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Diffstat (limited to 'ld/emultempl/aix.em')
| -rw-r--r-- | ld/emultempl/aix.em | 1275 |
1 files changed, 0 insertions, 1275 deletions
diff --git a/ld/emultempl/aix.em b/ld/emultempl/aix.em deleted file mode 100644 index 9b037a0d632..00000000000 --- a/ld/emultempl/aix.em +++ /dev/null @@ -1,1275 +0,0 @@ -# This shell script emits a C file. -*- C -*- -# It does some substitutions. -if [ -z "$MACHINE" ]; then - OUTPUT_ARCH=${ARCH} -else - OUTPUT_ARCH=${ARCH}:${MACHINE} -fi -cat >e${EMULATION_NAME}.c <<EOF -/* This file is is generated by a shell script. DO NOT EDIT! */ - -/* AIX emulation code for ${EMULATION_NAME} - Copyright 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2001 - Free Software Foundation, Inc. - Written by Steve Chamberlain <sac@cygnus.com> - AIX support by Ian Lance Taylor <ian@cygnus.com> - AIX 64 bit support by Tom Rix <trix@redhat.com> - -This file is part of GLD, the Gnu Linker. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define TARGET_IS_${EMULATION_NAME} - -#include "bfd.h" -#include "sysdep.h" -#include "libiberty.h" -#include "getopt.h" -#include "obstack.h" -#include "bfdlink.h" - -#include <ctype.h> - -#include "ld.h" -#include "ldmain.h" -#include "ldemul.h" -#include "ldfile.h" -#include "ldmisc.h" -#include "ldexp.h" -#include "ldlang.h" -#include "ldctor.h" -#include "ldgram.h" - -#include "coff/internal.h" -#include "coff/xcoff.h" - -static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); -static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **)); -static void gld${EMULATION_NAME}_after_open PARAMS ((void)); -static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); -static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean)); -static void gld${EMULATION_NAME}_free PARAMS ((PTR)); -static void gld${EMULATION_NAME}_find_relocs - PARAMS ((lang_statement_union_type *)); -static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); -static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); - -/* The file alignment required for each section. */ -static unsigned long file_align; - -/* The maximum size the stack is permitted to grow. This is stored in - the a.out header. */ -static unsigned long maxstack; - -/* The maximum data size. This is stored in the a.out header. */ -static unsigned long maxdata; - -/* Whether to perform garbage collection. */ -static int gc = 1; - -/* The module type to use. */ -static unsigned short modtype = ('1' << 8) | 'L'; - -/* Whether the .text section must be read-only (i.e., no relocs - permitted). */ -static int textro; - -/* Whether to implement Unix like linker semantics. */ -static int unix_ld; - -/* Structure used to hold import file list. */ - -struct filelist -{ - struct filelist *next; - const char *name; -}; - -/* List of import files. */ -static struct filelist *import_files; - -/* List of export symbols read from the export files. */ - -struct export_symbol_list -{ - struct export_symbol_list *next; - const char *name; - boolean syscall; -}; - -static struct export_symbol_list *export_symbols; - -/* Maintains the 32 or 64 bit mode state of import file */ -static unsigned int symbol_mode = 0x04; - -/* This routine is called before anything else is done. */ - -static void -gld${EMULATION_NAME}_before_parse() -{ -#ifndef TARGET_ /* I.e., if not generic. */ - const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}"); - if (arch) - { - ldfile_output_architecture = arch->arch; - ldfile_output_machine = arch->mach; - ldfile_output_machine_name = arch->printable_name; - } - else - ldfile_output_architecture = bfd_arch_${ARCH}; -#endif /* not TARGET_ */ - config.has_shared = true; - - /* - * The link_info.[init|fini]_functions are initialized in ld/lexsup.c. - * Override them here so we can use the link_info.init_function as a - * state flag that lets the backend know that -binitfini has been done. - */ - link_info.init_function = NULL; - link_info.fini_function = NULL; - -} - -/* Handle AIX specific options. */ - -static int -gld${EMULATION_NAME}_parse_args (argc, argv) - int argc; - char **argv; -{ - int prevoptind = optind; - int prevopterr = opterr; - int indx; - int longind; - int optc; - bfd_signed_vma val; - char *end; - - enum { - OPTION_IGNORE = 300, - OPTION_AUTOIMP, - OPTION_ERNOTOK, - OPTION_EROK, - OPTION_EXPORT, - OPTION_IMPORT, - OPTION_INITFINI, - OPTION_LOADMAP, - OPTION_MAXDATA, - OPTION_MAXSTACK, - OPTION_MODTYPE, - OPTION_NOAUTOIMP, - OPTION_NOSTRCMPCT, - OPTION_PD, - OPTION_PT, - OPTION_STRCMPCT, - OPTION_UNIX - }; - - /* - b64 is an empty option. The native linker uses -b64 for xcoff64 support - Our linker uses -m aixppc64 for xcoff64 support. The choice for the - correct emulation is done in collect2.c via the environmental varible - LDEMULATION. - - binitfini has special handling in the linker backend. The native linker - uses the arguemnts to generate a table of init and fini functions for - the executable. The important use for this option is to support aix 4.2+ - c++ constructors and destructors. This is tied into gcc via collect2.c. - The function table is accessed by the runtime linker/loader by checking if - the first symbol in the loader symbol table is "__rtinit". The native - linker generates this table and the loader symbol. The gnu linker looks - for the symbol "__rtinit" and makes it the first loader symbol. It is the - responsiblity of the user to define the __rtinit symbol. The format for - __rtinit is given by the aix system file /usr/include/rtinit.h. You can - look at collect2.c to see an example of how this is done for 32 and 64 bit. - Below is an exmaple of a 32 bit assembly file that defines __rtinit. - - .file "my_rtinit.s" - - .csect .data[RW],3 - .globl __rtinit - .extern init_function - .extern fini_function - - __rtinit: - .long 0 - .long f1i - __rtinit - .long f1f - __rtinit - .long f2i - f1i - .align 3 - f1i: .long init_function - .long s1i - __rtinit - .long 0 - f2i: .long 0 - .long 0 - .long 0 - f1f: .long fini_function - .long s1f - __rtinit - .long 0 - f2f: .long 0 - .long 0 - .long 0 - .align 3 - s1i: .string "init_function" - .align 3 - s1f: .string "fini_function" - - */ - - static const struct option longopts[] = { - {"basis", no_argument, NULL, OPTION_IGNORE}, - {"bautoimp", no_argument, NULL, OPTION_AUTOIMP}, - {"bcomprld", no_argument, NULL, OPTION_IGNORE}, - {"bcrld", no_argument, NULL, OPTION_IGNORE}, - {"bcror31", no_argument, NULL, OPTION_IGNORE}, - {"bD", required_argument, NULL, OPTION_MAXDATA}, - {"bE", required_argument, NULL, OPTION_EXPORT}, - {"bernotok", no_argument, NULL, OPTION_ERNOTOK}, - {"berok", no_argument, NULL, OPTION_EROK}, - {"berrmsg", no_argument, NULL, OPTION_IGNORE}, - {"bexport", required_argument, NULL, OPTION_EXPORT}, - {"bf", no_argument, NULL, OPTION_ERNOTOK}, - {"bgc", no_argument, &gc, 1}, - {"bh", required_argument, NULL, OPTION_IGNORE}, - {"bhalt", required_argument, NULL, OPTION_IGNORE}, - {"bI", required_argument, NULL, OPTION_IMPORT}, - {"bimport", required_argument, NULL, OPTION_IMPORT}, - {"binitfini", required_argument, NULL, OPTION_INITFINI}, - {"bl", required_argument, NULL, OPTION_LOADMAP}, - {"bloadmap", required_argument, NULL, OPTION_LOADMAP}, - {"bmaxdata", required_argument, NULL, OPTION_MAXDATA}, - {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK}, - {"bM", required_argument, NULL, OPTION_MODTYPE}, - {"bmodtype", required_argument, NULL, OPTION_MODTYPE}, - {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP}, - {"bnodelcsect", no_argument, NULL, OPTION_IGNORE}, - {"bnoentry", no_argument, NULL, OPTION_IGNORE}, - {"bnogc", no_argument, &gc, 0}, - {"bnso", no_argument, NULL, OPTION_NOAUTOIMP}, - {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT}, - {"bnotextro", no_argument, &textro, 0}, - {"bnro", no_argument, &textro, 0}, - {"bpD", required_argument, NULL, OPTION_PD}, - {"bpT", required_argument, NULL, OPTION_PT}, - {"bro", no_argument, &textro, 1}, - {"bS", required_argument, NULL, OPTION_MAXSTACK}, - {"bso", no_argument, NULL, OPTION_AUTOIMP}, - {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT}, - {"btextro", no_argument, &textro, 1}, - {"b64", no_argument, NULL, 0}, - {"static", no_argument, NULL, OPTION_NOAUTOIMP}, - {"unix", no_argument, NULL, OPTION_UNIX}, - {NULL, no_argument, NULL, 0} - }; - - /* Options supported by the AIX linker which we do not support: -f, - -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps, - -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl, - -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl, - -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink, - -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder, - -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk, - -bx, -bX, -bxref. */ - - /* If the current option starts with -b, change the first : to an =. - The AIX linker uses : to separate the option from the argument; - changing it to = lets us treat it as a getopt option. */ - indx = optind; - if (indx == 0) { - indx = 1; - } - - if (indx < argc && strncmp (argv[indx], "-b", 2) == 0) { - char *s; - - for (s = argv[indx]; *s != '\0'; s++) { - if (*s == ':') { - *s = '='; - break; - } - } - } - - - /* We add s and u so to the short options list so that -s and -u on - the command line do not match -static and -unix. */ - - opterr = 0; - optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind); - opterr = prevopterr; - - switch (optc) - { - case 's': - case 'u': - default: - optind = prevoptind; - return 0; - - case 0: - /* Long option which just sets a flag. */ - break; - - case 'D': - val = strtoll (optarg, &end, 0); - if (*end != '\0') - einfo ("%P: warning: ignoring invalid -D number %s\n", optarg); - else if (val != -1) - lang_section_start (".data", exp_intop (val)); - break; - - case 'H': - val = strtoul (optarg, &end, 0); - if (*end != '\0' - || (val & (val - 1)) != 0) - einfo ("%P: warning: ignoring invalid -H number %s\n", optarg); - else - file_align = val; - break; - - case 'K': - case 'z': - /* FIXME: This should use the page size for the target system. */ - file_align = 4096; - break; - - case 'T': - /* On AIX this is the same as GNU ld -Ttext. When we see -T - number, we assume the AIX option is intended. Otherwise, we - assume the usual GNU ld -T option is intended. We can't just - ignore the AIX option, because gcc passes it to the linker. */ - val = strtoull (optarg, &end, 0); - if (*end != '\0') - { - optind = prevoptind; - return 0; - } - lang_section_start (".text", exp_intop (val)); - break; - - case OPTION_IGNORE: - break; - - case OPTION_INITFINI: { - /* - * The aix linker init fini has the format : - * - * -binitfini:[ Initial][:Termination][:Priority] - * - * it allows the Termination and Priority to be optional. - * - * Since we support only one init/fini pair, we ignore the Priority. - * - * Define the special symbol __rtinit. - * - * strtok does not correctly handle the case of -binitfini::fini: so - * do it by hand - */ - char *t, *i, *f; - - i = t = optarg; - while (*t && ':' != *t) t++; - if (*t) *t++ = 0; - - if (0 != strlen(i)) { - link_info.init_function = i; - } - - f = t; - while (*t && ':' != *t) t++; - *t = 0; - - if (0 != strlen(f)) { - link_info.fini_function = f; - } - } - break; - - case OPTION_AUTOIMP: - link_info.static_link = false; - break; - - case OPTION_ERNOTOK: - force_make_executable = false; - break; - - case OPTION_EROK: - force_make_executable = true; - break; - - case OPTION_EXPORT: - gld${EMULATION_NAME}_read_file (optarg, false); - break; - - case OPTION_IMPORT: - { - struct filelist *n; - struct filelist **flpp; - - n = (struct filelist *) xmalloc (sizeof (struct filelist)); - n->next = NULL; - n->name = optarg; - flpp = &import_files; - while (*flpp != NULL) - flpp = &(*flpp)->next; - *flpp = n; - } - break; - - case OPTION_LOADMAP: - config.map_filename = optarg; - break; - - case OPTION_MAXDATA: - val = strtoull (optarg, &end, 0); - if (*end != '\0') - einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", - optarg); - else - maxdata = val; - break; - - case OPTION_MAXSTACK: - val = strtoull (optarg, &end, 0); - if (*end != '\0') - einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n", - optarg); - else - maxstack = val; - break; - - case OPTION_MODTYPE: - if (*optarg == 'S') - { - link_info.shared = true; - ++optarg; - } - if (*optarg == '\0' || optarg[1] == '\0') - einfo ("%P: warning: ignoring invalid module type %s\n", optarg); - else - modtype = (*optarg << 8) | optarg[1]; - break; - - case OPTION_NOAUTOIMP: - link_info.static_link = true; - break; - - case OPTION_NOSTRCMPCT: - link_info.traditional_format = true; - break; - - case OPTION_PD: - /* This sets the page that the .data section is supposed to - start on. The offset within the page should still be the - offset within the file, so we need to build an appropriate - expression. */ - val = strtoull (optarg, &end, 0); - if (*end != '\0') - einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg); - else - { - etree_type *t; - - t = exp_binop ('+', - exp_intop (val), - exp_binop ('&', - exp_nameop (NAME, "."), - exp_intop (0xfff))); - t = exp_binop ('&', - exp_binop ('+', t, exp_intop (31)), - exp_intop (~ (bfd_vma) 31)); - lang_section_start (".data", t); - } - break; - - case OPTION_PT: - /* This set the page that the .text section is supposed to start - on. The offset within the page should still be the offset - within the file. */ - val = strtoull (optarg, &end, 0); - if (*end != '\0') - einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg); - else - { - etree_type *t; - - t = exp_binop ('+', - exp_intop (val), - exp_nameop (SIZEOF_HEADERS, NULL)); - t = exp_binop ('&', - exp_binop ('+', t, exp_intop (31)), - exp_intop (~ (bfd_vma) 31)); - lang_section_start (".text", t); - } - break; - - case OPTION_STRCMPCT: - link_info.traditional_format = false; - break; - - case OPTION_UNIX: - unix_ld = true; - break; - } - - return 1; -} - -/* This is called when an input file can not be recognized as a BFD - object or an archive. If the file starts with #!, we must treat it - as an import file. This is for AIX compatibility. */ - -static boolean -gld${EMULATION_NAME}_unrecognized_file (entry) - lang_input_statement_type *entry; -{ - FILE *e; - boolean ret; - - e = fopen (entry->filename, FOPEN_RT); - if (e == NULL) - return false; - - ret = false; - - if (getc (e) == '#' && getc (e) == '!') - { - struct filelist *n; - struct filelist **flpp; - - n = (struct filelist *) xmalloc (sizeof (struct filelist)); - n->next = NULL; - n->name = entry->filename; - flpp = &import_files; - while (*flpp != NULL) - flpp = &(*flpp)->next; - *flpp = n; - - ret = true; - entry->loaded = true; - } - - fclose (e); - - return ret; -} - -/* This is called after the input files have been opened. */ - -static void -gld${EMULATION_NAME}_after_open () -{ - boolean r; - struct set_info *p; - - /* Call ldctor_build_sets, after pretending that this is a - relocateable link. We do this because AIX requires relocation - entries for all references to symbols, even in a final - executable. Of course, we only want to do this if we are - producing an XCOFF output file. */ - r = link_info.relocateable; - if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL) - link_info.relocateable = true; - ldctor_build_sets (); - link_info.relocateable = r; - - /* For each set, record the size, so that the XCOFF backend can - output the correct csect length. */ - for (p = sets; p != (struct set_info *) NULL; p = p->next) - { - bfd_size_type size; - - /* If the symbol is defined, we may have been invoked from - collect, and the sets may already have been built, so we do - not do anything. */ - if (p->h->type == bfd_link_hash_defined - || p->h->type == bfd_link_hash_defweak) - continue; - - if (p->reloc != BFD_RELOC_CTOR) - { - /* Handle this if we need to. */ - abort (); - } - - size = (p->count + 2) * 4; - if (! bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size)) - einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n"); - } -} - -/* This is called after the sections have been attached to output - sections, but before any sizes or addresses have been set. */ - -static void -gld${EMULATION_NAME}_before_allocation () -{ - struct filelist *fl; - struct export_symbol_list *el; - char *libpath; - asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS]; - int i; - - /* Handle the import and export files, if any. */ - for (fl = import_files; fl != NULL; fl = fl->next) - gld${EMULATION_NAME}_read_file (fl->name, true); - for (el = export_symbols; el != NULL; el = el->next) { - struct bfd_link_hash_entry *h; - - h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false); - if (h == NULL) - einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n"); - if (! bfd_xcoff_export_symbol (output_bfd, &link_info, h, el->syscall)) - einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n"); - } - - /* Track down all relocations called for by the linker script (these - are typically constructor/destructor entries created by - CONSTRUCTORS) and let the backend know it will need to create - .loader relocs for them. */ - lang_for_each_statement (gld${EMULATION_NAME}_find_relocs); - - /* We need to build LIBPATH from the -L arguments. If any -rpath - arguments were used, though, we use -rpath instead, as a GNU - extension. */ - if (command_line.rpath != NULL) - libpath = command_line.rpath; - else if (search_head == NULL) - libpath = (char *) ""; - else - { - size_t len; - search_dirs_type *search; - - len = strlen (search_head->name); - libpath = xmalloc (len + 1); - strcpy (libpath, search_head->name); - for (search = search_head->next; search != NULL; search = search->next) - { - size_t nlen; - - nlen = strlen (search->name); - libpath = xrealloc (libpath, len + nlen + 2); - libpath[len] = ':'; - strcpy (libpath + len + 1, search->name); - len += nlen + 1; - } - } - - /* Let the XCOFF backend set up the .loader section. */ - if (! bfd_xcoff_size_dynamic_sections (output_bfd, &link_info, libpath, - entry_symbol, file_align, - maxstack, maxdata, - gc && ! unix_ld ? true : false, - modtype, - textro ? true : false, - unix_ld, - special_sections)) - einfo ("%P%F: failed to set dynamic section sizes: %E\n"); - - /* Look through the special sections, and put them in the right - place in the link ordering. This is especially magic. */ - for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) { - asection *sec; - lang_output_section_statement_type *os; - lang_statement_union_type **pls; - lang_input_section_type *is; - const char *oname; - boolean start; - - sec = special_sections[i]; - if (sec == NULL) - continue; - - /* Remove this section from the list of the output section. - This assumes we know what the script looks like. */ - is = NULL; - os = lang_output_section_find (sec->output_section->name); - if (os == NULL) { - einfo ("%P%F: can't find output section %s\n", - sec->output_section->name); - } - - for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->next) { - - if ((*pls)->header.type == lang_input_section_enum && - (*pls)->input_section.section == sec) { - is = (lang_input_section_type *) *pls; - *pls = (*pls)->next; - break; - } - - if ((*pls)->header.type == lang_wild_statement_enum) { - lang_statement_union_type **pwls; - - for (pwls = &(*pls)->wild_statement.children.head; - *pwls != NULL; - pwls = &(*pwls)->next) { - - if ((*pwls)->header.type == lang_input_section_enum && - (*pwls)->input_section.section == sec) { - - is = (lang_input_section_type *) *pwls; - *pwls = (*pwls)->next; - break; - } - } - - if (is != NULL) - break; - } - } - - if (is == NULL) { - einfo ("%P%F: can't find %s in output section\n", - bfd_get_section_name (sec->owner, sec)); - } - - /* Now figure out where the section should go. */ - switch (i) { - - default: /* to avoid warnings */ - case XCOFF_SPECIAL_SECTION_TEXT: - /* _text */ - oname = ".text"; - start = true; - break; - - case XCOFF_SPECIAL_SECTION_ETEXT: - /* _etext */ - oname = ".text"; - start = false; - break; - - case XCOFF_SPECIAL_SECTION_DATA: - /* _data */ - oname = ".data"; - start = true; - break; - - case XCOFF_SPECIAL_SECTION_EDATA: - /* _edata */ - oname = ".data"; - start = false; - break; - - case XCOFF_SPECIAL_SECTION_END: - case XCOFF_SPECIAL_SECTION_END2: - /* _end and end */ - oname = ".bss"; - start = false; - break; - } - - os = lang_output_section_find (oname); - - if (start) { - is->header.next = os->children.head; - os->children.head = (lang_statement_union_type *) is; - } else { - is->header.next = NULL; - lang_statement_append (&os->children, - (lang_statement_union_type *) is, - &is->header.next); - } - } -} - -static int change_symbol_mode (char *input) -{ - /* - * 1 : state changed - * 0 : no change - */ - - char *symbol_mode_string[] = { - "# 32", /* 0x01 */ - "# 64", /* 0x02 */ - "# no32", /* 0x04 */ - "# no64", /* 0x08 */ - NULL, - }; - unsigned int bit; - char *string; - - for (bit = 0; ; bit++) { - string = symbol_mode_string[bit]; - if (NULL == string) - return 0; - - if (0 == strcmp(input, string)) { - symbol_mode = (1 << bit); - return 1; - } - } - /* should not be here */ - return 0; -} - - -static int is_syscall(char *input) -{ - /* - * 1 : yes - * 0 : ignore - * -1 : error, try something else - */ - unsigned int bit; - char *string; - - char *syscall_string[] = { - "svc", /* 0x01 */ - "svc32", /* 0x02 */ - "svc3264", /* 0x04 */ - "svc64", /* 0x08 */ - "syscall", /* 0x10 */ - "syscall32", /* 0x20 */ - "syscall3264", /* 0x40 */ - "syscall64", /* 0x80 */ - NULL - }; - - for (bit = 0; ;bit++) { - - string = syscall_string[bit]; - if (NULL == string) { - return -1; - } - - if (0 == strcmp(input, string)) { - if (1 << bit & ${SYSCALL_MASK}) { - return 1; - } else { - return 0; - } - } - } - /* should not be here */ - return -1; -} - - -/* Read an import or export file. For an import file, this is called - by the before_allocation emulation routine. For an export file, - this is called by the parse_args emulation routine. */ - -static void -gld${EMULATION_NAME}_read_file (filename, import) - const char *filename; - boolean import; -{ - struct obstack *o; - FILE *f; - int lineno; - int c; - boolean keep; - const char *imppath; - const char *impfile; - const char *impmember; - - o = (struct obstack *) xmalloc (sizeof (struct obstack)); - obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free); - - f = fopen (filename, FOPEN_RT); - if (f == NULL) - { - bfd_set_error (bfd_error_system_call); - einfo ("%F%s: %E\n", filename); - } - - keep = false; - - imppath = NULL; - impfile = NULL; - impmember = NULL; - - lineno = 0; - - /* - * default to 32 and 64 bit mode - * symbols at top of /lib/syscalls.exp do not have a mode modifier and they - * are not repeated, assume 64 bit routines also want to use them. - * See the routine change_symbol_mode for more information. - */ - symbol_mode = 0x04; - - while ((c = getc (f)) != EOF) - { - char *s; - char *symname; - boolean syscall; - bfd_vma address; - struct bfd_link_hash_entry *h; - - if (c != '\n') - { - obstack_1grow (o, c); - continue; - } - - obstack_1grow (o, '\0'); - ++lineno; - - s = (char *) obstack_base (o); - while (isspace ((unsigned char) *s)) - ++s; - if (*s == '\0' || - *s == '*' || - change_symbol_mode (s) || - (*s == '#' && s[1] == ' ') || - (! import && *s == '#' && s[1] == '!')) - { - obstack_free (o, obstack_base (o)); - continue; - } - - if (*s == '#' && s[1] == '!') - { - s += 2; - while (isspace ((unsigned char) *s)) - ++s; - if (*s == '\0') - { - imppath = NULL; - impfile = NULL; - impmember = NULL; - obstack_free (o, obstack_base (o)); - } - else if (*s == '(') - einfo ("%F%s%d: #! ([member]) is not supported in import files\n", - filename, lineno); - else - { - char cs; - char *file; - - (void) obstack_finish (o); - keep = true; - imppath = s; - file = NULL; - while (! isspace ((unsigned char) *s) && *s != '(' && *s != '\0') - { - if (*s == '/') - file = s + 1; - ++s; - } - if (file != NULL) - { - file[-1] = '\0'; - impfile = file; - if (imppath == file - 1) - imppath = "/"; - } - else - { - impfile = imppath; - imppath = ""; - } - cs = *s; - *s = '\0'; - while (isspace ((unsigned char) cs)) - { - ++s; - cs = *s; - } - if (cs != '(') - { - impmember = ""; - if (cs != '\0') - einfo ("%s:%d: warning: syntax error in import file\n", - filename, lineno); - } - else - { - ++s; - impmember = s; - while (*s != ')' && *s != '\0') - ++s; - if (*s == ')') - *s = '\0'; - else - einfo ("%s:%d: warning: syntax error in import file\n", - filename, lineno); - } - } - - continue; - } - - if (symbol_mode & ${SYMBOL_MODE_MASK}) { - - /* This is a symbol to be imported or exported. */ - symname = s; - syscall = false; - address = (bfd_vma) -1; - - while (! isspace ((unsigned char) *s) && *s != '\0') - ++s; - if (*s != '\0') - { - char *se; - - *s++ = '\0'; - - while (isspace ((unsigned char) *s)) - ++s; - - se = s; - while (! isspace ((unsigned char) *se) && *se != '\0') - ++se; - if (*se != '\0') - { - *se++ = '\0'; - while (isspace ((unsigned char) *se)) - ++se; - if (*se != '\0') - einfo ("%s%d: warning: syntax error in import/export file\n", - filename, lineno); - } - - if (s != se) { - int status; - char *end; - - status = is_syscall(s); - - switch (status) { - case 1: - /* this is a system call */ - syscall = true; - break; - - case 0: - /* ignore this system call */ - break; - - default: - /* not a system call, check for address */ - address = strtoul (s, &end, 0); - if (*end != '\0') { - einfo ("%s:%d: warning: syntax error in import/export file\n", filename, lineno); - - } - } - } - } - - if (! import) - { - struct export_symbol_list *n; - - ldlang_add_undef (symname); - n = ((struct export_symbol_list *) - xmalloc (sizeof (struct export_symbol_list))); - n->next = export_symbols; - n->name = xstrdup (symname); - n->syscall = syscall; - export_symbols = n; - } - else - { - h = bfd_link_hash_lookup (link_info.hash, symname, false, false, - true); - if (h == NULL || h->type == bfd_link_hash_new) - { - /* We can just ignore attempts to import an unreferenced - symbol. */ - } - else - { - if (! bfd_xcoff_import_symbol (output_bfd, &link_info, h, - address, imppath, impfile, - impmember)) - einfo ("%X%s:%d: failed to import symbol %s: %E\n", - filename, lineno, symname); - } - } - } - obstack_free (o, obstack_base (o)); - } - - if (obstack_object_size (o) > 0) - { - einfo ("%s:%d: warning: ignoring unterminated last line\n", - filename, lineno); - obstack_free (o, obstack_base (o)); - } - - if (! keep) - { - obstack_free (o, NULL); - free (o); - } - } - -/* This routine saves us from worrying about declaring free. */ - -static void -gld${EMULATION_NAME}_free (p) - PTR p; -{ - free (p); -} - -/* This is called by the before_allocation routine via - lang_for_each_statement. It looks for relocations and assignments - to symbols. */ - -static void -gld${EMULATION_NAME}_find_relocs (s) - lang_statement_union_type *s; -{ - if (s->header.type == lang_reloc_statement_enum) - { - lang_reloc_statement_type *rs; - - rs = &s->reloc_statement; - if (rs->name == NULL) - einfo ("%F%P: only relocations against symbols are permitted\n"); - if (! bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name)) - einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n"); - } - - if (s->header.type == lang_assignment_statement_enum) - gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); -} - -/* Look through an expression for an assignment statement. */ - -static void -gld${EMULATION_NAME}_find_exp_assignment (exp) - etree_type *exp; -{ - struct bfd_link_hash_entry *h; - - switch (exp->type.node_class) - { - case etree_provide: - h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, - false, false, false); - if (h == NULL) - break; - /* Fall through. */ - case etree_assign: - if (strcmp (exp->assign.dst, ".") != 0) - { - if (! bfd_xcoff_record_link_assignment (output_bfd, &link_info, - exp->assign.dst)) - einfo ("%P%F: failed to record assignment to %s: %E\n", - exp->assign.dst); - } - gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); - break; - - case etree_binary: - gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); - gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); - break; - - case etree_trinary: - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); - gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); - break; - - case etree_unary: - gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); - break; - - default: - break; - } -} - -static char * -gld${EMULATION_NAME}_get_script(isfile) - int *isfile; -EOF - -if test -n "$COMPILE_IN" -then -# Scripts compiled in. - -# sed commands to quote an ld script as a C string. -sc="-f ${srcdir}/emultempl/ostring.sed" - -cat >>e${EMULATION_NAME}.c <<EOF -{ - *isfile = 0; - - if (link_info.relocateable == true && config.build_constructors == true) - return -EOF -sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c -echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c -echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c -echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c -echo ' ; else return' >> e${EMULATION_NAME}.c -sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c -echo '; }' >> e${EMULATION_NAME}.c - -else -# Scripts read from the filesystem. - -cat >>e${EMULATION_NAME}.c <<EOF -{ - *isfile = 1; - - if (link_info.relocateable == true && config.build_constructors == true) - return "ldscripts/${EMULATION_NAME}.xu"; - else if (link_info.relocateable == true) - return "ldscripts/${EMULATION_NAME}.xr"; - else if (!config.text_read_only) - return "ldscripts/${EMULATION_NAME}.xbn"; - else if (!config.magic_demand_paged) - return "ldscripts/${EMULATION_NAME}.xn"; - else - return "ldscripts/${EMULATION_NAME}.x"; -} -EOF - -fi - -cat >>e${EMULATION_NAME}.c <<EOF - -struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = -{ - gld${EMULATION_NAME}_before_parse, - syslib_default, - hll_default, - after_parse_default, - gld${EMULATION_NAME}_after_open, - after_allocation_default, - set_output_arch_default, - ldemul_default_target, - gld${EMULATION_NAME}_before_allocation, - gld${EMULATION_NAME}_get_script, - "${EMULATION_NAME}", - "${OUTPUT_FORMAT}", - 0, /* finish */ - 0, /* create_output_section_statements */ - 0, /* open_dynamic_archive */ - 0, /* place_orphan */ - 0, /* set_symbols */ - gld${EMULATION_NAME}_parse_args, - gld${EMULATION_NAME}_unrecognized_file, - NULL, /* list_options */ - NULL, /* recognized_file */ - NULL, /* find potential_libraries */ -}; -EOF |