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dwarfdump-rnglists.s
206 lines (192 loc) · 8.83 KB
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dwarfdump-rnglists.s
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# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
# RUN: not llvm-dwarfdump -v -debug-info %t.o 2> %t.err | FileCheck %s
# RUN: FileCheck %s --input-file %t.err --check-prefix=ERR --implicit-check-not=error
# RUN: not llvm-dwarfdump -lookup 10 %t.o 2> %t2.err
# RUN: FileCheck %s --input-file %t2.err --check-prefix=ERR --implicit-check-not=error
# 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,"e",@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,"e",@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
.quad 0xdeadbeefbaadf00d # DWO id
# 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,"e",@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 = 0x00000024
# 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 = 0x00000015
# CHECK-NEXT: [0x0000002a, 0x00000034))
#ERR: error: decoding address ranges: invalid range list offset 0xfa0