e977fa83c7
- Work around gcc 10 bug (boo#1172411) build-Work-around-gcc10-bug-by-not-using.patch - Now that gcc10 compatibility is figured out, remove NO_WERROR=1 again from ipxe make. - Fix segfault when doing HMP wavcapture (boo#1171712) audio-fix-wavcapture-segfault.patch OBS-URL: https://build.opensuse.org/request/show/810961 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=551
79 lines
4.8 KiB
Diff
79 lines
4.8 KiB
Diff
From: Bruce Rogers <brogers@suse.com>
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Date: Mon, 1 Jun 2020 14:48:23 -0600
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Subject: build: Work around gcc10 bug by not using char type in triggering
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code
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References: boo#1172411
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It appears we are bumping into a bug in the gcc10 compiler where it gets
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it wrong in deciding that we're beyond the end of an array, in this case
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because of some detection wrt the char type. Change to non-char type to
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work around this issue. As near as I can tell, this isn't introducing
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any behavioral changes or another bug. (see for eg:
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92955 )
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Here is the error reported:
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[ 2046s] /home/abuild/rpmbuild/BUILD/qemu-5.0.50/target/xtensa/mmu_helper.c: In function 'reset_tlb_mmu_ways56.constprop.isra':
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 377 | entry[6][ei].asid = 1;
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[ 2046s] | ~~~~~~~~~~~~~~~~~~^~~
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[ 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=]
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[ 2046s] 378 | entry[6][ei].attr = 3;
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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target/xtensa/cpu.h | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
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index 7a46dccbe11b05e9565192b9e242..fc039349623057083541c160270f 100644
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--- a/target/xtensa/cpu.h
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+++ b/target/xtensa/cpu.h
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@@ -309,8 +309,8 @@ struct CPUXtensaState;
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typedef struct xtensa_tlb_entry {
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uint32_t vaddr;
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uint32_t paddr;
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- uint8_t asid;
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- uint8_t attr;
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+ uint32_t asid;
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+ uint32_t attr;
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bool variable;
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} xtensa_tlb_entry;
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