6362a3f875
When tracing, we often want to display the human readable name for the various syscall/errno values. Rather than make each target duplicate the lookup, extend the existing maps to include the string directly, and add helper functions to look up the constants. While most targets are autogenerated (from libgloss), the bfin/cris targets have custom maps for the Linux ABI which need to be updated by hand.
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* Generate targ-vals.h and targ-map.c. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct tdefs {
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char *symbol;
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int value;
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};
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static struct tdefs sys_tdefs[] = {
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#define sys_defs
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#include "targ-vals.def"
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#undef sys_defs
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{ 0, 0 }
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};
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static struct tdefs errno_tdefs[] = {
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#define errno_defs
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#include "targ-vals.def"
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#undef errno_defs
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{ 0, 0 }
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};
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static struct tdefs open_tdefs[] = {
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#define open_defs
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#include "targ-vals.def"
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#undef open_defs
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{ 0, 0 }
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};
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static void
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gen_targ_vals_h (void)
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{
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struct tdefs *t;
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printf ("/* Target header values needed by the simulator and gdb. */\n");
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printf ("/* This file is machine generated by gentmap.c. */\n\n");
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printf ("#ifndef TARG_VALS_H\n");
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printf ("#define TARG_VALS_H\n\n");
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printf ("/* syscall values */\n");
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for (t = &sys_tdefs[0]; t->symbol; ++t)
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printf ("#define TARGET_%s %d\n", t->symbol, t->value);
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printf ("\n");
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printf ("/* errno values */\n");
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for (t = &errno_tdefs[0]; t->symbol; ++t)
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printf ("#define TARGET_%s %d\n", t->symbol, t->value);
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printf ("\n");
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printf ("/* open flag values */\n");
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for (t = &open_tdefs[0]; t->symbol; ++t)
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printf ("#define TARGET_%s 0x%x\n", t->symbol, t->value);
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printf ("\n");
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printf ("#endif /* TARG_VALS_H */\n");
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}
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static void
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gen_targ_map_c (void)
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{
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struct tdefs *t;
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printf ("/* Target value mapping utilities needed by the simulator and gdb. */\n");
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printf ("/* This file is machine generated by gentmap.c. */\n\n");
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printf ("#include \"config.h\"\n");
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printf ("#include <errno.h>\n");
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printf ("#include <fcntl.h>\n");
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printf ("#include \"ansidecl.h\"\n");
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printf ("#include \"gdb/callback.h\"\n");
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printf ("#include \"targ-vals.h\"\n");
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printf ("\n");
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printf ("/* syscall mapping table */\n");
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printf ("CB_TARGET_DEFS_MAP cb_init_syscall_map[] = {\n");
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for (t = &sys_tdefs[0]; t->symbol; ++t)
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{
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printf ("#ifdef CB_%s\n", t->symbol);
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/* Skip the "SYS_" prefix for the name. */
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printf (" { \"%s\", CB_%s, TARGET_%s },\n", t->symbol + 4, t->symbol, t->symbol);
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printf ("#endif\n");
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}
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printf (" { 0, -1, -1 }\n");
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printf ("};\n\n");
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printf ("/* errno mapping table */\n");
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printf ("CB_TARGET_DEFS_MAP cb_init_errno_map[] = {\n");
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for (t = &errno_tdefs[0]; t->symbol; ++t)
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{
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printf ("#ifdef %s\n", t->symbol);
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printf (" { \"%s\", %s, TARGET_%s },\n", t->symbol, t->symbol, t->symbol);
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printf ("#endif\n");
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}
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printf (" { 0, 0, 0 }\n");
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printf ("};\n\n");
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printf ("/* open flags mapping table */\n");
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printf ("CB_TARGET_DEFS_MAP cb_init_open_map[] = {\n");
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for (t = &open_tdefs[0]; t->symbol; ++t)
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{
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printf ("#ifdef %s\n", t->symbol);
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printf (" { \"%s\", %s, TARGET_%s },\n", t->symbol, t->symbol, t->symbol);
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printf ("#endif\n");
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}
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printf (" { 0, -1, -1 }\n");
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printf ("};\n\n");
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}
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int
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main (int argc, char *argv[])
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{
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if (argc != 2)
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abort ();
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if (strcmp (argv[1], "-h") == 0)
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gen_targ_vals_h ();
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else if (strcmp (argv[1], "-c") == 0)
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gen_targ_map_c ();
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else
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abort ();
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exit (0);
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}
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