diff options
Diffstat (limited to 'contrib/binutils/ld/emultempl/elf32.em')
-rw-r--r-- | contrib/binutils/ld/emultempl/elf32.em | 103 |
1 files changed, 58 insertions, 45 deletions
diff --git a/contrib/binutils/ld/emultempl/elf32.em b/contrib/binutils/ld/emultempl/elf32.em index ad0935a..e803cbf 100644 --- a/contrib/binutils/ld/emultempl/elf32.em +++ b/contrib/binutils/ld/emultempl/elf32.em @@ -52,7 +52,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ldlang.h" #include "ldfile.h" #include "ldemul.h" -#include "ldgram.h" +#include <ldgram.h> #include "elf/common.h" static void gld${EMULATION_NAME}_before_parse @@ -78,7 +78,7 @@ static void gld${EMULATION_NAME}_before_allocation static boolean gld${EMULATION_NAME}_open_dynamic_archive PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); static lang_output_section_statement_type *output_rel_find - PARAMS ((void)); + PARAMS ((asection *)); static asection *output_prev_sec_find PARAMS ((lang_output_section_statement_type *)); static boolean gld${EMULATION_NAME}_place_orphan @@ -1067,24 +1067,46 @@ cat >>e${EMULATION_NAME}.c <<EOF /* A variant of lang_output_section_find. Used by place_orphan. */ static lang_output_section_statement_type * -output_rel_find () +output_rel_find (sec) + asection *sec; { lang_statement_union_type *u; lang_output_section_statement_type *lookup; + lang_output_section_statement_type *last = NULL; + lang_output_section_statement_type *last_rel = NULL; + lang_output_section_statement_type *last_rel_alloc = NULL; + int rela = sec->name[4] == 'a'; - for (u = lang_output_section_statement.head; - u != (lang_statement_union_type *) NULL; - u = lookup->next) + for (u = lang_output_section_statement.head; u; u = lookup->next) { lookup = &u->output_section_statement; - if (strncmp (".rel", lookup->name, 4) == 0 - && lookup->bfd_section != NULL - && (lookup->bfd_section->flags & SEC_ALLOC) != 0) + if (strncmp (".rel", lookup->name, 4) == 0) { - return lookup; + /* Don't place after .rel.plt as doing so results in wrong + dynamic tags. Also, place allocated reloc sections before + non-allocated. */ + int lookrela = lookup->name[4] == 'a'; + + if (strcmp (".plt", lookup->name + 4 + lookrela) == 0 + || (lookup->bfd_section != NULL + && (lookup->bfd_section->flags & SEC_ALLOC) == 0)) + break; + last = lookup; + if (rela == lookrela) + last_rel = lookup; + if (lookup->bfd_section != NULL + && (lookup->bfd_section->flags & SEC_ALLOC) != 0) + last_rel_alloc = lookup; } } - return (lang_output_section_statement_type *) NULL; + + if (last_rel_alloc) + return last_rel_alloc; + + if (last_rel) + return last_rel; + + return last; } /* Find the last output section before given output statement. @@ -1140,13 +1162,24 @@ gld${EMULATION_NAME}_place_orphan (file, s) lang_statement_list_type add; etree_type *address; const char *secname; - const char *outsecname; const char *ps = NULL; lang_output_section_statement_type *os; + int isdyn = 0; secname = bfd_get_section_name (s->owner, s); + if (! link_info.relocateable + && link_info.combreloc + && (s->flags & SEC_ALLOC) + && strncmp (secname, ".rel", 4) == 0) + { + if (secname[4] == 'a') + secname = ".rela.dyn"; + else + secname = ".rel.dyn"; + isdyn = 1; + } - if (! config.unique_orphan_sections && ! unique_section_p (secname)) + if (isdyn || (!config.unique_orphan_sections && !unique_section_p (secname))) { /* Look through the script to see where to place this section. */ os = lang_output_section_find (secname); @@ -1209,27 +1242,10 @@ gld${EMULATION_NAME}_place_orphan (file, s) && HAVE_SECTION (hold_data, ".data")) place = &hold_data; else if (strncmp (secname, ".rel", 4) == 0 + && (s->flags & SEC_LOAD) != 0 && (hold_rel.os != NULL - || (hold_rel.os = output_rel_find ()) != NULL)) - { - if (! link_info.relocateable && link_info.combreloc) - { - if (strncmp (secname, ".rela", 5) == 0) - os = lang_output_section_find (".rela.dyn"); - else - os = lang_output_section_find (".rel.dyn"); - - if (os != NULL - && os->bfd_section != NULL - && ((s->flags ^ os->bfd_section->flags) - & (SEC_LOAD | SEC_ALLOC)) == 0) - { - lang_add_section (&os->children, s, os, file); - return true; - } - } - place = &hold_rel; - } + || (hold_rel.os = output_rel_find (s)) != NULL)) + place = &hold_rel; else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY && HAVE_SECTION (hold_rodata, ".rodata")) place = &hold_rodata; @@ -1242,13 +1258,10 @@ gld${EMULATION_NAME}_place_orphan (file, s) /* Choose a unique name for the section. This will be needed if the same section name appears in the input file with different loadable or allocatable characteristics. */ - outsecname = secname; - if (bfd_get_section_by_name (output_bfd, outsecname) != NULL) + if (bfd_get_section_by_name (output_bfd, secname) != NULL) { - outsecname = bfd_get_unique_section_name (output_bfd, - outsecname, - &count); - if (outsecname == NULL) + secname = bfd_get_unique_section_name (output_bfd, secname, &count); + if (secname == NULL) einfo ("%F%P: place_orphan failed: %E\n"); } @@ -1269,7 +1282,7 @@ gld${EMULATION_NAME}_place_orphan (file, s) { /* If the name of the section is representable in C, then create symbols to mark the start and the end of the section. */ - for (ps = outsecname; *ps != '\0'; ps++) + for (ps = secname; *ps != '\0'; ps++) if (! ISALNUM (*ps) && *ps != '_') break; if (*ps == '\0') @@ -1277,8 +1290,8 @@ gld${EMULATION_NAME}_place_orphan (file, s) char *symname; etree_type *e_align; - symname = (char *) xmalloc (ps - outsecname + sizeof "__start_"); - sprintf (symname, "__start_%s", outsecname); + symname = (char *) xmalloc (ps - secname + sizeof "__start_"); + sprintf (symname, "__start_%s", secname); e_align = exp_unop (ALIGN_K, exp_intop ((bfd_vma) 1 << s->alignment_power)); lang_add_assignment (exp_assop ('=', symname, e_align)); @@ -1290,7 +1303,7 @@ gld${EMULATION_NAME}_place_orphan (file, s) else address = NULL; - os = lang_enter_output_section_statement (outsecname, address, 0, + os = lang_enter_output_section_statement (secname, address, 0, (bfd_vma) 0, (etree_type *) NULL, (etree_type *) NULL, @@ -1311,8 +1324,8 @@ gld${EMULATION_NAME}_place_orphan (file, s) if (place != NULL) stat_ptr = &add; - symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_"); - sprintf (symname, "__stop_%s", outsecname); + symname = (char *) xmalloc (ps - secname + sizeof "__stop_"); + sprintf (symname, "__stop_%s", secname); lang_add_assignment (exp_assop ('=', symname, exp_nameop (NAME, "."))); } |