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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_missing/911
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip
clean up repository
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-Unable to strace execve calls in mipsel user mode
-Description of problem:
-Used 6.2.0 ZIP and git to build, configured with 
-```
-./configure --target-list=mipsel-linux-user --static --disable-system --enable-linux-user
-```
-
-When trying to strace a mipsel-arch application, I cannot see traces for the `execve` syscall. It looks like the call to `safe_execve` is not returning, so the strace printout is never completed. I'm assuming this has to do with `execve` syscall not returning on success, but older versions appeared to be able to do it. I tried it with QEMU 4.2.1 from the package manager on Ubuntu and I saw the `execve` syscall (see qemu-4.2.1.log).
-Steps to reproduce:
-1. Build mipsel app: ` mipsel-linux-gnu-gcc -o test.mipsel test.c` (Test code is attached as `test.c`)
-2. Run qemu-mipsel: `./build/qemu-mipsel -L /usr/mipsel-linux-gnu/ -strace ../test.mipsel`
-3. Note that even though the app uses both `system` and `popen` to create subprocesses, no `execve` syscall is shown in the strace output.
-Additional information:
-[qemu-6.2.90.log](/uploads/ca03e6f40b3b0ea79a042786a123760a/qemu-6.2.90.log)
-[qemu-6.2.0.log](/uploads/ca15057398377d49b396e9e77a5cb639/qemu-6.2.0.log)
-[qemu-4.2.1.log](/uploads/1087250dd9fc4d8d106d2cbc58c2b14a/qemu-4.2.1.log)
-[test.c](/uploads/9d242a724b10b296cfd7a945ae4d6c4d/test.c)