--- /dev/null
+# This shell script emits a C file. -*- C -*-
+# Copyright 2023 Free Software Foundation, Inc.
+#
+# This file is part of GLD, the Gnu Linker.
+#
+# 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 2 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.
+#
+
+# This file is sourced from elf.em, and defines extra Neutrino
+# specific routines.
+
+# NTO templates aims to refine the default ${ARCH}elf.em template.
+. "${srcdir}/emultempl/${ARCH}elf.em"
+
+cat >>e${EMULATION_NAME}.c <<EOF
+
+#include "elf/internal.h"
+#include "elf/common.h"
+#include "elf-bfd.h"
+#include "../bfd/libbfd.h"
+
+bool nto_lazy_stack = false;
+struct nto_stack_note
+{
+ unsigned char stacksize[4];
+ unsigned char stackalloc[4];
+ unsigned char execstack[4];
+};
+
+/* Generate the QNT_STACK .note section. */
+static void
+nto_add_note_section (void) {
+ asection *note_sec;
+ flagword flags;
+ Elf_External_Note *e_note;
+ bfd_size_type size, h_size;
+ struct nto_stack_note *n_note;
+
+ /* Don't create a note if the stack size isn't provided. */
+ if (link_info.stacksize <= 0)
+ return;
+
+ /* As ${ARCH}elf.em is imported and ${ARCH}_elf_create_output_section_statements
+ is called before this function, stub_file should already be defined. */
+ if (!stub_file)
+ {
+ einfo (_("%F%P: cannot create .note section in stub BFD.\n"));
+ return;
+ }
+
+ if (nto_lazy_stack && !link_info.stacksize)
+ {
+ einfo (_("%F%P: error: --lazy-stack must follow -zstack-size=<size>\n"));
+ return;
+ }
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY | SEC_LINKER_CREATED);
+ note_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, ".note", flags);
+ if (! note_sec)
+ {
+ einfo (_("%F%P: failed to create .note section\n"));
+ return;
+ }
+
+ size = offsetof (Elf_External_Note, name[sizeof "QNX"]);
+ size = (size + 3) & -(bfd_size_type) 4;
+ h_size = size;
+ size += sizeof (struct nto_stack_note);
+ note_sec->size = size;
+
+ elf_section_type (note_sec) = SHT_NOTE;
+ note_sec->contents = xmalloc (note_sec->size);
+ e_note = (Elf_External_Note *) note_sec->contents;
+ bfd_h_put_32 (stub_file->the_bfd, sizeof "QNX", &e_note->namesz);
+ bfd_h_put_32 (stub_file->the_bfd, sizeof (struct nto_stack_note), &e_note->descsz);
+ bfd_h_put_32 (stub_file->the_bfd, QNT_STACK, &e_note->type);
+ memcpy (e_note->name, "QNX", sizeof "QNX");
+
+
+ /* Generate .note content.*/
+ n_note = (struct nto_stack_note *) (note_sec->contents + h_size);
+ bfd_h_put_32 (stub_file->the_bfd, link_info.stacksize, &n_note->stacksize);
+
+ if (nto_lazy_stack)
+ bfd_h_put_32 (stub_file->the_bfd, 4096, &n_note->stackalloc);
+ else
+ bfd_h_put_32 (stub_file->the_bfd, link_info.stacksize, &n_note->stackalloc);
+
+ if (link_info.execstack != link_info.noexecstack && link_info.execstack)
+ bfd_h_put_32 (stub_file->the_bfd, 0, &n_note->execstack);
+ else
+ bfd_h_put_32 (stub_file->the_bfd, 1, &n_note->execstack);
+
+}
+
+static void
+nto_create_output_section_statements (void)
+{
+ ${ARCH}_elf_create_output_section_statements ();
+ nto_add_note_section();
+}
+
+EOF
+
+# Define some shell vars to insert bits of code into the standard elf
+# parse_args and list_options functions.
+#
+
+PARSE_AND_LIST_PROLOGUE=${PARSE_AND_LIST_PROLOGUE}'
+enum nto_options
+{
+ OPTION_STACK = 500,
+ OPTION_LAZY_STACK,
+};
+'
+
+PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
+ { "stack", required_argument, NULL, OPTION_STACK },
+ { "lazy-stack", no_argument, NULL, OPTION_LAZY_STACK },
+'
+
+PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
+ fprintf (file, _("\
+ --stack <size> Set size of the initial stack\n\
+ --lazy-stack Set lazy allocation of stack\n\
+"));
+'
+
+PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
+ case OPTION_STACK:
+ {
+ char *end;
+ link_info.stacksize = strtoul (optarg, &end, 0);
+ if (*end || link_info.stacksize < 0)
+ einfo (_("%F%P: invalid stack size `%s'\''\n"), optarg + 11);
+ if (!link_info.stacksize)
+ /* Use -1 for explicit no-stack, because zero means
+ 'default'. */
+ link_info.stacksize = -1;
+ break;
+ }
+ case OPTION_LAZY_STACK:
+ nto_lazy_stack = true;
+ break;
+'
+
+# Put these extra Neutrino routines in ld_${EMULATION_NAME}_emulation
+#
+
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=nto_create_output_section_statements
--- /dev/null
+
+# Expect script for various AARCH64 NTO tests.
+# Copyright (C) 2009-2022 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.
+
+# Exclude non-aarch64-NTO targets.
+if { ![istarget "aarch64*-*-nto*"] } {
+ return
+}
+
+run_dump_test "nto-stack-note-1"
+run_dump_test "nto-stack-note-2"
projects / binutils-gdb.git / commitdiff