Define dirent d_type for Solaris based OS (#34263)

Author: am11

eng/native/configurecompiler.cmake

@@ -179,11 +179,15 @@ endif(CLR_CMAKE_HOST_UNIX)
 if(CLR_CMAKE_HOST_LINUX)
   add_compile_options($<$<COMPILE_LANGUAGE:ASM>:-Wa,--noexecstack>)
   add_link_options(-Wl,--build-id=sha1 -Wl,-z,relro,-z,now)
-endif(CLR_CMAKE_HOST_LINUX)
-if(CLR_CMAKE_HOST_FREEBSD)
+elseif(CLR_CMAKE_HOST_FREEBSD)
   add_compile_options($<$<COMPILE_LANGUAGE:ASM>:-Wa,--noexecstack>)
   add_link_options(LINKER:--build-id=sha1)
-endif(CLR_CMAKE_HOST_FREEBSD)
+elseif(CLR_CMAKE_HOST_SUNOS)
+  set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} /opt/local/include)
+  set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /opt/local/lib)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector")
+endif()
 
 #------------------------------------
 # Definitions (for platform)

src/installer/corehost/cli/common.cmake

@@ -40,9 +40,7 @@ function(set_common_libs TargetType)
             target_link_libraries (${DOTNET_PROJECT_NAME} "pthread")
         endif()
 
-        if(CLR_CMAKE_TARGET_LINUX)
-            target_link_libraries (${DOTNET_PROJECT_NAME} "dl")
-        endif()
+        target_link_libraries (${DOTNET_PROJECT_NAME} ${CMAKE_DL_LIBS})
     endif()
 
     if (NOT ${TargetType} STREQUAL "lib-static")

src/installer/corehost/cli/hostmisc/CMakeLists.txt

@@ -6,6 +6,9 @@ project(hostmisc)
 
 set(DOTNET_PROJECT_NAME "hostmisc")
 
+include(configure.cmake)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
 # CMake does not recommend using globbing since it messes with the freshness checks
 set(SOURCES
     trace.cpp

src/installer/corehost/cli/hostmisc/config.h.in

@@ -0,0 +1,6 @@
+#ifndef _PAL_CONFIG_H_INCLUDED
+#define _PAL_CONFIG_H_INCLUDED 1
+
+#cmakedefine01 HAVE_DIRENT_D_TYPE
+
+#endif

src/installer/corehost/cli/hostmisc/configure.cmake

@@ -0,0 +1,5 @@
+include(CheckStructHasMember)
+
+check_struct_has_member("struct dirent" d_type dirent.h HAVE_DIRENT_D_TYPE)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h)

src/installer/corehost/cli/hostmisc/pal.h

@@ -46,6 +46,7 @@
 #define xout std::cout
 #define DIR_SEPARATOR '/'
 #define PATH_SEPARATOR ':'
+#undef _X
 #define _X(s) s
 
 #define S_OK        0x00000000

src/installer/corehost/cli/hostmisc/pal.unix.cpp

@@ -14,6 +14,7 @@
 #include <fnmatch.h>
 #include <ctime>
 #include <pwd.h>
+#include "config.h"
 
 #if defined(TARGET_OSX)
 #include <mach-o/dyld.h>
@@ -27,6 +28,13 @@
 #define symlinkEntrypointExecutable "/proc/curproc/exe"
 #endif
 
+#if !HAVE_DIRENT_D_TYPE
+#define DT_UNKNOWN 0
+#define DT_DIR 4
+#define DT_REG 8
+#define DT_LNK 10
+#endif
+
 pal::string_t pal::to_string(int value) { return std::to_string(value); }
 
 pal::string_t pal::to_lower(const pal::string_t& in)
@@ -821,8 +829,14 @@ static void readdir(const pal::string_t& path, const pal::string_t& pattern, boo
                 continue;
             }
 
+#if HAVE_DIRENT_D_TYPE
+            int dirEntryType = entry->d_type;
+#else
+            int dirEntryType = DT_UNKNOWN;
+#endif
+
             // We are interested in files only
-            switch (entry->d_type)
+            switch (dirEntryType)
             {
             case DT_DIR:
                 break;