# This shell script emits a C file. -*- C -*-
-# Copyright 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
+# Copyright (C) 2004-2021 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
+case ${target} in
+ *-*-*gnu*)
+ gnu_target=true
+ ;;
+ *)
+ gnu_target=false
+ ;;
+esac
+
fragment <<EOF
#include "ldctor.h"
static lang_input_statement_type *stub_file;
static bfd *stub_bfd;
-static void
-mips_after_parse (void)
-{
- /* .gnu.hash and the MIPS ABI require .dynsym to be sorted in different
- ways. .gnu.hash needs symbols to be grouped by hash code whereas the
- MIPS ABI requires a mapping between the GOT and the symbol table. */
- if (link_info.emit_gnu_hash)
- {
- einfo ("%X%P: .gnu.hash is incompatible with the MIPS ABI\n");
- link_info.emit_hash = TRUE;
- link_info.emit_gnu_hash = FALSE;
- }
- after_parse_default ();
-}
+static bool insn32;
+static bool ignore_branch_isa;
+static bool compact_branches;
struct hook_stub_info
{
/* Traverse the linker tree to find the spot where the stub goes. */
-static bfd_boolean
+static bool
hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp)
{
lang_statement_union_type *l;
- bfd_boolean ret;
+ bool ret;
for (; (l = *lp) != NULL; lp = &l->header.next)
{
before its associated input section. */
*lp = info->add.head;
*(info->add.tail) = l;
- return TRUE;
+ return true;
}
break;
break;
}
}
- return FALSE;
+ return false;
}
/* Create a new stub section called STUB_SEC_NAME and arrange for it to
{
asection *stub_sec;
flagword flags;
- const char *secname;
lang_output_section_statement_type *os;
struct hook_stub_info info;
bfd_get_arch (link_info.output_bfd),
bfd_get_mach (link_info.output_bfd)))
{
- einfo ("%F%P: can not create BFD %E\n");
+ einfo (_("%F%P: can not create BFD: %E\n"));
return NULL;
}
stub_bfd->flags |= BFD_LINKER_CREATED;
/* Set the flags. */
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
| SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP);
- if (!bfd_set_section_flags (stub_bfd, stub_sec, flags))
+ if (!bfd_set_section_flags (stub_sec, flags))
goto err_ret;
- /* Create an output section statement. */
- secname = bfd_get_section_name (output_section->owner, output_section);
- os = lang_output_section_find (secname);
+ os = lang_output_section_get (output_section);
/* Initialize a statement list that contains only the new statement. */
lang_list_init (&info.add);
- lang_add_section (&info.add, stub_sec, os);
+ lang_add_section (&info.add, stub_sec, NULL, NULL, os);
if (info.add.head == NULL)
goto err_ret;
return stub_sec;
err_ret:
- einfo ("%X%P: can not make stub section: %E\n");
+ einfo (_("%X%P: can not make stub section: %E\n"));
return NULL;
}
static void
mips_create_output_section_statements (void)
{
+ struct elf_link_hash_table *htab;
+
+ htab = elf_hash_table (&link_info);
+ if (is_elf_hash_table (htab) && is_mips_elf (link_info.output_bfd))
+ _bfd_mips_elf_linker_flags (&link_info, insn32, ignore_branch_isa,
+ ${gnu_target});
+
if (is_mips_elf (link_info.output_bfd))
- _bfd_mips_elf_init_stubs (&link_info, mips_add_stub_section);
+ {
+ _bfd_mips_elf_compact_branches (&link_info, compact_branches);
+ _bfd_mips_elf_init_stubs (&link_info, mips_add_stub_section);
+ }
}
/* This is called after we have merged the private data of the input bfds. */
static void
mips_before_allocation (void)
{
- flagword flags;
+ if (is_mips_elf (link_info.output_bfd))
+ {
+ flagword flags;
- flags = elf_elfheader (link_info.output_bfd)->e_flags;
- if (!link_info.shared
- && !link_info.nocopyreloc
- && (flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) == EF_MIPS_CPIC)
- _bfd_mips_elf_use_plts_and_copy_relocs (&link_info);
+ flags = elf_elfheader (link_info.output_bfd)->e_flags;
+ if (!bfd_link_pic (&link_info)
+ && !link_info.nocopyreloc
+ && (flags & (EF_MIPS_PIC | EF_MIPS_CPIC)) == EF_MIPS_CPIC)
+ _bfd_mips_elf_use_plts_and_copy_relocs (&link_info);
+ }
gld${EMULATION_NAME}_before_allocation ();
}
-/* Avoid processing the fake stub_file in vercheck, stat_needed and
- check_needed routines. */
-
-static void (*real_func) (lang_input_statement_type *);
-
-static void mips_for_each_input_file_wrapper (lang_input_statement_type *l)
-{
- if (l != stub_file)
- (*real_func) (l);
-}
-
-static void
-mips_lang_for_each_input_file (void (*func) (lang_input_statement_type *))
-{
- real_func = func;
- lang_for_each_input_file (&mips_for_each_input_file_wrapper);
-}
-
-#define lang_for_each_input_file mips_lang_for_each_input_file
-
EOF
-LDEMUL_AFTER_PARSE=mips_after_parse
+# Define some shell vars to insert bits of code into the standard elf
+# parse_args and list_options functions.
+#
+PARSE_AND_LIST_PROLOGUE='
+enum
+ {
+ OPTION_INSN32 = 301,
+ OPTION_NO_INSN32,
+ OPTION_IGNORE_BRANCH_ISA,
+ OPTION_NO_IGNORE_BRANCH_ISA,
+ OPTION_COMPACT_BRANCHES,
+ OPTION_NO_COMPACT_BRANCHES
+ };
+'
+
+PARSE_AND_LIST_LONGOPTS='
+ { "insn32", no_argument, NULL, OPTION_INSN32 },
+ { "no-insn32", no_argument, NULL, OPTION_NO_INSN32 },
+ { "ignore-branch-isa", no_argument, NULL, OPTION_IGNORE_BRANCH_ISA },
+ { "no-ignore-branch-isa", no_argument, NULL, OPTION_NO_IGNORE_BRANCH_ISA },
+ { "compact-branches", no_argument, NULL, OPTION_COMPACT_BRANCHES },
+ { "no-compact-branches", no_argument, NULL, OPTION_NO_COMPACT_BRANCHES },
+'
+
+PARSE_AND_LIST_OPTIONS='
+ fprintf (file, _("\
+ --insn32 Only generate 32-bit microMIPS instructions\n"
+ ));
+ fprintf (file, _("\
+ --no-insn32 Generate all microMIPS instructions\n"
+ ));
+ fprintf (file, _("\
+ --ignore-branch-isa Accept invalid branch relocations requiring\n\
+ an ISA mode switch\n"
+ ));
+ fprintf (file, _("\
+ --no-ignore-branch-isa Reject invalid branch relocations requiring\n\
+ an ISA mode switch\n"
+ ));
+ fprintf (file, _("\
+ --compact-branches Generate compact branches/jumps for MIPS R6\n"
+ ));
+ fprintf (file, _("\
+ --no-compact-branches Generate delay slot branches/jumps for MIPS R6\n"
+ ));
+'
+
+PARSE_AND_LIST_ARGS_CASES='
+ case OPTION_INSN32:
+ insn32 = true;
+ break;
+
+ case OPTION_NO_INSN32:
+ insn32 = false;
+ break;
+
+ case OPTION_IGNORE_BRANCH_ISA:
+ ignore_branch_isa = true;
+ break;
+
+ case OPTION_NO_IGNORE_BRANCH_ISA:
+ ignore_branch_isa = false;
+ break;
+
+ case OPTION_COMPACT_BRANCHES:
+ compact_branches = true;
+ break;
+
+ case OPTION_NO_COMPACT_BRANCHES:
+ compact_branches = false;
+ break;
+'
+
LDEMUL_BEFORE_ALLOCATION=mips_before_allocation
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=mips_create_output_section_statements
projects / binutils.git / blobdiff