Cleanup platform-specific ifdefs

[jkotas]

No description provided.

[dotnet-issue-labeler]

I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

[jkotas]

Inspired by LoongArch64 PR reviews

[shushanhf]

Hi @jkotas
You had cleaned the redundant defination liking IMAGE_FILE_XXX.

How about the relocation liking IMAGE_REL_ARM64_PAGEOFFSET_12A within the src/coreclr/inc/clrnt.h and src/coreclr/pal/inc/rt/ntimage.h ?

[jkotas]

How about the relocation liking IMAGE_REL_ARM64_PAGEOFFSET_12A within the src/coreclr/inc/clrnt.h

I have pushed a commit to cleanup these as well.

[BruceForstall]

LGTM

[AndyAyersMS]

I am seeing a build break in CI in Build Cross OS Linux DAC for Windows ... could this be related?

C:\PROGRA~2\MICROS~1\2019\ENTERP~1\VC\Tools\MSVC\1429~1.301\bin\Hostx86\x64\cl.exe  /nologo -DCROSS_COMPILE -DDISABLE_CONTRACTS -DHAVE_CONFIG_H=1 -DHAVE_UNW_GET_ACCESSORS -DHAVE___THREAD=0 -DHOST_64BIT -DHOST_AMD64 -DHOST_WINDOWS -DNDEBUG -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_STRING=\"\" -DTARGET_64BIT -DTARGET_ARM64 -DTARGET_LINUX -DTARGET_UNIX -DUNW_REMOTE_ONLY -DURTBLDENV_FRIENDLY=Retail -D_CRT_SECURE_NO_WARNINGS -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D_Thread_local="" -D__aarch64__ -D__linux__ -Ipal\src\libunwind\src -ID:\a\_work\1\s\src\coreclr\pal\src\libunwind\src -ID:\a\_work\1\s\src\native -ID:\a\_work\1\s\src\coreclr\pal\src\libunwind\include\tdep -ID:\a\_work\1\s\src\coreclr\pal\src\libunwind\include -Ipal\src\libunwind\include\tdep -Ipal\src\libunwind\include -ID:\a\_work\1\s\src\coreclr\pal\src\libunwind\include\win /DWIN32 /D_WINDOWS  /guard:cf /guard:ehcont /O2 /Ob2 /DNDEBUG -MT   /Ox /nologo /W3 /WX /Oi /Oy- /Gm- /Zp8 /Gy /GS /fp:precise /FC /MP /Zm200 /Zc:strictStrings /Zc:wchar_t /Zc:inline /Zc:forScope /wd4065 /wd4100 /wd4127 /wd4189 /wd4200 /wd4201 /wd4245 /wd4291 /wd4456 /wd4457 /wd4458 /wd4733 /wd4838 /wd4960 /wd4961 /wd5105 /we4007 /we4013 /we4102 /we4551 /we4700 /we4640 /we4806 /w34092 /w34121 /w34125 /w34130 /w34132 /w34212 /w34530 /w35038 /w44177 /Zi /ZH:SHA_256 /source-charset:utf-8 /GL /TC /permissive- -wd4068 -wd4146 -wd4244 -wd4267 -wd4334 -wd4311 -wd4475 -wd4477 /showIncludes /Fopal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gparser.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\Gparser.c
D:\a\_work\1\s\src\coreclr\pal\src\libunwind\include\libunwind-aarch64.h(198): error C2061: syntax error: identifier 'alignas'
D:\a\_work\1\s\src\coreclr\pal\src\libunwind\include\libunwind-aarch64.h(199): error C2059: syntax error: '}'
D:\a\_work\1\s\src\coreclr\pal\src\libunwind\include\libunwind-aarch64.h(215): error C2079: 'uc_mcontext' uses undefined struct 'unw_sigcontext'

[jkotas]

I do not think that it is related.

We require VS 2022 for build https://github.com/dotnet/runtime/blob/main/docs/workflow/requirements/windows-requirements.md#visual-studio . The log that you have shared suggests that the CI machine is using VS 2019. I guess the CI machine is misconfigured. What is the job that is hitting this break?

[AndyAyersMS]

https://github.com/dotnet/runtime/pull/65675/checks?check_run_id=5307915150

Looks like VS2019 indeed...

** Visual Studio 2019 Developer Command Prompt v16.11.10

[AndyAyersMS]

Seems like this comes from eng\pipelines\common\xplat-setup.yml?