From 9b8b325a1f4cdaf235e7d803849dde6ededec865 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sun, 20 Sep 2015 12:20:19 +0930 Subject: [PATCH] Add --no-dynamic-linker option to ld, for static PIE use Inhibits output of .interp section in ELF executables. include/ * bfdlink.h (struct bfd_link_info): Add "nointerp" field. bfd/ * elflink.c (_bfd_elf_link_create_dynamic_sections): Don't create .interp when info->nointerp. (bfd_elf_size_dynamic_sections): Adjust assert. * elf32-arm.c (elf32_arm_size_dynamic_sections): Don't size .interp when info->nointerp. * elf32-bfin.c (elf32_bfinfdpic_size_dynamic_sections): Likewise. * elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise. * elf32-cris.c (elf_cris_size_dynamic_sections): Likewise. * elf32-frv.c (elf32_frvfdpic_size_dynamic_sections): Likewise. * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise. * elf32-i370.c (i370_elf_size_dynamic_sections): Likewise. * elf32-i386.c (elf_i386_size_dynamic_sections): Likewise. * elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise. * elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise. * elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise. * elf32-metag.c (elf_metag_size_dynamic_sections): Likewise. * elf32-nds32.c (nds32_elf_size_dynamic_sections): Likewise. * elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise. * elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. * elf32-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise. * elf32-sh.c (sh_elf_size_dynamic_sections): Likewise. * elf32-tic6x.c (elf32_tic6x_size_dynamic_sections): Likewise. * elf32-tilepro.c (tilepro_elf_size_dynamic_sections): Likewise. * elf32-vax.c (elf_vax_size_dynamic_sections): Likewise. * elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise. * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise. * elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise. * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise. * elf64-s390.c (elf_s390_size_dynamic_sections): Likewise. * elf64-sh64.c (sh64_elf64_size_dynamic_sections): Likewise. * elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Likewise. * elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise. * elfnn-ia64.c (elfNN_ia64_size_dynamic_sections): Likewise. * elfxx-mips.c (_bfd_mips_elf_size_dynamic_sections): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise. * elfxx-tilegx.c (tilegx_elf_size_dynamic_sections): Likewise. ld/ * ld.texinfo (--no-dynamic-linker): Document. * ldlex.h (enum option_values): Add OPTION_NO_DYNAMIC_LINKER. * lexsup.c (ld_options, parse_args): Handle --no-dynamic-linker. --- bfd/ChangeLog | 42 ++++++++++++++++++++++++++++++++++++++++++ bfd/elf32-arm.c | 2 +- bfd/elf32-bfin.c | 2 +- bfd/elf32-cr16.c | 2 +- bfd/elf32-cris.c | 2 +- bfd/elf32-frv.c | 2 +- bfd/elf32-hppa.c | 2 +- bfd/elf32-i370.c | 2 +- bfd/elf32-i386.c | 2 +- bfd/elf32-lm32.c | 2 +- bfd/elf32-m32r.c | 2 +- bfd/elf32-m68k.c | 2 +- bfd/elf32-metag.c | 2 +- bfd/elf32-nds32.c | 2 +- bfd/elf32-nios2.c | 2 +- bfd/elf32-or1k.c | 2 +- bfd/elf32-ppc.c | 2 +- bfd/elf32-s390.c | 2 +- bfd/elf32-score.c | 2 +- bfd/elf32-score7.c | 2 +- bfd/elf32-sh.c | 2 +- bfd/elf32-tic6x.c | 2 +- bfd/elf32-tilepro.c | 2 +- bfd/elf32-vax.c | 2 +- bfd/elf32-xtensa.c | 2 +- bfd/elf64-alpha.c | 2 +- bfd/elf64-hppa.c | 2 +- bfd/elf64-ppc.c | 2 +- bfd/elf64-s390.c | 2 +- bfd/elf64-sh64.c | 2 +- bfd/elf64-x86-64.c | 2 +- bfd/elflink.c | 4 ++-- bfd/elfnn-aarch64.c | 2 +- bfd/elfnn-ia64.c | 2 +- bfd/elfxx-mips.c | 2 +- bfd/elfxx-sparc.c | 2 +- bfd/elfxx-tilegx.c | 2 +- include/ChangeLog | 4 ++++ include/bfdlink.h | 3 +++ ld/ChangeLog | 6 ++++++ ld/ld.texinfo | 7 +++++++ ld/ldlex.h | 1 + ld/lexsup.c | 7 +++++++ 43 files changed, 107 insertions(+), 37 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 70d99523e5..37ba69fa3a 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,45 @@ +2015-09-20 Rich Felker + + * elflink.c (_bfd_elf_link_create_dynamic_sections): Don't create + .interp when info->nointerp. + (bfd_elf_size_dynamic_sections): Adjust assert. + * elf32-arm.c (elf32_arm_size_dynamic_sections): Don't size .interp + when info->nointerp. + * elf32-bfin.c (elf32_bfinfdpic_size_dynamic_sections): Likewise. + * elf32-cr16.c (_bfd_cr16_elf_size_dynamic_sections): Likewise. + * elf32-cris.c (elf_cris_size_dynamic_sections): Likewise. + * elf32-frv.c (elf32_frvfdpic_size_dynamic_sections): Likewise. + * elf32-hppa.c (elf32_hppa_size_dynamic_sections): Likewise. + * elf32-i370.c (i370_elf_size_dynamic_sections): Likewise. + * elf32-i386.c (elf_i386_size_dynamic_sections): Likewise. + * elf32-lm32.c (lm32_elf_size_dynamic_sections): Likewise. + * elf32-m32r.c (m32r_elf_size_dynamic_sections): Likewise. + * elf32-m68k.c (elf_m68k_size_dynamic_sections): Likewise. + * elf32-metag.c (elf_metag_size_dynamic_sections): Likewise. + * elf32-nds32.c (nds32_elf_size_dynamic_sections): Likewise. + * elf32-nios2.c (nios2_elf32_size_dynamic_sections): Likewise. + * elf32-or1k.c (or1k_elf_size_dynamic_sections): Likewise. + * elf32-ppc.c (ppc_elf_size_dynamic_sections): Likewise. + * elf32-s390.c (elf_s390_size_dynamic_sections): Likewise. + * elf32-score.c (s3_bfd_score_elf_size_dynamic_sections): Likewise. + * elf32-score7.c (s7_bfd_score_elf_size_dynamic_sections): Likewise. + * elf32-sh.c (sh_elf_size_dynamic_sections): Likewise. + * elf32-tic6x.c (elf32_tic6x_size_dynamic_sections): Likewise. + * elf32-tilepro.c (tilepro_elf_size_dynamic_sections): Likewise. + * elf32-vax.c (elf_vax_size_dynamic_sections): Likewise. + * elf32-xtensa.c (elf_xtensa_size_dynamic_sections): Likewise. + * elf64-alpha.c (elf64_alpha_size_dynamic_sections): Likewise. + * elf64-hppa.c (elf64_hppa_size_dynamic_sections): Likewise. + * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Likewise. + * elf64-s390.c (elf_s390_size_dynamic_sections): Likewise. + * elf64-sh64.c (sh64_elf64_size_dynamic_sections): Likewise. + * elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Likewise. + * elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Likewise. + * elfnn-ia64.c (elfNN_ia64_size_dynamic_sections): Likewise. + * elfxx-mips.c (_bfd_mips_elf_size_dynamic_sections): Likewise. + * elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise. + * elfxx-tilegx.c (tilegx_elf_size_dynamic_sections): Likewise. + 2015-09-18 Doug Evans * targets.c (enum bfd_flavour): Add comment. diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index b65ae3995f..bd41fd0ec9 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -13786,7 +13786,7 @@ elf32_arm_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-bfin.c b/bfd/elf32-bfin.c index 152134ee7b..0d4d9cf663 100644 --- a/bfd/elf32-bfin.c +++ b/bfd/elf32-bfin.c @@ -4255,7 +4255,7 @@ elf32_bfinfdpic_size_dynamic_sections (bfd *output_bfd, if (htab->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-cr16.c b/bfd/elf32-cr16.c index 5d8ffbcaa6..497630e987 100644 --- a/bfd/elf32-cr16.c +++ b/bfd/elf32-cr16.c @@ -2464,7 +2464,7 @@ _bfd_cr16_elf_size_dynamic_sections (bfd * output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { #if 0 s = bfd_get_linker_section (dynobj, ".interp"); diff --git a/bfd/elf32-cris.c b/bfd/elf32-cris.c index 303117393f..5b40524707 100644 --- a/bfd/elf32-cris.c +++ b/bfd/elf32-cris.c @@ -3764,7 +3764,7 @@ elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-frv.c b/bfd/elf32-frv.c index fa12528b3d..1dd2e8cac5 100644 --- a/bfd/elf32-frv.c +++ b/bfd/elf32-frv.c @@ -5442,7 +5442,7 @@ elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c index 8f0f4d0f08..ad40914c48 100644 --- a/bfd/elf32-hppa.c +++ b/bfd/elf32-hppa.c @@ -2215,7 +2215,7 @@ elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->etab.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { sec = bfd_get_linker_section (dynobj, ".interp"); if (sec == NULL) diff --git a/bfd/elf32-i370.c b/bfd/elf32-i370.c index 7fba4d1f41..458f69495d 100644 --- a/bfd/elf32-i370.c +++ b/bfd/elf32-i370.c @@ -594,7 +594,7 @@ i370_elf_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c index 85885f71e1..93904503e4 100644 --- a/bfd/elf32-i386.c +++ b/bfd/elf32-i386.c @@ -2876,7 +2876,7 @@ elf_i386_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf32-lm32.c b/bfd/elf32-lm32.c index 23f6e5ea75..0805e3c9a5 100644 --- a/bfd/elf32-lm32.c +++ b/bfd/elf32-lm32.c @@ -2141,7 +2141,7 @@ lm32_elf_size_dynamic_sections (bfd *output_bfd, if (htab->root.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-m32r.c b/bfd/elf32-m32r.c index 155d07904f..a2e3c7ce64 100644 --- a/bfd/elf32-m32r.c +++ b/bfd/elf32-m32r.c @@ -2170,7 +2170,7 @@ m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->root.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-m68k.c b/bfd/elf32-m68k.c index f807e03741..03940fde24 100644 --- a/bfd/elf32-m68k.c +++ b/bfd/elf32-m68k.c @@ -3257,7 +3257,7 @@ elf_m68k_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-metag.c b/bfd/elf32-metag.c index 0fcafc4d9c..596cf761a7 100644 --- a/bfd/elf32-metag.c +++ b/bfd/elf32-metag.c @@ -2848,7 +2848,7 @@ elf_metag_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->etab.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf32-nds32.c b/bfd/elf32-nds32.c index e59110053a..28d4df8b93 100644 --- a/bfd/elf32-nds32.c +++ b/bfd/elf32-nds32.c @@ -3980,7 +3980,7 @@ nds32_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->root.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (!bfd_link_pic (info)) + if (!bfd_link_pic (info) && !info->nointerp) { s = bfd_get_section_by_name (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-nios2.c b/bfd/elf32-nios2.c index 91897265c8..6b29d8b97f 100644 --- a/bfd/elf32-nios2.c +++ b/bfd/elf32-nios2.c @@ -5849,7 +5849,7 @@ nios2_elf32_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-or1k.c b/bfd/elf32-or1k.c index d4f92b78fd..a1eba0956e 100644 --- a/bfd/elf32-or1k.c +++ b/bfd/elf32-or1k.c @@ -2447,7 +2447,7 @@ or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->root.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_section_by_name (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 3f708cb171..708076d65e 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -6191,7 +6191,7 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-s390.c b/bfd/elf32-s390.c index 96c1531e7d..2143ee1773 100644 --- a/bfd/elf32-s390.c +++ b/bfd/elf32-s390.c @@ -2039,7 +2039,7 @@ elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf32-score.c b/bfd/elf32-score.c index a976a1539f..ce9c377755 100644 --- a/bfd/elf32-score.c +++ b/bfd/elf32-score.c @@ -3269,7 +3269,7 @@ s3_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *i if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (!bfd_link_pic (info)) + if (!bfd_link_pic (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-score7.c b/bfd/elf32-score7.c index 1af034eac0..b0e75bb9ca 100644 --- a/bfd/elf32-score7.c +++ b/bfd/elf32-score7.c @@ -3078,7 +3078,7 @@ s7_bfd_score_elf_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *i if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (!bfd_link_pic (info)) + if (!bfd_link_pic (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index fdeadd016d..9fa363615d 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -3349,7 +3349,7 @@ sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->root.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-tic6x.c b/bfd/elf32-tic6x.c index b6640eabc8..380ab8dd2b 100644 --- a/bfd/elf32-tic6x.c +++ b/bfd/elf32-tic6x.c @@ -3300,7 +3300,7 @@ elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf32-tilepro.c b/bfd/elf32-tilepro.c index cb3f896281..d55be2d3ce 100644 --- a/bfd/elf32-tilepro.c +++ b/bfd/elf32-tilepro.c @@ -2463,7 +2463,7 @@ tilepro_elf_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-vax.c b/bfd/elf32-vax.c index 6089e8c8f3..893ea8d5fb 100644 --- a/bfd/elf32-vax.c +++ b/bfd/elf32-vax.c @@ -1124,7 +1124,7 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c index ada3e5a3ce..c2aef2578e 100644 --- a/bfd/elf32-xtensa.c +++ b/bfd/elf32-xtensa.c @@ -1641,7 +1641,7 @@ elf_xtensa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, && htab->sgotloc != NULL); /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index 35c1ec6189..e46f27fdc5 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -2890,7 +2890,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf64-hppa.c b/bfd/elf64-hppa.c index 6f40b88481..3b628b466f 100644 --- a/bfd/elf64-hppa.c +++ b/bfd/elf64-hppa.c @@ -1558,7 +1558,7 @@ elf64_hppa_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { sec = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (sec != NULL); diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index 5ad5f48c0e..e5344df446 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -9815,7 +9815,7 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd, if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c index 0264236f2a..1c3769976e 100644 --- a/bfd/elf64-s390.c +++ b/bfd/elf64-s390.c @@ -1989,7 +1989,7 @@ elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elf64-sh64.c b/bfd/elf64-sh64.c index e4608953df..d920598008 100644 --- a/bfd/elf64-sh64.c +++ b/bfd/elf64-sh64.c @@ -3404,7 +3404,7 @@ sh64_elf64_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 2230c15bc1..cbb8cfb348 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -3227,7 +3227,7 @@ elf_x86_64_size_dynamic_sections (bfd *output_bfd, if (htab->elf.dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elflink.c b/bfd/elflink.c index 4e52d7bf09..aec96e5d61 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -246,7 +246,7 @@ _bfd_elf_link_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) /* A dynamically linked executable has a .interp section, but a shared library does not. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_make_section_anyway_with_flags (abfd, ".interp", flags | SEC_READONLY); @@ -5763,7 +5763,7 @@ bfd_elf_size_dynamic_sections (bfd *output_bfd, bfd_boolean all_defined; *sinterpptr = bfd_get_linker_section (dynobj, ".interp"); - BFD_ASSERT (*sinterpptr != NULL || !bfd_link_executable (info)); + BFD_ASSERT (*sinterpptr != NULL || !bfd_link_executable (info) || info->nointerp); if (soname != NULL) { diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c index c9780fcf11..24ef79f568 100644 --- a/bfd/elfnn-aarch64.c +++ b/bfd/elfnn-aarch64.c @@ -7982,7 +7982,7 @@ elfNN_aarch64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (htab->root.dynamic_sections_created) { - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); if (s == NULL) diff --git a/bfd/elfnn-ia64.c b/bfd/elfnn-ia64.c index c45fa2818a..3b304d53c8 100644 --- a/bfd/elfnn-ia64.c +++ b/bfd/elfnn-ia64.c @@ -2992,7 +2992,7 @@ elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, /* Set the contents of the .interp section to the interpreter. */ if (ia64_info->root.dynamic_sections_created - && bfd_link_executable (info)) + && bfd_link_executable (info) && !info->nointerp) { sec = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (sec != NULL); diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c index 5ece52d012..4689b21463 100644 --- a/bfd/elfxx-mips.c +++ b/bfd/elfxx-mips.c @@ -9579,7 +9579,7 @@ _bfd_mips_elf_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elfxx-sparc.c b/bfd/elfxx-sparc.c index 9bb71a9933..db0d4f1804 100644 --- a/bfd/elfxx-sparc.c +++ b/bfd/elfxx-sparc.c @@ -2559,7 +2559,7 @@ _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/bfd/elfxx-tilegx.c b/bfd/elfxx-tilegx.c index 59a2f7ef28..6f7485a027 100644 --- a/bfd/elfxx-tilegx.c +++ b/bfd/elfxx-tilegx.c @@ -2724,7 +2724,7 @@ tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (bfd_link_executable (info)) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); diff --git a/include/ChangeLog b/include/ChangeLog index 4fedda7ad0..8b9f921f29 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2015-09-20 Rich Felker + + * bfdlink.h (struct bfd_link_info): Add "nointerp" field. + 2015-08-23 Alan Modra * bfdlink.h (enum output_type): Reorder enum. diff --git a/include/bfdlink.h b/include/bfdlink.h index 43bcc6a904..2ffb3d1ab5 100644 --- a/include/bfdlink.h +++ b/include/bfdlink.h @@ -431,6 +431,9 @@ struct bfd_link_info /* TRUE if BND prefix in PLT entries is always generated. */ unsigned int bndplt: 1; + /* TRUE if generation of .interp/PT_INTERP should be suppressed. */ + unsigned int nointerp: 1; + /* Char that may appear as the first char of a symbol, but should be skipped (like symbol_leading_char) when looking up symbols in wrap_hash. Used by PowerPC Linux for 'dot' symbols. */ diff --git a/ld/ChangeLog b/ld/ChangeLog index e73abeb023..e1e06b83dc 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,9 @@ +2015-09-20 Rich Felker + + * ld.texinfo (--no-dynamic-linker): Document. + * ldlex.h (enum option_values): Add OPTION_NO_DYNAMIC_LINKER. + * lexsup.c (ld_options, parse_args): Handle --no-dynamic-linker. + 2015-09-18 Alan Modra * ld.texinfo: Document PowerPC64 --{no-,}save-restore-funcs. diff --git a/ld/ld.texinfo b/ld/ld.texinfo index c5d39d5e2c..6b7fac82fd 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -1455,6 +1455,13 @@ generating dynamically linked ELF executables. The default dynamic linker is normally correct; don't use this unless you know what you are doing. +@kindex --no-dynamic-linker +@item --no-dynamic-linker +When producing an executable file, omit the request for a dynamic +linker to be used at load-time. This is only meaningful for ELF +executables that contain dynamic relocations, and usually requires +entry point code that is capable of processing these relocations. + @kindex --fatal-warnings @kindex --no-fatal-warnings @item --fatal-warnings diff --git a/ld/ldlex.h b/ld/ldlex.h index 5629ef19f1..6f11e7bd21 100644 --- a/ld/ldlex.h +++ b/ld/ldlex.h @@ -33,6 +33,7 @@ enum option_values OPTION_DEFSYM, OPTION_DEMANGLE, OPTION_DYNAMIC_LINKER, + OPTION_NO_DYNAMIC_LINKER, OPTION_SYSROOT, OPTION_EB, OPTION_EL, diff --git a/ld/lexsup.c b/ld/lexsup.c index 5dc56dc148..fdd39a73dc 100644 --- a/ld/lexsup.c +++ b/ld/lexsup.c @@ -138,6 +138,9 @@ static const struct ld_option ld_options[] = { {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER}, 'I', N_("PROGRAM"), N_("Set PROGRAM as the dynamic linker to use"), TWO_DASHES }, + { {"no-dynamic-linker", no_argument, NULL, OPTION_NO_DYNAMIC_LINKER}, + '\0', NULL, N_("Produce an executable with no program interpreter header"), + TWO_DASHES }, { {"library", required_argument, NULL, 'l'}, 'l', N_("LIBNAME"), N_("Search for library LIBNAME"), TWO_DASHES }, { {"library-path", required_argument, NULL, 'L'}, @@ -761,6 +764,10 @@ parse_args (unsigned argc, char **argv) case 'I': /* Used on Solaris. */ case OPTION_DYNAMIC_LINKER: command_line.interpreter = optarg; + link_info.nointerp = 0; + break; + case OPTION_NO_DYNAMIC_LINKER: + link_info.nointerp = 1; break; case OPTION_SYSROOT: /* Already handled in ldmain.c. */ -- 2.34.1