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58ebc2c313
xemu/include/qemu
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Daniele Buono 58ebc2c313 coroutine: support SafeStack in ucontext backend 
LLVM's SafeStack instrumentation does not yet support programs that make
use of the APIs in ucontext.h
With the current implementation of coroutine-ucontext, the resulting
binary is incorrect, with different coroutines sharing the same unsafe
stack and producing undefined behavior at runtime.
This fix allocates an additional unsafe stack area for each coroutine,
and sets the new unsafe stack pointer before calling swapcontext() in
qemu_coroutine_new.
This is the only place where the pointer needs to be manually updated,
since sigsetjmp/siglongjmp are already instrumented by LLVM to properly
support SafeStack.
The additional stack is then freed in qemu_coroutine_delete.

Signed-off-by: Daniele Buono <dbuono@linux.vnet.ibm.com>
Message-id: 20200529205122.714-2-dbuono@linux.vnet.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-06-23 15:46:05 +01:00
..
atomic128.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
atomic.h qemu/atomic.h: add #ifdef guards for stdatomic.h 2020-03-27 13:42:57 +00:00
base64.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
bcd.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
bitmap.h bitmap: Add bitmap_copy_with_{src|dst}_offset() 2019-07-15 15:39:02 +02:00
bitops.h qemu/bitops.h: Add extract8 and extract16 2020-02-25 20:20:23 +00:00
bswap.h include/qemu/bswap.h: Use __builtin_memcpy() in accessor functions 2019-04-09 18:34:21 +02:00
buffer.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
co-shared-resource.h util: introduce SharedResource 2019-10-28 11:22:31 +01:00
compiler.h compiler.h: Don't use compile-time assert when __NO_INLINE__ is defined 2020-02-28 10:58:41 -08:00
config-file.h Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
coroutine_int.h coroutine: support SafeStack in ucontext backend 2020-06-23 15:46:05 +01:00
coroutine.h coroutine: Add qemu_co_mutex_assert_locked() 2019-10-25 15:18:38 +02:00
cpuid.h util: add util function buffer_zero_avx512() 2020-03-16 23:02:21 +01:00
crc32c.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
ctype.h qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h 2019-06-11 20:22:09 +02:00
cutils.h Memory: Enable writeback for given memory region 2019-12-16 10:46:35 +00:00
dbus.h util: add dbus helper unit 2020-01-06 18:41:32 +04:00
drm.h Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
envlist.h misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
error-report.h error: Fix -msg timestamp default 2019-12-18 08:36:15 +01:00
event_notifier.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
fifo8.h Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
fifo32.h hw: Clean up includes 2016-06-07 18:19:23 +03:00
filemonitor.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
futex.h futex: add missing header guards 2017-10-16 20:57:13 +03:00
guest-random.h util: Add qemu_guest_getrandom and associated routines 2019-05-22 12:38:54 -04:00
hbitmap.h block/dirty-bitmap: improve _next_dirty_area API 2020-03-18 14:03:46 -04:00
help_option.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
host-utils.h includes: Replace QEMU_GNUC_PREREQ with "__has_builtin || !defined(__clang__)" 2018-12-12 10:01:13 +01:00
id.h chardev: generate an internal id when none given 2020-01-07 16:50:09 +04:00
int128.h tcg: Add atomic128 helpers 2016-10-26 08:29:01 -07:00
iov.h block/qcow2: implement .bdrv_co_pwritev(_compressed)_part 2019-08-27 14:58:42 +01:00
iova-tree.h util: remove redundant include of glib.h and add osdep.h 2018-06-29 12:22:28 +01:00
jhash.h Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
job.h job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
lockable.h lockable: fix __COUNTER__ macro to be referenced properly 2020-05-04 16:07:43 +01:00
log-for-trace.h log-for-trace.h: Split out parts of log.h used by trace.h 2018-03-12 11:10:20 +00:00
log.h linux-user: Use `qemu_log' for strace 2020-02-19 11:17:40 +01:00
main-loop.h Wrapper function to wait on condition for the main loop mutex 2020-02-03 11:33:10 +11:00
memfd.h linux-user: add memfd_create 2019-09-11 08:46:17 +02:00
mmap-alloc.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
module.h migration: Add support for modules 2020-02-28 09:24:43 +01:00
notify.h xen / notify: introduce a new XenWatchList abstraction 2019-09-24 12:18:47 +01:00
nvdimm-utils.h mem: move nvdimm_device_list to utilities 2020-02-21 09:15:03 +11:00
option_int.h qemu/queue.h: simplify reverse access to QTAILQ 2019-01-11 15:46:55 +01:00
option.h qemu-img: Move is_valid_option_list() to qemu-img.c and rewrite 2020-04-29 08:01:52 +02:00
osdep.h chardev: Add macOS to list of OSes that support -chardev serial 2020-05-04 14:35:23 +02:00
path.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
plugin-memory.h plugins: implement helpers for resolving hwaddr 2019-10-28 15:12:38 +00:00
plugin.h qemu/plugin: Move !CONFIG_PLUGIN stubs altogether 2020-05-15 15:25:16 +01:00
pmem.h Clean up decorations and whitespace around header guards 2019-05-13 08:58:55 +02:00
processor.h Drop remaining bits of ia64 host support 2018-02-05 18:09:45 +01:00
progress_meter.h job: refactor progress to separate object 2020-03-11 12:42:30 +01:00
qdist.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qemu-plugin.h qemu-plugin.h: add missing include <stddef.h> to define size_t 2020-06-08 16:59:25 +01:00
qemu-print.h qemu-print: New qemu_fprintf(), qemu_vfprintf() 2019-04-18 22:18:59 +02:00
qht.h qht: constify qht_statistics_init 2018-09-26 08:55:54 -07:00
qsp.h qsp: Simplify how qsp_report() prints 2019-04-18 22:18:59 +02:00
queue.h qemu/queue.h: clear linked list pointers on remove 2020-03-09 16:39:20 +00:00
range.h Include qemu/queue.h slightly less 2019-08-16 13:31:52 +02:00
ratelimit.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
rcu_queue.h rcu_queue: add QSLIST functions 2020-02-22 08:26:47 +00:00
rcu.h lockable: fix __COUNTER__ macro to be referenced properly 2020-05-04 16:07:43 +01:00
readline.h readline: add a free function 2018-01-16 14:54:50 +01:00
selfmap.h linux-user: factor out reading of /proc/self/maps 2020-04-07 16:19:49 +01:00
seqlock.h seqlock: fix seqlock_write_unlock_impl function 2020-02-12 16:23:01 +01:00
sockets.h socket: Add backlog parameter to socket_listen 2019-09-03 23:24:42 +02:00
stats64.h Normalize header guard symbol definition. 2019-05-13 08:58:55 +02:00
sys_membarrier.h Normalize header guard symbol definition. 2019-05-13 08:58:55 +02:00
systemd.h Normalize header guard symbol definition. 2019-05-13 08:58:55 +02:00
thread-posix.h qsp: QEMU's Synchronization Profiler 2018-08-23 18:46:25 +02:00
thread-win32.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
thread.h thread: add tsan annotations to QemuSpin 2020-06-16 14:49:05 +01:00
throttle-options.h block: add throttle block filter driver 2017-09-06 10:12:02 +02:00
throttle.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
timed-average.h include: Clean up includes 2016-02-23 12:43:05 +00:00
timer.h Remove support for CLOCK_MONOTONIC not being defined 2020-02-12 16:23:01 +01:00
tsan.h include/qemu: Added tsan.h for annotations. 2020-06-16 14:49:05 +01:00
typedefs.h i386: hvf: Drop HVFX86EmulatorState 2020-06-12 11:20:12 -04:00
unicode.h json: Reject invalid UTF-8 sequences 2018-08-24 20:26:37 +02:00
units.h block: Eliminate the S_1KiB, S_2KiB, ... macros 2019-02-01 13:46:45 +01:00
uri.h Remove unused function declarations 2016-09-15 15:32:22 +03:00
uuid.h acpi: nvdimm: change NVDIMM_UUID_LE to a common macro 2020-05-14 15:03:08 +01:00
vfio-helpers.h Clean up includes 2018-12-20 10:29:08 +01:00
win_dump_defs.h dump: move Windows dump structures definitions 2018-10-02 19:09:12 +02:00
xattr.h include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00
xxhash.h xxhash: match output against the original xxhash32 2018-12-17 06:04:44 +03:00