63 lines
2.3 KiB
Diff
63 lines
2.3 KiB
Diff
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From 125a65cb03f845d1b6d5f7078670aa1a49d62513 Mon Sep 17 00:00:00 2001
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From: Kevin Traynor <ktraynor@redhat.com>
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Date: Wed, 24 Aug 2022 10:17:07 +0100
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Subject: [PATCH] examples/performance-thread: fix build with GCC 12
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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[1/2] Compiling C object examples/dpdk-pthrea...
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formance-thread_pthread_shim_pthread_shim.c.o
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../examples/performance-thread/pthread_shim/pthread_shim.c:
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In function ‘pthread_setspecific’:
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../examples/performance-thread/pthread_shim/pthread_shim.c:592:27:
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warning: ‘data’ may be used uninitialized [-Wmaybe-uninitialized]
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592 | int rv = lthread_setspecific((unsigned int)key, data);
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| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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../examples/performance-thread/pthread_shim/pthread_shim.c:589:56:
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note: accessing argument 2 of a function declared with attribute
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‘access (none, 2)’
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589 | int pthread_setspecific(pthread_key_t key, const void *data)
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| ~~~~~~~~~~~~^~~~
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This is a false positive as pthread_setspecific() does not read from
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the (const void *) so we can squash the warning.
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performance-thread example is already removed from DPDK main branch.
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Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
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---
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examples/performance-thread/pthread_shim/pthread_shim.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/examples/performance-thread/pthread_shim/pthread_shim.c b/examples/performance-thread/pthread_shim/pthread_shim.c
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index bbc076584b..a44cb8244d 100644
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--- a/examples/performance-thread/pthread_shim/pthread_shim.c
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+++ b/examples/performance-thread/pthread_shim/pthread_shim.c
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@@ -586,6 +586,11 @@ pthread_t pthread_self(void)
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return _sys_pthread_funcs.f_pthread_self();
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}
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+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 120000)
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+#pragma GCC diagnostic push
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+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
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+#endif
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+
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int pthread_setspecific(pthread_key_t key, const void *data)
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{
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if (override) {
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@@ -595,6 +600,10 @@ int pthread_setspecific(pthread_key_t key, const void *data)
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return _sys_pthread_funcs.f_pthread_setspecific(key, data);
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}
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+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 120000)
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+#pragma GCC diagnostic pop
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+#endif
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+
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int pthread_spin_init(pthread_spinlock_t *a, int b)
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{
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NOT_IMPLEMENTED;
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--
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2.23.0
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