| # Source (tiny.cc): |
| # void a() {} |
| # void b() {} |
| # int main(int argc, char** argv) { |
| # void(*ptr)(); |
| # if (argc == 1) |
| # ptr = &a; |
| # else |
| # ptr = &b; |
| # ptr(); |
| # } |
| # Compile with (output is in tiny.s.0): |
| # clang++ -flto -fsanitize=cfi -fvisibility=hidden -c tiny.cc -o tiny.o -gmlt |
| # clang++ tiny.o -o tiny -flto -fuse-ld=gold -Wl,-plugin-opt,save-temps |
| # clang++ -fsanitize=cfi -flto -fvisibility=hidden -c tiny.cc -o tiny.o -gmlt |
| # llvm-lto2 run @tiny.resolution.txt -o tiny.s -filetype=asm |
| |
| .text |
| .file "ld-temp.o" |
| .p2align 4, 0x90 |
| .type _Z1av.cfi,@function |
| _Z1av.cfi: |
| .Lfunc_begin0: |
| .file 1 "tiny.cc" |
| .loc 1 1 0 |
| .cfi_startproc |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| .Ltmp0: |
| .loc 1 1 11 prologue_end |
| popq %rbp |
| retq |
| .Ltmp1: |
| .Lfunc_end0: |
| .size _Z1av.cfi, .Lfunc_end0-_Z1av.cfi |
| .cfi_endproc |
| |
| .p2align 4, 0x90 |
| .type _Z1bv.cfi,@function |
| _Z1bv.cfi: |
| .Lfunc_begin1: |
| .loc 1 2 0 |
| .cfi_startproc |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| .Ltmp2: |
| .loc 1 2 11 prologue_end |
| popq %rbp |
| retq |
| .Ltmp3: |
| .Lfunc_end1: |
| .size _Z1bv.cfi, .Lfunc_end1-_Z1bv.cfi |
| .cfi_endproc |
| |
| .hidden main |
| .globl main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: |
| .Lfunc_begin2: |
| .loc 1 4 0 |
| .cfi_startproc |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| subq $32, %rsp |
| movl $0, -8(%rbp) |
| movl %edi, -4(%rbp) |
| movq %rsi, -24(%rbp) |
| .Ltmp4: |
| .loc 1 6 12 prologue_end |
| cmpl $1, -4(%rbp) |
| .loc 1 6 7 is_stmt 0 |
| jne .LBB2_2 |
| .loc 1 0 7 |
| leaq _Z1av(%rip), %rax |
| .loc 1 7 9 is_stmt 1 |
| movq %rax, -16(%rbp) |
| .loc 1 7 5 is_stmt 0 |
| jmp .LBB2_3 |
| .LBB2_2: |
| .loc 1 0 5 |
| leaq _Z1bv(%rip), %rax |
| .loc 1 9 9 is_stmt 1 |
| movq %rax, -16(%rbp) |
| .LBB2_3: |
| .loc 1 0 9 is_stmt 0 |
| leaq .L.cfi.jumptable(%rip), %rcx |
| .loc 1 11 3 is_stmt 1 |
| movq -16(%rbp), %rax |
| movq %rax, %rdx |
| subq %rcx, %rdx |
| movq %rdx, %rcx |
| shrq $3, %rcx |
| shlq $61, %rdx |
| orq %rcx, %rdx |
| cmpq $1, %rdx |
| jbe .LBB2_5 |
| ud2 |
| .LBB2_5: |
| callq *%rax |
| .loc 1 12 1 |
| movl -8(%rbp), %eax |
| addq $32, %rsp |
| popq %rbp |
| retq |
| .Ltmp5: |
| .Lfunc_end2: |
| .size main, .Lfunc_end2-main |
| .cfi_endproc |
| |
| .p2align 3, 0x90 |
| .type .L.cfi.jumptable,@function |
| .L.cfi.jumptable: |
| .Lfunc_begin3: |
| .cfi_startproc |
| #APP |
| jmp _Z1av.cfi@PLT |
| int3 |
| int3 |
| int3 |
| jmp _Z1bv.cfi@PLT |
| int3 |
| int3 |
| int3 |
| |
| #NO_APP |
| .Lfunc_end3: |
| .size .L.cfi.jumptable, .Lfunc_end3-.L.cfi.jumptable |
| .cfi_endproc |
| |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 6.0.0 (trunk 316774)" |
| .Linfo_string1: |
| .asciz "tiny.cc" |
| .Linfo_string2: |
| .asciz "" |
| .section .debug_abbrev,"",@progbits |
| .byte 1 |
| .byte 17 |
| .byte 0 |
| .byte 37 |
| .byte 14 |
| .byte 19 |
| .byte 5 |
| .byte 3 |
| .byte 14 |
| .byte 16 |
| .byte 23 |
| .byte 27 |
| .byte 14 |
| .byte 17 |
| .byte 1 |
| .byte 18 |
| .byte 6 |
| .byte 0 |
| .byte 0 |
| .byte 0 |
| .section .debug_info,"",@progbits |
| .Lcu_begin0: |
| .long 38 |
| .short 4 |
| .long .debug_abbrev |
| .byte 8 |
| .byte 1 |
| .long .Linfo_string0 |
| .short 4 |
| .long .Linfo_string1 |
| .long .Lline_table_start0 |
| .long .Linfo_string2 |
| .quad .Lfunc_begin0 |
| .long .Lfunc_end2-.Lfunc_begin0 |
| .section .debug_ranges,"",@progbits |
| .section .debug_macinfo,"",@progbits |
| .Lcu_macro_begin0: |
| .byte 0 |
| |
| .type _Z1av,@function |
| _Z1av = .L.cfi.jumptable |
| .type _Z1bv,@function |
| _Z1bv = .L.cfi.jumptable+8 |
| .ident "clang version 6.0.0 (trunk 316774)" |
| .section ".note.GNU-stack","",@progbits |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
| |