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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1725267
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloademulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+armeb regression since qemu version 2.8
+
+Hi,
+
+I have noticed a regression when I upgraded from qemu-armeb 2.7 to 2.8, and the problem is still present with version 2.10.1.
+
+I am using qemu for GCC validation, noticed problems with testcases involving atomics, I'm attaching here atomic-exchange-4.exe.
+
+# with 2.7:
+$ qemu-armeb -cpu any -R 0 -L $PWD -E LD_LIBRARY_PATH=$PWD/lib $PWD/atomic-exchange-4.exe
+$ echo $?
+0
+# with 2.8, 2.10.1:
+$ qemu-armeb -cpu any -R 0 -L $PWD -E LD_LIBRARY_PATH=$PWD/lib $PWD/atomic-exchange-4.exe
+qemu: uncaught target signal 6 (Aborted) - core dumped
+Aborted (core dumped)
+$ echo $?
+134
+
+The source code is gcc/testsuite/gcc.dg/atomic-exchange-4.c
+
+Running with -d in_asm shows a difference early in the startup code:
+IN: _dl_sysdep_start
+[...]
+0x40a17790:  908ff103      addls	pc, pc, r3, lsl #2
+
+and then the next address is not the same with qemu 2.7 and 2.10.1
+
+I hope you have enough data/information to reproduce and confirm/fix the problem.
+
+Thanks
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