From: Nick Clifton Date: Sun, 16 May 1999 14:12:20 +0000 (+0000) Subject: Add support for generating an mcore-elf dll. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=49e315b1a10268f297d4985d60fed19c3b9cd5ae;p=binutils-gdb.git Add support for generating an mcore-elf dll. --- diff --git a/binutils/ChangeLog b/binutils/ChangeLog index c24770f4a7f..8b39b60a591 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,19 @@ +1999-05-16 Nick Clifton + + * dlltool.c (deduce_name): New function: Deduce name of program to + run. + (mcore_elf_out_file): New variable: Name of mcore-elf output file. + (mcore_elf_linker): New variable: Name of linker to use. + (mcore_elf_linker_flags): New variable: Linker flags to pass. + (scan_obj_file): Cache filenames if necessary. + (usage): Document new command line options. + (main): Support new command line options: -M (generate an + mcore-elf output file) -L (name of linker to use) -F (flags to + pass to linker). + (mcore_elf_cache_filename): Store a filename in a cache. + (mcore_elf_gen_out_file): New function: Generate an output file + per the mcore-elf spec. + 1999-05-15 Nick Clifton * configure.in (BUILD_MISC): Build dlltool for mcore diff --git a/binutils/dlltool.c b/binutils/dlltool.c index c76fe396c08..91291262f8e 100644 --- a/binutils/dlltool.c +++ b/binutils/dlltool.c @@ -236,6 +236,15 @@ #include "coff/internal.h" #endif + +/* Forward references. */ +static char * deduce_name (char *); + +#ifdef DLLTOOL_MCORE_ELF +static void mcore_elf_cache_filename (char *); +static void mcore_elf_gen_out_file (void); +#endif + #ifdef HAVE_SYS_WAIT_H #include #else /* ! HAVE_SYS_WAIT_H */ @@ -304,7 +313,7 @@ typedef struct iheadt static iheadtype *import_list = NULL; -static char *as_name = "as"; +static char *as_name = NULL; static char * as_flags = ""; static int no_idata4; @@ -363,6 +372,10 @@ static const char * mname = "mcore"; #ifdef DLLTOOL_MCORE_ELF static const char * mname = "mcore-elf"; +static char * mcore_elf_out_file = NULL; +static char * mcore_elf_linker = NULL; +static char * mcore_elf_linker_flags = NULL; + #define DRECTVE_SECTION_NAME ((machine == MMCORE_ELF || machine == MMCORE_ELF_LE) ? ".exports" : ".drectve") #endif @@ -1412,7 +1425,7 @@ scan_open_obj_file (abfd) /* FIXME: we ought to read in and block out the base relocations */ /* xgettext:c-format */ - inform (_("%s: Done reading %s\n"), bfd_get_filename (abfd)); + inform (_("Done reading %s\n"), bfd_get_filename (abfd)); } static void @@ -1438,10 +1451,20 @@ scan_obj_file (filename) bfd_close (arfile); arfile = bfd_openr_next_archived_file (f, arfile); } + +#ifdef DLLTOOL_MCORE_ELF + if (mcore_elf_out_file) + inform (_("Cannot produce mcore-elf dll from archive file: %s"), filename); +#endif } else if (bfd_check_format (f, bfd_object)) { scan_open_obj_file (f); + +#ifdef DLLTOOL_MCORE_ELF + if (mcore_elf_out_file) + mcore_elf_cache_filename ((char *) filename); +#endif } bfd_close (f); @@ -3063,7 +3086,11 @@ usage (file, status) fprintf (file, _(" -v --verbose Be verbose.\n")); fprintf (file, _(" -V --version Display the program version.\n")); fprintf (file, _(" -h --help Display this information.\n")); - +#ifdef DLLTOOL_MCORE_ELF + fprintf (file, _(" -M --mcore-elf Process mcore-elf object files into .\n")); + fprintf (file, _(" -L --linker Use as the linker.\n")); + fprintf (file, _(" -F --linker-flags Pass to the linker.\n")); +#endif exit (status); } @@ -3071,15 +3098,13 @@ usage (file, status) #define OPTION_NO_EXPORT_ALL_SYMS (OPTION_EXPORT_ALL_SYMS + 1) #define OPTION_EXCLUDE_SYMS (OPTION_NO_EXPORT_ALL_SYMS + 1) #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_EXCLUDE_SYMS + 1) -#define OPTION_NO_IDATA4 'x' -#define OPTION_NO_IDATA5 'c' static const struct option long_options[] = { {"no-delete", no_argument, NULL, 'n'}, {"dllname", required_argument, NULL, 'D'}, - {"no-idata4", no_argument, NULL, OPTION_NO_IDATA4}, - {"no-idata5", no_argument, NULL, OPTION_NO_IDATA5}, + {"no-idata4", no_argument, NULL, 'x'}, + {"no-idata5", no_argument, NULL, 'c'}, {"output-exp", required_argument, NULL, 'e'}, {"output-def", required_argument, NULL, 'z'}, {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL_SYMS}, @@ -3100,6 +3125,7 @@ static const struct option long_options[] = {"base-file", required_argument, NULL, 'b'}, {"as", required_argument, NULL, 'S'}, {"as-flags", required_argument, NULL, 'f'}, + {"mcore-elf", required_argument, NULL, 'M'}, {0} }; @@ -3120,18 +3146,17 @@ main (ac, av) bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); - while ((c = getopt_long (ac, av, "xcz:S:aD:l:e:nkAvVb:Uh?m:d:f:i", + while ((c = getopt_long (ac, av, +#ifdef DLLTOOL_MCORE_ELF + "m:e:l:aD:d:z:b:xcuUkAS:f:nvVhM:L:F:", +#else + "m:e:l:aD:d:z:b:xcuUkAS:f:nvVh", +#endif long_options, 0)) != EOF) { switch (c) { - case OPTION_NO_IDATA4: - no_idata4 = 1; - break; - case OPTION_NO_IDATA5: - no_idata5 = 1; - break; case OPTION_EXPORT_ALL_SYMS: export_all_symbols = true; break; @@ -3144,6 +3169,12 @@ main (ac, av) case OPTION_NO_DEFAULT_EXCLUDES: do_default_excludes = false; break; + case 'x': + no_idata4 = 1; + break; + case 'c': + no_idata5 = 1; + break; case 'S': as_name = optarg; break; @@ -3181,13 +3212,6 @@ main (ac, av) case 'V': print_version (program_name); break; - case 'y': -#if 0 - /* We don't currently define YYDEBUG when building - defparse.y. */ - yydebug = 1; -#endif - break; case 'U': add_underscore = 1; break; @@ -3211,6 +3235,17 @@ main (ac, av) fatal (_("Unable to open base-file: %s"), optarg); break; +#ifdef DLLTOOL_MCORE_ELF + case 'M': + mcore_elf_out_file = optarg; + break; + case 'L': + mcore_elf_linker = optarg; + break; + case 'F': + mcore_elf_linker_flags = optarg; + break; +#endif default: usage (stderr, 1); break; @@ -3218,10 +3253,8 @@ main (ac, av) } for (i = 0; mtable[i].type; i++) - { if (strcmp (mtable[i].type, mname) == 0) break; - } if (!mtable[i].type) /* xgettext:c-format */ @@ -3237,6 +3270,9 @@ main (ac, av) strcat (dll_name, ".dll"); } + if (as_name == NULL) + as_name = deduce_name ("as"); + /* Don't use the default exclude list if we're reading only the symbols in the .drectve section. The default excludes are meant to avoid exporting DLL entry point and Cygwin32 impure_ptr. */ @@ -3280,5 +3316,136 @@ main (ac, av) if (output_def) gen_def_file (); +#ifdef DLLTOOL_MCORE_ELF + if (mcore_elf_out_file) + mcore_elf_gen_out_file (); +#endif + return 0; } + +/* Deduce the name of the program we are want to invoke. + PROG_NAME is the basic name of the program we want to run, + eg "as" or "ld". The catch is that we might want actually + run "i386-pe-as" or "ppc-pe-ld". We detect this case by + examining the name used to invoke dlltool itself. If + dlltool is actually called --dlltool then we + prepend - to the default name. */ +static char * +deduce_name (char * prog_name) +{ + /* Use our own static array to hold the constructed name + rather than the outfile[] array, as that array may + already be in use. */ + static char new_name[32]; + char * p; + + p = strrchr (program_name, '-'); + + if (p == NULL) + return prog_name; + + /* assert (strlen (program_name) < 32); */ + + strcpy (new_name, program_name); + + new_name [(p - program_name) + 1] = 0; + + strcat (new_name, prog_name); + + return new_name; +} + +#ifdef DLLTOOL_MCORE_ELF +typedef struct fname_cache +{ + char * filename; + struct fname_cache * next; +} +fname_cache; + +static fname_cache fnames; + +static void +mcore_elf_cache_filename (char * filename) +{ + fname_cache * ptr; + + ptr = & fnames; + + while (ptr->next != NULL) + ptr = ptr->next; + + ptr->filename = filename; + ptr->next = (fname_cache *) malloc (sizeof (fname_cache)); + if (ptr->next != NULL) + ptr->next->next = NULL; +} + +static void +mcore_elf_gen_out_file (void) +{ + fname_cache * ptr; + + /* Step one. Run 'ld -r' on the input object files in order to resolve + any internal references and to generate a single .exports section. */ + ptr = & fnames; + + strcpy (outfile, "-r "); + + if (mcore_elf_linker_flags != NULL) + strcat (outfile, mcore_elf_linker_flags); + + while (ptr->next != NULL) + { + /* Check for overrun: what the hell, it's only cpu cycles... */ + if (strlen (outfile) + strlen (ptr->filename) + 2 >= sizeof (outfile)) + { + fatal (_("buffer overflow\n")); + return; + } + + strcat (outfile, ptr->filename); + strcat (outfile, " "); + + ptr = ptr->next; + } + + strcat (outfile, "-o mcoreelf.tmp"); + + if (mcore_elf_linker == NULL) + mcore_elf_linker = deduce_name ("ld"); + + run (mcore_elf_linker, outfile); + + /* Step two. Create a .exp file and a .lib file from the temporary file. + Do this by recursively invoking dlltool....*/ + sprintf (outfile, "-S %s", as_name); + + strcat (outfile, " -e mcoreelf.exp -l mcoreelf.lib mcoreelf.tmp"); + + if (verbose) + strcat (outfile, " -v"); + + if (dontdeltemps) + strcat (outfile, " -n"); + + if (dontdeltemps > 1) + strcat (outfile, " -n"); + + /* XXX - FIME: ought to check/copy other command line options as well. */ + + run (program_name, outfile); + + /* Step four. Feed the two new files to ld -shared. */ + strcpy (outfile, "-shared "); + + if (mcore_elf_linker_flags) + strcat (outfile, mcore_elf_linker_flags); + + strcat (outfile, " mcoreelf.exp mcoreelf.lib -o "); + strcat (outfile, mcore_elf_out_file); + + run (mcore_elf_linker, outfile); +} +#endif /* DLLTOOL_MCORE_ELF */