diff options
| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-21 21:21:26 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-21 21:21:26 +0200 |
| commit | 4b927bc37359dec23f67d3427fc982945f24f404 (patch) | |
| tree | 245449ef9146942dc7fffd0235b48b7e70a00bf2 /gitlab/issues/target_missing/host_missing/accel_missing/982.toml | |
| parent | aa8bd79cec7bf6790ddb01d156c2ef2201abbaab (diff) | |
| download | emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.tar.gz emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.zip | |
add gitlab issues in toml format
Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/982.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/982.toml | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/982.toml b/gitlab/issues/target_missing/host_missing/accel_missing/982.toml new file mode 100644 index 00000000..7c20ad67 --- /dev/null +++ b/gitlab/issues/target_missing/host_missing/accel_missing/982.toml @@ -0,0 +1,47 @@ +id = 982 +title = "linux-user: --strace incorrectly decodes writev arguments for 64-bit binaries on 32-bit machine" +state = "opened" +created_at = "2022-04-13T13:14:05.485Z" +closed_at = "n/a" +labels = ["linux-user"] +url = "https://gitlab.com/qemu-project/qemu/-/issues/982" +host-os = "Gentoo" +host-arch = "i686" +qemu-version = "6.2.0" +guest-os = "linux-user" +guest-arch = "x86_64, aarch64" +description = """With `--strace`, the arguments to `writev` appear to be decoded incorrectly. +The syscall still succeeds and has the expected effects.""" +reproduce = """``` +$ cat main.c +#include <sys/uio.h> + +int main(void) { + struct iovec iov; + iov.iov_base = "hello, world!\\n"; + iov.iov_len = 14; + return writev(1, &iov, 1); +} + +$ aarch64-unknown-linux-gnu-gcc -static -o aarch64-main main.c + +$ x86_64-pc-linux-gnu-gcc -static -o x86_64-main main.c + +$ i686-pc-linux-gnu-gcc -static -o i686-main main.c + +$ ./i686-main +hello, world! + +$ strace ./i686-main |& grep writev +writev(1, [{iov_base="hello, world!\\n", iov_len=14}], 1hello, world! + +$ qemu-i386 --strace ./i686-main |& grep writev +21953 writev(1,0x407ffe54,0x1) = 14 + +$ qemu-x86_64 --strace ./x86_64-main |& grep writev +22218 writev(1,(nil),0x407ffcc0) = 14 + +$ qemu-aarch64 --strace ./aarch64-main |& grep writev +22523 writev(1,(nil),0x407ffcc8) = 14 +```""" +additional = "n/a" |