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/* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and EVAX (openVMS/Alpha) files. Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc. GSD record handling functions EGSD record handling functions Go and read the openVMS linker manual (esp. appendix B) if you don't know what's going on here :-) Written by Klaus K"ampf (kkaempf@rmi.de) 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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #include "sysdep.h" #include "bfd.h" #include "bfdlink.h" #include "libbfd.h" #include "vms.h" /* Typical sections for vax object files. */ #define VAX_CODE_NAME "$CODE" #define VAX_DATA_NAME "$DATA" #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA" /* Typical sections for evax object files. */ #define EVAX_ABS_NAME "$ABS$" #define EVAX_CODE_NAME "$CODE$" #define EVAX_LINK_NAME "$LINK$" #define EVAX_DATA_NAME "$DATA$" #define EVAX_BSS_NAME "$BSS$" #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$" #define EVAX_READONLY_NAME "$READONLY$" #define EVAX_LITERAL_NAME "$LITERAL$" #define EVAX_LITERALS_NAME "$LITERALS" #define EVAX_COMMON_NAME "$COMMON$" #define EVAX_LOCAL_NAME "$LOCAL$" struct sec_flags_struct { char *name; /* Name of section. */ int vflags_always; flagword flags_always; /* Flags we set always. */ int vflags_hassize; flagword flags_hassize; /* Flags we set if the section has a size > 0. */ }; /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible. */ static struct sec_flags_struct vax_section_flags[] = { { VAX_CODE_NAME, (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_SHR | GPS_S_M_EXE | GPS_S_M_RD), (SEC_CODE), (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_SHR | GPS_S_M_EXE | GPS_S_M_RD), (SEC_IN_MEMORY | SEC_CODE | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { VAX_DATA_NAME, (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_RD | GPS_S_M_WRT), (SEC_DATA), (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_RD | GPS_S_M_WRT), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { VAX_ADDRESS_DATA_NAME, (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_RD), (SEC_DATA | SEC_READONLY), (GPS_S_M_PIC | GPS_S_M_REL | GPS_S_M_RD), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { NULL, (GPS_S_M_PIC | GPS_S_M_OVR | GPS_S_M_REL | GPS_S_M_GBL | GPS_S_M_RD | GPS_S_M_WRT), (SEC_DATA), (GPS_S_M_PIC | GPS_S_M_OVR | GPS_S_M_REL | GPS_S_M_GBL | GPS_S_M_RD | GPS_S_M_WRT), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) } }; /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible. */ static struct sec_flags_struct evax_section_flags[] = { { EVAX_ABS_NAME, (EGPS_S_V_SHR), (SEC_DATA), (EGPS_S_V_SHR), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { EVAX_CODE_NAME, (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE), (SEC_CODE), (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE), (SEC_IN_MEMORY | SEC_CODE | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { EVAX_LITERAL_NAME, (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD), (SEC_DATA | SEC_READONLY), (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { EVAX_LINK_NAME, (EGPS_S_V_REL | EGPS_S_V_RD), (SEC_DATA | SEC_READONLY), (EGPS_S_V_REL | EGPS_S_V_RD), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { EVAX_DATA_NAME, (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), (SEC_DATA), (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { EVAX_BSS_NAME, (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), (SEC_NO_FLAGS), (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), (SEC_IN_MEMORY | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { EVAX_READONLYADDR_NAME, (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD), (SEC_DATA | SEC_READONLY), (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { EVAX_READONLY_NAME, (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD), (SEC_DATA | SEC_READONLY), (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { EVAX_LOCAL_NAME, (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), (SEC_DATA), (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, { EVAX_LITERALS_NAME, (EGPS_S_V_PIC | EGPS_S_V_OVR), (SEC_DATA | SEC_READONLY), (EGPS_S_V_PIC | EGPS_S_V_OVR), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, { NULL, (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), (SEC_DATA), (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) } }; /* Retrieve bfd section flags by name and size. */ static flagword vms_secflag_by_name (bfd *abfd, struct sec_flags_struct *section_flags, char *name, int hassize) { int i = 0; while (section_flags[i].name != NULL) { if ((PRIV (is_vax)? strcasecmp (name, section_flags[i].name): strcmp (name, section_flags[i].name)) == 0) { if (hassize) return section_flags[i].flags_hassize; else return section_flags[i].flags_always; } i++; } if (hassize) return section_flags[i].flags_hassize; return section_flags[i].flags_always; } /* Retrieve vms section flags by name and size. */ static flagword vms_esecflag_by_name (struct sec_flags_struct *section_flags, char *name, int hassize) { int i = 0; while (section_flags[i].name != NULL) { if (strcmp (name, section_flags[i].name) == 0) { if (hassize) return section_flags[i].vflags_hassize; else return section_flags[i].vflags_always; } i++; } if (hassize) return section_flags[i].vflags_hassize; return section_flags[i].vflags_always; } #if VMS_DEBUG struct flagdescstruct { const char *name; flagword value; }; static const struct flagdescstruct gpsflagdesc[] = { { "PIC", GPS_S_M_PIC }, { "LIB", GPS_S_M_LIB }, { "OVR", GPS_S_M_OVR }, { "REL", GPS_S_M_REL }, { "GBL", GPS_S_M_GBL }, { "SHR", GPS_S_M_SHR }, { "EXE", GPS_S_M_EXE }, { "RD", GPS_S_M_RD }, { "WRT", GPS_S_M_WRT }, { "VEC", GPS_S_M_VEC }, { "NOMOD", EGPS_S_V_NOMOD }, { "COM", EGPS_S_V_COM }, { NULL, 0 } }; static const struct flagdescstruct gsyflagdesc[] = { { "WEAK", GSY_S_M_WEAK }, { "DEF", GSY_S_M_DEF }, { "UNI", GSY_S_M_UNI }, { "REL", GSY_S_M_REL }, { "COMM", EGSY_S_V_COMM }, { "VECEP", EGSY_S_V_VECEP }, { "NORM", EGSY_S_V_NORM }, { NULL, 0 } }; static char *flag2str (struct flagdescstruct *, flagword); /* Convert flag to printable string. */ static char * flag2str (struct flagdescstruct * flagdesc, flagword flags) { static char res[64]; int next = 0; res[0] = 0; while (flagdesc->name != NULL) { if ((flags & flagdesc->value) != 0) { if (next) strcat (res, ","); else next = 1; strcat (res, flagdesc->name); } flagdesc++; } return res; } #endif /* Input routines. */ static int register_universal_symbol (bfd *abfd, asymbol *symbol, int vms_flags); /* Process GSD/EGSD record return 0 on success, -1 on error. */ int _bfd_vms_slurp_gsd (bfd * abfd, int objtype) { int gsd_type, gsd_size; asection *section; unsigned char *vms_rec; flagword new_flags, old_flags; char *name; asymbol *symbol; vms_symbol_entry *entry; unsigned long base_addr; unsigned long align_addr; static unsigned int psect_idx = 0; #if VMS_DEBUG vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype); #endif switch (objtype) { case EOBJ_S_C_EGSD: PRIV (vms_rec) += 8; /* Skip type, size, l_temp. */ PRIV (rec_size) -= 8; break; case OBJ_S_C_GSD: PRIV (vms_rec) += 1; PRIV (rec_size) -= 1; break; default: return -1; } /* Calculate base address for each section. */ base_addr = 0L; abfd->symcount = 0; while (PRIV (rec_size) > 0) { vms_rec = PRIV (vms_rec); if (objtype == OBJ_S_C_GSD) gsd_type = vms_rec[0]; else { _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size); gsd_type += EVAX_OFFSET; } #if VMS_DEBUG vms_debug (3, "gsd_type %d\n", gsd_type); #endif switch (gsd_type) { case GSD_S_C_PSC: { /* Program section definition. */ asection *old_section = 0; #if VMS_DEBUG vms_debug (4, "GSD_S_C_PSC\n"); #endif /* If this section isn't a bfd section. */ if (PRIV (is_vax) && (psect_idx < (abfd->section_count - 1))) { /* Check for temporary section from TIR record. */ if (psect_idx < PRIV (section_count)) old_section = PRIV (sections)[psect_idx]; else old_section = 0; } name = _bfd_vms_save_counted_string (vms_rec + 8); section = bfd_make_section (abfd, name); if (!section) { (*_bfd_error_handler) (_("bfd_make_section (%s) failed"), name); return -1; } old_flags = bfd_getl16 (vms_rec + 2); section->size = bfd_getl32 (vms_rec + 4); /* allocation */ new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, section->size > 0); if (old_flags & EGPS_S_V_REL) new_flags |= SEC_RELOC; if (old_flags & GPS_S_M_OVR) new_flags |= SEC_IS_COMMON; if (!bfd_set_section_flags (abfd, section, new_flags)) { (*_bfd_error_handler) (_("bfd_set_section_flags (%s, %x) failed"), name, new_flags); return -1; } section->alignment_power = vms_rec[1]; align_addr = (1 << section->alignment_power); if ((base_addr % align_addr) != 0) base_addr += (align_addr - (base_addr % align_addr)); section->vma = (bfd_vma)base_addr; base_addr += section->size; /* Global section is common symbol. */ if (old_flags & GPS_S_M_GBL) { entry = _bfd_vms_enter_symbol (abfd, name); if (entry == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } symbol = entry->symbol; symbol->value = 0; symbol->section = section; symbol->flags = (BSF_GLOBAL | BSF_SECTION_SYM | BSF_OLD_COMMON); } /* Copy saved contents if old_section set. */ if (old_section != 0) { section->contents = old_section->contents; if (section->size < old_section->size) { (*_bfd_error_handler) (_("Size mismatch section %s=%lx, %s=%lx"), old_section->name, (unsigned long) old_section->size, section->name, (unsigned long) section->size); return -1; } else if (section->size > old_section->size) { section->contents = bfd_realloc (old_section->contents, section->size); if (section->contents == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } } } else { section->contents = bfd_zmalloc (section->size); if (section->contents == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } } #if VMS_DEBUG vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ", section->index, name, old_flags, flag2str (gpsflagdesc, old_flags)); vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", section->size, section->vma, section->contents); #endif gsd_size = vms_rec[8] + 9; psect_idx++; } break; case GSD_S_C_EPM: case GSD_S_C_EPMW: #if VMS_DEBUG vms_debug (4, "gsd epm\n"); #endif /* Fall through. */ case GSD_S_C_SYM: case GSD_S_C_SYMW: { int name_offset = 0, value_offset = 0; /* Symbol specification (definition or reference). */ #if VMS_DEBUG vms_debug (4, "GSD_S_C_SYM(W)\n"); #endif old_flags = bfd_getl16 (vms_rec + 2); new_flags = BSF_NO_FLAGS; if (old_flags & GSY_S_M_WEAK) new_flags |= BSF_WEAK; switch (gsd_type) { case GSD_S_C_EPM: name_offset = 11; value_offset = 5; new_flags |= BSF_FUNCTION; break; case GSD_S_C_EPMW: name_offset = 12; value_offset = 6; new_flags |= BSF_FUNCTION; break; case GSD_S_C_SYM: if (old_flags & GSY_S_M_DEF) /* Symbol definition. */ name_offset = 9; else name_offset = 4; value_offset = 5; break; case GSD_S_C_SYMW: if (old_flags & GSY_S_M_DEF) /* Symbol definition. */ name_offset = 10; else name_offset = 5; value_offset = 6; break; } /* Save symbol in vms_symbol_table. */ entry = _bfd_vms_enter_symbol (abfd, _bfd_vms_save_counted_string (vms_rec + name_offset)); if (entry == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } symbol = entry->symbol; if (old_flags & GSY_S_M_DEF) { /* Symbol definition. */ int psect; symbol->value = bfd_getl32 (vms_rec + value_offset); if ((gsd_type == GSD_S_C_SYMW) || (gsd_type == GSD_S_C_EPMW)) psect = bfd_getl16 (vms_rec + value_offset - 2); else psect = vms_rec[value_offset-1]; symbol->section = (asection *)(unsigned long)psect; #if VMS_DEBUG vms_debug (4, "gsd sym def #%d (%s, %ld, %04x=%s)\n", abfd->symcount, symbol->name, (long)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags)); #endif } else { /* Symbol reference. */ #if VMS_DEBUG vms_debug (4, "gsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount, symbol->name, old_flags, flag2str (gsyflagdesc, old_flags)); #endif symbol->section = (asection *)(unsigned long)-1; } gsd_size = vms_rec[name_offset] + name_offset + 1; symbol->flags = new_flags; } break; case GSD_S_C_PRO: case GSD_S_C_PROW: #if VMS_DEBUG vms_debug (4, "gsd pro\n"); #endif break; case GSD_S_C_IDC: #if VMS_DEBUG vms_debug (4, "gsd idc\n"); #endif break; case GSD_S_C_ENV: #if VMS_DEBUG vms_debug (4, "gsd env\n"); #endif break; case GSD_S_C_LSY: #if VMS_DEBUG vms_debug (4, "gsd lsy\n"); #endif break; case GSD_S_C_LEPM: #if VMS_DEBUG vms_debug (4, "gsd lepm\n"); #endif break; case GSD_S_C_LPRO: #if VMS_DEBUG vms_debug (4, "gsd lpro\n"); #endif break; case GSD_S_C_SPSC: #if VMS_DEBUG vms_debug (4, "gsd spsc\n"); #endif break; case GSD_S_C_SYMV: #if VMS_DEBUG vms_debug (4, "gsd symv\n"); #endif break; case GSD_S_C_EPMV: #if VMS_DEBUG vms_debug (4, "gsd epmv\n"); #endif break; case GSD_S_C_PROV: #if VMS_DEBUG vms_debug (4, "gsd prov\n"); #endif break; case EGSD_S_C_PSC + EVAX_OFFSET: { /* Program section definition. */ name = _bfd_vms_save_counted_string (vms_rec + EGPS_S_B_NAMLNG); section = bfd_make_section (abfd, name); if (!section) return -1; old_flags = bfd_getl16 (vms_rec + EGPS_S_W_FLAGS); section->size = bfd_getl32 (vms_rec + EGPS_S_L_ALLOC); new_flags = vms_secflag_by_name (abfd, evax_section_flags, name, section->size > 0); if (old_flags & EGPS_S_V_REL) new_flags |= SEC_RELOC; if (!bfd_set_section_flags (abfd, section, new_flags)) return -1; section->alignment_power = vms_rec[EGPS_S_B_ALIGN]; align_addr = (1 << section->alignment_power); if ((base_addr % align_addr) != 0) base_addr += (align_addr - (base_addr % align_addr)); section->vma = (bfd_vma)base_addr; base_addr += section->size; section->contents = bfd_zmalloc (section->size); if (section->contents == NULL) return -1; section->filepos = (unsigned int)-1; #if VMS_DEBUG vms_debug (4, "EGSD P-section %d (%s, flags %04x=%s) ", section->index, name, old_flags, flag2str(gpsflagdesc, old_flags)); vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", section->size, section->vma, section->contents); #endif } break; case EGSD_S_C_SYM + EVAX_OFFSET: { /* Global symbol specification (definition or reference). */ symbol = bfd_make_empty_symbol (abfd); if (symbol == 0) return -1; old_flags = bfd_getl16 (vms_rec + EGSY_S_W_FLAGS); new_flags = BSF_NO_FLAGS; if (old_flags & EGSY_S_V_WEAK) new_flags |= BSF_WEAK; if (old_flags & EGSY_S_V_DEF) { /* Symbol definition. */ if (old_flags & EGSY_S_V_NORM) new_flags |= BSF_FUNCTION; symbol->name = _bfd_vms_save_counted_string (vms_rec + ESDF_S_B_NAMLNG); symbol->value = bfd_getl64 (vms_rec + ESDF_S_L_VALUE); symbol->section = (asection *)(unsigned long) bfd_getl32 (vms_rec + ESDF_S_L_PSINDX); #if VMS_DEBUG vms_debug (4, "EGSD sym def #%d (%s, %ld, %04x=%s)\n", abfd->symcount, symbol->name, (long)symbol->section, old_flags, flag2str (gsyflagdesc, old_flags)); #endif } else { /* Symbol reference. */ symbol->name = _bfd_vms_save_counted_string (vms_rec + ESRF_S_B_NAMLNG); #if VMS_DEBUG vms_debug (4, "EGSD sym ref #%d (%s, %04x=%s)\n", abfd->symcount, symbol->name, old_flags, flag2str (gsyflagdesc, old_flags)); #endif symbol->section = (asection *)(unsigned long)-1; } symbol->flags = new_flags; /* Register symbol in VMS symbol table. */ entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV (vms_symbol_table), symbol->name, TRUE, FALSE); if (entry == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } if (entry->symbol != NULL) { /* FIXME ?, DEC C generates this. */ #if VMS_DEBUG vms_debug (4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name); #endif } else { entry->symbol = symbol; PRIV (gsd_sym_count)++; abfd->symcount++; } } break; case EGSD_S_C_SYMG + EVAX_OFFSET: { /* Universal symbol specification (definition). */ symbol = bfd_make_empty_symbol (abfd); if (symbol == 0) return -1; old_flags = bfd_getl16 (vms_rec + EGST_S_W_FLAGS); new_flags = BSF_NO_FLAGS; if (old_flags & EGSY_S_V_WEAK) new_flags |= BSF_WEAK; if (old_flags & EGSY_S_V_DEF) /* symbol definition */ { if (old_flags & EGSY_S_V_NORM) new_flags |= BSF_FUNCTION; symbol->name = _bfd_vms_save_counted_string (vms_rec + EGST_S_B_NAMLNG); /* For BSF_FUNCTION symbols, the entry point is in LP_1 and the descriptor in LP_2. For other symbols, the unique value is in LP_2. */ symbol->value = bfd_getl64 (vms_rec + EGST_S_Q_LP_2); /* Adding this offset is necessary in order for GDB to read the DWARF-2 debug info from shared libraries. */ if (abfd->flags & DYNAMIC && strstr (symbol->name, "$DWARF2.DEBUG") != 0) symbol->value += PRIV (symvva); } else /* symbol reference */ (*_bfd_error_handler) ("Invalid EGST reference"); symbol->flags = new_flags; if (register_universal_symbol (abfd, symbol, old_flags) < 0) return -1; /* Make a second symbol for the entry point. */ if (symbol->flags & BSF_FUNCTION) { asymbol *en_sym; name = bfd_alloc (abfd, strlen (symbol->name) + 5); en_sym = bfd_make_empty_symbol (abfd); if (en_sym == 0) return -1; strcpy (name, symbol->name); strcat (name, "..en"); en_sym->name = name; en_sym->value = bfd_getl64 (vms_rec + EGST_S_Q_LP_1); if (register_universal_symbol (abfd, en_sym, old_flags) < 0) return -1; } } break; case EGSD_S_C_IDC + EVAX_OFFSET: break; default: (*_bfd_error_handler) (_("Unknown GSD/EGSD subtype %d"), gsd_type); bfd_set_error (bfd_error_bad_value); return -1; } PRIV (rec_size) -= gsd_size; PRIV (vms_rec) += gsd_size; } if (abfd->symcount > 0) abfd->flags |= HAS_SYMS; return 0; } /* Register a universal symbol in the VMS symbol table. */ static int register_universal_symbol (bfd *abfd, asymbol *symbol, int vms_flags) { bfd_vma sbase = 0; asection *s, *sec = NULL; vms_symbol_entry *entry; /* A universal symbol is by definition global... */ symbol->flags |= BSF_GLOBAL; /* ...and dynamic in shared libraries. */ if (abfd->flags & DYNAMIC) symbol->flags |= BSF_DYNAMIC; /* Find containing section. */ for (s = abfd->sections; s; s = s->next) { if (symbol->value >= s->vma && s->vma > sbase && !(s->flags & SEC_COFF_SHARED_LIBRARY) && (s->size > 0 || !(vms_flags & EGSY_S_V_REL))) { sbase = s->vma; sec = s; } } symbol->value -= sbase; symbol->section = sec; #if VMS_DEBUG vms_debug (4, "EGST sym def #%d (%s, 0x%llx => 0x%llx, %04x=%s)\n", abfd->symcount, symbol->name, symbol->value + sbase, symbol->value, vms_flags, flag2str(gsyflagdesc, vms_flags)); #endif entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV (vms_symbol_table), symbol->name, TRUE, FALSE); if (entry == NULL) { bfd_set_error (bfd_error_no_memory); return -1; } if (entry->symbol) /* FIXME: DEC C generates this */ { #if VMS_DEBUG vms_debug (4, "EGSD_S_C_SYMG: duplicate \"%s\"\n", symbol->name); #endif } else { entry->symbol = symbol; PRIV (gsd_sym_count)++; abfd->symcount++; } return 0; } /* Set section VMS flags. */ void bfd_vms_set_section_flags (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, flagword flags) { vms_section_data (sec)->vflags = flags; } /* Write section and symbol directory of bfd abfd. */ int _bfd_vms_write_gsd (bfd *abfd, int objtype ATTRIBUTE_UNUSED) { asection *section; asymbol *symbol; unsigned int symnum; int last_index = -1; char dummy_name[10]; char *sname; flagword new_flags, old_flags; int abs_section_index = 0; #if VMS_DEBUG vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype); #endif /* Output sections. */ section = abfd->sections; #if VMS_DEBUG vms_debug (3, "%d sections found\n", abfd->section_count); #endif /* Egsd is quadword aligned. */ _bfd_vms_output_alignment (abfd, 8); _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); _bfd_vms_output_long (abfd, 0); /* Prepare output for subrecords. */ _bfd_vms_output_push (abfd); while (section != 0) { #if VMS_DEBUG vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->size); #endif /* Don't write out the VMS debug info section since it is in the ETBT and EDBG sections in etir. */ if (!strcmp (section->name, ".vmsdebug")) goto done; /* 13 bytes egsd, max 31 chars name -> should be 44 bytes. */ if (_bfd_vms_output_check (abfd, 64) < 0) { _bfd_vms_output_pop (abfd); _bfd_vms_output_end (abfd); _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); _bfd_vms_output_long (abfd, 0); /* Prepare output for subrecords. */ _bfd_vms_output_push (abfd); } /* Create dummy sections to keep consecutive indices. */ while (section->index - last_index > 1) { #if VMS_DEBUG vms_debug (3, "index %d, last %d\n", section->index, last_index); #endif _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); _bfd_vms_output_short (abfd, 0); _bfd_vms_output_short (abfd, 0); _bfd_vms_output_long (abfd, 0); sprintf (dummy_name, ".DUMMY%02d", last_index); _bfd_vms_output_counted (abfd, dummy_name); _bfd_vms_output_flush (abfd); last_index++; } /* Don't know if this is necessary for the linker but for now it keeps vms_slurp_gsd happy */ sname = (char *)section->name; if (*sname == '.') { sname++; if ((*sname == 't') && (strcmp (sname, "text") == 0)) sname = PRIV (is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME; else if ((*sname == 'd') && (strcmp (sname, "data") == 0)) sname = PRIV (is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME; else if ((*sname == 'b') && (strcmp (sname, "bss") == 0)) sname = EVAX_BSS_NAME; else if ((*sname == 'l') && (strcmp (sname, "link") == 0)) sname = EVAX_LINK_NAME; else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0)) sname = EVAX_READONLY_NAME; else if ((*sname == 'l') && (strcmp (sname, "literal") == 0)) sname = EVAX_LITERAL_NAME; else if ((*sname == 'l') && (strcmp (sname, "literals") == 0)) { sname = EVAX_LITERALS_NAME; abs_section_index = section->index; } else if ((*sname == 'c') && (strcmp (sname, "comm") == 0)) sname = EVAX_COMMON_NAME; else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0)) sname = EVAX_LOCAL_NAME; } else sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ); _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); _bfd_vms_output_short (abfd, section->alignment_power & 0xff); if (bfd_is_com_section (section)) new_flags = (EGPS_S_V_OVR | EGPS_S_V_REL | EGPS_S_V_GBL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD | EGPS_S_V_COM); else new_flags = vms_esecflag_by_name (evax_section_flags, sname, section->size > 0); /* Modify them as directed. */ if (section->flags & SEC_READONLY) new_flags &= ~EGPS_S_V_WRT; new_flags |= vms_section_data (section)->vflags & 0xffff; new_flags &= ~((vms_section_data (section)->vflags >> EGPS_S_V_NO_SHIFT) & 0xffff); #if VMS_DEBUG vms_debug (3, "sec flags %x\n", section->flags); vms_debug (3, "new_flags %x, _raw_size %d\n", new_flags, section->size); #endif _bfd_vms_output_short (abfd, new_flags); _bfd_vms_output_long (abfd, (unsigned long) section->size); _bfd_vms_output_counted (abfd, sname); _bfd_vms_output_flush (abfd); last_index = section->index; done: section = section->next; } /* Output symbols. */ #if VMS_DEBUG vms_debug (3, "%d symbols found\n", abfd->symcount); #endif bfd_set_start_address (abfd, (bfd_vma) -1); for (symnum = 0; symnum < abfd->symcount; symnum++) { char *hash; symbol = abfd->outsymbols[symnum]; if (*(symbol->name) == '_') { if (strcmp (symbol->name, "__main") == 0) bfd_set_start_address (abfd, (bfd_vma)symbol->value); } old_flags = symbol->flags; if (old_flags & BSF_FILE) continue; if ((old_flags & BSF_GLOBAL) == 0 /* Not xdef... */ && !bfd_is_und_section (symbol->section) /* and not xref... */ && !((old_flags & BSF_SECTION_SYM) != 0 /* and not LIB$INITIALIZE. */ && strcmp (symbol->section->name, "LIB$INITIALIZE") == 0)) continue; /* 13 bytes egsd, max 64 chars name -> should be 77 bytes. */ if (_bfd_vms_output_check (abfd, 80) < 0) { _bfd_vms_output_pop (abfd); _bfd_vms_output_end (abfd); _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); _bfd_vms_output_long (abfd, 0); /* Prepare output for subrecords. */ _bfd_vms_output_push (abfd); } _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1); /* Data type, alignment. */ _bfd_vms_output_short (abfd, 0); new_flags = 0; if (old_flags & BSF_WEAK) new_flags |= EGSY_S_V_WEAK; if (bfd_is_com_section (symbol->section)) /* .comm */ new_flags |= (EGSY_S_V_WEAK | EGSY_S_V_COMM); if (old_flags & BSF_FUNCTION) { new_flags |= EGSY_S_V_NORM; new_flags |= EGSY_S_V_REL; } if (old_flags & BSF_GLOBAL) { new_flags |= EGSY_S_V_DEF; if (!bfd_is_abs_section (symbol->section)) new_flags |= EGSY_S_V_REL; } _bfd_vms_output_short (abfd, new_flags); if (old_flags & BSF_GLOBAL) { /* Symbol definition. */ uquad code_address = 0; unsigned long ca_psindx = 0; unsigned long psindx; if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL) { asymbol *sym; if (bfd_get_flavour (abfd) == bfd_target_evax_flavour) sym = ((struct evax_private_udata_struct *)symbol->udata.p)->enbsym; else sym = (asymbol *)symbol->udata.p; code_address = sym->value; ca_psindx = sym->section->index; } if (bfd_is_abs_section (symbol->section)) psindx = abs_section_index; else psindx = symbol->section->index; _bfd_vms_output_quad (abfd, symbol->value); _bfd_vms_output_quad (abfd, code_address); _bfd_vms_output_long (abfd, ca_psindx); _bfd_vms_output_long (abfd, psindx); } hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ); _bfd_vms_output_counted (abfd, hash); _bfd_vms_output_flush (abfd); } _bfd_vms_output_alignment (abfd, 8); _bfd_vms_output_pop (abfd); _bfd_vms_output_end (abfd); return 0; }
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