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* compiler.h: remove QEMU_GNUC_PREREQMarc-André Lureau2020-12-151-1/+0Star
| | | | | | | | When needed, the G_GNUC_CHECK_VERSION() glib macro can be used instead. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201210134752.780923-14-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* QEMU_PACKED: Remove gcc_struct attribute in Windows non x86 targetsCao Jiaxi2019-05-071-1/+6
| | | | | | | | | | gcc_struct is for x86 only, and it generates an warning on ARM64 Clang/MinGW targets. Signed-off-by: Cao Jiaxi <driver1998@foxmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20190503003618.10089-1-driver1998@foxmail.com [PMM: dropped the slirp change as slirp is now a submodule] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* qemu/queue.h: reimplement QTAILQ without pointer-to-pointersPaolo Bonzini2019-01-111-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | QTAILQ is a doubly linked list, with a pointer-to-pointer to the last element from the head, and the previous element from each node. But if you squint enough, QTAILQ becomes a combination of a singly-linked forwards list, and another singly-linked list which goes backwards and is circular. This is the idea that lets QTAILQ implement reverse iteration: only, because the backwards list points inside the node, accessing the previous element needs to go two steps back and one forwards. What this patch does is implement it in these terms, without actually changing the in-memory layout at all. The coexistence of the two lists is realized by making QTAILQ_HEAD and QTAILQ_ENTRY unions of the forwards pointer and a generic QTailQLink node. Thq QTailQLink can walk the list in both directions; the union is needed so that the forwards pointer can have the correct type, as a sort of poor man's template. While there are other ways to get the same layout without a union, this one has the advantage of simpler operation in the debugger, because the fields tqh_first and tqe_next still exist as before the patch. Those fields are also used by scripts/qemugdb/mtree.py, so it's a good idea to preserve them. The advantage of the new representation is that the two-back-one-forward dance done by backwards accesses can be done all while operating on QTailQLinks. No casting to the head struct is needed anymore because, even though the QTailQLink's forward pointer is a void *, we can use typeof to recover the correct type. This patch only changes the implementation, not the interface. The next patch will remove the head struct name from the backwards visit macros. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}Paolo Bonzini2019-01-111-10/+0Star
| | | | | | | | These are not present for other kinds of queue, and unused. Zap them before more changes are made to the QTAILQ implementation. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Remove QEMU_ARTIFICIAL macroThomas Huth2018-12-121-1/+0Star
| | | | | | | | The code that used it has already been removed a while ago with commit dc41aa7d34989b552ef ("tcg: Remove GET_TCGV_* and MAKE_TCGV_*"). Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
* coccinelle: add g_assert_cmp* to macro filePaolo Bonzini2016-05-231-0/+6
| | | | | | This helps applying semantic patches to unit tests. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* add macro file for coccinellePaolo Bonzini2015-09-091-0/+119
Coccinelle chokes on some idioms from compiler.h and queue.h. Extract those in a macro file, to be used with "--macro-file scripts/cocci-macro-file.h". Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>