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glib: update the min required version 

This updates the minimum required glib version to 2.40
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Merge remote-tracking branch 'remotes/berrange/tags/min-glib-pull-request' into staging

glib: update the min required version

This updates the minimum required glib version to 2.40

# gpg: Signature made Fri 29 Jun 2018 12:24:58 BST
# gpg:                using RSA key BE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>"
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E  8E3F BE86 EBB4 1510 4FDF

* remotes/berrange/tags/min-glib-pull-request:
  glib: enforce the minimum required version and warn about old APIs
  glib: bump min required glib library version to 2.40
  util: remove redundant include of glib.h and add osdep.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-06-29 15:04:20 +01:00
parent 109b25045b e71e8cc035
commit 75507f1aba
16 changed files with 73 additions and 464 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
configure vendored
View File

@ -3440,11 +3440,7 @@ fi
##########################################
# glib support probe
if test "$mingw32" = yes; then
glib_req_ver=2.30
else
glib_req_ver=2.22
fi
glib_req_ver=2.40
glib_modules=gthread-2.0
if test "$modules" = yes; then
glib_modules="$glib_modules gmodule-export-2.0"

4
crypto/hash-glib.c
View File

@ -30,11 +30,7 @@ static int qcrypto_hash_alg_map[QCRYPTO_HASH_ALG__MAX] = {
[QCRYPTO_HASH_ALG_SHA224] = -1,
[QCRYPTO_HASH_ALG_SHA256] = G_CHECKSUM_SHA256,
[QCRYPTO_HASH_ALG_SHA384] = -1,
#if GLIB_CHECK_VERSION(2, 36, 0)
[QCRYPTO_HASH_ALG_SHA512] = G_CHECKSUM_SHA512,
#else
[QCRYPTO_HASH_ALG_SHA512] = -1,
#endif
[QCRYPTO_HASH_ALG_RIPEMD160] = -1,
};

36
crypto/hmac-glib.c
View File

@ -17,9 +17,6 @@
#include "crypto/hmac.h"
#include "hmacpriv.h"
/* Support for HMAC Algos has been added in GLib 2.30 */
#if GLIB_CHECK_VERSION(2, 30, 0)
static int qcrypto_hmac_alg_map[QCRYPTO_HASH_ALG__MAX] = {
[QCRYPTO_HASH_ALG_MD5] = G_CHECKSUM_MD5,
[QCRYPTO_HASH_ALG_SHA1] = G_CHECKSUM_SHA1,
@ -126,39 +123,6 @@ qcrypto_glib_hmac_bytesv(QCryptoHmac *hmac,
return 0;
}
#else
bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg)
{
return false;
}
void *qcrypto_hmac_ctx_new(QCryptoHashAlgorithm alg,
const uint8_t *key, size_t nkey,
Error **errp)
{
return NULL;
}
static void
qcrypto_glib_hmac_ctx_free(QCryptoHmac *hmac)
{
return;
}
static int
qcrypto_glib_hmac_bytesv(QCryptoHmac *hmac,
const struct iovec *iov,
size_t niov,
uint8_t **result,
size_t *resultlen,
Error **errp)
{
return -1;
}
#endif
QCryptoHmacDriver qcrypto_hmac_lib_driver = {
.hmac_bytesv = qcrypto_glib_hmac_bytesv,
.hmac_free = qcrypto_glib_hmac_ctx_free,

373
include/glib-compat.h
View File

@ -16,28 +16,73 @@
#ifndef QEMU_GLIB_COMPAT_H
#define QEMU_GLIB_COMPAT_H
/* Ask for warnings for anything that was marked deprecated in
* the defined version, or before. It is a candidate for rewrite.
*/
#define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_40
/* Ask for warnings if code tries to use function that did not
* exist in the defined version. These risk breaking builds
*/
#define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_40
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#include <glib.h>
/* GLIB version compatibility flags */
#if !GLIB_CHECK_VERSION(2, 26, 0)
#define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT(1000000))
#endif
/*
* Note that because of the GLIB_VERSION_MAX_ALLOWED constant above, allowing
* use of functions from newer GLib via this compat header needs a little
* trickery to prevent warnings being emitted.
*
* Consider a function from newer glib-X.Y that we want to use
*
* int g_foo(const char *wibble)
*
* We must define a static inline function with the same signature that does
* what we need, but with a "_qemu" suffix e.g.
*
* static inline void g_foo_qemu(const char *wibble)
* {
* #if GLIB_CHECK_VERSION(X, Y, 0)
* g_foo(wibble)
* #else
* g_something_equivalent_in_older_glib(wibble);
* #endif
* }
*
* The #pragma at the top of this file turns off -Wdeprecated-declarations,
* ensuring this wrapper function impl doesn't trigger the compiler warning
* about using too new glib APIs. Finally we can do
*
* #define g_foo(a) g_foo_qemu(a)
*
* So now the code elsewhere in QEMU, which *does* have the
* -Wdeprecated-declarations warning active, can call g_foo(...) as normal,
* without generating warnings.
*/
#if !GLIB_CHECK_VERSION(2, 28, 0)
static inline gint64 qemu_g_get_monotonic_time(void)
static inline gboolean g_strv_contains_qemu(const gchar *const *strv,
const gchar *str)
{
/* g_get_monotonic_time() is best-effort so we can use the wall clock as a
* fallback.
*/
#if GLIB_CHECK_VERSION(2, 44, 0)
return g_strv_contains(strv, str);
#else
g_return_val_if_fail(strv != NULL, FALSE);
g_return_val_if_fail(str != NULL, FALSE);
GTimeVal time;
g_get_current_time(&time);
for (; *strv != NULL; strv++) {
if (g_str_equal(str, *strv)) {
return TRUE;
}
}
return time.tv_sec * G_TIME_SPAN_SECOND + time.tv_usec;
}
/* work around distro backports of this interface */
#define g_get_monotonic_time() qemu_g_get_monotonic_time()
return FALSE;
#endif
}
#define g_strv_contains(a, b) g_strv_contains_qemu(a, b)
#if defined(_WIN32) && !GLIB_CHECK_VERSION(2, 50, 0)
/*
@ -48,228 +93,6 @@ static inline gint64 qemu_g_get_monotonic_time(void)
gint g_poll_fixed(GPollFD *fds, guint nfds, gint timeout);
#endif
#if !GLIB_CHECK_VERSION(2, 30, 0)
/* Not a 100% compatible implementation, but good enough for most
* cases. Placeholders are only supported at the end of the
* template. */
static inline gchar *qemu_g_dir_make_tmp(gchar const *tmpl, GError **error)
{
gchar *path = g_build_filename(g_get_tmp_dir(), tmpl ?: ".XXXXXX", NULL);
if (mkdtemp(path) != NULL) {
return path;
}
/* Error occurred, clean up. */
g_set_error(error, G_FILE_ERROR, g_file_error_from_errno(errno),
"mkdtemp() failed");
g_free(path);
return NULL;
}
#define g_dir_make_tmp(tmpl, error) qemu_g_dir_make_tmp(tmpl, error)
#endif /* glib 2.30 */
#if !GLIB_CHECK_VERSION(2, 31, 0)
/* before glib-2.31, GMutex and GCond was dynamic-only (there was a separate
* GStaticMutex, but it didn't work with condition variables).
*
* Our implementation uses GOnce to fake a static implementation that does
* not require separate initialization.
* We need to rename the types to avoid passing our CompatGMutex/CompatGCond
* by mistake to a function that expects GMutex/GCond. However, for ease
* of use we keep the GLib function names. GLib uses macros for the
* implementation, we use inline functions instead and undefine the macros.
*/
typedef struct CompatGMutex {
GOnce once;
} CompatGMutex;
typedef struct CompatGCond {
GOnce once;
} CompatGCond;
static inline gpointer do_g_mutex_new(gpointer unused)
{
return (gpointer) g_mutex_new();
}
static inline void g_mutex_init(CompatGMutex *mutex)
{
mutex->once = (GOnce) G_ONCE_INIT;
}
static inline void g_mutex_clear(CompatGMutex *mutex)
{
g_assert(mutex->once.status != G_ONCE_STATUS_PROGRESS);
if (mutex->once.retval) {
g_mutex_free((GMutex *) mutex->once.retval);
}
mutex->once = (GOnce) G_ONCE_INIT;
}
static inline void (g_mutex_lock)(CompatGMutex *mutex)
{
g_once(&mutex->once, do_g_mutex_new, NULL);
g_mutex_lock((GMutex *) mutex->once.retval);
}
#undef g_mutex_lock
static inline gboolean (g_mutex_trylock)(CompatGMutex *mutex)
{
g_once(&mutex->once, do_g_mutex_new, NULL);
return g_mutex_trylock((GMutex *) mutex->once.retval);
}
#undef g_mutex_trylock
static inline void (g_mutex_unlock)(CompatGMutex *mutex)
{
g_mutex_unlock((GMutex *) mutex->once.retval);
}
#undef g_mutex_unlock
static inline gpointer do_g_cond_new(gpointer unused)
{
return (gpointer) g_cond_new();
}
static inline void g_cond_init(CompatGCond *cond)
{
cond->once = (GOnce) G_ONCE_INIT;
}
static inline void g_cond_clear(CompatGCond *cond)
{
g_assert(cond->once.status != G_ONCE_STATUS_PROGRESS);
if (cond->once.retval) {
g_cond_free((GCond *) cond->once.retval);
}
cond->once = (GOnce) G_ONCE_INIT;
}
static inline void (g_cond_wait)(CompatGCond *cond, CompatGMutex *mutex)
{
g_assert(mutex->once.status != G_ONCE_STATUS_PROGRESS);
g_once(&cond->once, do_g_cond_new, NULL);
g_cond_wait((GCond *) cond->once.retval, (GMutex *) mutex->once.retval);
}
#undef g_cond_wait
static inline void (g_cond_broadcast)(CompatGCond *cond)
{
g_once(&cond->once, do_g_cond_new, NULL);
g_cond_broadcast((GCond *) cond->once.retval);
}
#undef g_cond_broadcast
static inline void (g_cond_signal)(CompatGCond *cond)
{
g_once(&cond->once, do_g_cond_new, NULL);
g_cond_signal((GCond *) cond->once.retval);
}
#undef g_cond_signal
static inline gboolean (g_cond_timed_wait)(CompatGCond *cond,
CompatGMutex *mutex,
GTimeVal *time)
{
g_assert(mutex->once.status != G_ONCE_STATUS_PROGRESS);
g_once(&cond->once, do_g_cond_new, NULL);
return g_cond_timed_wait((GCond *) cond->once.retval,
(GMutex *) mutex->once.retval, time);
}
#undef g_cond_timed_wait
/* This is not a macro, because it didn't exist until 2.32. */
static inline gboolean g_cond_wait_until(CompatGCond *cond, CompatGMutex *mutex,
gint64 end_time)
{
GTimeVal time;
/* Convert from monotonic to CLOCK_REALTIME. */
end_time -= g_get_monotonic_time();
g_get_current_time(&time);
end_time += time.tv_sec * G_TIME_SPAN_SECOND + time.tv_usec;
time.tv_sec = end_time / G_TIME_SPAN_SECOND;
time.tv_usec = end_time % G_TIME_SPAN_SECOND;
return g_cond_timed_wait(cond, mutex, &time);
}
/* before 2.31 there was no g_thread_new() */
static inline GThread *g_thread_new(const char *name,
GThreadFunc func, gpointer data)
{
GThread *thread = g_thread_create(func, data, TRUE, NULL);
if (!thread) {
g_error("creating thread");
}
return thread;
}
#else
#define CompatGMutex GMutex
#define CompatGCond GCond
#endif /* glib 2.31 */
#if !GLIB_CHECK_VERSION(2, 32, 0)
/* Beware, function returns gboolean since 2.39.2, see GLib commit 9101915 */
static inline void g_hash_table_add(GHashTable *hash_table, gpointer key)
{
g_hash_table_replace(hash_table, key, key);
}
static inline gboolean g_hash_table_contains(GHashTable *hash_table,
gpointer key)
{
return g_hash_table_lookup_extended(hash_table, key, NULL, NULL);
}
#define G_SOURCE_CONTINUE TRUE
#define G_SOURCE_REMOVE FALSE
#endif
#ifndef g_assert_true
#define g_assert_true(expr) \
do { \
if (G_LIKELY(expr)) { \
} else { \
g_assertion_message(G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
"'" #expr "' should be TRUE"); \
} \
} while (0)
#endif
#ifndef g_assert_false
#define g_assert_false(expr) \
do { \
if (G_LIKELY(!(expr))) { \
} else { \
g_assertion_message(G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
"'" #expr "' should be FALSE"); \
} \
} while (0)
#endif
#ifndef g_assert_null
#define g_assert_null(expr) \
do { \
if (G_LIKELY((expr) == NULL)) { \
} else { \
g_assertion_message(G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
"'" #expr "' should be NULL"); \
} \
} while (0)
#endif
#ifndef g_assert_nonnull
#define g_assert_nonnull(expr) \
do { \
if (G_LIKELY((expr) != NULL)) { \
} else { \
g_assertion_message(G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
"'" #expr "' should not be NULL"); \
} \
} while (0)
#endif
#ifndef g_assert_cmpmem
#define g_assert_cmpmem(m1, l1, m2, l2) \
@ -288,80 +111,6 @@ static inline gboolean g_hash_table_contains(GHashTable *hash_table,
} while (0)
#endif
#if !GLIB_CHECK_VERSION(2, 28, 0)
static inline void g_list_free_full(GList *list, GDestroyNotify free_func)
{
GList *l;
for (l = list; l; l = l->next) {
free_func(l->data);
}
g_list_free(list);
}
static inline void g_slist_free_full(GSList *list, GDestroyNotify free_func)
{
GSList *l;
for (l = list; l; l = l->next) {
free_func(l->data);
}
g_slist_free(list);
}
#endif
#if !GLIB_CHECK_VERSION(2, 26, 0)
static inline void g_source_set_name(GSource *source, const char *name)
{
/* This is just a debugging aid, so leaving it a no-op */
}
static inline void g_source_set_name_by_id(guint tag, const char *name)
{
/* This is just a debugging aid, so leaving it a no-op */
}
#endif
#if !GLIB_CHECK_VERSION(2, 36, 0)
/* Always fail. This will not include error_report output in the test log,
* sending it instead to stderr.
*/
#define g_test_initialized() (0)
#endif
#if !GLIB_CHECK_VERSION(2, 38, 0)
#ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS
#error schizophrenic detection of glib subprocess testing
#endif
#define g_test_subprocess() (0)
#endif
#if !GLIB_CHECK_VERSION(2, 34, 0)
static inline void
g_test_add_data_func_full(const char *path,
gpointer data,
gpointer fn,
gpointer data_free_func)
{
#if GLIB_CHECK_VERSION(2, 26, 0)
/* back-compat casts, remove this once we can require new-enough glib */
g_test_add_vtable(path, 0, data, NULL,
(GTestFixtureFunc)fn, (GTestFixtureFunc) data_free_func);
#else
/* back-compat casts, remove this once we can require new-enough glib */
g_test_add_vtable(path, 0, data, NULL,
(void (*)(void)) fn, (void (*)(void)) data_free_func);
#endif
}
#endif
/* Small compat shim from glib 2.32 */
#ifndef G_SOURCE_CONTINUE
#define G_SOURCE_CONTINUE TRUE
#endif
#ifndef G_SOURCE_REMOVE
#define G_SOURCE_REMOVE FALSE
#endif
#pragma GCC diagnostic pop
#endif

1
include/qemu/iova-tree.h
View File

@ -23,7 +23,6 @@
* for the thread safety issue.
*/
#include "qemu/osdep.h"
#include "exec/memory.h"
#include "exec/hwaddr.h"

11
qga/commands.c
View File

@ -414,10 +414,8 @@ GuestExec *qmp_guest_exec(const char *path,
argv = guest_exec_get_args(&arglist, true);
envp = has_env ? guest_exec_get_args(env, false) : NULL;
flags = G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD;
#if GLIB_CHECK_VERSION(2, 33, 2)
flags |= G_SPAWN_SEARCH_PATH_FROM_ENVP;
#endif
flags = G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD |
G_SPAWN_SEARCH_PATH_FROM_ENVP;
if (!has_output) {
flags |= G_SPAWN_STDOUT_TO_DEV_NULL | G_SPAWN_STDERR_TO_DEV_NULL;
}
@ -514,7 +512,6 @@ GuestHostName *qmp_guest_get_host_name(Error **err)
GuestTimezone *qmp_guest_get_timezone(Error **errp)
{
#if GLIB_CHECK_VERSION(2, 28, 0)
GuestTimezone *info = NULL;
GTimeZone *tz = NULL;
gint64 now = 0;
@ -544,8 +541,4 @@ GuestTimezone *qmp_guest_get_timezone(Error **errp)
error:
g_free(info);
return NULL;
#else
error_setg(errp, QERR_UNSUPPORTED);
return NULL;
#endif
}

30
tests/docker/dockerfiles/centos6.docker
View File

@ -1,30 +0,0 @@
FROM centos:6
RUN yum install -y epel-release centos-release-xen
ENV PACKAGES \
bison \
bzip2-devel \
ccache \
csnappy-devel \
flex \
g++ \
gcc \
gettext \
git \
glib2-devel \
libepoxy-devel \
libfdt-devel \
librdmacm-devel \
lzo-devel \
make \
mesa-libEGL-devel \
mesa-libgbm-devel \
pixman-devel \
SDL-devel \
spice-glib-devel \
spice-server-devel \
tar \
vte-devel \
xen-devel \
zlib-devel
RUN yum install -y $PACKAGES
RUN rpm -q $PACKAGES | sort > /packages.txt

8
tests/docker/dockerfiles/min-glib.docker
View File

@ -1,8 +0,0 @@
FROM centos:6
RUN yum install -y \
tar gettext git make gcc g++ \
zlib-devel SDL-devel pixman-devel \
epel-release
RUN yum install -y libfdt-devel ccache
RUN yum downgrade -y http://vault.centos.org/6.0/os/x86_64/Packages/glib2-2.22.5-5.el6.x86_64.rpm
RUN yum install -y http://vault.centos.org/6.0/os/x86_64/Packages/glib2-devel-2.22.5-5.el6.x86_64.rpm

6
tests/ivshmem-test.c
View File

@ -504,12 +504,6 @@ int main(int argc, char **argv)
const char *arch = qtest_get_arch();
gchar dir[] = "/tmp/ivshmem-test.XXXXXX";
#if !GLIB_CHECK_VERSION(2, 31, 0)
if (!g_thread_supported()) {
g_thread_init(NULL);
}
#endif
g_test_init(&argc, &argv, NULL);
qtest_add_abrt_handler(abrt_handler, NULL);

2
tests/test-qga.c
View File

@ -744,12 +744,10 @@ static void test_qga_config(gconstpointer data)
strv = g_key_file_get_string_list(kf, "general", "blacklist", &n, &error);
g_assert_cmpint(n, ==, 2);
#if GLIB_CHECK_VERSION(2, 44, 0)
g_assert_true(g_strv_contains((const char * const *)strv,
"guest-ping"));
g_assert_true(g_strv_contains((const char * const *)strv,
"guest-get-time"));
#endif
g_assert_no_error(error);
g_strfreev(strv);

8
tests/test-qmp-event.c
View File

@ -32,7 +32,7 @@ typedef struct QDictCmpData {
} QDictCmpData;
TestEventData *test_event_data;
static CompatGMutex test_event_lock;
static GMutex test_event_lock;
/* Only compares bool, int, string */
static
@ -242,12 +242,6 @@ static void test_event_d(TestEventData *data,
int main(int argc, char **argv)
{
#if !GLIB_CHECK_VERSION(2, 31, 0)
if (!g_thread_supported()) {
g_thread_init(NULL);
}
#endif
qmp_event_set_func_emit(event_test_emit);
g_test_init(&argc, &argv, NULL);

4
tests/tpm-emu.h
View File

@ -24,8 +24,8 @@ struct tpm_hdr {
} QEMU_PACKED;
typedef struct TestState {
CompatGMutex data_mutex;
CompatGCond data_cond;
GMutex data_mutex;
GCond data_cond;
SocketAddress *addr;
QIOChannel *tpm_ioc;
GThread *emu_tpm_thread;

26
tests/vhost-user-test.c
View File

@ -32,14 +32,6 @@
#include <linux/virtio_net.h>
#include <sys/vfs.h>
/* GLIB version compatibility flags */
#if !GLIB_CHECK_VERSION(2, 26, 0)
#define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT(1000000))
#endif
#if GLIB_CHECK_VERSION(2, 28, 0)
#define HAVE_MONOTONIC_TIME
#endif
#define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM," \
"mem-path=%s,share=on -numa node,memdev=mem"
@ -150,8 +142,8 @@ typedef struct TestServer {
int fds_num;
int fds[VHOST_MEMORY_MAX_NREGIONS];
VhostUserMemory memory;
CompatGMutex data_mutex;
CompatGCond data_cond;
GMutex data_mutex;
GCond data_cond;
int log_fd;
uint64_t rings;
bool test_fail;
@ -642,21 +634,7 @@ test_migrate_source_check(GSource *source)
return FALSE;
}
#if !GLIB_CHECK_VERSION(2,36,0)
/* this callback is unnecessary with glib >2.36, the default
* prepare for the source does the same */
static gboolean
test_migrate_source_prepare(GSource *source, gint *timeout)
{
*timeout = -1;
return FALSE;
}
#endif
GSourceFuncs test_migrate_source_funcs = {
#if !GLIB_CHECK_VERSION(2,36,0)
.prepare = test_migrate_source_prepare,
#endif
.check = test_migrate_source_check,
};

6
trace/simple.c
View File

@ -36,9 +36,9 @@
* Trace records are written out by a dedicated thread. The thread waits for
* records to become available, writes them out, and then waits again.
*/
static CompatGMutex trace_lock;
static CompatGCond trace_available_cond;
static CompatGCond trace_empty_cond;
static GMutex trace_lock;
static GCond trace_available_cond;
static GCond trace_empty_cond;
static bool trace_available;
static bool trace_writeout_enabled;

2
util/iova-tree.c
View File

@ -9,7 +9,7 @@
* This work is licensed under the terms of the GNU GPL, version 2 or later.
*/
#include <glib.h>
#include "qemu/osdep.h"
#include "qemu/iova-tree.h"
struct IOVATree {

14
util/osdep.c
View File

@ -504,20 +504,6 @@ int socket_init(void)
return 0;
}
#if !GLIB_CHECK_VERSION(2, 31, 0)
/* Ensure that glib is running in multi-threaded mode
* Old versions of glib require explicit initialization. Failure to do
* this results in the single-threaded code paths being taken inside
* glib. For example, the g_slice allocator will not be thread-safe
* and cause crashes.
*/
static void __attribute__((constructor)) thread_init(void)
{
if (!g_thread_supported()) {
g_thread_init(NULL);
}
}
#endif
#ifndef CONFIG_IOVEC
/* helper function for iov_send_recv() */