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Give a warning when no dwo files are provided #94336

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218 changes: 218 additions & 0 deletions llvm/test/tools/llvm-dwp/Inputs/empty_warning/non_split.s
Original file line number Diff line number Diff line change
@@ -0,0 +1,218 @@
# Note: This file is compiled from the following code, for
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small nit. I think it's now ##

# the purpose of creating an non split-dwarf binary.
#
# clang -g -S -gdwarf-4 main.c
#
#include <stdio.h>
#int main() {
# printf("hello\n");
# return 0;
#}

.text
.file "main.c"
.file 1 "/xxx/xxx" "main.c"
.globl main # -- Begin function main
.p2align 4, 0x90
.type main,@function
main: # @main
.Lfunc_begin0:
.loc 1 3 0 # main.c:3:0
.cfi_startproc
# %bb.0: # %entry
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset %rbp, -16
movq %rsp, %rbp
.cfi_def_cfa_register %rbp
subq $16, %rsp
movl $0, -4(%rbp)
.Ltmp0:
.loc 1 4 5 prologue_end # main.c:4:5
leaq .L.str(%rip), %rdi
movb $0, %al
callq printf@PLT
.loc 1 5 5 # main.c:5:5
xorl %eax, %eax
.loc 1 5 5 epilogue_begin is_stmt 0 # main.c:5:5
addq $16, %rsp
popq %rbp
.cfi_def_cfa %rsp, 8
retq
.Ltmp1:
.Lfunc_end0:
.size main, .Lfunc_end0-main
.cfi_endproc
# -- End function
.type .L.str,@object # @.str
.section .rodata.str1.1,"aMS",@progbits,1
.L.str:
.asciz "hello\n"
.size .L.str, 7

.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 1 # DW_CHILDREN_yes
.byte 37 # DW_AT_producer
.byte 14 # DW_FORM_strp
.byte 19 # DW_AT_language
.byte 5 # DW_FORM_data2
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 16 # DW_AT_stmt_list
.byte 23 # DW_FORM_sec_offset
.byte 27 # DW_AT_comp_dir
.byte 14 # DW_FORM_strp
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 2 # Abbreviation Code
.byte 52 # DW_TAG_variable
.byte 0 # DW_CHILDREN_no
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 3 # Abbreviation Code
.byte 1 # DW_TAG_array_type
.byte 1 # DW_CHILDREN_yes
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 4 # Abbreviation Code
.byte 33 # DW_TAG_subrange_type
.byte 0 # DW_CHILDREN_no
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 55 # DW_AT_count
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 5 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.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 6 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 62 # DW_AT_encoding
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 7 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 0 # DW_CHILDREN_no
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 64 # DW_AT_frame_base
.byte 24 # DW_FORM_exprloc
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.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_info,"",@progbits
.Lcu_begin0:
.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
.short 4 # DWARF version number
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] 0xb:0x6b DW_TAG_compile_unit
.long .Linfo_string0 # DW_AT_producer
.short 29 # DW_AT_language
.long .Linfo_string1 # DW_AT_name
.long .Lline_table_start0 # DW_AT_stmt_list
.long .Linfo_string2 # DW_AT_comp_dir
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 2 # Abbrev [2] 0x2a:0x11 DW_TAG_variable
.long 59 # DW_AT_type
.byte 1 # DW_AT_decl_file
.byte 4 # DW_AT_decl_line
.byte 9 # DW_AT_location
.byte 3
.quad .L.str
.byte 3 # Abbrev [3] 0x3b:0xc DW_TAG_array_type
.long 71 # DW_AT_type
.byte 4 # Abbrev [4] 0x40:0x6 DW_TAG_subrange_type
.long 78 # DW_AT_type
.byte 7 # DW_AT_count
.byte 0 # End Of Children Mark
.byte 5 # Abbrev [5] 0x47:0x7 DW_TAG_base_type
.long .Linfo_string3 # DW_AT_name
.byte 6 # DW_AT_encoding
.byte 1 # DW_AT_byte_size
.byte 6 # Abbrev [6] 0x4e:0x7 DW_TAG_base_type
.long .Linfo_string4 # DW_AT_name
.byte 8 # DW_AT_byte_size
.byte 7 # DW_AT_encoding
.byte 7 # Abbrev [7] 0x55:0x19 DW_TAG_subprogram
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 86
.long .Linfo_string5 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 3 # DW_AT_decl_line
.long 110 # DW_AT_type
# DW_AT_external
.byte 5 # Abbrev [5] 0x6e:0x7 DW_TAG_base_type
.long .Linfo_string6 # DW_AT_name
.byte 5 # DW_AT_encoding
.byte 4 # DW_AT_byte_size
.byte 0 # End Of Children Mark
.Ldebug_info_end0:
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "clang version 19.0.0git" # string offset=0
.Linfo_string1:
.asciz "main.c" # string offset=24
.Linfo_string2:
.asciz "xxx/xxx" # string offset=31
.Linfo_string3:
.asciz "char" # string offset=95
.Linfo_string4:
.asciz "__ARRAY_SIZE_TYPE__" # string offset=100
.Linfo_string5:
.asciz "main" # string offset=120
.Linfo_string6:
.asciz "int" # string offset=125
.ident "clang version 19.0.0git"
.section ".note.GNU-stack","",@progbits
.addrsig
.addrsig_sym printf
.section .debug_line,"",@progbits
.Lline_table_start0:
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