230 lines
9.2 KiB
C
230 lines
9.2 KiB
C
/*
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* Program to generate the so-thresh testcase,
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* including associated linked-against shared libraries.
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* Build as:
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*
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* cc -g -o gen-so-thresh gen-so-thresh.c
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*
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* Invoke as:
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*
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* gen-so-thresh
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*
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* It will put all the code in the current directory (".").
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*
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* A makefile can also be generated if the -makemake option is used.
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* To use the makefile:
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*
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* make -f so-thresh.mk all
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*
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* The name of the application is
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*
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* so-thresh
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*
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* (Revised from a program by John Bishop. --rehrauer)
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*/
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/fcntl.h>
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int main (argc, argv)
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int argc;
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char **argv;
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{
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#define NUMBER_OF_INT_VARS 1500
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#define NUMBER_OF_LIBS 3
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int lib_num = NUMBER_OF_LIBS;
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int i;
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int i2;
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FILE *main_file;
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FILE *lib_file;
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FILE *make_file;
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FILE *link_file;
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char testcase_name [1000];
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char linkfile_name [1000];
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char makefile_name [1000];
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char mainfile_name [1000];
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char file_name[100];
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/*
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* 0123456789 <-- length of field
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* "./fil0000000002.c"; <-- typical filename
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* 12345678901234567890 <-- length of string
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* 10 20
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* ^where null goes
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*/
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char file_name_core[100];
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/* Verify input.
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*/
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if ((argc < 1) || (argc > 2) || (argv == NULL) ||
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((argc == 2) && (strcmp (argv[1], "-makemake") != 0)))
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{
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printf ("** Syntax: %s [-makemake]\n", argv[0]);
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return;
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}
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if (strncmp (argv[0], "gen-", 4) != 0)
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{
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printf ("** This tool expected to be named \"gen-something\"\n");
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return;
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}
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strcpy (testcase_name, argv[0]+4);
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strcpy (linkfile_name, testcase_name);
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strcat (linkfile_name, ".linkopts");
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link_file = fopen (linkfile_name, "w");
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fprintf (link_file, "# Linker options for %s test\n", testcase_name);
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/* Generate the makefile, if requested.
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*/
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if (argc == 2)
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{
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strcpy (makefile_name, testcase_name);
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strcat (makefile_name, ".mk.new");
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make_file = fopen (makefile_name, "w");
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printf (" Note: New makefile (%s) generated.\n", makefile_name);
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printf (" May want to update existing makefile, if any.\n");
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fprintf (make_file, "# Generated automatically by %s\n", argv[0]);
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fprintf (make_file, "# Make file for %s test\n", testcase_name);
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fprintf (make_file, "\n");
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fprintf (make_file, "CFLAGS = +DA1.1 -g\n");
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fprintf (make_file, "\n");
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fprintf (make_file, "# This is how to build this generator.\n");
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fprintf (make_file, "%s.o: %s.c\n", argv[0], argv[0]);
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fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s.o -c %s.c\n", argv[0], argv[0]);
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fprintf (make_file, "%s: %s.o\n", argv[0], argv[0]);
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fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s %s.o\n", argv[0], argv[0]);
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fprintf (make_file, "\n");
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fprintf (make_file, "# This is how to run this generator.\n");
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fprintf (make_file, "# This target should be made before the 'all' target,\n");
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fprintf (make_file, "# to ensure that the shlib sources are all available.\n");
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fprintf (make_file, "require_shlibs: %s\n", argv[0]);
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for (i=0; i < lib_num; i++)
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{
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fprintf (make_file, "\tif ! [ -a lib%2.2d_%s.c ] ; then \\\n", i, testcase_name);
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fprintf (make_file, "\t %s ; \\\n", argv[0]);
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fprintf (make_file, "\tfi\n");
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}
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fprintf (make_file, "\n");
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fprintf (make_file, "# This is how to build all the shlibs.\n");
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fprintf (make_file, "# Be sure to first make the require_shlibs target!\n");
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for (i=0; i < lib_num; i++)
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{
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fprintf (make_file, "lib%2.2d_%s.o: lib%2.2d_%s.c\n", i, testcase_name, i, testcase_name);
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fprintf (make_file, "\t$(CC) $(CFLAGS) +Z -o lib%2.2d_%s.o -c lib%2.2d_%s.c\n", i, testcase_name, i, testcase_name);
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fprintf (make_file, "lib%2.2d-%s.sl: lib%2.2d-%s.o\n", i, testcase_name, i, testcase_name);
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fprintf (make_file, "\t$(LD) $(LDFLAGS) -b -o lib%2.2d-%s.sl lib%2.2d-%s.o\n", i, testcase_name, i, testcase_name);
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}
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fprintf (make_file, "\n");
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fprintf (make_file, "# For convenience, here's names for all pieces of all shlibs.\n");
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fprintf (make_file, "SHLIB_SOURCES = \\\n");
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for (i=0; i < lib_num-1; i++)
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fprintf (make_file, "\tlib%2.2d-%s.c \\\n", i, testcase_name);
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fprintf (make_file, "\tlib%2.2d-%s.c\n", lib_num-1, testcase_name);
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fprintf (make_file, "SHLIB_OBJECTS = $(SHLIB_SOURCES:.c=.o)\n");
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fprintf (make_file, "SHLIBS = $(SHLIB_SOURCES:.c=.sl)\n");
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fprintf (make_file, "SHLIB_NAMES = $(SHLIB_SOURCES:.c=)\n");
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fprintf (make_file, "EXECUTABLES = $(SHLIBS) %s %s\n", argv[0], testcase_name);
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fprintf (make_file, "OBJECT_FILES = $(SHLIB_OBJECTS) %s.o %s.o\n", argv[0], testcase_name);
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fprintf (make_file, "\n");
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fprintf (make_file, "shlib_objects: $(SHLIB_OBJECTS)\n");
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fprintf (make_file, "shlibs: $(SHLIBS)\n");
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fprintf (make_file, "\n");
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fprintf (make_file, "# This is how to build the debuggable testcase that uses the shlibs.\n");
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fprintf (make_file, "%s.o: %s.c\n", testcase_name, testcase_name);
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fprintf (make_file, "\t$(CC) $(CFLAGS) -o %s.o -c %s.c\n", testcase_name, testcase_name);
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fprintf (make_file, "%s: shlibs %s.o\n", testcase_name, testcase_name);
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fprintf (make_file, "\t$(LD) $(LDFLAGS) -o %s -lc -L. ", testcase_name);
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fprintf (make_file, "-c %s /opt/langtools/lib/end.o /lib/crt0.o %s.o\n", linkfile_name, testcase_name);
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fprintf (make_file, "\n");
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fprintf (make_file, "# Yeah, but you should first make the require_shlibs target!\n");
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fprintf (make_file, "all: %s %s\n", testcase_name, argv[0]);
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fprintf (make_file, "\n");
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fprintf (make_file, "# To remove everything built via this makefile...\n");
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fprintf (make_file, "clean:\n");
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/* Do this carefully, to avoid hitting silly HP-UX ARG_MAX limits... */
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fprintf (make_file, "\trm -f lib0*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib1*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib2*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib3*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib4*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib5*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib6*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib7*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib8*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f lib9*-%s.*\n", testcase_name);
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fprintf (make_file, "\trm -f %s %s %s %s.c\n", argv[0], testcase_name, linkfile_name, testcase_name);
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fprintf (make_file, "\n");
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fclose (make_file);
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}
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/* Generate the code for the libraries.
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*/
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for (i=0; i < lib_num; i++) {
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/* Generate the names for the library.
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*/
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sprintf (file_name, "lib%2.2d-%s.c", i, testcase_name);
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sprintf (file_name_core, "lib%2.2d-%s", i, testcase_name);
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/* Generate the source code.
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*/
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lib_file = fopen (file_name, "w");
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fprintf (lib_file, "/* Shared library file number %d */\n", i);
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fprintf (lib_file, "#include <stdio.h>\n\n");
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fprintf (lib_file, "/* The following variables largely exist to bloat this library's debug info. */\n");
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fprintf (lib_file, "static char c_static_buf_%d [100];\n", i);
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for (i2=0; i2<NUMBER_OF_INT_VARS; i2++)
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fprintf (lib_file, "int i_%d_%d;\n", i, i2);
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fprintf (lib_file, "\nint r_%d ()\n", i);
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fprintf (lib_file, "{\n");
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for (i2=0; i2<NUMBER_OF_INT_VARS; i2++)
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fprintf (lib_file, " i_%d_%d = %d*%d;\n", i, i2, i2, i2);
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fprintf (lib_file, " return 1;\n");
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fprintf (lib_file, "}\n\n");
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fprintf (lib_file, "/* end of generated file */\n");
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fclose (lib_file);
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/* Add a linker options line
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*/
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fprintf (link_file, "-l%2.2d-%s\n", i, testcase_name);
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}
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/* Generate the "main" file.
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*/
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strcpy (mainfile_name, testcase_name);
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strcat (mainfile_name, ".c");
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main_file = fopen (mainfile_name, "w");
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fprintf (main_file, "/* Generated test progam with %d shared libraries. */\n\n",
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lib_num);
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fprintf (main_file, "#include <stdio.h>\n\n");
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for (i = 0; i < lib_num; i++) {
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fprintf (main_file, "extern int r_%d();\n", i);
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}
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fprintf (main_file, "\n");
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fprintf (main_file, "int main()\n");
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fprintf (main_file, "{\n");
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fprintf (main_file, " int accum;\n");
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fprintf (main_file, " int lib_num = %d;\n", lib_num);
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for (i = 0; i < lib_num; i++) {
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fprintf (main_file, " accum += r_%d();\n", i);
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}
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fprintf (main_file, " printf( \"Final value: %%d, should be %%d\\n\", accum, lib_num );\n\n");
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fprintf (main_file, " return 0;\n");
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fprintf (main_file, "}\n\n");
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fprintf (main_file, "/* end of generated file */\n");
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fclose (main_file);
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/* Finish up the link file and the build file
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*/
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fclose (link_file);
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}
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/* End of file */
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