From 8458abb357cd981f55d730ec2d74459a3042e571 Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Tue, 6 Oct 2020 21:52:20 +0200
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Subject: [PATCH] fix build with gcc 10
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Define variables in header files as extern to avoid the following build failure
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with gcc 10 (which defaults to -fno-common):
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/home/giuliobenetti/autobuild/run/instance-3/output-1/host/bin/arm-buildroot-linux-gnueabihf-ld:
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/home/giuliobenetti/autobuild/run/instance-3/output-1/build/xvisor-0.3.0/build/drivers/mmc/core/mmc.o:/home/giuliobenetti/autobuild/run/instance-3/output-1/build/xvisor-0.3.0/drivers/mmc/core/core.h:67:
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multiple definition of `sdio_func_type';
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/home/giuliobenetti/autobuild/run/instance-3/output-1/build/xvisor-0.3.0/build/drivers/mmc/core/core.o:/home/giuliobenetti/autobuild/run/instance-3/output-1/build/xvisor-0.3.0/drivers/mmc/core/core.h:67:
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first defined here
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Fixes:
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- http://autobuild.buildroot.org/results/b6070c0721b33824e71833ce53423979980aa598
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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[Upstream status: https://github.com/xvisor/xvisor/pull/125]
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---
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drivers/mmc/core/core.h | 2 +-
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emulators/display/drawfn.h | 10 +++++-----
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2 files changed, 6 insertions(+), 6 deletions(-)
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diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
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index d75d135a..e2ca3141 100644
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--- a/drivers/mmc/core/core.h
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+++ b/drivers/mmc/core/core.h
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@@ -64,7 +64,7 @@ int mmc_go_idle(struct mmc_host *host);
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* Note: Must be called with host->lock held.
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*/
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extern struct vmm_bus sdio_bus_type;
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-struct vmm_device_type sdio_func_type;
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+extern struct vmm_device_type sdio_func_type;
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int __sdio_attach(struct mmc_host *host);
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diff --git a/emulators/display/drawfn.h b/emulators/display/drawfn.h
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index f9163cff..385deaf6 100644
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--- a/emulators/display/drawfn.h
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+++ b/emulators/display/drawfn.h
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@@ -69,14 +69,14 @@ typedef void (*drawfn)(struct vmm_surface *,
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DRAWFN_ORDER_MAX * \
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DRAWFN_FORMAT_MAX)
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-drawfn drawfn_surface_fntable_8[DRAWFN_FNTABLE_SIZE];
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+extern drawfn drawfn_surface_fntable_8[DRAWFN_FNTABLE_SIZE];
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-drawfn drawfn_surface_fntable_15[DRAWFN_FNTABLE_SIZE];
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+extern drawfn drawfn_surface_fntable_15[DRAWFN_FNTABLE_SIZE];
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-drawfn drawfn_surface_fntable_16[DRAWFN_FNTABLE_SIZE];
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+extern drawfn drawfn_surface_fntable_16[DRAWFN_FNTABLE_SIZE];
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-drawfn drawfn_surface_fntable_24[DRAWFN_FNTABLE_SIZE];
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+extern drawfn drawfn_surface_fntable_24[DRAWFN_FNTABLE_SIZE];
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-drawfn drawfn_surface_fntable_32[DRAWFN_FNTABLE_SIZE];
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+extern drawfn drawfn_surface_fntable_32[DRAWFN_FNTABLE_SIZE];
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#endif
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--
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2.28.0
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