| # 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 |
| fragment <<EOF |
| /* This file is part of GLD, the Gnu Linker. |
| Copyright (C) 1995-2016 Free Software Foundation, Inc. |
| |
| This file is part of the GNU Binutils. |
| |
| 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. */ |
| |
| |
| /* For WINDOWS_NT */ |
| /* The original file generated returned different default scripts depending |
| on whether certain switches were set, but these switches pertain to the |
| Linux system and that particular version of coff. In the NT case, we |
| only determine if the subsystem is console or windows in order to select |
| the correct entry point by default. */ |
| |
| #include "sysdep.h" |
| #include "bfd.h" |
| #include "bfdlink.h" |
| #include "getopt.h" |
| #include "libiberty.h" |
| #include "filenames.h" |
| #include "ld.h" |
| #include "ldmain.h" |
| #include "ldexp.h" |
| #include "ldlang.h" |
| #include "ldfile.h" |
| #include "ldemul.h" |
| #include <ldgram.h> |
| #include "ldlex.h" |
| #include "ldmisc.h" |
| #include "ldctor.h" |
| #include "coff/internal.h" |
| #include "../bfd/libcoff.h" |
| |
| #define TARGET_IS_${EMULATION_NAME} |
| |
| static struct internal_extra_pe_aouthdr pe; |
| static int dll; |
| |
| extern const char *output_filename; |
| |
| static void |
| gld_${EMULATION_NAME}_before_parse (void) |
| { |
| ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
| output_filename = "a.exe"; |
| } |
| |
| /* PE format extra command line options. */ |
| |
| /* Used for setting flags in the PE header. */ |
| #define OPTION_BASE_FILE (300 + 1) |
| #define OPTION_DLL (OPTION_BASE_FILE + 1) |
| #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) |
| #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) |
| #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) |
| #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) |
| #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) |
| #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) |
| #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) |
| #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) |
| #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) |
| #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) |
| #define OPTION_SUBSYSTEM (OPTION_STACK + 1) |
| #define OPTION_HEAP (OPTION_SUBSYSTEM + 1) |
| |
| static void |
| gld${EMULATION_NAME}_add_options |
| (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, |
| struct option **longopts, int nrl ATTRIBUTE_UNUSED, |
| struct option **really_longopts ATTRIBUTE_UNUSED) |
| { |
| static const struct option xtra_long[] = { |
| /* PE options */ |
| {"base-file", required_argument, NULL, OPTION_BASE_FILE}, |
| {"dll", no_argument, NULL, OPTION_DLL}, |
| {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, |
| {"heap", required_argument, NULL, OPTION_HEAP}, |
| {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, |
| {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, |
| {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, |
| {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, |
| {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, |
| {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, |
| {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, |
| {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, |
| {"stack", required_argument, NULL, OPTION_STACK}, |
| {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, |
| {NULL, no_argument, NULL, 0} |
| }; |
| |
| *longopts = (struct option *) |
| xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); |
| memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); |
| } |
| |
| |
| /* PE/WIN32; added routines to get the subsystem type, heap and/or stack |
| parameters which may be input from the command line */ |
| |
| typedef struct { |
| void *ptr; |
| int size; |
| int value; |
| char *symbol; |
| int inited; |
| } definfo; |
| |
| #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0} |
| |
| static definfo init[] = |
| { |
| /* imagebase must be first */ |
| #define IMAGEBASEOFF 0 |
| D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE), |
| #define DLLOFF 1 |
| {&dll, sizeof(dll), 0, "__dll__", 0}, |
| D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT), |
| D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT), |
| D(MajorOperatingSystemVersion,"__major_os_version__", 4), |
| D(MinorOperatingSystemVersion,"__minor_os_version__", 0), |
| D(MajorImageVersion,"__major_image_version__", 1), |
| D(MinorImageVersion,"__minor_image_version__", 0), |
| D(MajorSubsystemVersion,"__major_subsystem_version__", 4), |
| D(MinorSubsystemVersion,"__minor_subsystem_version__", 0), |
| D(Subsystem,"__subsystem__", 3), |
| D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000), |
| D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), |
| D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), |
| D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), |
| D(LoaderFlags,"__loader_flags__", 0x0), |
| { NULL, 0, 0, NULL, 0 } |
| }; |
| |
| |
| static void |
| set_pe_name (char *name, long val) |
| { |
| int i; |
| /* Find the name and set it. */ |
| for (i = 0; init[i].ptr; i++) |
| { |
| if (strcmp (name, init[i].symbol) == 0) |
| { |
| init[i].value = val; |
| init[i].inited = 1; |
| return; |
| } |
| } |
| abort(); |
| } |
| |
| |
| static void |
| set_pe_subsystem (void) |
| { |
| const char *sver; |
| int len; |
| int i; |
| static const struct |
| { |
| const char *name; |
| const int value; |
| const char *entry; |
| } |
| v[] = |
| { |
| { "native", 1, "_NtProcessStartup" }, |
| { "windows", 2, "_WinMainCRTStartup" }, |
| { "wwindows", 2, "_wWinMainCRTStartup" }, |
| { "console", 3, "_mainCRTStartup" }, |
| { "wconsole", 3, "_wmainCRTStartup" }, |
| { "posix", 7, "___PosixProcessStartup"}, |
| { 0, 0, 0 } |
| }; |
| |
| sver = strchr (optarg, ':'); |
| if (sver == NULL) |
| len = strlen (optarg); |
| else |
| { |
| char *end; |
| |
| len = sver - optarg; |
| set_pe_name ("__major_subsystem_version__", |
| strtoul (sver + 1, &end, 0)); |
| if (*end == '.') |
| set_pe_name ("__minor_subsystem_version__", |
| strtoul (end + 1, &end, 0)); |
| if (*end != '\0') |
| einfo ("%P: warning: bad version number in -subsystem option\n"); |
| } |
| |
| for (i = 0; v[i].name; i++) |
| { |
| if (strncmp (optarg, v[i].name, len) == 0 |
| && v[i].name[len] == '\0') |
| { |
| set_pe_name ("__subsystem__", v[i].value); |
| |
| /* If the subsystem is windows, we use a different entry |
| point. */ |
| lang_default_entry (v[i].entry); |
| |
| return; |
| } |
| } |
| einfo ("%P%F: invalid subsystem type %s\n", optarg); |
| } |
| |
| |
| static void |
| set_pe_value (char *name) |
| { |
| char *end; |
| set_pe_name (name, strtoul (optarg, &end, 0)); |
| if (end == optarg) |
| { |
| einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg); |
| } |
| |
| optarg = end; |
| } |
| |
| static void |
| set_pe_stack_heap (char *resname, char *comname) |
| { |
| set_pe_value (resname); |
| if (*optarg == ',') |
| { |
| optarg++; |
| set_pe_value (comname); |
| } |
| else if (*optarg) |
| { |
| einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg); |
| } |
| } |
| |
| |
| static bfd_boolean |
| gld${EMULATION_NAME}_handle_option (int optc) |
| { |
| switch (optc) |
| { |
| default: |
| return FALSE; |
| |
| case OPTION_BASE_FILE: |
| link_info.base_file = fopen (optarg, FOPEN_WB); |
| if (link_info.base_file == NULL) |
| einfo (_("%F%P: cannot open base file %s\n"), optarg); |
| break; |
| |
| /* PE options */ |
| case OPTION_HEAP: |
| set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); |
| break; |
| case OPTION_STACK: |
| set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); |
| break; |
| case OPTION_SUBSYSTEM: |
| set_pe_subsystem (); |
| break; |
| case OPTION_MAJOR_OS_VERSION: |
| set_pe_value ("__major_os_version__"); |
| break; |
| case OPTION_MINOR_OS_VERSION: |
| set_pe_value ("__minor_os_version__"); |
| break; |
| case OPTION_MAJOR_SUBSYSTEM_VERSION: |
| set_pe_value ("__major_subsystem_version__"); |
| break; |
| case OPTION_MINOR_SUBSYSTEM_VERSION: |
| set_pe_value ("__minor_subsystem_version__"); |
| break; |
| case OPTION_MAJOR_IMAGE_VERSION: |
| set_pe_value ("__major_image_version__"); |
| break; |
| case OPTION_MINOR_IMAGE_VERSION: |
| set_pe_value ("__minor_image_version__"); |
| break; |
| case OPTION_FILE_ALIGNMENT: |
| set_pe_value ("__file_alignment__"); |
| break; |
| case OPTION_SECTION_ALIGNMENT: |
| set_pe_value ("__section_alignment__"); |
| break; |
| case OPTION_DLL: |
| set_pe_name ("__dll__", 1); |
| break; |
| case OPTION_IMAGE_BASE: |
| set_pe_value ("__image_base__"); |
| break; |
| } |
| return TRUE; |
| } |
| |
| /* Assign values to the special symbols before the linker script is |
| read. */ |
| |
| static void |
| gld_${EMULATION_NAME}_set_symbols (void) |
| { |
| /* Run through and invent symbols for all the |
| names and insert the defaults. */ |
| int j; |
| |
| if (!init[IMAGEBASEOFF].inited) |
| { |
| if (bfd_link_relocatable (&link_info)) |
| init[IMAGEBASEOFF].value = 0; |
| else if (init[DLLOFF].value) |
| init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE; |
| else |
| init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE; |
| } |
| |
| /* Don't do any symbol assignments if this is a relocatable link. */ |
| if (bfd_link_relocatable (&link_info)) |
| return; |
| |
| /* Glue the assignments into the abs section */ |
| push_stat_ptr (&abs_output_section->children); |
| |
| for (j = 0; init[j].ptr; j++) |
| { |
| long val = init[j].value; |
| lang_add_assignment (exp_assign (init[j].symbol, exp_intop (val), |
| FALSE)); |
| if (init[j].size == sizeof(short)) |
| *(short *)init[j].ptr = val; |
| else if (init[j].size == sizeof(int)) |
| *(int *)init[j].ptr = val; |
| else if (init[j].size == sizeof(long)) |
| *(long *)init[j].ptr = val; |
| /* This might be a long long or other special type. */ |
| else if (init[j].size == sizeof(bfd_vma)) |
| *(bfd_vma *)init[j].ptr = val; |
| else abort(); |
| } |
| /* Restore the pointer. */ |
| pop_stat_ptr (); |
| |
| if (pe.FileAlignment > |
| pe.SectionAlignment) |
| { |
| einfo ("%P: warning, file alignment > section alignment.\n"); |
| } |
| } |
| |
| static void |
| gld_${EMULATION_NAME}_after_open (void) |
| { |
| after_open_default (); |
| |
| /* Pass the wacky PE command line options into the output bfd. |
| FIXME: This should be done via a function, rather than by |
| including an internal BFD header. */ |
| if (!coff_data(link_info.output_bfd)->pe) |
| { |
| einfo ("%F%P: PE operations on non PE file.\n"); |
| } |
| |
| pe_data(link_info.output_bfd)->pe_opthdr = pe; |
| pe_data(link_info.output_bfd)->dll = init[DLLOFF].value; |
| |
| } |
| |
| /* Callback functions for qsort in sort_sections. */ |
| |
| static int |
| sort_by_file_name (const void *a, const void *b) |
| { |
| const lang_statement_union_type *const *ra = a; |
| const lang_statement_union_type *const *rb = b; |
| int i, a_sec, b_sec; |
| |
| i = filename_cmp ((*ra)->input_section.section->owner->my_archive->filename, |
| (*rb)->input_section.section->owner->my_archive->filename); |
| if (i != 0) |
| return i; |
| |
| i = filename_cmp ((*ra)->input_section.section->owner->filename, |
| (*rb)->input_section.section->owner->filename); |
| if (i != 0) |
| return i; |
| /* the tail idata4/5 are the only ones without relocs to an |
| idata$6 section unless we are importing by ordinal, |
| so sort them to last to terminate the IAT |
| and HNT properly. if no reloc this one is import by ordinal |
| so we have to sort by section contents */ |
| |
| if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) ) |
| { |
| i = (((*ra)->input_section.section->reloc_count > |
| (*rb)->input_section.section->reloc_count) ? -1 : 0); |
| if ( i != 0) |
| return i; |
| |
| return (((*ra)->input_section.section->reloc_count > |
| (*rb)->input_section.section->reloc_count) ? 0 : 1); |
| } |
| else |
| { |
| if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) ) |
| return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */ |
| |
| if (! bfd_get_section_contents ((*ra)->input_section.section->owner, |
| (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec))) |
| einfo ("%F%B: Can't read contents of section .idata: %E\n", |
| (*ra)->input_section.section->owner); |
| |
| if (! bfd_get_section_contents ((*rb)->input_section.section->owner, |
| (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) )) |
| einfo ("%F%B: Can't read contents of section .idata: %E\n", |
| (*rb)->input_section.section->owner); |
| |
| i = ((a_sec < b_sec) ? -1 : 0); |
| if ( i != 0) |
| return i; |
| return ((a_sec < b_sec) ? 0 : 1); |
| } |
| return 0; |
| } |
| |
| static int |
| sort_by_section_name (const void *a, const void *b) |
| { |
| const lang_statement_union_type *const *ra = a; |
| const lang_statement_union_type *const *rb = b; |
| int i; |
| i = strcmp ((*ra)->input_section.section->name, |
| (*rb)->input_section.section->name); |
| /* This is a hack to make .stab and .stabstr last, so we don't have |
| to fix strip/objcopy for .reloc sections. |
| FIXME stripping images with a .rsrc section still needs to be fixed. */ |
| if (i != 0) |
| { |
| if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab")) |
| && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab"))) |
| return 1; |
| } |
| return i; |
| } |
| |
| /* Subroutine of sort_sections to a contiguous subset of a list of sections. |
| NEXT_AFTER is the element after the last one to sort. |
| The result is a pointer to the last element's "next" pointer. */ |
| |
| static lang_statement_union_type ** |
| sort_sections_1 (lang_statement_union_type **startptr, |
| lang_statement_union_type *next_after, |
| int count, |
| int (*sort_func) (const void *, const void *)) |
| { |
| lang_statement_union_type **vec; |
| lang_statement_union_type *p; |
| int i; |
| lang_statement_union_type **ret; |
| |
| if (count == 0) |
| return startptr; |
| |
| vec = ((lang_statement_union_type **) |
| xmalloc (count * sizeof (lang_statement_union_type *))); |
| |
| for (p = *startptr, i = 0; i < count; i++, p = p->header.next) |
| vec[i] = p; |
| |
| qsort (vec, count, sizeof (vec[0]), sort_func); |
| |
| /* Fill in the next pointers again. */ |
| *startptr = vec[0]; |
| for (i = 0; i < count - 1; i++) |
| vec[i]->header.next = vec[i + 1]; |
| vec[i]->header.next = next_after; |
| ret = &vec[i]->header.next; |
| free (vec); |
| return ret; |
| } |
| |
| /* Sort the .idata\$foo input sections of archives into filename order. |
| The reason is so dlltool can arrange to have the pe dll import information |
| generated correctly - the head of the list goes into dh.o, the tail into |
| dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the |
| .idata section. |
| FIXME: This may no longer be necessary with grouped sections. Instead of |
| sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use |
| .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t. |
| This would have to be elaborated upon to handle multiple dll's |
| [assuming such an eloboration is possible of course]. |
| |
| We also sort sections in '\$' wild statements. These are created by the |
| place_orphans routine to implement grouped sections. */ |
| |
| static void |
| sort_sections (lang_statement_union_type *s) |
| { |
| for (; s ; s = s->header.next) |
| switch (s->header.type) |
| { |
| case lang_output_section_statement_enum: |
| sort_sections (s->output_section_statement.children.head); |
| break; |
| case lang_wild_statement_enum: |
| { |
| lang_statement_union_type **p = &s->wild_statement.children.head; |
| struct wildcard_list *sec; |
| |
| for (sec = s->wild_statement.section_list; sec; sec = sec->next) |
| { |
| /* Is this the .idata section? */ |
| if (sec->spec.name != NULL |
| && CONST_STRNEQ (sec->spec.name, ".idata")) |
| { |
| /* Sort the children. We want to sort any objects in |
| the same archive. In order to handle the case of |
| including a single archive multiple times, we sort |
| all the children by archive name and then by object |
| name. After sorting them, we re-thread the pointer |
| chain. */ |
| |
| while (*p) |
| { |
| lang_statement_union_type *start = *p; |
| if (start->header.type != lang_input_section_enum |
| || !start->input_section.section->owner->my_archive) |
| p = &(start->header.next); |
| else |
| { |
| lang_statement_union_type *end; |
| int count; |
| |
| for (end = start, count = 0; |
| end && (end->header.type |
| == lang_input_section_enum); |
| end = end->header.next) |
| count++; |
| |
| p = sort_sections_1 (p, end, count, |
| sort_by_file_name); |
| } |
| } |
| break; |
| } |
| |
| /* If this is a collection of grouped sections, sort them. |
| The linker script must explicitly mention "*(.foo\$)" or |
| "*(.foo\$*)". Don't sort them if \$ is not the last |
| character (not sure if this is really useful, but it |
| allows explicitly mentioning some \$ sections and letting |
| the linker handle the rest). */ |
| if (sec->spec.name != NULL) |
| { |
| char *q = strchr (sec->spec.name, '\$'); |
| |
| if (q != NULL |
| && (q[1] == '\0' |
| || (q[1] == '*' && q[2] == '\0'))) |
| { |
| lang_statement_union_type *end; |
| int count; |
| |
| for (end = *p, count = 0; end; end = end->header.next) |
| { |
| if (end->header.type != lang_input_section_enum) |
| abort (); |
| count++; |
| } |
| (void) sort_sections_1 (p, end, count, |
| sort_by_section_name); |
| } |
| break; |
| } |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void |
| gld_${EMULATION_NAME}_before_allocation (void) |
| { |
| #ifdef TARGET_IS_ppcpe |
| /* Here we rummage through the found bfds to collect toc information */ |
| { |
| LANG_FOR_EACH_INPUT_STATEMENT (is) |
| { |
| if (!ppc_process_before_allocation(is->the_bfd, &link_info)) |
| { |
| einfo("Errors encountered processing file %s\n", is->filename); |
| } |
| } |
| } |
| |
| /* We have seen it all. Allocate it, and carry on */ |
| ppc_allocate_toc_section (&link_info); |
| #else |
| #ifdef TARGET_IS_armpe |
| /* FIXME: we should be able to set the size of the interworking stub |
| section. |
| |
| Here we rummage through the found bfds to collect glue |
| information. FIXME: should this be based on a command line |
| option? krk@cygnus.com */ |
| { |
| LANG_FOR_EACH_INPUT_STATEMENT (is) |
| { |
| if (!arm_process_before_allocation (is->the_bfd, & link_info)) |
| { |
| einfo ("Errors encountered processing file %s", is->filename); |
| } |
| } |
| } |
| |
| /* We have seen it all. Allocate it, and carry on */ |
| arm_allocate_interworking_sections (& link_info); |
| #endif /* TARGET_IS_armpe */ |
| #endif /* TARGET_IS_ppcpe */ |
| |
| sort_sections (stat_ptr->head); |
| |
| before_allocation_default (); |
| } |
| |
| /* Place an orphan section. We use this to put sections with a '\$' in them |
| into the right place. Any section with a '\$' in them (e.g. .text\$foo) |
| gets mapped to the output section with everything from the '\$' on stripped |
| (e.g. .text). |
| See the Microsoft Portable Executable and Common Object File Format |
| Specification 4.1, section 4.2, Grouped Sections. |
| |
| FIXME: This is now handled by the linker script using wildcards, |
| but I'm leaving this here in case we want to enable it for sections |
| which are not mentioned in the linker script. */ |
| |
| static lang_output_section_statement_type * |
| gld${EMULATION_NAME}_place_orphan (asection *s, |
| const char *secname, |
| int constraint) |
| { |
| char *output_secname, *ps; |
| lang_output_section_statement_type *os; |
| lang_statement_union_type *l; |
| |
| if ((s->flags & SEC_ALLOC) == 0) |
| return NULL; |
| |
| /* Don't process grouped sections unless doing a final link. |
| If they're marked as COMDAT sections, we don't want .text\$foo to |
| end up in .text and then have .text disappear because it's marked |
| link-once-discard. */ |
| if (bfd_link_relocatable (&link_info)) |
| return NULL; |
| |
| /* Everything from the '\$' on gets deleted so don't allow '\$' as the |
| first character. */ |
| if (*secname == '\$') |
| einfo ("%P%F: section %s has '\$' as first character\n", secname); |
| if (strchr (secname + 1, '\$') == NULL) |
| return NULL; |
| |
| /* Look up the output section. The Microsoft specs say sections names in |
| image files never contain a '\$'. Fortunately, lang_..._lookup creates |
| the section if it doesn't exist. */ |
| output_secname = xstrdup (secname); |
| ps = strchr (output_secname + 1, '\$'); |
| *ps = 0; |
| os = lang_output_section_statement_lookup (output_secname, constraint, TRUE); |
| |
| /* Find the '\$' wild statement for this section. We currently require the |
| linker script to explicitly mention "*(.foo\$)". |
| FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the |
| Microsoft docs this isn't correct so it's not (currently) handled. */ |
| |
| ps[0] = '\$'; |
| ps[1] = 0; |
| for (l = os->children.head; l; l = l->header.next) |
| if (l->header.type == lang_wild_statement_enum) |
| { |
| struct wildcard_list *sec; |
| |
| for (sec = l->wild_statement.section_list; sec; sec = sec->next) |
| if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0) |
| break; |
| if (sec) |
| break; |
| } |
| ps[0] = 0; |
| if (l == NULL) |
| einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname); |
| |
| /* Link the input section in and we're done for now. |
| The sections still have to be sorted, but that has to wait until |
| all such sections have been processed by us. The sorting is done by |
| sort_sections. */ |
| lang_add_section (&l->wild_statement.children, s, NULL, os); |
| |
| return os; |
| } |
| |
| static char * |
| gld_${EMULATION_NAME}_get_script (int *isfile) |
| EOF |
| # Scripts compiled in. |
| # sed commands to quote an ld script as a C string. |
| sc="-f stringify.sed" |
| |
| fragment <<EOF |
| { |
| *isfile = 0; |
| |
| if (bfd_link_relocatable (&link_info) && config.build_constructors) |
| return |
| EOF |
| sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
| echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${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 |
| |
| fragment <<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}", |
| "${OUTPUT_FORMAT}", |
| finish_default, |
| NULL, /* create output section statements */ |
| NULL, /* open dynamic archive */ |
| gld${EMULATION_NAME}_place_orphan, |
| gld_${EMULATION_NAME}_set_symbols, |
| NULL, /* parse_args */ |
| gld${EMULATION_NAME}_add_options, |
| gld${EMULATION_NAME}_handle_option, |
| NULL, /* unrecognized file */ |
| NULL, /* list options */ |
| NULL, /* recognized file */ |
| NULL, /* find_potential_libraries */ |
| NULL, /* new_vers_pattern */ |
| NULL /* extra_map_file_text */ |
| }; |
| EOF |