119 lines
4.6 KiB
ArmAsm
119 lines
4.6 KiB
ArmAsm
|
## This test checks that looking up a zero hash in the .debug_cu_index hash
|
||
|
|
## table works correctly when there's no CU with signature = 0.
|
||
|
|
##
|
||
|
|
## LLVM used to check just the signature bits to decide if the hash lookup ended
|
||
|
|
## at a match or at an empty slot. This is wrong when signature = 0 because
|
||
|
|
## empty slots have all zeros in the signature field too, and LLVM would return
|
||
|
|
## the empty slot as a valid result.
|
||
|
|
|
||
|
|
# REQUIRES: x86-registered-target
|
||
|
|
|
||
|
|
# RUN: llvm-mc --filetype=obj --triple x86_64 %s -o %t --defsym MAIN=0
|
||
|
|
# RUN: llvm-mc --filetype=obj --triple x86_64 %s -o %t.dwp
|
||
|
|
# RUN: llvm-symbolizer --obj=%t --dwp=%t.dwp 0x0 | FileCheck %s
|
||
|
|
|
||
|
|
## This expected output is very uninteresting, but it's better than a crash.
|
||
|
|
# CHECK: ??:0:0
|
||
|
|
|
||
|
|
.section .debug_abbrev,"",@progbits
|
||
|
|
.byte 1 # Abbreviation Code
|
||
|
|
.byte 17 # DW_TAG_compile_unit
|
||
|
|
.byte 0 # DW_CHILDREN_no
|
||
|
|
.ascii "\260B" # DW_AT_GNU_dwo_name
|
||
|
|
.byte 8 # DW_FORM_string
|
||
|
|
.ascii "\261B" # DW_AT_GNU_dwo_id
|
||
|
|
.byte 7 # DW_FORM_data8
|
||
|
|
.ascii "\263B" # DW_AT_GNU_addr_base
|
||
|
|
.byte 23 # DW_FORM_sec_offset
|
||
|
|
.byte 85 # DW_AT_ranges
|
||
|
|
.byte 23 # DW_FORM_sec_offset
|
||
|
|
.byte 0 # EOM(1)
|
||
|
|
.byte 0 # EOM(2)
|
||
|
|
.byte 0 # EOM(3)
|
||
|
|
|
||
|
|
## Create two CUs, with dwo_ids 0 and 1 respectively.
|
||
|
|
.ifdef MAIN
|
||
|
|
.irpc I,01
|
||
|
|
.data
|
||
|
|
A\I:
|
||
|
|
.long \I
|
||
|
|
|
||
|
|
.text
|
||
|
|
F\I:
|
||
|
|
nop
|
||
|
|
|
||
|
|
.section .debug_info,"",@progbits
|
||
|
|
.Lcu_begin\I:
|
||
|
|
.long .Ldebug_info_end\I-.Ldebug_info_start\I # Length of Unit
|
||
|
|
.Ldebug_info_start\I:
|
||
|
|
.short 4 # DWARF version number
|
||
|
|
.long .debug_abbrev # Offset Into Abbrev. Section
|
||
|
|
.byte 8 # Address Size (in bytes)
|
||
|
|
.byte 1 # Abbrev [1] 0xb:0x25 DW_TAG_compile_unit
|
||
|
|
.asciz "A.dwo" # DW_AT_GNU_dwo_name
|
||
|
|
.quad \I # DW_AT_GNU_dwo_id
|
||
|
|
.long .debug_addr # DW_AT_GNU_addr_base
|
||
|
|
.long .Lranges\I # DW_AT_ranges
|
||
|
|
.Ldebug_info_end\I:
|
||
|
|
|
||
|
|
.section .debug_addr,"",@progbits
|
||
|
|
.quad A\I
|
||
|
|
.quad F\I
|
||
|
|
|
||
|
|
.section .debug_ranges,"",@progbits
|
||
|
|
.Lranges\I:
|
||
|
|
.quad F\I
|
||
|
|
.quad F\I+1
|
||
|
|
.quad 0
|
||
|
|
.quad 0
|
||
|
|
.endr
|
||
|
|
.else
|
||
|
|
## Deliberately omit compile unit 0 in the DWP. We want to check the case where
|
||
|
|
## a signature = 0 matches an empty hash slot in .debug_cu_index and the index
|
||
|
|
## in the parallel table has to be checked.
|
||
|
|
.section .debug_abbrev.dwo,"e",@progbits
|
||
|
|
.Labbrev1:
|
||
|
|
.byte 1 # Abbreviation Code
|
||
|
|
.byte 17 # DW_TAG_compile_unit
|
||
|
|
.byte 0 # DW_CHILDREN_no
|
||
|
|
.byte 37 # DW_AT_producer
|
||
|
|
.byte 8 # DW_FORM_string
|
||
|
|
.byte 3 # DW_AT_name
|
||
|
|
.byte 8 # DW_FORM_string
|
||
|
|
.byte 0 # EOM(1)
|
||
|
|
.byte 0 # EOM(2)
|
||
|
|
.byte 0 # EOM(3)
|
||
|
|
.Labbrev_end1:
|
||
|
|
|
||
|
|
.section .debug_info.dwo,"e",@progbits
|
||
|
|
.Lcu_begin1:
|
||
|
|
.long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit
|
||
|
|
.Ldebug_info_start1:
|
||
|
|
.short 4 # DWARF version number
|
||
|
|
.long 0 # Offset Into Abbrev. Section
|
||
|
|
.byte 8 # Address Size (in bytes)
|
||
|
|
.byte 1 # Abbrev DW_TAG_compile_unit
|
||
|
|
.asciz "Hand-written DWARF" # DW_AT_producer
|
||
|
|
.byte '1', '.', 'c', 0 # DW_AT_name
|
||
|
|
.Ldebug_info_end1:
|
||
|
|
|
||
|
|
.section .debug_cu_index,"",@progbits
|
||
|
|
.long 2 # DWARF version number
|
||
|
|
.long 2 # Section count
|
||
|
|
.long 1 # Unit count
|
||
|
|
.long 8 # Slot count
|
||
|
|
|
||
|
|
.quad 1, 0, 0, 0, 0, 0, 0, 0 # Hash table
|
||
|
|
.long 1, 0, 0, 0, 0, 0, 0, 0 # Index table
|
||
|
|
|
||
|
|
.long 1 # DW_SECT_INFO
|
||
|
|
.long 3 # DW_SECT_ABBREV
|
||
|
|
|
||
|
|
.long .Lcu_begin1-.debug_info.dwo
|
||
|
|
.long .Labbrev1-.debug_abbrev.dwo
|
||
|
|
|
||
|
|
.long .Ldebug_info_end1-.Lcu_begin1
|
||
|
|
.long .Labbrev_end1-.Labbrev1
|
||
|
|
|
||
|
|
.endif
|