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+id = 714
+title = "Command line arguments are not passed correctly with user-space semihosting"
+state = "closed"
+created_at = "2021-11-10T17:03:25.288Z"
+closed_at = "2022-05-25T18:15:55.187Z"
+labels = ["Closed::Fixed", "linux-user", "target: arm"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/714"
+host-os = "Ubuntu 20.04 WSL2 on Windows 10 (also experienced on native Ubuntu 20.04 and containerised)"
+host-arch = "x86_64"
+qemu-version = "qemu-arm version 6.1.90 (v6.2.0-rc0-10-gb30187ef02d)"
+guest-os = "n/a"
+guest-arch = "n/a"
+description = """The emulated process always receives a value of 1 for `argc`, with `argv[0]` returning seemingly random characters (in Ubuntu packaged qemu 5.2), but correlating with command-line input (output below from master built qemu 6.1):
+```
+$ qemu-arm -cpu cortex-m7 ./a.out 123 test
+argc: 1
+argv: 
+ - @@@
+
+$ qemu-arm -cpu cortex-m7 ./a.out 
+argc: 1
+argv:
+ [0] @
+```"""
+reproduce = """1. Compile the following program with [ARM embedded toolchain](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads):
+```cpp
+#include <iostream>
+
+int main(int argc, char* argv[]) {
+\tstd::cout << "argc: " << argc << "\\n";
+\tstd::cout << "argv: \\n";
+
+\tfor (int i = 0; i < argc; i++)
+\t\tstd::cout << " [" << i << "] " << argv[i] << "\\n";
+\treturn 0;
+}
+```
+
+```
+$ $CXX --version
+arm-none-eabi-g++ (GNU Arm Embedded Toolchain 10-2020-q4-major) 10.2.1 20201103 (release)
+Copyright (C) 2020 Free Software Foundation, Inc.
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+$ $CXX main.cpp --specs=rdimon.specs -mcpu=cortex-m7
+```
+
+2. Run in user-space (semihosted):
+```
+$ qemu-arm -cpu cortex-m7 ./a.out 
+```"""
+additional = "n/a"