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
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+++ 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"