| /* |
| * Program to generate the so-thresh testcase, |
| * including associated linked-against shared libraries. |
| * Build as: |
| * |
| * cc -g -o genso-thresh genso-thresh.c |
| * |
| * Invoke as: |
| * |
| * genso-thresh |
| * |
| * It will put all the code in the current directory ("."). |
| * |
| * A makefile can also be generated if the -makemake option is used. |
| * To use the makefile: |
| * |
| * make -f so-thresh.mk all |
| * |
| * The name of the application is |
| * |
| * so-thresh |
| * |
| * (Revised from a program by John Bishop. --rehrauer) |
| */ |
| |
| #include <stdio.h> |
| #include <sys/stat.h> |
| #include <sys/fcntl.h> |
| |
| int main (argc, argv) |
| int argc; |
| char **argv; |
| { |
| #define NUMBER_OF_INT_VARS 1500 |
| #define NUMBER_OF_LIBS 3 |
| int lib_num = NUMBER_OF_LIBS; |
| int i; |
| int i2; |
| FILE *main_file; |
| FILE *lib_file; |
| FILE *make_file; |
| FILE *link_file; |
| |
| char testcase_name [1000]; |
| char linkfile_name [1000]; |
| char makefile_name [1000]; |
| char mainfile_name [1000]; |
| |
| char file_name[100]; |
| /* |
| * 0123456789 <-- length of field |
| * "./fil0000000002.c"; <-- typical filename |
| * 12345678901234567890 <-- length of string |
| * 10 20 |
| * ^where null goes |
| */ |
| char file_name_core[100]; |
| |
| /* Verify input. |
| */ |
| if ((argc < 1) || (argc > 2) || (argv == NULL) || |
| ((argc == 2) && (strcmp (argv[1], "-makemake") != 0))) |
| { |
| printf ("** Syntax: %s [-makemake]\n", argv[0]); |
| return; |
| } |
| |
| if (strncmp (argv[0], "gen", 3) != 0) |
| { |
| printf ("** This tool expected to be named \"gen<something>\"\n"); |
| return; |
| } |
| strcpy (testcase_name, argv[0]+3); |
| |
| strcpy (linkfile_name, testcase_name); |
| strcat (linkfile_name, ".lopt"); |
| link_file = fopen (linkfile_name, "w"); |
| fprintf (link_file, "# Linker options for %s test\n", testcase_name); |
| |
| /* Generate the makefile, if requested. |
| */ |
| if (argc == 2) |
| { |
| strcpy (makefile_name, testcase_name); |
| strcat (makefile_name, ".mk.new"); |
| make_file = fopen (makefile_name, "w"); |
| printf (" Note: New makefile (%s) generated.\n", makefile_name); |
| printf (" May want to update existing makefile, if any.\n"); |
| fprintf (make_file, "# Generated automatically by %s\n", argv[0]); |
| fprintf (make_file, "# Make file for %s test\n", testcase_name); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "CFLAGS = +DA1.1 -g\n"); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# This is how to build this generator.\n"); |
| fprintf (make_file, "%s.o: %s.c\n", argv[0], argv[0]); |
| fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s.o -c %s.c\n", argv[0], argv[0]); |
| fprintf (make_file, "%s: %s.o\n", argv[0], argv[0]); |
| fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s %s.o\n", argv[0], argv[0]); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# This is how to run this generator.\n"); |
| fprintf (make_file, "# This target should be made before the 'all' target,\n"); |
| fprintf (make_file, "# to ensure that the shlib sources are all available.\n"); |
| fprintf (make_file, "require_shlibs: %s\n", argv[0]); |
| for (i=0; i < lib_num; i++) |
| { |
| fprintf (make_file, "\tif ! [ -a lib%2.2d_%s.c ] ; then \\\n", i, testcase_name); |
| fprintf (make_file, "\t %s ; \\\n", argv[0]); |
| fprintf (make_file, "\tfi\n"); |
| } |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# This is how to build all the shlibs.\n"); |
| fprintf (make_file, "# Be sure to first make the require_shlibs target!\n"); |
| for (i=0; i < lib_num; i++) |
| { |
| fprintf (make_file, "lib%2.2d_%s.o: lib%2.2d_%s.c\n", i, testcase_name, i, testcase_name); |
| fprintf (make_file, "\t$(CC) $(CFLAGS) +Z -o lib%2.2d_%s.o -c lib%2.2d_%s.c\n", i, testcase_name, i, testcase_name); |
| fprintf (make_file, "lib%2.2d-%s.sl: lib%2.2d-%s.o\n", i, testcase_name, i, testcase_name); |
| fprintf (make_file, "\t$(LD) $(LDFLAGS) -b -o lib%2.2d-%s.sl lib%2.2d-%s.o\n", i, testcase_name, i, testcase_name); |
| } |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# For convenience, here's names for all pieces of all shlibs.\n"); |
| fprintf (make_file, "SHLIB_SOURCES = \\\n"); |
| for (i=0; i < lib_num-1; i++) |
| fprintf (make_file, "\tlib%2.2d-%s.c \\\n", i, testcase_name); |
| fprintf (make_file, "\tlib%2.2d-%s.c\n", lib_num-1, testcase_name); |
| fprintf (make_file, "SHLIB_OBJECTS = $(SHLIB_SOURCES:.c=.o)\n"); |
| fprintf (make_file, "SHLIBS = $(SHLIB_SOURCES:.c=.sl)\n"); |
| fprintf (make_file, "SHLIB_NAMES = $(SHLIB_SOURCES:.c=)\n"); |
| fprintf (make_file, "EXECUTABLES = $(SHLIBS) %s %s\n", argv[0], testcase_name); |
| fprintf (make_file, "OBJECT_FILES = $(SHLIB_OBJECTS) %s.o %s.o\n", argv[0], testcase_name); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "shlib_objects: $(SHLIB_OBJECTS)\n"); |
| fprintf (make_file, "shlibs: $(SHLIBS)\n"); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# This is how to build the debuggable testcase that uses the shlibs.\n"); |
| fprintf (make_file, "%s.o: %s.c\n", testcase_name, testcase_name); |
| fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s.o -c %s.c\n", testcase_name, testcase_name); |
| fprintf (make_file, "%s: shlibs %s.o\n", testcase_name, testcase_name); |
| fprintf (make_file, "\t$(LD) $(LDFLAGS) -o %s -lc -L. ", testcase_name); |
| fprintf (make_file, "-c %s /opt/langtools/lib/end.o /lib/crt0.o %s.o\n", linkfile_name, testcase_name); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# Yeah, but you should first make the require_shlibs target!\n"); |
| fprintf (make_file, "all: %s %s\n", testcase_name, argv[0]); |
| fprintf (make_file, "\n"); |
| fprintf (make_file, "# To remove everything built via this makefile...\n"); |
| fprintf (make_file, "clean:\n"); |
| /* Do this carefully, to avoid hitting silly HP-UX ARG_MAX limits... */ |
| fprintf (make_file, "\trm -f lib0*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib1*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib2*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib3*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib4*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib5*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib6*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib7*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib8*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f lib9*-%s.*\n", testcase_name); |
| fprintf (make_file, "\trm -f %s %s %s %s.c\n", argv[0], testcase_name, linkfile_name, testcase_name); |
| fprintf (make_file, "\n"); |
| fclose (make_file); |
| } |
| |
| /* Generate the code for the libraries. |
| */ |
| for (i=0; i < lib_num; i++) { |
| |
| /* Generate the names for the library. |
| */ |
| sprintf (file_name, "lib%2.2d-%s.c", i, testcase_name); |
| sprintf (file_name_core, "lib%2.2d-%s", i, testcase_name); |
| |
| /* Generate the source code. |
| */ |
| lib_file = fopen (file_name, "w"); |
| fprintf (lib_file, "/* Shared library file number %d */\n", i); |
| fprintf (lib_file, "#include <stdio.h>\n\n"); |
| fprintf (lib_file, "/* The following variables largely exist to bloat this library's debug info. */\n"); |
| fprintf (lib_file, "static char c_static_buf_%d [100];\n", i); |
| for (i2=0; i2<NUMBER_OF_INT_VARS; i2++) |
| fprintf (lib_file, "int i_%d_%d;\n", i, i2); |
| fprintf (lib_file, "\nint r_%d ()\n", i); |
| fprintf (lib_file, "{\n"); |
| for (i2=0; i2<NUMBER_OF_INT_VARS; i2++) |
| fprintf (lib_file, " i_%d_%d = %d*%d;\n", i, i2, i2, i2); |
| fprintf (lib_file, " return 1;\n"); |
| fprintf (lib_file, "}\n\n"); |
| fprintf (lib_file, "/* end of generated file */\n"); |
| fclose (lib_file); |
| |
| /* Add a linker options line |
| */ |
| fprintf (link_file, "-l%2.2d-%s\n", i, testcase_name); |
| } |
| |
| /* Generate the "main" file. |
| */ |
| strcpy (mainfile_name, testcase_name); |
| strcat (mainfile_name, ".c"); |
| main_file = fopen (mainfile_name, "w"); |
| fprintf (main_file, "/* Generated test progam with %d shared libraries. */\n\n", |
| lib_num); |
| fprintf (main_file, "#include <stdio.h>\n\n"); |
| |
| for (i = 0; i < lib_num; i++) { |
| fprintf (main_file, "extern int r_%d();\n", i); |
| } |
| |
| fprintf (main_file, "\n"); |
| fprintf (main_file, "int main()\n"); |
| fprintf (main_file, "{\n"); |
| fprintf (main_file, " int accum;\n"); |
| fprintf (main_file, " int lib_num = %d;\n", lib_num); |
| |
| for (i = 0; i < lib_num; i++) { |
| fprintf (main_file, " accum += r_%d();\n", i); |
| } |
| |
| fprintf (main_file, " printf( \"Final value: %%d, should be %%d\\n\", accum, lib_num );\n\n"); |
| fprintf (main_file, " return 0;\n"); |
| fprintf (main_file, "}\n\n"); |
| fprintf (main_file, "/* end of generated file */\n"); |
| fclose (main_file); |
| |
| /* Finish up the link file and the build file |
| */ |
| fclose (link_file); |
| } |
| |
| /* End of file */ |