blocks: use auto-generated .c files instead of 'LD -r -b binary'

5 files changed, 55 insertions, 112 deletions

diff --git a/src/blocks/CMakeLists.txt b/src/blocks/CMakeLists.txt
index ebb5408cc..30d85adbf 100644
--- a/src/blocks/CMakeLists.txt
+++ b/src/blocks/CMakeLists.txt
@@ -26,20 +26,23 @@
 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-if(APPLE)
-    add_library(blocks STATIC blockexports.c)
-    set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
-else()
-    if(LINUX_32)
-        add_custom_command(OUTPUT blocks.o MAIN_DEPENDENCY blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
-        add_custom_command(OUTPUT testnet_blocks.o MAIN_DEPENDENCY testnet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/testnet_blocks.o testnet_blocks.dat)
-        add_custom_command(OUTPUT stagenet_blocks.o MAIN_DEPENDENCY stagenet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} -m elf_i386 ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/stagenet_blocks.o stagenet_blocks.dat)
-    else()
-        add_custom_command(OUTPUT blocks.o MAIN_DEPENDENCY blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
-        add_custom_command(OUTPUT testnet_blocks.o MAIN_DEPENDENCY testnet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/testnet_blocks.o testnet_blocks.dat)
-        add_custom_command(OUTPUT stagenet_blocks.o MAIN_DEPENDENCY stagenet_blocks.dat COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ${CMAKE_LINKER} ${LD_RAW_FLAGS} -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/stagenet_blocks.o stagenet_blocks.dat)
-    endif()
-    add_library(blocks STATIC blocks.o testnet_blocks.o stagenet_blocks.o blockexports.c)
-    set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
-endif()
+set(GENERATED_SOURCES "")
 
+foreach(BLOB_NAME checkpoints testnet_blocks stagenet_blocks)
+    set(OUTPUT_C_SOURCE "generated_${BLOB_NAME}.c")
+    list(APPEND GENERATED_SOURCES ${OUTPUT_C_SOURCE})
+    set(INPUT_DAT_FILE "${BLOB_NAME}.dat")
+    add_custom_command(
+        OUTPUT ${OUTPUT_C_SOURCE} 
+        MAIN_DEPENDENCY ${INPUT_DAT_FILE} 
+        COMMAND 
+            cd ${CMAKE_CURRENT_BINARY_DIR} && 
+            echo "'#include\t<stddef.h>'" > ${OUTPUT_C_SOURCE} &&
+            echo "'const\tunsigned\tchar\t${BLOB_NAME}[]={'" >> ${OUTPUT_C_SOURCE} &&
+            od -v -An -tu1 ${CMAKE_CURRENT_SOURCE_DIR}/${INPUT_DAT_FILE} | sed -e "'s/[0-9]\\{1,\\}/&,/g'" -e "'$$s/.$$//'" >> ${OUTPUT_C_SOURCE} &&
+            echo "'};'" >> ${OUTPUT_C_SOURCE} &&
+            echo "'const\tsize_t\t${BLOB_NAME}_len\t=\tsizeof(${BLOB_NAME});'" >> ${OUTPUT_C_SOURCE}
+    )
+endforeach()
+
+add_library(blocks STATIC blocks.cpp ${GENERATED_SOURCES})
diff --git a/src/blocks/blockexports.c b/src/blocks/blockexports.c
deleted file mode 100644
index 0154b0413..000000000
--- a/src/blocks/blockexports.c
+++ /dev/null
@@ -1,87 +0,0 @@
-#include <stddef.h>
-
-#if defined(__APPLE__)
-#include <mach-o/getsect.h>
-#ifdef BUILD_SHARED_LIBS
-#if !defined(__LP64__)
-const struct mach_header _mh_execute_header;
-#else
-const struct mach_header_64 _mh_execute_header;
-#endif
-#else
-#if !defined(__LP64__)
-extern const struct mach_header _mh_execute_header;
-#else
-extern const struct mach_header_64 _mh_execute_header;
-#endif
-#endif
-
-const unsigned char *get_blocks_dat_start(int testnet, int stagenet)
-{
-    size_t size;
-    if (testnet)
-        return getsectiondata(&_mh_execute_header, "__DATA", "__testnet_blocks_dat", &size);
-    else if (stagenet)
-        return getsectiondata(&_mh_execute_header, "__DATA", "__stagenet_blocks_dat", &size);
-    else
-        return getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
-}
-
-size_t get_blocks_dat_size(int testnet, int stagenet)
-{
-    size_t size;
-    if (testnet)
-        getsectiondata(&_mh_execute_header, "__DATA", "__testnet_blocks_dat", &size);
-    else if (stagenet)
-        getsectiondata(&_mh_execute_header, "__DATA", "__stagenet_blocks_dat", &size);
-    else
-        getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
-    return size;
-}
-
-#else
-
-#if defined(_WIN32) && !defined(_WIN64)
-#define _binary_blocks_start binary_blocks_dat_start
-#define _binary_blocks_end binary_blocks_dat_end
-#define _binary_testnet_blocks_start binary_testnet_blocks_dat_start
-#define _binary_testnet_blocks_end binary_testnet_blocks_dat_end
-#define _binary_stagenet_blocks_start binary_stagenet_blocks_dat_start
-#define _binary_stagenet_blocks_end binary_stagenet_blocks_dat_end
-#else
-#define _binary_blocks_start _binary_blocks_dat_start
-#define _binary_blocks_end _binary_blocks_dat_end
-#define _binary_testnet_blocks_start _binary_testnet_blocks_dat_start
-#define _binary_testnet_blocks_end _binary_testnet_blocks_dat_end
-#define _binary_stagenet_blocks_start _binary_stagenet_blocks_dat_start
-#define _binary_stagenet_blocks_end _binary_stagenet_blocks_dat_end
-#endif
-
-extern const unsigned char _binary_blocks_start[];
-extern const unsigned char _binary_blocks_end[];
-extern const unsigned char _binary_testnet_blocks_start[];
-extern const unsigned char _binary_testnet_blocks_end[];
-extern const unsigned char _binary_stagenet_blocks_start[];
-extern const unsigned char _binary_stagenet_blocks_end[];
-
-const unsigned char *get_blocks_dat_start(int testnet, int stagenet)
-{
-  if (testnet)
-    return _binary_testnet_blocks_start;
-  else if (stagenet)
-    return _binary_stagenet_blocks_start;
-  else
-    return _binary_blocks_start;
-}
-
-size_t get_blocks_dat_size(int testnet, int stagenet)
-{
-  if (testnet)
-    return (size_t) (_binary_testnet_blocks_end - _binary_testnet_blocks_start);
-  else if (stagenet)
-    return (size_t) (_binary_stagenet_blocks_end - _binary_stagenet_blocks_start);
-  else
-    return (size_t) (_binary_blocks_end - _binary_blocks_start);
-}
-
-#endif
diff --git a/src/blocks/blocks.cpp b/src/blocks/blocks.cpp
new file mode 100644
index 000000000..0661f8448
--- /dev/null
+++ b/src/blocks/blocks.cpp
@@ -0,0 +1,31 @@
+#include "blocks.h"
+
+#include <unordered_map>
+
+extern const unsigned char checkpoints[];
+extern const size_t checkpoints_len;
+extern const unsigned char stagenet_blocks[];
+extern const size_t stagenet_blocks_len;
+extern const unsigned char testnet_blocks[];
+extern const size_t testnet_blocks_len;
+
+namespace blocks
+{
+
+  const std::unordered_map<cryptonote::network_type, const epee::span<const unsigned char>, std::hash<size_t>> CheckpointsByNetwork = {
+    {cryptonote::network_type::MAINNET, {checkpoints, checkpoints_len}},
+    {cryptonote::network_type::STAGENET, {stagenet_blocks, stagenet_blocks_len}},
+    {cryptonote::network_type::TESTNET, {testnet_blocks, testnet_blocks_len}}
+  };
+
+  const epee::span<const unsigned char> GetCheckpointsData(cryptonote::network_type network)
+  {
+    const auto it = CheckpointsByNetwork.find(network);
+    if (it != CheckpointsByNetwork.end())
+    {
+      return it->second;
+    }
+    return nullptr;
+  }
+
+}
diff --git a/src/blocks/blocks.dat b/src/blocks/blocks.dat
deleted file mode 100644
index e69de29bb..000000000
--- a/src/blocks/blocks.dat
+++ /dev/null
diff --git a/src/blocks/blocks.h b/src/blocks/blocks.h
index ec683f47e..14e391319 100644
--- a/src/blocks/blocks.h
+++ b/src/blocks/blocks.h
@@ -1,16 +1,12 @@
 #ifndef SRC_BLOCKS_BLOCKS_H_
 #define SRC_BLOCKS_BLOCKS_H_
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include "cryptonote_config.h"
+#include "span.h"
 
-const unsigned char *get_blocks_dat_start(int testnet, int stagenet);
-size_t get_blocks_dat_size(int testnet, int stagenet);
-
-#ifdef __cplusplus
+namespace blocks
+{
+    const epee::span<const unsigned char> GetCheckpointsData(cryptonote::network_type network);
 }
-#endif
-
 
 #endif /* SRC_BLOCKS_BLOCKS_H_ */