160 lines
4.8 KiB
ArmAsm
160 lines
4.8 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++ -gmlt 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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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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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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.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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.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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.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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retq
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.Ltmp5:
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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 316774)" # 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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.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 0 # DW_CHILDREN_no
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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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.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 0 # EOM(3)
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.long 38 # 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:0x1f 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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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end2-.Lfunc_begin0 # DW_AT_high_pc
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.section .debug_ranges,"",@progbits
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.section .debug_macinfo,"",@progbits
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.Lcu_macro_begin0:
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.byte 0 # End Of Macro List Mark
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.ident "clang version 6.0.0 (trunk 316774)"
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.section ".note.GNU-stack","",@progbits
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.section .debug_line,"",@progbits
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.Lline_table_start0:
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