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contrib/plugins: add compat for g_memdup2

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We were premature if bumping this because some of our builds are still
on older glibs. Just copy the compat handler for now and we can remove
it later.

Fixes: ee293103b0 (plugins: update lockstep to use g_memdup2)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2161
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-14-alex.bennee@linaro.org>
(cherry picked from commit 44e7948967)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2681 in 9.0.x
This commit is contained in:
Alex Bennée 2024-07-29 15:44:13 +01:00 • committed by Michael Tokarev
parent fe1f8cfad3
commit f7840ef5fd
1 changed files with 25 additions and 0 deletions
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25
contrib/plugins/lockstep.c
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@ -100,6 +100,31 @@ static void plugin_exit(qemu_plugin_id_t id, void *p)
plugin_cleanup(id);
}
/*
* g_memdup has been deprecated in Glib since 2.68 and
* will complain about it if you try to use it. However until
* glib_req_ver for QEMU is bumped we make a copy of the glib-compat
* handler.
*/
static inline gpointer g_memdup2_qemu(gconstpointer mem, gsize byte_size)
{
#if GLIB_CHECK_VERSION(2, 68, 0)
return g_memdup2(mem, byte_size);
#else
gpointer new_mem;
if (mem && byte_size != 0) {
new_mem = g_malloc(byte_size);
memcpy(new_mem, mem, byte_size);
} else {
new_mem = NULL;
}
return new_mem;
#endif
}
#define g_memdup2(m, s) g_memdup2_qemu(m, s)
static void report_divergance(ExecState *us, ExecState *them)
{
DivergeState divrec = { log, 0 };