# This shell script emits a C file. -*- C -*-
-# Copyright 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
+# Copyright (C) 2006-2020 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# MA 02110-1301, USA.
-# This file is sourced from elf32.em, and defines extra avr-elf specific
+# This file is sourced from elf.em, and defines extra avr-elf specific
# routines. It is used to generate the trampolines for the avr6 family
# of devices where one needs to address the issue that it is not possible
# to reach the whole program memory by using 16 bit pointers.
#include "elf32-avr.h"
#include "ldctor.h"
+#include "elf/avr.h"
/* The fake file and it's corresponding section meant to hold
the linker stubs if needed. */
static lang_input_statement_type *stub_file;
static asection *avr_stub_section;
-/* Variables set by the command-line parameters and transfered
+/* Variables set by the command-line parameters and transferred
to the bfd without use of global shared variables. */
static bfd_boolean avr_no_stubs = FALSE;
avr_elf_set_global_bfd_parameters (void)
{
elf32_avr_setup_params (& link_info,
- stub_file->the_bfd,
- avr_stub_section,
- avr_no_stubs,
- avr_debug_stubs,
- avr_debug_relax,
- avr_pc_wrap_around,
- avr_replace_call_ret_sequences);
+ stub_file->the_bfd,
+ avr_stub_section,
+ avr_no_stubs,
+ avr_debug_stubs,
+ avr_debug_relax,
+ avr_pc_wrap_around,
+ avr_replace_call_ret_sequences);
}
gld${EMULATION_NAME}_before_allocation ();
- /* We only need stubs for the avr6 family. */
- if (strcmp ("${EMULATION_NAME}","avr6"))
+ if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
+ {
+ avr_no_stubs = TRUE;
+ return;
+ }
+
+ /* We only need stubs for avr6, avrxmega6, and avrxmega7. */
+ if (strcmp ("${EMULATION_NAME}", "avr6") != 0
+ && strcmp ("${EMULATION_NAME}", "avrxmega6") != 0
+ && strcmp ("${EMULATION_NAME}", "avrxmega7") != 0)
avr_no_stubs = TRUE;
avr_elf_set_global_bfd_parameters ();
/* If generating a relocatable output file, then
we don't have to generate the trampolines. */
- if (link_info.relocatable)
+ if (bfd_link_relocatable (&link_info))
avr_no_stubs = TRUE;
if (avr_no_stubs)
ret = elf32_avr_setup_section_lists (link_info.output_bfd, &link_info);
if (ret < 0)
- einfo ("%X%P: can not setup the input section list: %E\n");
+ einfo (_("%X%P: can not setup the input section list: %E\n"));
if (ret <= 0)
return;
/* Call into the BFD backend to do the real "stub"-work. */
if (! elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
- einfo ("%X%P: can not size stub section: %E\n");
+ einfo (_("%X%P: can not size stub section: %E\n"));
}
/* This is called before the input files are opened. We create a new
{
flagword flags;
+ if (bfd_get_flavour (link_info.output_bfd) != bfd_target_elf_flavour)
+ {
+ einfo (_("%F%P: error: cannot change output format "
+ "whilst linking %s binaries\n"), "AVR");
+ return;
+ }
+
stub_file = lang_add_input_file ("linker stubs",
- lang_input_file_is_fake_enum,
- NULL);
+ lang_input_file_is_fake_enum,
+ NULL);
stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd);
if (stub_file->the_bfd == NULL
|| !bfd_set_arch_mach (stub_file->the_bfd,
- bfd_get_arch (link_info.output_bfd),
- bfd_get_mach (link_info.output_bfd)))
+ bfd_get_arch (link_info.output_bfd),
+ bfd_get_mach (link_info.output_bfd)))
{
- einfo ("%X%P: can not create stub BFD %E\n");
+ einfo (_("%X%P: can not create stub BFD: %E\n"));
return;
}
/* Now we add the stub section. */
flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
- | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
+ | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP);
avr_stub_section = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
".trampolines",
flags);
return;
- err_ret:
- einfo ("%X%P: can not make stub section: %E\n");
- return;
+ err_ret:
+ einfo (_("%X%P: can not make stub section: %E\n"));
+ return;
}
/* Re-calculates the size of the stubs so that we won't waste space. */
{
/* If relaxing, elf32_avr_size_stubs will be called from
elf32_avr_relax_section. */
- if (!elf32_avr_size_stubs (link_info.output_bfd, &link_info, FALSE))
- einfo ("%X%P: can not size stub section: %E\n");
+ if (!elf32_avr_size_stubs (link_info.output_bfd, &link_info, TRUE))
+ einfo (_("%X%P: can not size stub section: %E\n"));
}
gld${EMULATION_NAME}_after_allocation ();
if (!avr_no_stubs)
{
if (!elf32_avr_build_stubs (&link_info))
- einfo ("%X%P: can not build stubs: %E\n");
+ einfo (_("%X%P: can not build stubs: %E\n"));
}
}
+static void
+avr_elf_before_parse (void)
+{
+ /* Don't create a demand-paged executable, since this feature isn't
+ meaningful in AVR. */
+ config.magic_demand_paged = FALSE;
+
+ gld${EMULATION_NAME}_before_parse ();
+}
+static void
+avr_finish (void)
+{
+ bfd *abfd;
+ bfd_boolean avr_link_relax;
+
+ if (bfd_link_relocatable (&link_info))
+ {
+ avr_link_relax = TRUE;
+ for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next)
+ {
+ /* Don't let the linker stubs prevent the final object being
+ marked as link-relax ready. */
+ if ((elf_elfheader (abfd)->e_flags
+ & EF_AVR_LINKRELAX_PREPARED) == 0
+ && abfd != stub_file->the_bfd)
+ {
+ avr_link_relax = FALSE;
+ break;
+ }
+ }
+ }
+ else
+ {
+ avr_link_relax = RELAXATION_ENABLED;
+ }
+
+ abfd = link_info.output_bfd;
+
+ if (bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour)
+ {
+ if (avr_link_relax)
+ elf_elfheader (abfd)->e_flags |= EF_AVR_LINKRELAX_PREPARED;
+ else
+ elf_elfheader (abfd)->e_flags &= ~EF_AVR_LINKRELAX_PREPARED;
+ }
+
+ finish_default ();
+}
EOF
PARSE_AND_LIST_PROLOGUE='
#define OPTION_NO_CALL_RET_REPLACEMENT 301
-#define OPTION_PMEM_WRAP_AROUND 302
-#define OPTION_NO_STUBS 303
-#define OPTION_DEBUG_STUBS 304
-#define OPTION_DEBUG_RELAX 305
+#define OPTION_PMEM_WRAP_AROUND 302
+#define OPTION_NO_STUBS 303
+#define OPTION_DEBUG_STUBS 304
+#define OPTION_DEBUG_RELAX 305
'
PARSE_AND_LIST_LONGOPTS='
{ "no-call-ret-replacement", no_argument,
- NULL, OPTION_NO_CALL_RET_REPLACEMENT},
+ NULL, OPTION_NO_CALL_RET_REPLACEMENT},
{ "pmem-wrap-around", required_argument,
NULL, OPTION_PMEM_WRAP_AROUND},
{ "no-stubs", no_argument,
fprintf (file, _(" --pmem-wrap-around=<val> "
"Make the linker relaxation machine assume that a\n"
" "
- " program counter wrap-around occures at address\n"
+ " program counter wrap-around occurs at address\n"
" "
" <val>. Supported values: 8k, 16k, 32k and 64k.\n"));
fprintf (file, _(" --no-call-ret-replacement "
case OPTION_PMEM_WRAP_AROUND:
{
- /* This variable is defined in the bfd library. */
- if ((!strcmp (optarg,"32k")) || (!strcmp (optarg,"32K")))
- avr_pc_wrap_around = 32768;
- else if ((!strcmp (optarg,"8k")) || (!strcmp (optarg,"8K")))
- avr_pc_wrap_around = 8192;
- else if ((!strcmp (optarg,"16k")) || (!strcmp (optarg,"16K")))
- avr_pc_wrap_around = 16384;
- else if ((!strcmp (optarg,"64k")) || (!strcmp (optarg,"64K")))
- avr_pc_wrap_around = 0x10000;
- else
- return FALSE;
+ /* This variable is defined in the bfd library. */
+ if ((!strcmp (optarg,"32k")) || (!strcmp (optarg,"32K")))
+ avr_pc_wrap_around = 32768;
+ else if ((!strcmp (optarg,"8k")) || (!strcmp (optarg,"8K")))
+ avr_pc_wrap_around = 8192;
+ else if ((!strcmp (optarg,"16k")) || (!strcmp (optarg,"16K")))
+ avr_pc_wrap_around = 16384;
+ else if ((!strcmp (optarg,"64k")) || (!strcmp (optarg,"64K")))
+ avr_pc_wrap_around = 0x10000;
+ else
+ return FALSE;
}
break;
case OPTION_NO_CALL_RET_REPLACEMENT:
{
- /* This variable is defined in the bfd library. */
- avr_replace_call_ret_sequences = FALSE;
+ /* This variable is defined in the bfd library. */
+ avr_replace_call_ret_sequences = FALSE;
}
break;
'
#
# Put these extra avr-elf routines in ld_${EMULATION_NAME}_emulation
#
+LDEMUL_BEFORE_PARSE=avr_elf_before_parse
LDEMUL_BEFORE_ALLOCATION=avr_elf_${EMULATION_NAME}_before_allocation
LDEMUL_AFTER_ALLOCATION=avr_elf_after_allocation
LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=avr_elf_create_output_section_statements
+LDEMUL_FINISH=avr_finish
projects / deliverable / binutils-gdb.git / blobdiff