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From 984faac66812652082fc9aa46eceb21669c1131b Mon Sep 17 00:00:00 2001
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From: Laszlo Ersek <lersek@redhat.com>
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Date: Tue, 10 Feb 2015 19:41:34 +0100
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Subject: [PATCH 11/16] build: reenable local builds to pass --enable-debug
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(RHEL only)
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Message-id: <1423597294-16022-2-git-send-email-lersek@redhat.com>
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Patchwork-id: 63788
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O-Subject: [RHEL-7.2 qemu-kvm PATCH 1/1] build: reenable local builds to pass --enable-debug (RHEL only)
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Bugzilla:
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RHEL-7 commit f6852e27 dropped the "isa-ide" device, and observed:
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Unresolved extern symbols pose no real danger, because they fail safely
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at link time. Note for the curious: the optimizer gets rid of the
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reference to isa_ide_init() in hw/i386/pc_piix.c.
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For local builds it is sometimes useful to pass
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configure script. However that flag disables the optimizer, and the
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isa_ide_init() call is not eliminated during compilation; it reaches the
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linker. The linker then barfs
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LINK x86_64-softmmu/qemu-system-x86_64
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hw/i386/pc_piix.o: In function `pc_init1':
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.../hw/i386/pc_piix.c:221: undefined reference to `isa_ide_init'
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collect2: error: ld returned 1 exit status
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Provide a stub implementation for isa_ide_init(), reenabling local debug
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builds.
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No copyright notice is added to the top of the new file, following the
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pattern set by other stub files.
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Signed-off-by: Laszlo Ersek <lersek@redhat.com>
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stubs/Makefile.objs | 1 +
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stubs/ide-isa.c | 12 ++++++++++++
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2 files changed, 13 insertions(+)
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create mode 100644 stubs/ide-isa.c
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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stubs/Makefile.objs | 1 +
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stubs/ide-isa.c | 12 ++++++++++++
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2 files changed, 13 insertions(+)
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create mode 100644 stubs/ide-isa.c
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diff
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index 4b2cb7d..590008e 100644
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@@ -26,3 +26,4 @@ stub-obj-y += vm-stop.o
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stub-obj-y += vmstate.o
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stub-obj-$(CONFIG_WIN32) += fd-register.o
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stub-obj-y += cpus.o
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+stub-obj-y += ide-isa.o
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diff
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new file mode 100644
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index 0000000..4074aff
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--- /dev/null
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@@ -0,0 +1,12 @@
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+#include <hw/ide.h>
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+#include <stdlib.h>
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+
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+ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq,
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+ DriveInfo *hd0, DriveInfo *hd1)
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+{
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+ /*
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+ * In theory the real isa_ide_init() function can return NULL, but no
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+ * caller actually checks for that. Make sure we go out with a clear bang.
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+ */
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+ abort();
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+}
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--
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1.8.3.1
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