381 lines
15 KiB
ArmAsm
381 lines
15 KiB
ArmAsm
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# Source (tiny.cc):
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# void a() {}
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# void b() {}
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# int main(int argc, char** argv) {
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# void(*ptr)();
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# if (argc == 1)
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# ptr = &a;
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# else
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# ptr = &b;
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# ptr();
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# }
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# Compile with:
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# clang++ -g tiny.cc -S -o tiny.s
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.text
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.file "tiny.cc"
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.globl _Z1av # -- Begin function _Z1av
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.p2align 4, 0x90
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.type _Z1av,@function
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_Z1av: # @_Z1av
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.Lfunc_begin0:
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.file 1 "tiny.cc"
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.loc 1 1 0 # tiny.cc:1:0
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.cfi_startproc
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# %bb.0:
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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.Ltmp0:
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.loc 1 1 11 prologue_end # tiny.cc:1:11
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popq %rbp
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.cfi_def_cfa %rsp, 8
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retq
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.Ltmp1:
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.Lfunc_end0:
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.size _Z1av, .Lfunc_end0-_Z1av
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.cfi_endproc
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# -- End function
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.globl _Z1bv # -- Begin function _Z1bv
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.p2align 4, 0x90
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.type _Z1bv,@function
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_Z1bv: # @_Z1bv
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.Lfunc_begin1:
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.loc 1 2 0 # tiny.cc:2:0
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.cfi_startproc
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# %bb.0:
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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.Ltmp2:
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.loc 1 2 11 prologue_end # tiny.cc:2:11
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popq %rbp
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.cfi_def_cfa %rsp, 8
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retq
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.Ltmp3:
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.Lfunc_end1:
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.size _Z1bv, .Lfunc_end1-_Z1bv
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.cfi_endproc
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# -- End function
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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.Lfunc_begin2:
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.loc 1 4 0 # tiny.cc:4:0
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.cfi_startproc
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# %bb.0:
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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subq $32, %rsp
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movl $0, -4(%rbp)
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movl %edi, -8(%rbp)
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movq %rsi, -16(%rbp)
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.Ltmp4:
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.loc 1 6 12 prologue_end # tiny.cc:6:12
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cmpl $1, -8(%rbp)
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.Ltmp5:
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.loc 1 6 7 is_stmt 0 # tiny.cc:6:7
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jne .LBB2_2
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# %bb.1:
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.loc 1 0 7 # tiny.cc:0:7
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movabsq $_Z1av, %rax
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.Ltmp6:
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.loc 1 7 9 is_stmt 1 # tiny.cc:7:9
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movq %rax, -24(%rbp)
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.loc 1 7 5 is_stmt 0 # tiny.cc:7:5
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jmp .LBB2_3
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.LBB2_2:
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.loc 1 0 5 # tiny.cc:0:5
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movabsq $_Z1bv, %rax
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.loc 1 9 9 is_stmt 1 # tiny.cc:9:9
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movq %rax, -24(%rbp)
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.Ltmp7:
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.LBB2_3:
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.loc 1 11 3 # tiny.cc:11:3
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callq *-24(%rbp)
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.loc 1 12 1 # tiny.cc:12:1
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movl -4(%rbp), %eax
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addq $32, %rsp
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popq %rbp
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.cfi_def_cfa %rsp, 8
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retq
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.Ltmp8:
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.Lfunc_end2:
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.size main, .Lfunc_end2-main
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.cfi_endproc
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# -- End function
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "clang version 6.0.0 (trunk 317104)" # string offset=0
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.Linfo_string1:
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.asciz "tiny.cc" # string offset=35
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.Linfo_string2:
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.asciz "/tmp/a/b" # string offset=43
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.Linfo_string3:
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.asciz "_Z1av" # string offset=52
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.Linfo_string4:
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.asciz "a" # string offset=58
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.Linfo_string5:
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.asciz "_Z1bv" # string offset=60
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.Linfo_string6:
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.asciz "b" # string offset=66
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.Linfo_string7:
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.asciz "main" # string offset=68
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.Linfo_string8:
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.asciz "int" # string offset=73
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.Linfo_string9:
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.asciz "argc" # string offset=77
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.Linfo_string10:
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.asciz "argv" # string offset=82
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.Linfo_string11:
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.asciz "char" # string offset=87
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.Linfo_string12:
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.asciz "ptr" # string offset=92
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 1 # DW_CHILDREN_yes
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.byte 37 # DW_AT_producer
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.byte 14 # DW_FORM_strp
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 27 # DW_AT_comp_dir
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.byte 14 # DW_FORM_strp
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.ascii "\264B" # DW_AT_GNU_pubnames
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.byte 25 # DW_FORM_flag_present
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 2 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 0 # DW_CHILDREN_no
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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.byte 110 # DW_AT_linkage_name
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.byte 14 # DW_FORM_strp
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 3 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 1 # DW_CHILDREN_yes
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 4 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 5 # Abbreviation Code
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.byte 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 6 # Abbreviation Code
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.byte 36 # DW_TAG_base_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 62 # DW_AT_encoding
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.byte 11 # DW_FORM_data1
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 7 # Abbreviation Code
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.byte 15 # DW_TAG_pointer_type
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.byte 0 # DW_CHILDREN_no
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 8 # Abbreviation Code
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.byte 21 # DW_TAG_subroutine_type
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.byte 0 # DW_CHILDREN_no
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.long 187 # Length of Unit
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0xb4 DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_producer
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.short 4 # DW_AT_language
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.long .Linfo_string1 # DW_AT_name
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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# DW_AT_GNU_pubnames
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end2-.Lfunc_begin0 # DW_AT_high_pc
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.byte 2 # Abbrev [2] 0x2a:0x19 DW_TAG_subprogram
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 86
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.long .Linfo_string3 # DW_AT_linkage_name
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.long .Linfo_string4 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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# DW_AT_external
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.byte 2 # Abbrev [2] 0x43:0x19 DW_TAG_subprogram
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.quad .Lfunc_begin1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 86
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.long .Linfo_string5 # DW_AT_linkage_name
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.long .Linfo_string6 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 2 # DW_AT_decl_line
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# DW_AT_external
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.byte 3 # Abbrev [3] 0x5c:0x44 DW_TAG_subprogram
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.quad .Lfunc_begin2 # DW_AT_low_pc
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.long .Lfunc_end2-.Lfunc_begin2 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 86
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.long .Linfo_string7 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 160 # DW_AT_type
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# DW_AT_external
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.byte 4 # Abbrev [4] 0x75:0xe DW_TAG_formal_parameter
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.byte 2 # DW_AT_location
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.byte 145
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.byte 120
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.long .Linfo_string9 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 160 # DW_AT_type
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.byte 4 # Abbrev [4] 0x83:0xe DW_TAG_formal_parameter
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.byte 2 # DW_AT_location
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.byte 145
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.byte 112
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.long .Linfo_string10 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 167 # DW_AT_type
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.byte 5 # Abbrev [5] 0x91:0xe DW_TAG_variable
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.byte 2 # DW_AT_location
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.byte 145
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.byte 104
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.long .Linfo_string12 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.long 184 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 6 # Abbrev [6] 0xa0:0x7 DW_TAG_base_type
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.long .Linfo_string8 # DW_AT_name
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.byte 5 # DW_AT_encoding
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.byte 4 # DW_AT_byte_size
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.byte 7 # Abbrev [7] 0xa7:0x5 DW_TAG_pointer_type
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.long 172 # DW_AT_type
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.byte 7 # Abbrev [7] 0xac:0x5 DW_TAG_pointer_type
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.long 177 # DW_AT_type
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.byte 6 # Abbrev [6] 0xb1:0x7 DW_TAG_base_type
|
||
|
|
.long .Linfo_string11 # DW_AT_name
|
||
|
|
.byte 6 # DW_AT_encoding
|
||
|
|
.byte 1 # DW_AT_byte_size
|
||
|
|
.byte 7 # Abbrev [7] 0xb8:0x5 DW_TAG_pointer_type
|
||
|
|
.long 189 # DW_AT_type
|
||
|
|
.byte 8 # Abbrev [8] 0xbd:0x1 DW_TAG_subroutine_type
|
||
|
|
.byte 0 # End Of Children Mark
|
||
|
|
.section .debug_ranges,"",@progbits
|
||
|
|
.section .debug_macinfo,"",@progbits
|
||
|
|
.Lcu_macro_begin0:
|
||
|
|
.byte 0 # End Of Macro List Mark
|
||
|
|
.section .debug_pubnames,"",@progbits
|
||
|
|
.long .LpubNames_end0-.LpubNames_begin0 # Length of Public Names Info
|
||
|
|
.LpubNames_begin0:
|
||
|
|
.short 2 # DWARF Version
|
||
|
|
.long .Lcu_begin0 # Offset of Compilation Unit Info
|
||
|
|
.long 191 # Compilation Unit Length
|
||
|
|
.long 42 # DIE offset
|
||
|
|
.asciz "a" # External Name
|
||
|
|
.long 67 # DIE offset
|
||
|
|
.asciz "b" # External Name
|
||
|
|
.long 92 # DIE offset
|
||
|
|
.asciz "main" # External Name
|
||
|
|
.long 0 # End Mark
|
||
|
|
.LpubNames_end0:
|
||
|
|
.section .debug_pubtypes,"",@progbits
|
||
|
|
.long .LpubTypes_end0-.LpubTypes_begin0 # Length of Public Types Info
|
||
|
|
.LpubTypes_begin0:
|
||
|
|
.short 2 # DWARF Version
|
||
|
|
.long .Lcu_begin0 # Offset of Compilation Unit Info
|
||
|
|
.long 191 # Compilation Unit Length
|
||
|
|
.long 160 # DIE offset
|
||
|
|
.asciz "int" # External Name
|
||
|
|
.long 177 # DIE offset
|
||
|
|
.asciz "char" # External Name
|
||
|
|
.long 0 # End Mark
|
||
|
|
.LpubTypes_end0:
|
||
|
|
|
||
|
|
.ident "clang version 6.0.0 (trunk 317104)"
|
||
|
|
.section ".note.GNU-stack","",@progbits
|
||
|
|
.section .debug_line,"",@progbits
|
||
|
|
.Lline_table_start0:
|