diff options
Diffstat (limited to 'results/classifier/108/semantic/714')
| -rw-r--r-- | results/classifier/108/semantic/714 | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/results/classifier/108/semantic/714 b/results/classifier/108/semantic/714 new file mode 100644 index 000000000..2a08ec0b8 --- /dev/null +++ b/results/classifier/108/semantic/714 @@ -0,0 +1,58 @@ +semantic: 0.914 +graphic: 0.775 +performance: 0.751 +device: 0.697 +vnc: 0.667 +permissions: 0.639 +socket: 0.476 +network: 0.387 +PID: 0.370 +debug: 0.349 +files: 0.302 +boot: 0.277 +other: 0.232 +KVM: 0.188 + +Command line arguments are not passed correctly with user-space semihosting +Description of problem: +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] @ +``` +Steps to 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[]) { + std::cout << "argc: " << argc << "\n"; + std::cout << "argv: \n"; + + for (int i = 0; i < argc; i++) + std::cout << " [" << i << "] " << argv[i] << "\n"; + return 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 +``` |