UNSUPPORTED: true ## Marking as unsupported for now, as this test needs an extra 8GB of disk space. ## This test verifies that llvm-dwp does not trigger a "no compile unit found" error ## in 'soft-stop' scenario, specifically when the overflow happens to be in a type unit. RUN: rm -rf %t && split-file %s %t && cd %t RUN: llvm-mc --triple=x86_64-unknown-linux --filetype=obj --split-dwarf-file=%t/main.dwo -dwarf-version=5 %t/main.s -o %t/main.o RUN: llvm-dwp %t/main.dwo -continue-on-cu-index-overflow=soft-stop -o %t/main.dwp 2>&1 | FileCheck %s CHECK: warning: debug_info Section Contribution Offset overflow 4G. Previous Offset {{.*}}, After overflow offset {{.*}}. CHECK-NOT: error: no compile unit found in file: {{.*}} #--- main.s # Note: This file is compiled from the following code, for # the purpose of creating an overflowed dwo section. # Add a '.fill' directive after the first TU to force # an overflow in the subsequent TU. # # clang++ -g -gsplit-dwarf -gdwarf-5 -fdebug-types-section -S main.cpp # #enum class DebugType { # INFO, # WARNING, # ERROR, # CRITICAL, # DEBUG #} g = DebugType::INFO; # #int main() { # return 0; #} .file "main.cpp" .file 0 "main.cpp" md5 1234567890123456789 .section .debug_info.dwo,"e",@progbits .long .Overflow_TU_end-.Overflow_TU_start # Length of Unit .Overflow_TU_start: .short 5 # DWARF version number .byte 6 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long 0 # Offset Into Abbrev. Section .quad 1234567890123456789 # Type Signature .long 33 # Type DIE Offset .byte 1 # Abbrev [1] 0x18:0x27 DW_TAG_type_unit .short 33 # DW_AT_language .byte 1 # DW_AT_comp_dir .byte 2 # DW_AT_dwo_name .long 0 # DW_AT_stmt_list .byte 2 # Abbrev [2] 0x21:0x19 DW_TAG_enumeration_type .long 58 # DW_AT_type .fill 4294967233 # 2^32 - 1 - 44, padding with `.fill` directive to make an offset overflow .Overflow_TU_end: .section .debug_info.dwo,"e",@progbits .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit .Ldebug_info_dwo_start0: .short 5 # DWARF version number .byte 6 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long 0 # Offset Into Abbrev. Section .quad 2124196671656770956 # Type Signature .long 33 # Type DIE Offset .byte 1 # Abbrev [1] 0x18:0x27 DW_TAG_type_unit .short 33 # DW_AT_language .byte 1 # DW_AT_comp_dir .byte 2 # DW_AT_dwo_name .long 0 # DW_AT_stmt_list .byte 2 # Abbrev [2] 0x21:0x19 DW_TAG_enumeration_type .long 58 # DW_AT_type # DW_AT_enum_class .byte 9 # DW_AT_name .byte 4 # DW_AT_byte_size .byte 0 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .byte 3 # Abbrev [3] 0x2a:0x3 DW_TAG_enumerator .byte 4 # DW_AT_name .byte 0 # DW_AT_const_value .byte 3 # Abbrev [3] 0x2d:0x3 DW_TAG_enumerator .byte 5 # DW_AT_name .byte 1 # DW_AT_const_value .byte 3 # Abbrev [3] 0x30:0x3 DW_TAG_enumerator .byte 6 # DW_AT_name .byte 2 # DW_AT_const_value .byte 3 # Abbrev [3] 0x33:0x3 DW_TAG_enumerator .byte 7 # DW_AT_name .byte 3 # DW_AT_const_value .byte 3 # Abbrev [3] 0x36:0x3 DW_TAG_enumerator .byte 8 # DW_AT_name .byte 4 # DW_AT_const_value .byte 0 # End Of Children Mark .byte 4 # Abbrev [4] 0x3a:0x4 DW_TAG_base_type .byte 3 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_dwo_end0: .text .globl main # -- Begin function main .p2align 4 .type main,@function main: # @main .Lfunc_begin0: .cfi_startproc # %bb.0: # %entry .loc 0 10 5 prologue_end # main.cpp:10:5 xorl %eax, %eax retq .Ltmp0: .Lfunc_end0: .size main, .Lfunc_end0-main .cfi_endproc # -- End function .section .debug_abbrev,"",@progbits .byte 1 # Abbreviation Code .byte 74 # DW_TAG_skeleton_unit .byte 0 # DW_CHILDREN_no .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 114 # DW_AT_str_offsets_base .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 37 # DW_FORM_strx1 .ascii "\264B" # DW_AT_GNU_pubnames .byte 25 # DW_FORM_flag_present .byte 118 # DW_AT_dwo_name .byte 37 # DW_FORM_strx1 .byte 17 # DW_AT_low_pc .byte 27 # DW_FORM_addrx .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 115 # DW_AT_addr_base .byte 23 # DW_FORM_sec_offset .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 0 # EOM(3) .section .debug_info,"",@progbits .Lcu_begin0: .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit .Ldebug_info_start0: .short 5 # DWARF version number .byte 4 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section .quad 9071746638605020729 .byte 1 # Abbrev [1] 0x14:0x14 DW_TAG_skeleton_unit .long .Lline_table_start0 # DW_AT_stmt_list .long .Lstr_offsets_base0 # DW_AT_str_offsets_base .byte 0 # DW_AT_comp_dir # DW_AT_GNU_pubnames .byte 1 # DW_AT_dwo_name .byte 0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .long .Laddr_table_base0 # DW_AT_addr_base .Ldebug_info_end0: .section .debug_str_offsets,"",@progbits .long 12 # Length of String Offsets Set .short 5 .short 0 .Lstr_offsets_base0: .section .debug_str,"MS",@progbits,1 .Lskel_string0: .asciz "build" # string offset=0 .Lskel_string1: .asciz "main.dwo" # string offset=45 .section .debug_str_offsets,"",@progbits .long .Lskel_string0 .long .Lskel_string1 .section .debug_str_offsets.dwo,"e",@progbits .long 56 # Length of String Offsets Set .short 5 .short 0 .section .debug_str.dwo,"eMS",@progbits,1 .Linfo_string0: .asciz "g" # string offset=0 .Linfo_string1: .asciz "build" # string offset=2 .Linfo_string2: .asciz "main.dwo" # string offset=47 .Linfo_string3: .asciz "int" # string offset=56 .Linfo_string4: .asciz "INFO" # string offset=60 .Linfo_string5: .asciz "WARNING" # string offset=65 .Linfo_string6: .asciz "ERROR" # string offset=73 .Linfo_string7: .asciz "CRITICAL" # string offset=79 .Linfo_string8: .asciz "DEBUG" # string offset=88 .Linfo_string9: .asciz "DebugType" # string offset=94 .Linfo_string10: .asciz "main" # string offset=104 .Linfo_string11: .asciz "clang version 22.0.0git" # string offset=109 .Linfo_string12: .asciz "main.cpp" # string offset=216 .section .debug_str_offsets.dwo,"e",@progbits .long 0 .long 2 .long 47 .long 56 .long 60 .long 65 .long 73 .long 79 .long 88 .long 94 .long 104 .long 109 .long 216 .section .debug_info.dwo,"e",@progbits .long .Ldebug_info_dwo_end1-.Ldebug_info_dwo_start1 # Length of Unit .Ldebug_info_dwo_start1: .short 5 # DWARF version number .byte 5 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long 0 # Offset Into Abbrev. Section .quad 9071746638605020729 .byte 5 # Abbrev [5] 0x14:0x2b DW_TAG_compile_unit .byte 11 # DW_AT_producer .short 33 # DW_AT_language .byte 12 # DW_AT_name .byte 2 # DW_AT_dwo_name .byte 6 # Abbrev [6] 0x1a:0x8 DW_TAG_variable .byte 0 # DW_AT_name .long 34 # DW_AT_type # DW_AT_external .byte 0 # DW_AT_decl_file .byte 7 # DW_AT_decl_line .byte 7 # Abbrev [7] 0x22:0x9 DW_TAG_enumeration_type # DW_AT_declaration .quad 2124196671656770956 # DW_AT_signature .byte 8 # Abbrev [8] 0x2b:0xf DW_TAG_subprogram .byte 0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 87 # DW_AT_call_all_calls .byte 10 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 9 # DW_AT_decl_line .long 58 # DW_AT_type # DW_AT_external .byte 4 # Abbrev [4] 0x3a:0x4 DW_TAG_base_type .byte 3 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_dwo_end1: .section .debug_abbrev.dwo,"e",@progbits .byte 1 # Abbreviation Code .byte 65 # DW_TAG_type_unit .byte 1 # DW_CHILDREN_yes .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 27 # DW_AT_comp_dir .byte 37 # DW_FORM_strx1 .byte 118 # DW_AT_dwo_name .byte 37 # DW_FORM_strx1 .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 2 # Abbreviation Code .byte 4 # DW_TAG_enumeration_type .byte 1 # DW_CHILDREN_yes .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 109 # DW_AT_enum_class .byte 25 # DW_FORM_flag_present .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 11 # DW_AT_byte_size .byte 11 # DW_FORM_data1 .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 3 # Abbreviation Code .byte 40 # DW_TAG_enumerator .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 28 # DW_AT_const_value .byte 13 # DW_FORM_sdata .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 4 # Abbreviation Code .byte 36 # DW_TAG_base_type .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 62 # DW_AT_encoding .byte 11 # DW_FORM_data1 .byte 11 # DW_AT_byte_size .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 5 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 37 # DW_AT_producer .byte 37 # DW_FORM_strx1 .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 118 # DW_AT_dwo_name .byte 37 # DW_FORM_strx1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 6 # Abbreviation Code .byte 52 # DW_TAG_variable .byte 0 # DW_CHILDREN_no .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 7 # Abbreviation Code .byte 4 # DW_TAG_enumeration_type .byte 0 # DW_CHILDREN_no .byte 60 # DW_AT_declaration .byte 25 # DW_FORM_flag_present .byte 105 # DW_AT_signature .byte 32 # DW_FORM_ref_sig8 .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 8 # Abbreviation Code .byte 46 # DW_TAG_subprogram .byte 0 # DW_CHILDREN_no .byte 17 # DW_AT_low_pc .byte 27 # DW_FORM_addrx .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 64 # DW_AT_frame_base .byte 24 # DW_FORM_exprloc .byte 122 # DW_AT_call_all_calls .byte 25 # DW_FORM_flag_present .byte 3 # DW_AT_name .byte 37 # DW_FORM_strx1 .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 73 # DW_AT_type .byte 19 # DW_FORM_ref4 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 0 # EOM(3) .section .debug_line.dwo,"e",@progbits .Ltmp1: .long .Ldebug_line_end0-.Ldebug_line_start0 # unit length .Ldebug_line_start0: .short 5 .byte 8 .byte 0 .long .Lprologue_end0-.Lprologue_start0 .Lprologue_start0: .byte 1 .byte 1 .byte 1 .byte -5 .byte 14 .byte 1 .byte 1 .byte 1 .byte 8 .byte 1 .ascii "build" .byte 0 .byte 3 .byte 1 .byte 8 .byte 2 .byte 15 .byte 5 .byte 30 .byte 1 .ascii "main.cpp" .byte 0 .byte 0 .byte 0xd1, 0x75, 0xf8, 0xd5 .byte 0x53, 0x73, 0x15, 0x7c .byte 0x7f, 0x54, 0x3d, 0xd9 .byte 0x1d, 0x3c, 0xa8, 0xb5 .Lprologue_end0: .Ldebug_line_end0: .section .debug_addr,"",@progbits .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution .Ldebug_addr_start0: .short 5 # DWARF version number .byte 8 # Address size .byte 0 # Segment selector size .Laddr_table_base0: .quad .Lfunc_begin0 .Ldebug_addr_end0: .section .debug_gnu_pubnames,"",@progbits .long .LpubNames_end0-.LpubNames_start0 # Length of Public Names Info .LpubNames_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 40 # Compilation Unit Length .long 20 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "INFO" # External Name .long 20 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "CRITICAL" # External Name .long 20 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "ERROR" # External Name .long 20 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "DEBUG" # External Name .long 20 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "WARNING" # External Name .long 26 # DIE offset .byte 32 # Attributes: VARIABLE, EXTERNAL .asciz "g" # External Name .long 43 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "main" # External Name .long 0 # End Mark .LpubNames_end0: .section .debug_gnu_pubtypes,"",@progbits .long .LpubTypes_end0-.LpubTypes_start0 # Length of Public Types Info .LpubTypes_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 40 # Compilation Unit Length .long 34 # DIE offset .byte 16 # Attributes: TYPE, EXTERNAL .asciz "DebugType" # External Name .long 58 # DIE offset .byte 144 # Attributes: TYPE, STATIC .asciz "int" # External Name .long 0 # End Mark .LpubTypes_end0: .ident "clang version 22.0.0" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: