X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fldemul.c;h=fa6dfdd18edfb199d4807d2766d02135272881b2;hb=02eba61aa6cad683e96cf13f483adc04982c0c2b;hp=826129d0a150fec121a64da8e0c6fe7d8213434c;hpb=c2edb4b89e374c7bca0c929dbab444928520a182;p=deliverable%2Fbinutils-gdb.git

diff --git a/ld/ldemul.c b/ld/ldemul.c
index 826129d0a1..fa6dfdd18e 100644
--- a/ld/ldemul.c
+++ b/ld/ldemul.c
@@ -1,7 +1,5 @@
 /* ldemul.c -- clearing house for ld emulation states
-   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-   2001, 2002, 2003, 2005, 2007, 2008
-   Free Software Foundation, Inc.
+   Copyright (C) 1991-2020 Free Software Foundation, Inc.
 
    This file is part of the GNU Binutils.
 
@@ -24,6 +22,7 @@
 #include "bfd.h"
 #include "getopt.h"
 #include "bfdlink.h"
+#include "ctf-api.h"
 
 #include "ld.h"
 #include "ldmisc.h"
@@ -66,6 +65,18 @@ ldemul_after_open (void)
   ld_emulation->after_open ();
 }
 
+void
+ldemul_after_check_relocs (void)
+{
+  ld_emulation->after_check_relocs ();
+}
+
+void
+ldemul_before_place_orphans (void)
+{
+  ld_emulation->before_place_orphans ();
+}
+
 void
 ldemul_after_allocation (void)
 {
@@ -192,32 +203,97 @@ ldemul_default_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
   return ld_emulation->target_name;
 }
 
+/* If the entry point was not specified as an address, then add the
+   symbol as undefined.  This will cause ld to extract an archive
+   element defining the entry if ld is linking against such an archive.
+
+   We don't do this when generating shared libraries unless given -e
+   on the command line, because most shared libs are not designed to
+   be run as an executable.  However, some are, eg. glibc ld.so and
+   may rely on the default linker script supplying ENTRY.  So we can't
+   remove the ENTRY from the script, but would rather not insert
+   undefined _start syms.  */
+
 void
 after_parse_default (void)
 {
+  if (entry_symbol.name != NULL
+      && (bfd_link_executable (&link_info) || entry_from_cmdline))
+    {
+      bfd_boolean is_vma = FALSE;
+
+      if (entry_from_cmdline)
+	{
+	  const char *send;
+
+	  bfd_scan_vma (entry_symbol.name, &send, 0);
+	  is_vma = *send == '\0';
+	}
+      if (!is_vma)
+	ldlang_add_undef (entry_symbol.name, entry_from_cmdline);
+    }
+  if (config.maxpagesize == 0)
+    config.maxpagesize = bfd_emul_get_maxpagesize (default_target);
+  if (config.commonpagesize == 0)
+    config.commonpagesize = bfd_emul_get_commonpagesize (default_target,
+							 link_info.relro);
 }
 
 void
 after_open_default (void)
+{
+  link_info.big_endian = TRUE;
+
+  if (bfd_big_endian (link_info.output_bfd))
+    ;
+  else if (bfd_little_endian (link_info.output_bfd))
+    link_info.big_endian = FALSE;
+  else
+    {
+      if (command_line.endian == ENDIAN_BIG)
+	;
+      else if (command_line.endian == ENDIAN_LITTLE)
+	link_info.big_endian = FALSE;
+      else if (command_line.endian == ENDIAN_UNSET)
+	{
+	  LANG_FOR_EACH_INPUT_STATEMENT (s)
+	    if (s->the_bfd != NULL)
+	      {
+		if (bfd_little_endian (s->the_bfd))
+		  link_info.big_endian = FALSE;
+		break;
+	      }
+	}
+    }
+}
+
+void
+after_check_relocs_default (void)
+{
+}
+
+void
+before_place_orphans_default (void)
 {
 }
 
 void
 after_allocation_default (void)
 {
+  lang_relax_sections (FALSE);
 }
 
 void
 before_allocation_default (void)
 {
-  if (!link_info.relocatable)
+  if (!bfd_link_relocatable (&link_info))
     strip_excluded_output_sections ();
 }
 
 void
 finish_default (void)
 {
-  if (!link_info.relocatable)
+  if (!bfd_link_relocatable (&link_info))
     _bfd_fix_excluded_sec_syms (link_info.output_bfd, &link_info);
 }
 
@@ -227,18 +303,21 @@ set_output_arch_default (void)
   /* Set the output architecture and machine if possible.  */
   bfd_set_arch_mach (link_info.output_bfd,
 		     ldfile_output_architecture, ldfile_output_machine);
+
+  bfd_emul_set_maxpagesize (output_target, config.maxpagesize);
+  bfd_emul_set_commonpagesize (output_target, config.commonpagesize);
 }
 
 void
 syslib_default (char *ignore ATTRIBUTE_UNUSED)
 {
-  info_msg (_("%S SYSLIB ignored\n"));
+  info_msg (_("%pS SYSLIB ignored\n"), NULL);
 }
 
 void
 hll_default (char *ignore ATTRIBUTE_UNUSED)
 {
-  info_msg (_("%S HLL ignored\n"));
+  info_msg (_("%pS HLL ignored\n"), NULL);
 }
 
 ld_emulation_xfer_type *ld_emulations[] = { EMULATION_LIST };
@@ -300,7 +379,7 @@ ldemul_list_emulation_options (FILE *f)
 	}
     }
 
-  if (! options_found)
+  if (!options_found)
     fprintf (f, _("  no emulation specific options.\n"));
 }
 
@@ -320,3 +399,32 @@ ldemul_new_vers_pattern (struct bfd_elf_version_expr *entry)
     entry = (*ld_emulation->new_vers_pattern) (entry);
   return entry;
 }
+
+void
+ldemul_extra_map_file_text (bfd *abfd, struct bfd_link_info *info, FILE *mapf)
+{
+  if (ld_emulation->extra_map_file_text)
+    ld_emulation->extra_map_file_text (abfd, info, mapf);
+}
+
+int
+ldemul_emit_ctf_early (void)
+{
+  if (ld_emulation->emit_ctf_early)
+    return ld_emulation->emit_ctf_early ();
+  /* If the emulation doesn't know if it wants to emit CTF early, it is going
+     to do so.  */
+  return 1;
+}
+
+void
+ldemul_examine_strtab_for_ctf (struct ctf_file *ctf_output,
+			       struct elf_sym_strtab *syms,
+			       bfd_size_type symcount,
+			       struct elf_strtab_hash *symstrtab)
+
+{
+  if (ld_emulation->examine_strtab_for_ctf)
+    ld_emulation->examine_strtab_for_ctf (ctf_output, syms,
+					  symcount, symstrtab);
+}