux using Windows and Linux guests.  I've also checked
for disk IO performance regressions.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5187 c046a42c-6fe2-441c-8c8c-71466251a162

2008-09-10 15:45:19 +00:00

audio

Revert a part of r5087 that didn't need fixing (thanks to malc for spotting)

2008-08-27 18:43:53 +00:00

darwin-user

variable dynamic translation buffer size

2008-05-28 12:30:31 +00:00

fpu

Fix math warnings on OpenBSD -current

2008-08-24 10:29:29 +00:00

alpha: only print debug information to the log file

2008-09-07 21:00:01 +00:00

keymaps

Improve jp106 keyboard support, by Akio Takebe.

2008-07-07 19:29:49 +00:00

linux-user

alpha: only print debug information to the log file

2008-09-07 21:00:01 +00:00

pc-bios

bios: update from bochs release 2.3.7

2008-08-21 03:14:29 +00:00

slirp

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +00:00

target-alpha

fix alpha cmovxx instruction

2008-09-05 19:07:53 +00:00

target-arm

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

target-cris

CRIS: Mask off the cache selection bit after MMU translations.

2008-09-05 17:17:55 +00:00

target-i386

Fix up pxe boot (Glauber Costa)

2008-09-09 14:49:02 +00:00

target-m68k

Fix swapped mvz/mvs instructions.

2008-09-05 12:33:31 +00:00

target-mips

TCG fixes for target-mips

2008-09-05 14:19:17 +00:00

target-ppc

ppc: Convert op_subf to TCG

2008-09-05 14:19:51 +00:00

target-sh4

sh4: CPU versioning.

2008-09-02 16:18:28 +00:00

target-sparc

Implement ldxfsr/stxfsr, fix ld(x)fsr masks, convert to TCG

2008-09-09 19:02:49 +00:00

tcg

TCG: Use x86-64 zero extension instructions.

2008-09-07 18:07:39 +00:00

tests

Make the tests run when built with experimental gcc-cris 4.4. Prettify the logs.

2008-06-06 11:07:50 +00:00

.gitignore

Add gitignore file

2008-09-09 17:15:28 +00:00

a.out.h

64bit->win32 cross build fix.

2007-03-04 00:52:16 +00:00

aes.c

Fix miscellaneous minor things, by Andre Przywara.

2007-12-17 03:15:52 +00:00

aes.h

…

alpha-dis.c

find -type f | xargs sed -i 's/[\t ]$//g' # on most files

2007-09-16 21:08:06 +00:00

alpha.ld

…

arm-dis.c

Update ARM disassembler.

2007-11-10 17:38:00 +00:00

arm-semi.c

Add missing return in arm-semi, by Laurent Desnogues.

2008-07-01 16:40:04 +00:00

arm.ld

Link ARM prologue closer to code segment to avoid a build failure

2008-07-10 17:21:31 +00:00

block_int.h

Revert fix for CVE-2008-0928. Will be fixed in a different way later.

2008-03-11 23:30:22 +00:00

block-bochs.c

Split block API from vl.h.

2007-11-11 02:51:17 +00:00

block-cloop.c

Split block API from vl.h.

2007-11-11 02:51:17 +00:00

block-cow.c

Split block API from vl.h.

2007-11-11 02:51:17 +00:00

block-dmg.c

Add qemu_realloc(), by Gerd Hoffmann.

2008-08-06 08:37:17 +00:00

block-nbd.c

Remove unnecessary #includes from block-nbd.c

2008-08-19 19:10:38 +00:00

block-parallels.c

Split block API from vl.h.

2007-11-11 02:51:17 +00:00

block-qcow2.c

qcow2: Try to aggregate free clusters and freed clusters (Laurent Vivier)

2008-08-14 18:11:52 +00:00

block-qcow.c

Remove dead-code (else-block) from block-qcow.c, by Marc Bevand.

2008-06-05 22:00:45 +00:00

block-raw-posix.c

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

block-raw-win32.c

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

block-vmdk.c

Fix OpenBSD linker warnings

2008-08-21 17:58:08 +00:00

block-vpc.c

Fix char* signedness, by Andre Przywara.

2007-12-16 03:16:05 +00:00

block-vvfat.c

Fix OpenBSD linker warnings

2008-08-21 17:58:08 +00:00

block.c

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

block.h

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

bswap.h

e1000: fix unaligned access

2008-03-28 22:30:48 +00:00

Changelog

Update

2008-06-08 01:55:07 +00:00

check_ops.sh

Fixes for s/390 host support, by Bastian Blank.

2007-11-18 21:22:10 +00:00

cocoa.m

Let the USB tablet reach the far bottom and right pixels

2008-03-10 19:34:27 +00:00

configure

Fix libvdeplug link test.

2008-09-07 16:42:53 +00:00

console.c

Fix typo in console.c comment

2008-09-02 00:09:16 +00:00

console.h

add comment for DisplayState->idle

2008-08-22 09:03:17 +00:00

COPYING

…

COPYING.LIB

…

cpu-all.h

Avoid compiler warning.

2008-07-03 21:36:35 +00:00

cpu-defs.h

Move interrupt_request and user_mode_only to common cpu state.

2008-07-01 20:01:19 +00:00

cpu-exec.c

Support for address masking

2008-07-17 12:53:05 +00:00

cris-dis.c

Teach the CRIS disassembler to stay within the provided buffer.

2008-05-06 08:45:10 +00:00

curses_keys.h

Typo in curses_keys.h.

2008-03-18 06:55:27 +00:00

curses.c

Handle terminating signals (Gerd Hoffmann)

2008-08-21 20:08:03 +00:00

cutils.c

Prevent guest reusing host memory allocations.

2008-06-09 13:47:45 +00:00

d3des.c

Some little fixes on QEMU

2008-09-06 16:31:30 +00:00

d3des.h

Actually add d3des implementation files.

2007-08-25 02:09:50 +00:00

dis-asm.h

Fix OpenBSD linker warnings

2008-08-21 17:58:08 +00:00

disas.c

Fix warnings that would be generated by gcc -Wstrict-prototypes

2008-08-17 20:21:51 +00:00

disas.h

…

dyngen-exec.h

Preliminary OpenBSD host support (based on OpenBSD patches by Todd T. Fries)

2008-08-15 18:33:42 +00:00

dyngen.c

Fix some warnings that would be generated by gcc -Wmissing-prototypes

2008-08-17 20:26:25 +00:00

elf_ops.h

Add statics and missing #includes for prototypes.

2007-11-18 01:44:38 +00:00

elf.h

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +00:00

exec-all.h

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

exec.c

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +00:00

gdbstub.c

Fix OpenBSD linker warnings

2008-08-21 17:58:08 +00:00

gdbstub.h

Allow gdbstub to connect over any serial device.

2007-02-22 01:48:01 +00:00

gen-icount.h

Spelling fixes, spotted by Stuart Brady.

2008-06-30 17:22:19 +00:00

host-utils.c

Code used by the linux-user targets should not use vl.h.

2007-11-05 13:01:41 +00:00

host-utils.h

Fix always_inline definition for Darwin, by Andreas Faerber.

2008-06-05 22:55:54 +00:00

hostregs_helper.h

Fix 64-bit host register corruption.

2007-02-04 13:37:44 +00:00

hpet.h

Add a local copy of hpet.h.

2007-09-16 20:03:23 +00:00

hppa-dis.c

HPPA (PA-RISC) host support

2008-04-12 20:14:54 +00:00

hppa.ld

HPPA (PA-RISC) host support

2008-04-12 20:14:54 +00:00

i386-dis.c

Revert broken part of r5044 (thanks to Igor Kovalenko for spotting)

2008-08-26 17:07:04 +00:00

i386.ld

Add TLS sections.

2008-05-31 16:21:33 +00:00

ia64.ld

…

keymaps.c

Miscellaneous VNC related fixes from Xen forwarded by Matthew Kent.

2007-10-30 22:38:53 +00:00

kqemu.c

Fix error reporting under Win32 (CreateFile does not set errno)

2008-06-08 01:55:09 +00:00

kqemu.h

kqemu API change - allow use of kqemu with 32 bit QEMU on a 64 bit host

2008-05-30 20:48:25 +00:00

LICENSE

use the TCG code generator

2008-02-01 10:50:11 +00:00

loader.c

Remove most uses of phys_ram_base (initial patch by Ian Jackson)

2008-05-12 17:22:13 +00:00

m68k-dis.c

find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex.

2007-09-17 08:09:54 +00:00

m68k-semi.c

Break up vl.h.

2007-11-17 17:14:51 +00:00

m68k.ld

…

MAINTAINERS

Update maintainers list.

2008-08-25 22:26:03 +00:00

Makefile

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

Makefile.target

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

mips-dis.c

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +00:00

mips.ld

Linker scripts for MIPS hosts.

2007-05-05 19:24:38 +00:00

mipsel.ld

Linker scripts for MIPS hosts.

2007-05-05 19:24:38 +00:00

monitor.c

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

nbd.c

qemu-nbd: remove useless parameter from nbd_negotiate() (Laurent Vivier)

2008-09-10 15:23:19 +00:00

nbd.h

qemu-nbd: remove useless parameter from nbd_negotiate() (Laurent Vivier)

2008-09-10 15:23:19 +00:00

net-checksum.c

Add IP checksumming functions to qemu (Gerd Hoffmann)

2008-07-29 19:40:04 +00:00

net.h

Add IP checksumming functions to qemu (Gerd Hoffmann)

2008-07-29 19:40:04 +00:00

osdep.c

Preliminary OpenBSD host support (based on OpenBSD patches by Todd T. Fries)

2008-08-15 18:33:42 +00:00

osdep.h

add container_of() macro to osdep.h (Gerd Hoffmann)

2008-08-21 20:11:11 +00:00

ppc64.ld

Correct version of Heikki Lindholms ppc64.ld script

2008-08-20 22:39:24 +00:00

ppc-dis.c

find -type f | xargs sed -i 's/[\t ]$//g' # on most files

2007-09-16 21:08:06 +00:00

ppc.ld

Update ppc.ld to work with newer binutils.

2007-04-28 19:00:30 +00:00

qemu_socket.h

Use WIN32_LEAN_AND_MEAN, by Stefan Weil.

2007-12-17 04:42:29 +00:00

qemu-binfmt-conf.sh

Code provision for n32/n64 mips userland emulation. Not functional yet.

2007-09-30 01:58:33 +00:00

qemu-char.h

qemu-char.h: Fix IOCTL values

2008-08-22 21:25:00 +00:00

qemu-common.h

Add qemu_realloc(), by Gerd Hoffmann.

2008-08-06 08:37:17 +00:00

qemu-doc.texi

Add image format option for USB mass-storage devices

2008-08-21 22:24:32 +00:00

qemu-img.c

Fix OpenBSD linker warnings in qemu-img

2008-08-24 10:30:33 +00:00

qemu-img.texi

New qemu-img convert -B option, by Marc Bevand.

2008-06-05 21:53:49 +00:00

qemu-lock.h

Multithreaded locking fixes.

2008-06-07 20:50:51 +00:00

qemu-log.h

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

qemu-malloc.c

Fix error introduced by r5044

2008-08-25 20:03:28 +00:00

qemu-nbd.c

qemu-nbd: remove useless parameter from nbd_negotiate() (Laurent Vivier)

2008-09-10 15:23:19 +00:00

qemu-nbd.texi

Allow QEMU to connect directly to an NBD server, by Laurent Vivier.

2008-07-03 13:41:03 +00:00

qemu-tech.texi

Spelling fixes, by Stefan Weil.

2008-06-03 19:51:57 +00:00

qemu-timer.h

Break up vl.h.

2007-11-17 17:14:51 +00:00

readline.c

Handle history additions properly, by Andreas Schwab.

2007-12-17 20:31:43 +00:00

README

…

s390-dis.c

Revert licensing to "GPLv2 or later", by Ulrich Hecht.

2008-01-17 13:56:59 +00:00

s390.ld

…

sdl_keysym.h

…

sdl.c

add DisplayState->idle (Samuel Thibault)

2008-08-21 20:08:55 +00:00

sh4-dis.c

find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex.

2007-09-17 08:09:54 +00:00

softmmu_defs.h

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

softmmu_exec.h

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

softmmu_header.h

Fix some warnings that would be generated by gcc -Wredundant-decls

2008-08-30 09:51:20 +00:00

softmmu_template.h

Add instruction counter.

2008-06-29 01:03:05 +00:00

softmmu-semi.h

suppressed tgetx and tputx (initial patch by Thayne Harbaugh)

2007-11-16 10:46:05 +00:00

sparc64.ld

Map code buffers below 2G on Sparc64

2008-07-26 15:05:57 +00:00

sparc-dis.c

More detabification

2007-10-06 11:28:21 +00:00

sparc.ld

More detabification

2007-10-06 11:28:21 +00:00

sys-queue.h

Move audio/sys-queue.h => sys-queue.h

2008-07-29 20:08:37 +00:00

sysemu.h

Move CPU save/load registration to common code.

2008-06-30 16:31:04 +00:00

tap-win32.c

Use WIN32_LEAN_AND_MEAN, by Stefan Weil.

2007-12-17 04:42:29 +00:00

texi2pod.pl

Update texi2pod.pl.

2008-02-04 14:47:49 +00:00

thunk.c

Fix attempt to inline recursive functions.

2007-11-19 01:06:24 +00:00

thunk.h

Fix attempt to inline recursive functions.

2007-11-19 01:06:24 +00:00

TODO

update

2008-05-13 18:26:52 +00:00

translate-all.c

Small cleanup of gen_intermediate_code(_internal), by Laurent Desnogues.

2008-07-18 18:01:29 +00:00

uboot_image.h

Simple u-boot image loading support.

2007-03-06 23:52:01 +00:00

usb-linux.c

husb: Fixup printfs and stuff based on the review comments (Max Krasnyansky)

2008-08-21 19:32:29 +00:00

VERSION

version change

2008-01-06 17:10:54 +00:00

vgafont.h

Some little fixes on QEMU

2008-09-06 16:31:30 +00:00

vl.c

Use signalfd() to work around signal/select race

2008-09-10 15:45:19 +00:00

vnc_keysym.h

Improve jp106 keyboard support, by Akio Takebe.

2008-07-07 19:29:49 +00:00

vnc.c

Fix most warnings that would be caused by gcc flag -Wundef

2008-09-06 17:47:39 +00:00

vnchextile.h

Fix wrong signedness, by Andre Przywara.

2007-12-16 03:02:09 +00:00

x86_64.ld

…

x_keymap.c

Add statics and missing #includes for prototypes.

2007-11-18 01:44:38 +00:00

README

Read the documentation in qemu-doc.html.

Fabrice Bellard.