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Diffstat (limited to 'gitlab/issues_text/target_arm/host_missing/accel_missing/729')
| -rw-r--r-- | gitlab/issues_text/target_arm/host_missing/accel_missing/729 | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_arm/host_missing/accel_missing/729 b/gitlab/issues_text/target_arm/host_missing/accel_missing/729 new file mode 100644 index 000000000..bf2aac172 --- /dev/null +++ b/gitlab/issues_text/target_arm/host_missing/accel_missing/729 @@ -0,0 +1,34 @@ +Environment variables are not passed with user-space semihosting +Description of problem: +Environment variables are not passed to the emulated process, either inherited (as I might expect it to work in user-space?) or by specifying the values through the QEMU command-line. Note that setting the environment variable from within the app before calling `getenv` does work, so it isn't just a case of some system no-ops for the platform. +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> +#include <cstdlib> + +int main(int argc, char* argv[]) { + char* env = std::getenv("TEST"); + if (env) + std::cout << "Env TEST: " << env << "\n"; + else + std::cout << "Env TEST not set.\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 -E TEST=val123 ./a.out +Env TEST not set. +``` |