Allow 64bit compilation (#86)

* feat: Add 64 bit compilation

* fix: Support multiple host systems

* feat: Revert default build to 32bits

* doc: Update README to reflect changes to default build type.

CMakeLists.txt

@@ -1,7 +1,7 @@
 # Using this min version for now
 cmake_minimum_required(VERSION 3.1)
 
-project(challenge_sets)
+project(challenge_sets C CXX)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Needed for newer challenges
@@ -58,13 +58,8 @@ else(WIN32)
         -fcommon
         -w
         -g3
-        -m32
     )
 
-    # Link everything 32-bit (until we have a 64-bit option)
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
-    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
-
     # Linker options
     # Dynamic by default
     option(BUILD_SHARED_LIBS "" ON)

README.md

@@ -73,6 +73,16 @@ $ NO_PYTHON_I_KNOW_WHAT_I_AM_DOING_I_SWEAR=1 ./build.sh
 
 This is **not** a publicly supported build mode.
 
+#### Build 64-bits version of the challenges
+By default, the build system will build 32 bits version of the challenges.
+However, by defining `BUILD64`, the build system will build 64-bits version of the challenges.
+
+```bash
+$ BUILD64=1 ./build.sh
+```
+
+Note: This has only been tested on *Linux*
+
 ### Windows
 
 The following packages are required for building the challenges on Windows:

build.sh

@@ -14,20 +14,20 @@ if [[ -z "${NO_PYTHON_I_KNOW_WHAT_I_AM_DOING_I_SWEAR}" ]]; then
   fi
 fi
 
-echo "Creating build directory"
-mkdir -p "${DIR}/build"
-cd "${DIR}/build"
-
 echo "Creating Makefiles"
 CMAKE_OPTS="${CMAKE_OPTS} -DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
 
-# Honor CC and CXX environment variables, default to clang otherwise
-CC=${CC:-clang}
-CXX=${CXX:-clang++}
+if [ -n "$BUILD64" ]; then
+  CMAKE_OPTS="$CMAKE_OPTS -DCMAKE_TOOLCHAIN_FILE=../cmake/64.cmake"
+  BUILD_DIR="build64"
+else
+  CMAKE_OPTS="$CMAKE_OPTS -DCMAKE_TOOLCHAIN_FILE=../cmake/32.cmake"
+  BUILD_DIR="build"
+fi;
 
-CMAKE_OPTS="$CMAKE_OPTS -DCMAKE_C_COMPILER=$CC"
-CMAKE_OPTS="$CMAKE_OPTS -DCMAKE_ASM_COMPILER=$CC"
-CMAKE_OPTS="$CMAKE_OPTS -DCMAKE_CXX_COMPILER=$CXX"
+echo "Creating build directory"
+mkdir -p "${DIR}/${BUILD_DIR}"
+cd "${DIR}/${BUILD_DIR}"
 
 LINK=${LINK:-SHARED}
 case $LINK in

challenges/Azurad/CMakeLists.txt

@@ -1,6 +1,6 @@
-add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS )
+add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS)
 set( SERVICE_ID "00119" )
 set( AUTHOR_ID "KPRCA" )
-add_compile_options( -Oz -g )
+add_compile_options( -Os -g )
 set( VULN_COUNT "1" )
 buildCB()

challenges/Blubber/CMakeLists.txt

@@ -1,6 +1,6 @@
 add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS )
 set( SERVICE_ID "00111" )
 set( AUTHOR_ID "KPRCA" )
-add_compile_options( -O1 -g )
+add_compile_options( -O1 -g -fpermissive -fms-extensions )
 set( VULN_COUNT "1" )
 buildCB()

challenges/CML/CMakeLists.txt

@@ -1,4 +1,4 @@
-add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS )
+add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS -fpermissive -fms-extensions)
 set( SERVICE_ID "00097" )
 set( AUTHOR_ID "KPRCA" )
 add_compile_options( -O3 -g )

challenges/Charter/CMakeLists.txt

@@ -1,7 +1,7 @@
 set( POLLS_TESTING_SEED "-710644949" )
 set( POLLS_RELEASE_MAX_DEPTH "20" )
 set( POLLS_RELEASE_SEED "40" )
-add_compile_options( -O0 -g -mno-sse -fblocks )
+add_compile_options( -O0 -g -msse2 -fblocks )
 set( SERVICE_ID "00006" )
 set( AUTHOR_ID "CROMU" )
 set( NO_STRIP "1" )

challenges/FUN/lib/cgc_stdint.h

@@ -11,8 +11,13 @@ typedef unsigned short int uint16_t;
 typedef unsigned int uint32_t;
 typedef unsigned long long int uint64_t;
 
-typedef int intptr_t;
-typedef unsigned int uintptr_t;
+#ifdef X32_COMPILE
+    typedef int32_t intptr_t;
+    typedef uint32_t uintptr_t;
+#else
+    typedef int64_t intptr_t;
+    typedef uint64_t uintptr_t;
+#endif
 
 #  define __INT64_C(c)  c ## LL
 #  define __UINT64_C(c) c ## ULL

challenges/FailAV/CMakeLists.txt

@@ -1,7 +1,7 @@
 set( VULN_COUNT "1" )
 add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS )
 set( override LDFLAGS "-nostdlib -static -Ttext=0x90000000" )
-add_compile_options( -Oz -g )
+add_compile_options( -Os -g -fpermissive -fms-extensions)
 set( SERVICE_ID "00091" )
 set( AUTHOR_ID "KPRCA" )
 buildCB()

challenges/Messaging/CMakeLists.txt

@@ -1,6 +1,6 @@
 add_compile_options( -fno-exceptions -fno-rtti -DCPLUSPLUS )
 set( SERVICE_ID "00075" )
 set( AUTHOR_ID "KPRCA" )
-add_compile_options( -O3 -g -DDISABLE_HEAP_GUARD )
+add_compile_options( -O3 -g -DDISABLE_HEAP_GUARD -fpermissive -fms-extensions )
 set( VULN_COUNT "1" )
 buildCB()

challenges/PTaaS/CMakeLists.txt

@@ -1,6 +1,6 @@
 set( SERVICE_ID "00054" )
 set( AUTHOR_ID "NRFIN" )
-add_compile_options( -O0 -g -mno-sse )
+add_compile_options( -O0 -g -msse2 )
 set( VULN_COUNT "1" )
 buildCB()
 buildSO()

challenges/ValveChecks/CMakeLists.txt

@@ -1,6 +1,6 @@
 set( POLLS_TESTING_SEED "1677617456" )
 set( POLLS_RELEASE_SEED "1681795162" )
-add_compile_options( -mno-sse -O0 -g -fcommon )
+add_compile_options( -msse2 -O0 -g -fcommon )
 set( SERVICE_ID "00016" )
 set( AUTHOR_ID "NRFIN" )
 set( POLLS_RELEASE_COUNT "1000" )

cmake/32.cmake

@@ -0,0 +1,20 @@
+set(CMAKE_SYSTEM_PROCESSOR i686)
+
+set(CMAKE_C_COMPILER clang)
+set(CMAKE_CXX_COMPILER clang++)
+
+if(WIN32)
+    set(CMAKE_ASM_MASM_COMPILER clang)
+else(WIN32)    
+    set(CMAKE_ASM_COMPILER clang)
+endif(WIN32)
+
+set(CMAKE_C_FLAGS_INIT -m32)
+set(CMAKE_CXX_FLAGS_INIT -m32)
+set(CMAKE_ASM_FLAGS_INIT -m32)
+
+set(CMAKE_EXE_LINKER_FLAGS_INIT -m32)
+set(CMAKE_SHARED_LINKER_FLAGS_INIT -m32)
+set(CMAKE_MODULE_LINKER_FLAGS_INIT -m32)
+
+add_compile_definitions(X32_COMPILE)

cmake/64.cmake

@@ -0,0 +1,10 @@
+set(CMAKE_SYSTEM_PROCESSOR amd64)
+
+set(CMAKE_C_COMPILER clang)
+set(CMAKE_CXX_COMPILER clang++)
+
+if(WIN32)
+    set(CMAKE_ASM_MASM_COMPILER clang)
+else(WIN32)    
+    set(CMAKE_ASM_COMPILER clang)
+endif(WIN32)