`Build Cross OS Linux DAC for Windows` fails to build on CI

[radical]

Hit on #65752 .
Build

[2/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\global.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/global.c.obj 
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\global.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\global.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'
[3/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gfde.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gfde.c.obj 
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\Gfde.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\Gfde.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'
[4/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\aarch64\Gtrace.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/aarch64/Gtrace.c.obj 
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\aarch64\Gtrace.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\aarch64\Gtrace.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'
[5/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gparser.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gparser.c.obj 
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'
[6/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gexpr.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gexpr.c.obj 
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\Gexpr.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\Gexpr.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'
[7/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\aarch64\Gstash_frame.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/aarch64/Gstash_frame.c.obj 
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\aarch64\Gstash_frame.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\aarch64\Gstash_frame.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'
ninja: build stopped: subcommand failed.

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Issue Details

---

Hit on #65752 .
Build

[2/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\global.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/global.c.obj 
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\global.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\global.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'
[3/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gfde.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gfde.c.obj 
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\Gfde.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\Gfde.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'
[4/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\aarch64\Gtrace.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/aarch64/Gtrace.c.obj 
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\aarch64\Gtrace.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\aarch64\Gtrace.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'
[5/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gparser.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gparser.c.obj 
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'
[6/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\dwarf\Gexpr.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/dwarf/Gexpr.c.obj 
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\Gexpr.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\dwarf\Gexpr.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'
[7/441] Building C object pal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\aarch64\Gstash_frame.c.obj
FAILED: pal/src/libunwind/src/CMakeFiles/libunwind_xdac.dir/aarch64/Gstash_frame.c.obj 
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\aarch64\Gstash_frame.c.obj /Fdpal\src\libunwind\src\CMakeFiles\libunwind_xdac.dir\ /FS -c D:\a\_work\1\s\src\coreclr\pal\src\libunwind\src\aarch64\Gstash_frame.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'
ninja: build stopped: subcommand failed.

Author:	radical
Assignees:	-
Labels:	area-Infrastructure-coreclr, blocking-clean-ci, untriaged
Milestone:	-

[hoyosjs]

@MattGal this seems to have started happening today. Could it be related to the image rollout?

[hoyosjs]

cc: @AndyAyersMS

[MattGal]

@MattGal this seems to have started happening today. Could it be related to the image rollout?

It's hard to tell when folks merge on red, but in a similar conversation with @mangod9 we discussed how today we moved from 16.11.0 to 16.11.10 of VS 2019; that context was related to adding the Windows 11 SDK but this may be another related cmake change.

[janvorli]

The alignas should be defined in

runtime/src/coreclr/pal/src/libunwind/include/win/fakestdalign.h.in

Line 7 in 57bfe47

#define alignas(x)

So it looks like that due to some mistake, we've stopped including that file.

I'll take a look.

[AndyAyersMS]

Also see #65798