derek.holloway
7502bf64a4
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144 lines
7.8 KiB
ArmAsm
144 lines
7.8 KiB
ArmAsm
## Test the "--skip-line-zero" option.
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##
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## This test uses handcrafted assembly to produce the following line table:
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## Address Line Column File ISA Discriminator OpIndex Flags
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## ------------------ ------ ------ ------ --- ------------- ------- -------------
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## 0x0000000000001710 1 0 1 0 0 0
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## 0x0000000000001714 0 0 1 0 0 0
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## 0x0000000000001719 1 2 1 0 0 0
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## 0x000000000000171b 1 2 1 0 0 0 end_sequence
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## 0x00000000000016c0 0 0 1 0 0 0
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## 0x00000000000016cf 2 0 1 0 0 0
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## 0x00000000000016d4 0 0 1 0 0 0
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## 0x00000000000016d9 0 0 1 0 0 0
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## 0x00000000000016df 0 0 1 0 0 0 end_sequence
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# REQUIRES: x86-registered-target
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# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
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## Check that without '--skip-line-zero', line zero is displayed for a line-table entry which has no source correspondence.
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# RUN: llvm-symbolizer --obj=%t.o -f=none 0x16d4 | FileCheck --strict-whitespace --match-full-lines --check-prefix=DISABLE %s
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# DISABLE:main.c:0:0
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## Check that the '--skip-line-zero' does not cross sequence boundaries.
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## If it fails to find in the current sequence then line zero is returned for the queried address.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x16c0 | FileCheck --strict-whitespace --match-full-lines --check-prefix=FAIL-ACROSS-SEQ %s
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# FAIL-ACROSS-SEQ:main.c:0:0
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## Check that with '--skip-line-zero', the last non-zero line in the current sequence is displayed.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x1717 | FileCheck --strict-whitespace --match-full-lines --check-prefix=WITHIN-SEQ %s
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# WITHIN-SEQ:main.c:1:0 (approximate)
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## Check that with '--skip-line-zero', multiple line zero rows are skipped within the current sequence.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x16d9 | FileCheck --strict-whitespace --match-full-lines --check-prefix=MULTIPLE-ROWS %s
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# MULTIPLE-ROWS:main.c:2:0 (approximate)
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## Check that '--skip-line-zero' only affects the line zero addresses when more than one address is specified.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x16d4 0x1719 | FileCheck --strict-whitespace --match-full-lines --check-prefixes=ENABLE,NO-APPROX %s
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# ENABLE:main.c:2:0 (approximate)
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# NO-APPROX:main.c:1:2
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## Check to ensure that '--skip-line-zero' with '--verbose' enabled displays approximate flag in verbose ouptut.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero --verbose 0x1717 | FileCheck --strict-whitespace --match-full-lines --check-prefix=VERBOSE %s
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# VERBOSE: Filename: main.c
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# VERBOSE-NEXT: Line: 1
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# VERBOSE-NEXT: Column: 0
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# VERBOSE-NEXT: Approximate: true
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## Check to ensure that '--skip-line-zero' with '--output-style=JSON' displays approximate flag in JSON output.
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# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero --output-style=JSON 0x1717 | FileCheck --strict-whitespace --match-full-lines --check-prefix=JSON %s
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# JSON:[{"Address":"0x1717","ModuleName":"{{.*}}{{[/|\]+}}skip-line-zero.s{{.*}}","Symbol":[{"Approximate":true,"Column":0,"Discriminator":0,"FileName":"main.c","FunctionName":"","Line":1,"StartAddress":"","StartFileName":"","StartLine":0}]}]
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## main.c
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## __attribute__((section("def"))) int foo() { return 1234; }
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## int main(void) { return foo()+5678; }
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##
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## Generated using
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## clang -S -gdwarf-4 --target=x86_64-pc-linux -fdebug-prefix-map=/tmp="" main.c -o main.s
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##
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## Sections belonging to code segment(.text) are removed. Sections related to debug information(other than .debug_line) are modified. Section .debug_line is handwritten. Section .debug_str is deleted.
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 0 # DW_CHILDREN_no
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.byte 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 85 # DW_AT_ranges
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.byte 23 # DW_FORM_sec_offset
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
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.Ldebug_info_start0:
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0x55 DW_TAG_compile_unit
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.long .Lline_table_start0 # DW_AT_stmt_list
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.quad 0 # DW_AT_low_pc
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.long .Ldebug_ranges0 # DW_AT_ranges
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_ranges,"",@progbits
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.Ldebug_ranges0:
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.quad 0x1710 #.Lfunc_begin0
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.quad 0x171b #.Lfunc_end0
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.quad 0x16c0 #.Lfunc_begin1
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.quad 0x16df #.Lfunc_end1
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.quad 0
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.quad 0
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.section .debug_line,"",@progbits
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.Lline_table_start0:
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.long .Lunit_end - .Lunit_start # unit length
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.Lunit_start:
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.short 4 # version
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.long .Lprologue_end - .Lprologue_start # header length
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.Lprologue_start:
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.byte 1 # minimum_instruction_length
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.byte 1 # maximum_operations_per_instruction
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.byte 0 # default_is_stmt
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.byte -5 # line_base
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.byte 14 # line_range
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.byte 13 # opcode_base
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.byte 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1 # arguments in standard opcodes
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.byte 0 # end of include directories
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.asciz "main.c" # filename
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.byte 0 # directory index
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.byte 0 # modification time
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.byte 0 # length of file (unavailable)
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.byte 0 # end of filenames
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.Lprologue_end:
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.byte 0x00, 9, 2 # DW_LNE_set_address
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.quad 0x1710 # Address Value
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.byte 0x01 # DW_LNS_copy
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.byte 0x49 # (address += 4, line += -1, op-index += 0)
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.byte 0x05, 2 # DW_LNS_set_column (2)
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.byte 0x59 # (address += 5, line += 1, op-index += 0)
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.byte 0x02 # DW_LNS_advance_pc
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.uleb128 0x02 # (addr += 2, op-index += 0)
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.byte 0x00, 1, 1 # DW_LNE_end_sequence
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.byte 0x00, 9, 2 # DW_LNE_set_address
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.quad 0x16c0 # Address Value
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.byte 0x11 # (address += 0, line += -1, op-index += 0)
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.byte 0xe6 # (address += 15, line += 2, op-index += 0)
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.byte 0x56 # (address += 5, line += -2, op-index += 0)
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.byte 0x58 # (address += 5, line += 0, op-index += 0)
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.byte 0x02 # DW_LNS_advance_pc
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.uleb128 0x06 # (addr += 6, op-index += 0)
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.byte 0x00, 1, 1 # DW_LNE_end_sequence
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.Lunit_end:
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