# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o # RUN: llvm-dwarfdump -v -debug-info %t.o 2> %t.err | FileCheck %s # RUN: FileCheck %s --input-file %t.err --check-prefix=ERR # RUN: llvm-dwarfdump -lookup 10 %t.o 2> %t2.err # RUN: FileCheck %s --input-file %t2.err --check-prefix=ERR # Test object to verify dwarfdump handles v5 range lists. # We use very simplified compile unit dies. # There are 2 full CUs with DW_AT_rnglists_base, one with a DW_AT_ranges # attribute using DW_FORM_sec_offset, the other with DW_AT_ranges using # DW_FORM_rnglistx. .section .debug_abbrev,"",@progbits .byte 0x01 # Abbrev code .byte 0x11 # DW_TAG_compile_unit .byte 0x00 # DW_CHILDREN_no .byte 0x74 # DW_AT_rnglists_base .byte 0x17 # DW_FORM_sec_offset .byte 0x55 # DW_AT_ranges .byte 0x17 # DW_FORM_sec_offset .byte 0x00 # EOM(1) .byte 0x00 # EOM(2) .byte 0x02 # Abbrev code .byte 0x11 # DW_TAG_compile_unit .byte 0x00 # DW_CHILDREN_no .byte 0x74 # DW_AT_rnglists_base .byte 0x17 # DW_FORM_sec_offset .byte 0x55 # DW_AT_ranges .byte 0x23 # DW_FORM_rnglistx .byte 0x00 # EOM(1) .byte 0x00 # EOM(2) .byte 0x00 # EOM(3) # The split CU uses DW_FORM_rnglistx (the only correct option). # There is no DW_AT_rnglists_base in split units. .section .debug_abbrev.dwo,"",@progbits .byte 0x01 # Abbrev code .byte 0x11 # DW_TAG_compile_unit .byte 0x00 # DW_CHILDREN_no .byte 0x55 # DW_AT_ranges .byte 0x23 # DW_FORM_rnglistx .byte 0x00 # EOM(1) .byte 0x00 # EOM(2) .byte 0x00 # EOM(3) .section .debug_info,"",@progbits .long CU1_5_end-CU1_5_version # Length of Unit CU1_5_version: .short 5 # DWARF version number .byte 1 # DWARF Unit Type .byte 4 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section # The compile-unit DIE, which has DW_AT_rnglists_base and DW_AT_ranges. .byte 1 # Abbreviation code .long Rnglist_Table0_base # DW_AT_rnglists_base .long Rnglist_Table0_Rnglist0 # DW_AT_ranges .byte 0 # NULL .byte 0 # NULL CU1_5_end: .long CU2_5_end-CU2_5_version # Length of Unit CU2_5_version: .short 5 # DWARF version number .byte 1 # DWARF Unit Type .byte 4 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section # The compile-unit DIE, which has DW_AT_rnglists_base and DW_AT_ranges. .byte 2 # Abbreviation code .long Rnglist_Table0_base # DW_AT_rnglists_base .uleb128 1 # DW_AT_ranges .byte 0 # NULL CU2_5_end: # A CU with an invalid DW_AT_rnglists_base attribute .long CU3_5_end-CU3_5_version # Length of Unit CU3_5_version: .short 5 # DWARF version number .byte 1 # DWARF Unit Type .byte 4 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section # The compile-unit DIE, which has DW_AT_rnglists_base and DW_AT_ranges. .byte 2 # Abbreviation code .long 0x8 # DW_AT_rnglists_base .long 0 # DW_AT_ranges .byte 0 # NULL CU3_5_end: # A CU DIE with an incorrect DW_AT_ranges attribute .long CU4_5_end-CU4_5_version # Length of Unit CU4_5_version: .short 5 # DWARF version number .byte 1 # DWARF Unit Type .byte 4 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section # The compile-unit DIE, which has DW_AT_rnglists_base and DW_AT_ranges. .byte 1 # Abbreviation code .long Rnglist_Table0_base # DW_AT_rnglists_base .long 4000 # DW_AT_ranges .byte 0 # NULL CU4_5_end: .section .debug_info.dwo,"",@progbits # DWARF v5 split CU header. .long CU_split_5_end-CU_split_5_version # Length of Unit CU_split_5_version: .short 5 # DWARF version number .byte 5 # DWARF Unit Type .byte 4 # Address Size (in bytes) .long 0 # Offset Into Abbrev Section # The compile-unit DIE, which has DW_AT_rnglists_base and DW_AT_ranges. .byte 1 # Abbreviation code .uleb128 1 # DW_AT_ranges .byte 0 # NULL CU_split_5_end: .section .debug_rnglists,"",@progbits # A rnglist table with 2 range lists. The first one uses DW_RLE_start_end # and DW_RLE_start_length. The second one uses DW_RLE_base_address and # DW_RLE_offset_pair. The range lists have entries in the offset table. .long Rnglist_Table0_end - Rnglist_Table0 # table length Rnglist_Table0: .short 5 # version .byte 4 # address size .byte 0 # segment selector size .long 2 # offset entry count Rnglist_Table0_base: # 2 offset entries which can be used by DW_FORM_rnglistx. .long Rnglist_Table0_Rnglist0 - Rnglist_Table0_base .long Rnglist_Table0_Rnglist1 - Rnglist_Table0_base Rnglist_Table0_Rnglist0: .byte 6 # DW_RLE_start_end .long Range0_start .long Range0_end .byte 7 # DW_RLE_start_length .long Range1_start .uleb128 Range1_end - Range1_start .byte 0 # DW_RLE_end_of_list Rnglist_Table0_Rnglist1: .byte 5 # DW_RLE_base_address .long Range0_start .byte 4 # DW_RLE_offset_pair .uleb128 Range1_start - Range0_start .uleb128 Range1_end - Range0_start .byte 0 # DW_RLE_end_of_list Rnglist_Table0_end: # A rnglist table for the split unit with an empty rangelist and one that # uses DW_RLE_base_address and DW_RLE_offset_pair. The ranges have entries # in the offset table. We use the empty range list so we can test # DW_FORM_rnglistx with an index other than 0. .section .debug_rnglists.dwo,"",@progbits .long Rnglist_Table0_dwo_end - Rnglist_Table0_dwo # table length Rnglist_Table0_dwo: .short 5 # version .byte 4 # address size .byte 0 # segment selector size .long 2 # offset entry count Rnglist_Table0_base_dwo: # 2 offset entries which can be used by DW_FORM_rnglistx. .long Rnglist_Table0_Rnglist0_dwo - Rnglist_Table0_base_dwo .long Rnglist_Table0_Rnglist1_dwo - Rnglist_Table0_base_dwo Rnglist_Table0_Rnglist0_dwo: .byte 0 # DW_RLE_start_end Rnglist_Table0_Rnglist1_dwo: .byte 5 # DW_RLE_base_address .long Range0_start - .text .byte 4 # DW_RLE_offset_pair .uleb128 Range1_start - Range0_start .uleb128 Range1_end - Range0_start .byte 0 # DW_RLE_end_of_list Rnglist_Table0_dwo_end: .text .space 20 Range0_start: # Range0: 0x14 - 0x1c .space 10 Range0_end: .space 12 Range1_start: # Range1: 0x2a - 0x34 .space 10 Range1_end: # CHECK: .debug_info contents: # CHECK: Compile Unit: # CHECK-NOT: Compile Unit: # CHECK: DW_TAG_compile_unit # CHECK-NEXT: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) # CHECK-NEXT: DW_AT_ranges [DW_FORM_sec_offset] (0x00000014 # CHECK-NEXT: [0x00000014, 0x0000001e) ".text" # CHECK-NEXT: [0x0000002a, 0x00000034) ".text") # CHECK: Compile Unit: # CHECK-NOT: Compile Unit: # CHECK: DW_TAG_compile_unit # CHECK-NEXT: DW_AT_rnglists_base [DW_FORM_sec_offset] (0x0000000c) # CHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x1) rangelist = 0x00000018 # CHECK-NEXT: [0x0000002a, 0x00000034) ".text") # CHECK: .debug_info.dwo contents: # CHECK: Compile Unit: # CHECK-NOT: contents: # CHECK: DW_TAG_compile_unit # CHECK-NEXT: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x1) rangelist = 0x00000009 # CHECK-NEXT: [0x0000002a, 0x00000034)) #ERR: error: parsing a range list table: Did not detect a valid range list table with base = 0x8 #ERR: error: decoding address ranges: missing or invalid range list table #ERR: error: decoding address ranges: invalid range list offset 0xfa0