# This tests that lldb is compatible with DWARF-4 entry values GNU extension
# with DW_TAG_GNU_call_site attributes order as produced by GCC:
# 0x000000b1: DW_TAG_GNU_call_site
# DW_AT_low_pc (0x000000000040111e)
# DW_AT_abstract_origin (0x000000cc "a")
# clang produces the attributes in opposite order:
# 0x00000064: DW_TAG_GNU_call_site
# DW_AT_abstract_origin (0x0000002a "a")
# DW_AT_low_pc (0x0000000000401146)
# REQUIRES: target-x86_64, system-linux, lld
# RUN: %clang_host -o %t %s
# RUN: %lldb %t -o r -o 'expression p' -o exit | FileCheck %s
# CHECK: (int) $0 = 1
# The DWARF has been produced and modified from:
# static __attribute__((noinline, noclone)) void b(int x) {
# asm("");
# }
# static __attribute__((noinline, noclone)) void a(int p) {
# b(2);
# }
# int main() {
# a(1);
# return 0;
# }
.text
.Ltext0:
.type b, @function
b:
.cfi_startproc
ret
.cfi_endproc
.size b, .-b
.type a, @function
a:
.LVL1:
.LFB1:
.cfi_startproc
movl $2, %edi
.LVL2:
call b
int3
ret
.cfi_endproc
.LFE1:
.size a, .-a
.globl main
.type main, @function
main:
.LFB2:
.cfi_startproc
movl $1, %edi
call a
.LVL4:
movl $0, %eax
ret
.cfi_endproc
.LFE2:
.size main, .-main
.Letext0:
.section .debug_info,"",@progbits
.Ldebug_info0:
.long .Ldebuginfo_end - .Ldebuginfo_start # Length of Compilation Unit Info
.Ldebuginfo_start:
.value 0x4 # DWARF version number
.long .Ldebug_abbrev0 # Offset Into Abbrev. Section
.byte 0x8 # Pointer Size (in bytes)
.uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
.asciz "GNU C17 10.1.1 20200507 (Red Hat 10.1.1-1) -mtune=generic -march=x86-64 -g -Og" # DW_AT_producer: "GNU C17 10.1.1 20200507 (Red Hat 10.1.1-1) -mtune=generic -march=x86-64 -g -Og"
.byte 0xc # DW_AT_language
.asciz "DW_TAG_GNU_call_site-DW_AT_low_pc.c" # DW_AT_name
.asciz "" # DW_AT_comp_dir: "/home/jkratoch/t"
.quad .Ltext0 # DW_AT_low_pc
.quad .Letext0-.Ltext0 # DW_AT_high_pc
.uleb128 0x2 # (DIE (0x2d) DW_TAG_subprogram)
# DW_AT_external
.asciz "main" # DW_AT_name: "main"
.long .Ltype_int - .Ldebug_info0 # DW_AT_type
.quad .LFB2 # DW_AT_low_pc
.quad .LFE2-.LFB2 # DW_AT_high_pc
.uleb128 0x1 # DW_AT_frame_base
.byte 0x9c # DW_OP_call_frame_cfa
# DW_AT_GNU_all_call_sites
.uleb128 0x3 # (DIE (0x4f) DW_TAG_GNU_call_site)
.quad .LVL4 # DW_AT_low_pc
.long .Lfunc_a - .Ldebug_info0 # DW_AT_abstract_origin
.uleb128 0x4 # (DIE (0x5c) DW_TAG_GNU_call_site_parameter)
.uleb128 0x1 # DW_AT_location
.byte 0x55 # DW_OP_reg5
.uleb128 0x1 # DW_AT_GNU_call_site_value
.byte 0x31 # DW_OP_lit1
.byte 0 # end of children of DIE 0x4f
.byte 0 # end of children of DIE 0x2d
.Ltype_int:
.uleb128 0x5 # (DIE (0x63) DW_TAG_base_type)
.byte 0x4 # DW_AT_byte_size
.byte 0x5 # DW_AT_encoding
.asciz "int" # DW_AT_name
.Lfunc_a:
.uleb128 0x6 # (DIE (0x6a) DW_TAG_subprogram)
.asciz "a" # DW_AT_name
# DW_AT_prototyped
.quad .LFB1 # DW_AT_low_pc
.quad .LFE1-.LFB1 # DW_AT_high_pc
.uleb128 0x1 # DW_AT_frame_base
.byte 0x9c # DW_OP_call_frame_cfa
# DW_AT_GNU_all_call_sites
.uleb128 0x7 # (DIE (0x86) DW_TAG_formal_parameter)
.asciz "p" # DW_AT_name
.long .Ltype_int - .Ldebug_info0 # DW_AT_type
.long .LLST0 # DW_AT_location
.byte 0 # end of children of DIE 0x6a
.byte 0 # end of children of DIE 0xb
.Ldebuginfo_end:
.section .debug_abbrev,"",@progbits
.Ldebug_abbrev0:
.uleb128 0x1 # (abbrev code)
.uleb128 0x11 # (TAG: DW_TAG_compile_unit)
.byte 0x1 # DW_children_yes
.uleb128 0x25 # (DW_AT_producer)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x13 # (DW_AT_language)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x1b # (DW_AT_comp_dir)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x7 # (DW_FORM_data8)
.byte 0
.byte 0
.uleb128 0x2 # (abbrev code)
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
.byte 0x1 # DW_children_yes
.uleb128 0x3f # (DW_AT_external)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x7 # (DW_FORM_data8)
.uleb128 0x40 # (DW_AT_frame_base)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
.uleb128 0x19 # (DW_FORM_flag_present)
.byte 0
.byte 0
.uleb128 0x3 # (abbrev code)
.uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site)
.byte 0x1 # DW_children_yes
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x31 # (DW_AT_abstract_origin)
.uleb128 0x13 # (DW_FORM_ref4)
.byte 0
.byte 0
.uleb128 0x4 # (abbrev code)
.uleb128 0x410a # (TAG: DW_TAG_GNU_call_site_parameter)
.byte 0 # DW_children_no
.uleb128 0x2 # (DW_AT_location)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2111 # (DW_AT_GNU_call_site_value)
.uleb128 0x18 # (DW_FORM_exprloc)
.byte 0
.byte 0
.uleb128 0x5 # (abbrev code)
.uleb128 0x24 # (TAG: DW_TAG_base_type)
.byte 0 # DW_children_no
.uleb128 0xb # (DW_AT_byte_size)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3e # (DW_AT_encoding)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.byte 0
.byte 0
.uleb128 0x6 # (abbrev code)
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
.byte 0x1 # DW_children_yes
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x27 # (DW_AT_prototyped)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x7 # (DW_FORM_data8)
.uleb128 0x40 # (DW_AT_frame_base)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
.uleb128 0x19 # (DW_FORM_flag_present)
.byte 0
.byte 0
.uleb128 0x7 # (abbrev code)
.uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
.byte 0 # DW_children_no
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x2 # (DW_AT_location)
.uleb128 0x17 # (DW_FORM_sec_offset)
.byte 0
.byte 0
.byte 0
.section .debug_loc,"",@progbits
.LLST0:
.quad .LVL1-.Ltext0 # Location list begin address (*.LLST0)
.quad .LVL2-.Ltext0 # Location list end address (*.LLST0)
.value 0x1 # Location expression size
.byte 0x55 # DW_OP_reg5
.quad .LVL2-.Ltext0 # Location list begin address (*.LLST0)
.quad .LFE1-.Ltext0 # Location list end address (*.LLST0)
.value 0x4 # Location expression size
.byte 0xf3 # DW_OP_GNU_entry_value
.uleb128 0x1
.byte 0x55 # DW_OP_reg5
.byte 0x9f # DW_OP_stack_value
.quad 0 # Location list terminator begin (*.LLST0)
.quad 0 # Location list terminator end (*.LLST0)
.section .note.GNU-stack,"",@progbits
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