From bfb1e8c15a6b7d02cd0b9a124d01722a07ebf09a Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 17 Aug 2018 03:54:05 -0700 Subject: [PATCH] x86: Remove empty X86_FEATURE_1_AND property There is no need to generate .note.gnu.property section with empty X86_FEATURE_1_AND property. This patch adds fixup_gnu_properties to ELF linker backend so that x86 backend can remove it. bfd/ PR ld/23515 * elf-bfd.h (elf_backend_data): Add fixup_gnu_properties. * elf-properties.c (_bfd_elf_link_setup_gnu_properties): Call backend fixup_gnu_properties if it isn't NULL. Discard .note.gnu.property section if all properties have been removed. * elfxx-target.h (elf_backend_fixup_gnu_properties): New. (elfNN_bed): Initialize fixup_gnu_properties. * elfxx-x86.c (_bfd_x86_elf_link_fixup_gnu_properties): New function. * elfxx-x86.h (_bfd_x86_elf_link_fixup_gnu_properties): New prototype. (elf_backend_fixup_gnu_properties): New. ld/ PR ld/23515 * testsuite/ld-i386/ibt-plt-2a.d: Updated. * testsuite/ld-i386/ibt-plt-2b.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2a.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2b-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2b.d: Likewise. --- bfd/ChangeLog | 15 +++++++++++++ bfd/elf-bfd.h | 4 ++++ bfd/elf-properties.c | 12 +++++++++++ bfd/elfxx-target.h | 4 ++++ bfd/elfxx-x86.c | 28 +++++++++++++++++++++++++ bfd/elfxx-x86.h | 5 +++++ ld/ChangeLog | 10 +++++++++ ld/testsuite/ld-i386/ibt-plt-2a.d | 22 +++++++++---------- ld/testsuite/ld-i386/ibt-plt-2b.d | 26 +++++++++-------------- ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d | 24 ++++++++++----------- ld/testsuite/ld-x86-64/ibt-plt-2a.d | 24 ++++++++++----------- ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d | 20 +++++++----------- ld/testsuite/ld-x86-64/ibt-plt-2b.d | 20 +++++++----------- 13 files changed, 137 insertions(+), 77 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 4c7468f5703..4fbe0bf6bd6 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,18 @@ +2018-08-17 H.J. Lu + + PR ld/23515 + * elf-bfd.h (elf_backend_data): Add fixup_gnu_properties. + * elf-properties.c (_bfd_elf_link_setup_gnu_properties): Call + backend fixup_gnu_properties if it isn't NULL. Discard + .note.gnu.property section if all properties have been removed. + * elfxx-target.h (elf_backend_fixup_gnu_properties): New. + (elfNN_bed): Initialize fixup_gnu_properties. + * elfxx-x86.c (_bfd_x86_elf_link_fixup_gnu_properties): New + function. + * elfxx-x86.h (_bfd_x86_elf_link_fixup_gnu_properties): New + prototype. + (elf_backend_fixup_gnu_properties): New. + 2018-08-16 Alan Modra * elf64-ppc.c: Correct ppc_stub_long_branch_notoc example. diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 530679f9c8e..cf256f70e07 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -1479,6 +1479,10 @@ struct elf_backend_data /* Set up GNU properties. */ bfd *(*setup_gnu_properties) (struct bfd_link_info *); + /* Fix up GNU properties. */ + void (*fixup_gnu_properties) (struct bfd_link_info *, + elf_property_list **); + /* Encoding used for compact EH tables. */ int (*compact_eh_encoding) (struct bfd_link_info *); diff --git a/bfd/elf-properties.c b/bfd/elf-properties.c index f58bdc0711e..0d98ef1eec6 100644 --- a/bfd/elf-properties.c +++ b/bfd/elf-properties.c @@ -520,6 +520,18 @@ _bfd_elf_link_setup_gnu_properties (struct bfd_link_info *info) return NULL; } + /* Fix up GNU properties. */ + if (bed->fixup_gnu_properties) + bed->fixup_gnu_properties (info, &elf_properties (first_pbfd)); + + if (elf_properties (first_pbfd) == NULL) + { + /* Discard .note.gnu.property section if all properties have + been removed. */ + sec->output_section = bfd_abs_section_ptr; + return NULL; + } + /* Compute the section size. */ list = elf_properties (first_pbfd); size = elf_get_gnu_property_section_size (list, align_size); diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h index a86ea587a23..0c4de8cc66e 100644 --- a/bfd/elfxx-target.h +++ b/bfd/elfxx-target.h @@ -550,6 +550,9 @@ #ifndef elf_backend_setup_gnu_properties #define elf_backend_setup_gnu_properties _bfd_elf_link_setup_gnu_properties #endif +#ifndef elf_backend_fixup_gnu_properties +#define elf_backend_fixup_gnu_properties NULL +#endif #ifndef elf_backend_static_tls_alignment #define elf_backend_static_tls_alignment 1 #endif @@ -876,6 +879,7 @@ static struct elf_backend_data elfNN_bed = elf_backend_parse_gnu_properties, elf_backend_merge_gnu_properties, elf_backend_setup_gnu_properties, + elf_backend_fixup_gnu_properties, elf_backend_compact_eh_encoding, elf_backend_cant_unwind_opcode, elf_backend_static_tls_alignment, diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c index 2d8f7b640b5..1a4c723969f 100644 --- a/bfd/elfxx-x86.c +++ b/bfd/elfxx-x86.c @@ -2959,3 +2959,31 @@ error_alignment: return pbfd; } + +/* Fix up x86 GNU properties. */ + +void +_bfd_x86_elf_link_fixup_gnu_properties + (struct bfd_link_info *info ATTRIBUTE_UNUSED, + elf_property_list **listp) +{ + elf_property_list *p; + + for (p = *listp; p; p = p->next) + switch (p->property.pr_type) + { + case GNU_PROPERTY_X86_ISA_1_USED: + case GNU_PROPERTY_X86_ISA_1_NEEDED: + case GNU_PROPERTY_X86_FEATURE_1_AND: + if (p->property.u.number == 0) + { + /* Remove empty property. */ + *listp = p->next; + continue; + } + listp = &p->next; + break; + default: + break; + } +} diff --git a/bfd/elfxx-x86.h b/bfd/elfxx-x86.h index 6a5609467d5..964843822e3 100644 --- a/bfd/elfxx-x86.h +++ b/bfd/elfxx-x86.h @@ -684,6 +684,9 @@ extern enum elf_property_kind _bfd_x86_elf_parse_gnu_properties extern bfd_boolean _bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *, bfd *, elf_property *, elf_property *); +extern void _bfd_x86_elf_link_fixup_gnu_properties + (struct bfd_link_info *, elf_property_list **); + extern bfd * _bfd_x86_elf_link_setup_gnu_properties (struct bfd_link_info *, struct elf_x86_init_table *); @@ -726,3 +729,5 @@ extern void _bfd_x86_elf_link_fixup_ifunc_symbol _bfd_x86_elf_parse_gnu_properties #define elf_backend_merge_gnu_properties \ _bfd_x86_elf_merge_gnu_properties +#define elf_backend_fixup_gnu_properties \ + _bfd_x86_elf_link_fixup_gnu_properties diff --git a/ld/ChangeLog b/ld/ChangeLog index b833bf5a7c0..b1b8cf5d1a6 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,13 @@ +2018-08-17 H.J. Lu + + PR ld/23515 + * testsuite/ld-i386/ibt-plt-2a.d: Updated. + * testsuite/ld-i386/ibt-plt-2b.d: Likewise. + * testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise. + * testsuite/ld-x86-64/ibt-plt-2a.d: Likewise. + * testsuite/ld-x86-64/ibt-plt-2b-x32.d: Likewise. + * testsuite/ld-x86-64/ibt-plt-2b.d: Likewise. + 2018-08-12 H.J. Lu * testsuite/ld-x86-64/pr23486b.d: Swap pr23486a.s and pr23486a.s. diff --git a/ld/testsuite/ld-i386/ibt-plt-2a.d b/ld/testsuite/ld-i386/ibt-plt-2a.d index 03c8e127a9e..5825be43f4f 100644 --- a/ld/testsuite/ld-i386/ibt-plt-2a.d +++ b/ld/testsuite/ld-i386/ibt-plt-2a.d @@ -8,45 +8,45 @@ Disassembly of section .plt: -0+160 <.plt>: +0+140 <.plt>: +[a-f0-9]+: ff b3 04 00 00 00 pushl 0x4\(%ebx\) +[a-f0-9]+: ff a3 08 00 00 00 jmp \*0x8\(%ebx\) +[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%eax\) +[a-f0-9]+: f3 0f 1e fb endbr32 +[a-f0-9]+: 68 00 00 00 00 push \$0x0 - +[a-f0-9]+: e9 e2 ff ff ff jmp 160 <.plt> + +[a-f0-9]+: e9 e2 ff ff ff jmp 140 <.plt> +[a-f0-9]+: 66 90 xchg %ax,%ax +[a-f0-9]+: f3 0f 1e fb endbr32 +[a-f0-9]+: 68 08 00 00 00 push \$0x8 - +[a-f0-9]+: e9 d2 ff ff ff jmp 160 <.plt> + +[a-f0-9]+: e9 d2 ff ff ff jmp 140 <.plt> +[a-f0-9]+: 66 90 xchg %ax,%ax Disassembly of section .plt.sec: -0+190 : +0+170 : +[a-f0-9]+: f3 0f 1e fb endbr32 +[a-f0-9]+: ff a3 0c 00 00 00 jmp \*0xc\(%ebx\) +[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%eax,%eax,1\) -0+1a0 : +0+180 : +[a-f0-9]+: f3 0f 1e fb endbr32 +[a-f0-9]+: ff a3 10 00 00 00 jmp \*0x10\(%ebx\) +[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%eax,%eax,1\) Disassembly of section .text: -0+1b0 : +0+190 : +[a-f0-9]+: 53 push %ebx - +[a-f0-9]+: e8 18 00 00 00 call 1ce <__x86.get_pc_thunk.bx> - +[a-f0-9]+: 81 c3 36 11 00 00 add \$0x1136,%ebx + +[a-f0-9]+: e8 18 00 00 00 call 1ae <__x86.get_pc_thunk.bx> + +[a-f0-9]+: 81 c3 1a 11 00 00 add \$0x111a,%ebx +[a-f0-9]+: 83 ec 08 sub \$0x8,%esp - +[a-f0-9]+: e8 dc ff ff ff call 1a0 - +[a-f0-9]+: e8 c7 ff ff ff call 190 + +[a-f0-9]+: e8 dc ff ff ff call 180 + +[a-f0-9]+: e8 c7 ff ff ff call 170 +[a-f0-9]+: 83 c4 08 add \$0x8,%esp +[a-f0-9]+: 5b pop %ebx +[a-f0-9]+: c3 ret -0+1ce <__x86.get_pc_thunk.bx>: +0+1ae <__x86.get_pc_thunk.bx>: +[a-f0-9]+: 8b 1c 24 mov \(%esp\),%ebx +[a-f0-9]+: c3 ret #pass diff --git a/ld/testsuite/ld-i386/ibt-plt-2b.d b/ld/testsuite/ld-i386/ibt-plt-2b.d index d7b4e1e74cf..0fa9a998f10 100644 --- a/ld/testsuite/ld-i386/ibt-plt-2b.d +++ b/ld/testsuite/ld-i386/ibt-plt-2b.d @@ -18,37 +18,31 @@ Contents of the .eh_frame section: DW_CFA_nop DW_CFA_nop -0+18 0000001c 0000001c FDE cie=00000000 pc=000001b0..000001ce - DW_CFA_advance_loc: 1 to 000001b1 +0+18 0000001c 0000001c FDE cie=00000000 pc=00000190..000001ae + DW_CFA_advance_loc: 1 to 00000191 DW_CFA_def_cfa_offset: 8 DW_CFA_offset: r3 \(ebx\) at cfa-8 - DW_CFA_advance_loc: 14 to 000001bf + DW_CFA_advance_loc: 14 to 0000019f DW_CFA_def_cfa_offset: 16 - DW_CFA_advance_loc: 13 to 000001cc + DW_CFA_advance_loc: 13 to 000001ac DW_CFA_def_cfa_offset: 8 - DW_CFA_advance_loc: 1 to 000001cd + DW_CFA_advance_loc: 1 to 000001ad DW_CFA_restore: r3 \(ebx\) DW_CFA_def_cfa_offset: 4 -0+38 00000010 0000003c FDE cie=00000000 pc=000001ce..000001d2 +0+38 00000010 0000003c FDE cie=00000000 pc=000001ae..000001b2 DW_CFA_nop DW_CFA_nop DW_CFA_nop -0+4c 00000020 00000050 FDE cie=00000000 pc=00000160..00000190 +0+4c 00000020 00000050 FDE cie=00000000 pc=00000140..00000170 DW_CFA_def_cfa_offset: 8 - DW_CFA_advance_loc: 6 to 00000166 + DW_CFA_advance_loc: 6 to 00000146 DW_CFA_def_cfa_offset: 12 - DW_CFA_advance_loc: 10 to 00000170 + DW_CFA_advance_loc: 10 to 00000150 DW_CFA_def_cfa_expression \(DW_OP_breg4 \(esp\): 4; DW_OP_breg8 \(eip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit9; DW_OP_ge; DW_OP_lit2; DW_OP_shl; DW_OP_plus\) -0+70 00000010 00000074 FDE cie=00000000 pc=00000190..000001b0 +0+70 00000010 00000074 FDE cie=00000000 pc=00000170..00000190 DW_CFA_nop DW_CFA_nop DW_CFA_nop - - -Displaying notes found in: .note.gnu.property - Owner Data size Description - GNU 0x0000000c NT_GNU_PROPERTY_TYPE_0 - Properties: x86 feature: diff --git a/ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d b/ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d index 27f47d71795..70585634bf7 100644 --- a/ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d +++ b/ld/testsuite/ld-x86-64/ibt-plt-2a-x32.d @@ -8,36 +8,36 @@ Disassembly of section .plt: -0+160 <.plt>: - +[a-f0-9]+: ff 35 62 01 20 00 pushq 0x200162\(%rip\) # 2002c8 <_GLOBAL_OFFSET_TABLE_\+0x8> - +[a-f0-9]+: ff 25 64 01 20 00 jmpq \*0x200164\(%rip\) # 2002d0 <_GLOBAL_OFFSET_TABLE_\+0x10> +0+140 <.plt>: + +[a-f0-9]+: ff 35 4a 01 20 00 pushq 0x20014a\(%rip\) # 200290 <_GLOBAL_OFFSET_TABLE_\+0x8> + +[a-f0-9]+: ff 25 4c 01 20 00 jmpq \*0x20014c\(%rip\) # 200298 <_GLOBAL_OFFSET_TABLE_\+0x10> +[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%rax\) +[a-f0-9]+: f3 0f 1e fa endbr64 +[a-f0-9]+: 68 00 00 00 00 pushq \$0x0 - +[a-f0-9]+: e9 e2 ff ff ff jmpq 160 <.plt> + +[a-f0-9]+: e9 e2 ff ff ff jmpq 140 <.plt> +[a-f0-9]+: 66 90 xchg %ax,%ax +[a-f0-9]+: f3 0f 1e fa endbr64 +[a-f0-9]+: 68 01 00 00 00 pushq \$0x1 - +[a-f0-9]+: e9 d2 ff ff ff jmpq 160 <.plt> + +[a-f0-9]+: e9 d2 ff ff ff jmpq 140 <.plt> +[a-f0-9]+: 66 90 xchg %ax,%ax Disassembly of section .plt.sec: -0+190 : +0+170 : +[a-f0-9]+: f3 0f 1e fa endbr64 - +[a-f0-9]+: ff 25 3e 01 20 00 jmpq \*0x20013e\(%rip\) # 2002d8 + +[a-f0-9]+: ff 25 26 01 20 00 jmpq \*0x200126\(%rip\) # 2002a0 +[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\) -0+1a0 : +0+180 : +[a-f0-9]+: f3 0f 1e fa endbr64 - +[a-f0-9]+: ff 25 36 01 20 00 jmpq \*0x200136\(%rip\) # 2002e0 + +[a-f0-9]+: ff 25 1e 01 20 00 jmpq \*0x20011e\(%rip\) # 2002a8 +[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\) Disassembly of section .text: -0+1b0 : +0+190 : +[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp - +[a-f0-9]+: e8 e7 ff ff ff callq 1a0 + +[a-f0-9]+: e8 e7 ff ff ff callq 180 +[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp - +[a-f0-9]+: e9 ce ff ff ff jmpq 190 + +[a-f0-9]+: e9 ce ff ff ff jmpq 170 #pass diff --git a/ld/testsuite/ld-x86-64/ibt-plt-2a.d b/ld/testsuite/ld-x86-64/ibt-plt-2a.d index 62d77835b63..08943540266 100644 --- a/ld/testsuite/ld-x86-64/ibt-plt-2a.d +++ b/ld/testsuite/ld-x86-64/ibt-plt-2a.d @@ -8,36 +8,36 @@ Disassembly of section .plt: -0+220 <.plt>: - +[a-f0-9]+: ff 35 ea 01 20 00 pushq 0x2001ea\(%rip\) # 200410 <_GLOBAL_OFFSET_TABLE_\+0x8> - +[a-f0-9]+: f2 ff 25 eb 01 20 00 bnd jmpq \*0x2001eb\(%rip\) # 200418 <_GLOBAL_OFFSET_TABLE_\+0x10> +0+1f0 <.plt>: + +[a-f0-9]+: ff 35 ca 01 20 00 pushq 0x2001ca\(%rip\) # 2003c0 <_GLOBAL_OFFSET_TABLE_\+0x8> + +[a-f0-9]+: f2 ff 25 cb 01 20 00 bnd jmpq \*0x2001cb\(%rip\) # 2003c8 <_GLOBAL_OFFSET_TABLE_\+0x10> +[a-f0-9]+: 0f 1f 00 nopl \(%rax\) +[a-f0-9]+: f3 0f 1e fa endbr64 +[a-f0-9]+: 68 00 00 00 00 pushq \$0x0 - +[a-f0-9]+: f2 e9 e1 ff ff ff bnd jmpq 220 <.plt> + +[a-f0-9]+: f2 e9 e1 ff ff ff bnd jmpq 1f0 <.plt> +[a-f0-9]+: 90 nop +[a-f0-9]+: f3 0f 1e fa endbr64 +[a-f0-9]+: 68 01 00 00 00 pushq \$0x1 - +[a-f0-9]+: f2 e9 d1 ff ff ff bnd jmpq 220 <.plt> + +[a-f0-9]+: f2 e9 d1 ff ff ff bnd jmpq 1f0 <.plt> +[a-f0-9]+: 90 nop Disassembly of section .plt.sec: -0+250 : +0+220 : +[a-f0-9]+: f3 0f 1e fa endbr64 - +[a-f0-9]+: f2 ff 25 c5 01 20 00 bnd jmpq \*0x2001c5\(%rip\) # 200420 + +[a-f0-9]+: f2 ff 25 a5 01 20 00 bnd jmpq \*0x2001a5\(%rip\) # 2003d0 +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\) -0+260 : +0+230 : +[a-f0-9]+: f3 0f 1e fa endbr64 - +[a-f0-9]+: f2 ff 25 bd 01 20 00 bnd jmpq \*0x2001bd\(%rip\) # 200428 + +[a-f0-9]+: f2 ff 25 9d 01 20 00 bnd jmpq \*0x20019d\(%rip\) # 2003d8 +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\) Disassembly of section .text: -0+270 : +0+240 : +[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp - +[a-f0-9]+: e8 e7 ff ff ff callq 260 + +[a-f0-9]+: e8 e7 ff ff ff callq 230 +[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp - +[a-f0-9]+: e9 ce ff ff ff jmpq 250 + +[a-f0-9]+: e9 ce ff ff ff jmpq 220 #pass diff --git a/ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d b/ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d index b4ca2568959..2f7505a70d9 100644 --- a/ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d +++ b/ld/testsuite/ld-x86-64/ibt-plt-2b-x32.d @@ -18,27 +18,21 @@ Contents of the .eh_frame section: DW_CFA_nop DW_CFA_nop -0+18 00000014 0000001c FDE cie=00000000 pc=000001b0..000001c2 - DW_CFA_advance_loc: 4 to 000001b4 +0+18 00000014 0000001c FDE cie=00000000 pc=00000190..000001a2 + DW_CFA_advance_loc: 4 to 00000194 DW_CFA_def_cfa_offset: 16 - DW_CFA_advance_loc: 9 to 000001bd + DW_CFA_advance_loc: 9 to 0000019d DW_CFA_def_cfa_offset: 8 DW_CFA_nop -0+30 00000020 00000034 FDE cie=00000000 pc=00000160..00000190 +0+30 00000020 00000034 FDE cie=00000000 pc=00000140..00000170 DW_CFA_def_cfa_offset: 16 - DW_CFA_advance_loc: 6 to 00000166 + DW_CFA_advance_loc: 6 to 00000146 DW_CFA_def_cfa_offset: 24 - DW_CFA_advance_loc: 10 to 00000170 + DW_CFA_advance_loc: 10 to 00000150 DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit9; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\) -0+54 00000010 00000058 FDE cie=00000000 pc=00000190..000001b0 +0+54 00000010 00000058 FDE cie=00000000 pc=00000170..00000190 DW_CFA_nop DW_CFA_nop DW_CFA_nop - - -Displaying notes found in: .note.gnu.property - Owner Data size Description - GNU 0x0000000c NT_GNU_PROPERTY_TYPE_0 - Properties: x86 feature: diff --git a/ld/testsuite/ld-x86-64/ibt-plt-2b.d b/ld/testsuite/ld-x86-64/ibt-plt-2b.d index 4a670ee1b96..2bb59d0d836 100644 --- a/ld/testsuite/ld-x86-64/ibt-plt-2b.d +++ b/ld/testsuite/ld-x86-64/ibt-plt-2b.d @@ -18,31 +18,25 @@ Contents of the .eh_frame section: DW_CFA_nop DW_CFA_nop -0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000270..0000000000000282 - DW_CFA_advance_loc: 4 to 0000000000000274 +0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000240..0000000000000252 + DW_CFA_advance_loc: 4 to 0000000000000244 DW_CFA_def_cfa_offset: 16 - DW_CFA_advance_loc: 9 to 000000000000027d + DW_CFA_advance_loc: 9 to 000000000000024d DW_CFA_def_cfa_offset: 8 DW_CFA_nop -0+30 0000000000000024 00000034 FDE cie=00000000 pc=0000000000000220..0000000000000250 +0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001f0..0000000000000220 DW_CFA_def_cfa_offset: 16 - DW_CFA_advance_loc: 6 to 0000000000000226 + DW_CFA_advance_loc: 6 to 00000000000001f6 DW_CFA_def_cfa_offset: 24 - DW_CFA_advance_loc: 10 to 0000000000000230 + DW_CFA_advance_loc: 10 to 0000000000000200 DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit10; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\) DW_CFA_nop DW_CFA_nop DW_CFA_nop DW_CFA_nop -0+58 0000000000000010 0000005c FDE cie=00000000 pc=0000000000000250..0000000000000270 +0+58 0000000000000010 0000005c FDE cie=00000000 pc=0000000000000220..0000000000000240 DW_CFA_nop DW_CFA_nop DW_CFA_nop - - -Displaying notes found in: .note.gnu.property - Owner Data size Description - GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0 - Properties: x86 feature: -- 2.30.2