Add version handling

CMakeLists.txt

@@ -7,13 +7,27 @@ pkg_check_modules(ELF REQUIRED libelf)
 
 set (CFILES
 	main.c
+	version.c
 )
 
+set(GEN_HEADER_PATH "${CMAKE_CURRENT_BINARY_DIR}/include/generated")
+
+add_custom_target(
+		version-header
+	COMMAND
+		mkdir -p ${GEN_HEADER_PATH} && bash "${CMAKE_CURRENT_SOURCE_DIR}/gen_version_header.sh" "${GEN_HEADER_PATH}/version.h"
+	WORKING_DIRECTORY
+		${CMAKE_CURRENT_SOURCE_DIR}
+	)
+
+add_compile_options(-Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter)
+
 add_executable(${PROJECT_NAME} ${CFILES})
 target_link_libraries(${PROJECT_NAME} ${ELF_LIBRARIES})
 target_link_directories(${PROJECT_NAME} PRIVATE ${ELF_LIBRARY_DIRS})
 target_include_directories(${PROJECT_NAME} PRIVATE ${ELF_INCLUDE_DIRS})
-
-
+target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/include")
+target_include_directories(${PROJECT_NAME} PRIVATE "include")
+add_dependencies(${PROJECT_NAME} version-header)
 
 

gen_version_header.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+if [[ -z $1 ]]; then
+	exit -1;
+fi
+
+ver=`git describe --tags --always --dirty`
+echo "#ifndef _VERSION_GENERATED_H_" > $1
+echo "#define _VERSION_GENERATED_H_" >> $1
+echo "#define GIT_VERSION_STRING \"$ver\"" >> $1
+echo "#endif /* _VERSION_GENERATED_H_ */" >> $1

include/patchelfcrc/version.h

@@ -0,0 +1,7 @@
+#ifndef _VERSION_H_
+#define _VERSION_H_
+
+extern const char *version_string;
+extern const char *argp_program_version;
+
+#endif /* _VERSION_H_ */

main.c

@@ -2,6 +2,7 @@
 #include <libelf.h>
 #include <argp.h>
 #include <stdbool.h>
+#include <patchelfcrc/version.h>
 
 #define print_err(fmt, ...) fprintf(stderr, (fmt), ## __VA_ARGS__);
 #define print_debug(fmt, ...) do { \
@@ -10,6 +11,8 @@
 				} \
 				} while (0)
 
+const char *argp_program_bug_address = "<mario.huettel@linux.com>";
+
 enum granularity {
 	GRANULARITY_BYTE = 1,
 	GRANULARITY_16BIT,
@@ -31,17 +34,22 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state)
 	default:
 		return ARGP_ERR_UNKNOWN;
 	}
+
+
+	return 0;
 }
 
 static int parse_cmdline_options(int *argc, char ***argv, struct command_line_options *cmd_opts)
 {
+	error_t err;
+
 	if (!argc || !argv)
 		return -1000;
 
 	static struct argp_option options[] = {
-		{"little-endian", 'l', 0, 0, "Memory image is little endian. Only relevant if granularity is greater than a single byte"},
+		{"little-endian", 'l', 0, 0, "Memory image is little endian. Only relevant if granularity is greater than a single byte", 0},
 		/* Sentinel */
-		{NULL, 0, 0, 0, NULL}
+		{NULL, 0, 0, 0, NULL, 0}
 	};
 
 	static struct argp arg_parser = {
@@ -52,8 +60,9 @@ static int parse_cmdline_options(int *argc, char ***argv, struct command_line_op
 		0, 0, 0
 	};
 
-	argp_parse(&arg_parser, *argc, *argv, 0, 0, cmd_opts);
+	err = argp_parse(&arg_parser, *argc, *argv, 0, 0, cmd_opts);
 
+	return err ? -1 : 0;
 }
 
 int main(int argc, char **argv)

version.c

@@ -0,0 +1,5 @@
+#include <patchelfcrc/version.h>
+#include <generated/version.h>
+
+const char *version_string = GIT_VERSION_STRING;
+const char *argp_program_version = GIT_VERSION_STRING;