From abf874aafe3d717573e4a48bf0e3c6334e666a55 Mon Sep 17 00:00:00 2001 From: Christophe Lyon Date: Mon, 25 Nov 2019 08:55:37 +0000 Subject: Add support for non-contiguous memory regions 2020-01-06 Christophe Lyon bfd/ * bfd-in2.h: Regenerate. * section.c (asection): Add already_assigned field. (BFD_FAKE_SECTION): Add default initializer for it. * ecoff.c (bfd_debug_section): Initialize already_assigned field. * elf32-arm.c (arm_build_one_stub): Add support for non_contiguous_regions. * elf32-csky.c (csky_build_one_stub): Likewise. * elf32-hppa.c (hppa_build_one_stub): Likewise. * elf32-m68hc11.c (m68hc11_elf_build_one_stub): Likewise. * elf32-m68hc12.c (m68hc12_elf_build_one_stub): Likewise. * elf32-metag.c (metag_build_one_stub): Likewise. * elf32-nios2.c (nios2_build_one_stub): Likewise. * elf64-ppc.c (ppc_build_one_stub): Likewise. (ppc_size_one_stub): Likewise. * elfnn-aarch64.c (aarch64_build_one_stub): Likewise. * elflink.c (elf_link_input_bfd): Likewise. include/ * bfdlink.h (bfd_link_info): Add non_contiguous_regions and non_contiguous_regions_warnings fields. ld/ * ldlang.c (lang_add_section): Add support for non_contiguous_regions. (size_input_section): Likewise. (lang_size_sections_1): Likewise. (process_insert_statements): Likewise. * ldlex.h (option_values): Add OPTION_NON_CONTIGUOUS_REGIONS and OPTION_NON_CONTIGUOUS_REGIONS_WARNINGS. * lexsup.c (ld_options): Add entries for --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. (parse_args): Handle it. * NEWS: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings. * ld.texi: Add --enable-non-contiguous-regions and --enable-non-contiguous-regions-warnings documentation. * emultempl/armelf.em (elf32_arm_add_stub_section): Add SEC_LINKER_CREATED flag. * emultempl/xtensaelf.em (ld_build_required_section_dependence): Emit an error when --enable-non-contiguous-regions is used. * testsuite/ld-elf/non-contiguous.d: New. * testsuite/ld-elf/non-contiguous.ld: New. * testsuite/ld-elf/non-contiguous.s: New. * testsuite/ld-arm/arm-elf.exp: Run the new tests. * testsuite/ld-arm/arm-elf/non-contiguous-arm.s: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm2.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm3.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm4.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm5.ld: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.d: New. * testsuite/ld-arm/arm-elf/non-contiguous-arm6.ld: New. * testsuite/ld-powerpc/powerpc.exp: Run new tests. * testsuite/ld-powerpc/non-contiguous-powerpc.d: New. * testsuite/ld-powerpc/non-contiguous-powerpc.ld: New. * testsuite/ld-powerpc/non-contiguous-powerpc.sd: New. * testsuite/ld-powerpc/non-contiguous-powerpc64.d: New. --- bfd/elfnn-aarch64.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'bfd/elfnn-aarch64.c') diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c index ba3ad45..b00b6c4 100644 --- a/bfd/elfnn-aarch64.c +++ b/bfd/elfnn-aarch64.c @@ -3278,7 +3278,7 @@ _bfd_aarch64_add_stub_entry_after (const char *stub_name, static bfd_boolean aarch64_build_one_stub (struct bfd_hash_entry *gen_entry, - void *in_arg ATTRIBUTE_UNUSED) + void *in_arg) { struct elf_aarch64_stub_hash_entry *stub_entry; asection *stub_sec; @@ -3291,10 +3291,24 @@ aarch64_build_one_stub (struct bfd_hash_entry *gen_entry, unsigned int template_size; const uint32_t *template; unsigned int i; + struct bfd_link_info *info; /* Massage our args to the form they really have. */ stub_entry = (struct elf_aarch64_stub_hash_entry *) gen_entry; + info = (struct bfd_link_info *) in_arg; + + /* Fail if the target section could not be assigned to an output + section. The user should fix his linker script. */ + if (stub_entry->target_section->output_section == NULL + && info->non_contiguous_regions) + { + _bfd_error_handler (_("Could not assign '%pA' to an output section. " + "Retry without --enable-non-contiguous-regions.\n"), + stub_entry->target_section); + abort(); + } + stub_sec = stub_entry->stub_sec; /* Make a note of the offset within the stubs for this entry. */ -- cgit v1.1