File build-Work-around-gcc10-bug-by-not-using.patch of Package qemu

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File build-Work-around-gcc10-bug-by-not-using.patch of Package qemu (Revision 6a61674e7740bd59eed45959aa42aa25)

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From: Bruce Rogers <brogers@suse.com>
Date: Mon, 1 Jun 2020 14:48:23 -0600
Subject: build: Work around gcc10 bug by not using char type in triggering
 code

References: boo#1172411

It appears we are bumping into a bug in the gcc10 compiler where it gets
it wrong in deciding that we're beyond the end of an array, in this case
because of some detection wrt the char type. Change to non-char type to
work around this issue. As near as I can tell, this isn't introducing
any behavioral changes or another bug. (see for eg:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92955 )

Here is the error reported:
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c: In function 'reset_tlb_mmu_ways56.constprop.isra':
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:377:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   377 |             entry[6][ei].asid = 1;
[ 2046s]       |             ~~~~~~~~~~~~~~~~~~^~~
[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c:378:31: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
[ 2046s]   378 |             entry[6][ei].attr = 3;

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 target/xtensa/cpu.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index 7a46dccbe11b05e9565192b9e242..fc039349623057083541c160270f 100644
--- a/target/xtensa/cpu.h
+++ b/target/xtensa/cpu.h
@@ -309,8 +309,8 @@ struct CPUXtensaState;
 typedef struct xtensa_tlb_entry {
     uint32_t vaddr;
     uint32_t paddr;
-    uint8_t asid;
-    uint8_t attr;
+    uint32_t asid;
+    uint32_t attr;
     bool variable;
 } xtensa_tlb_entry;

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File build-Work-around-gcc10-bug-by-not-using.patch of Package qemu (Revision 6a61674e7740bd59eed45959aa42aa25)

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