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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_arm/host_missing/accel_missing/729
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
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clean up repository
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-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.
-```