Aleksandar Markovic <1880...@bugs.launchpad.net> writes:
> Public bug reported: > > This issue is observer with QEMU ToT, checked out around May 15th (but I > believe it is present in current master too), and wasn't present in QEMU > v5.0.0. > > I am using 32-bit Intel(R) Pentium(R) M processor 1.73GHz host. > > Arm cross-compiler is a standard cross-compiler that comes with Debian- > based distributions, and gcc version is: > > $ arm-linux-gnueabi-gcc --version > arm-linux-gnueabi-gcc (Debian 8.3.0-2) 8.3.0 > > Compile this program with cross compiler: > > $ arm-linux-gnueabi-gcc -O2 -static toupper_string.c -o toupper_string- > arm > > Emulation with QEMU v5.0.0 is correct, and gives expected output: > > $ ~/Build/qemu-5.0.0/build-gcc/arm-linux-user/qemu-arm ./toupper_string-arm > CONTROL RESULT: (toupper_string) > nwlrbbmqbhcdarz owkkyhiddqscdxr jmowfrxsjybldbe fsarcbynecdyggx > xpklorellnmpapq > NWLRBBMQBHCDARZ OWKKYHIDDQSCDXR JMOWFRXSJYBLDBE FSARCBYNECDYGGX > XPKLORELLNMPAPQ > > While, in case of QEMU master it fails: > > $ ~/Build/qemu-master/build-gcc/arm-linux-user/qemu-arm ./toupper_string-arm > qemu-arm: /home/rtrk/Build/qemu-master/linux-user/elfload.c:2294: > probe_guest_base: Assertion `have_guest_base' failed. > Aborted <snip> Works for me in our TCG tests on master: 20:15:43 [alex@zen:~/l/q/b/user.static] review/aarch64-vms-v7|… + ./arm-linux-user/qemu-arm ./tests/tcg/arm-linux-user/toupper CONTROL RESULT: (toupper_string) nwlrbbmqbhcdarz owkkyhiddqscdxr jmowfrxsjybldbe fsarcbynecdyggx xpklorellnmpapq NWLRBBMQBHCDARZ OWKKYHIDDQSCDXR JMOWFRXSJYBLDBE FSARCBYNECDYGGX XPKLORELLNMPAPQ I have submitted a fix to the list that affected programs that couldn't see /proc/self/maps but I guess that isn't the case here. -- Alex Bennée
