arch/sim/cmake: remove the host specific -U when HOSTSRCS

[jasonbu]

Summary

fix macos compile hostfs.c compile issue. /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.0.sdk/usr/include/_string.h:131:62: error: expected function body after function declarator 131 | char *stpncpy(char *__dst, const char *__src, size_t __n) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); |

there is still deadloop on macos native sim, memset->bzero->memset... local remove the bzero can make macos run succ.

Impact

fix macos cmake build problem.

Testing

CI-test & macos, sim:nsh local build.

# nuttx dir
cmake -B ../build -DBOARD_CONFIG=sim:nsh -GNinja
cmake --build ../build -j
../build/nuttx

[nuttxpr]

[Experimental Bot, please feedback here]

NuttX PR Requirements Review

This PR appears to partially meet the NuttX requirements. Here's a breakdown:

Strengths:

• Summary: Clearly states the "why" (fix compile issue) and "what" (addressing stpncpy error and removing bzero causing deadloop). However, it could benefit from a more detailed explanation of how the bzero issue was addressed.
• Impact: Highlights the positive impact on macOS CMake builds.
• Testing: Provides specific testing environments (CI, macOS, sim:nsh) and build commands for reproducibility. The inclusion of testing logs is commendable.

Areas for Improvement:

• Summary:
  • Expand on the bzero fix. Was it simply removed, or replaced with a different function?
  • Include relevant NuttX Issue numbers if applicable.
• Impact:
  • While it mentions fixing a build problem, specify if this is a new feature, existing feature change, or a bug fix.
  • The other impact fields (hardware, documentation, security, compatibility) are left blank. Even if the answer is "NO", it's good practice to explicitly state it for clarity.
• Testing:
  • Before Change Logs: Currently missing. Include logs demonstrating the original compile error and the bzero deadloop to highlight the problem being solved.

Recommendation:

Before merging, consider addressing the "Areas for Improvement" to enhance clarity and completeness. This will make it easier for reviewers to understand the PR's full scope and impact.

[simbit18]

@xiaoxiang781216 @xuxin930 @jasonbu this pr broke build msvc

https://github.com/simbit18/nuttx_test_pr/actions/runs/11498059450/job/32003163671#step:8:1780 sched.vcxproj -> D:\a\nuttx_test_pr\nuttx_test_pr\sources\nuttx\vs2022\sched\Debug\sched.lib Generating nuttx_all.lib Microsoft (R) Library Manager Version 14.41.34123.0 Copyright (C) Microsoft Corporation. All rights reserved.

Building Custom Rule D:/a/nuttx_test_pr/nuttx_test_pr/sources/nuttx/CMakeLists.txt Building Custom Rule D:/a/nuttx_test_pr/nuttx_test_pr/sources/nuttx/CMakeLists.txt HOST_COMPILE_OPTIONS-NOTFOUND /HOST_COMPILE_OPTIONS-NOTFOUND(1,1): error C1083: Cannot open source file: 'HOST_COMPILE_OPTIONS-NOTFOUND': No such file or directory [D:\a\nuttx_test_pr\nuttx_test_pr\sources\nuttx\vs2022\nuttx.vcxproj] (compiling source file '/HOST_COMPILE_OPTIONS-NOTFOUND')

[jasonbu]

@xiaoxiang781216 @xuxin930 @jasonbu this pr broke build msvc

https://github.com/simbit18/nuttx_test_pr/actions/runs/11498059450/job/32003163671#step:8:1780 sched.vcxproj -> D:\a\nuttx_test_pr\nuttx_test_pr\sources\nuttx\vs2022\sched\Debug\sched.lib Generating nuttx_all.lib Microsoft (R) Library Manager Version 14.41.34123.0 Copyright (C) Microsoft Corporation. All rights reserved.

Building Custom Rule D:/a/nuttx_test_pr/nuttx_test_pr/sources/nuttx/CMakeLists.txt Building Custom Rule D:/a/nuttx_test_pr/nuttx_test_pr/sources/nuttx/CMakeLists.txt HOST_COMPILE_OPTIONS-NOTFOUND /HOST_COMPILE_OPTIONS-NOTFOUND(1,1): error C1083: Cannot open source file: 'HOST_COMPILE_OPTIONS-NOTFOUND': No such file or directory [D:\a\nuttx_test_pr\nuttx_test_pr\sources\nuttx\vs2022\nuttx.vcxproj] (compiling source file '/HOST_COMPILE_OPTIONS-NOTFOUND')

@simbit18 I did not try the win host and re-produce the problem, please help me verify if it will work, I will do verify later. please review #14499. the problem should be COMPILE_OPTIONS is not set yet in nuttx cmake target at this time.