1fd0b41b44
The check is not correct for discontinuous functions, as one of the blocks could very well begin before the function entry point. To catch dead-stripped ranges, I check whether the functions is after the first known code address. I don't print any error in this case as that is a common/expected situation. This avoids many errors like: ``` error: ld-linux-x86-64.so.2 0x00085f3b: adding range [0x0000000000001ae8-0x0000000000001b07) which has a base that is less than the function's low PC 0x000000000001cfb0. Please file a bug and attach the file at the start of this error message ``` when debugging binaries on debian trixie because the dynamic linker (ld-linux) contains discontinuous functions. If the block ranges is not a subrange of the enclosing block then this will range will currently be added to the outer block as well (i.e., we get the same behavior that's currently possible for non-subrange blocks larger than function_low_pc). However, this code path is buggy and I'd like to change that (#117725).
168 lines
7.5 KiB
ArmAsm
168 lines
7.5 KiB
ArmAsm
## Test that inline function resolution works when the function has been split
|
|
## into multiple discontinuous parts (and those parts are placed in different
|
|
## sections)
|
|
|
|
# RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %s -o %t
|
|
# RUN: %lldb %t -o "image lookup -v -n look_me_up" -o exit | FileCheck %s
|
|
|
|
# CHECK: 1 match found in {{.*}}
|
|
# CHECK: Summary: {{.*}}`foo - 3 [inlined] foo_inl + 1
|
|
# CHECK-NEXT: {{.*}}`foo - 4
|
|
# CHECK: Blocks: id = {{.*}}, ranges = [0x00000000-0x00000004)[0x00000005-0x00000008)
|
|
# CHECK-NEXT: id = {{.*}}, ranges = [0x00000001-0x00000003)[0x00000006-0x00000007), name = "foo_inl"
|
|
|
|
.text
|
|
|
|
.section .text.__part1,"ax",@progbits
|
|
foo.__part.1:
|
|
nop
|
|
.Lfoo_inl.__part.1:
|
|
nop
|
|
.type look_me_up,@function
|
|
look_me_up:
|
|
nop
|
|
.Lfoo_inl.__part.1_end:
|
|
nop
|
|
.Lfoo.__part.1_end:
|
|
.size foo.__part.1, .Lfoo.__part.1_end-foo.__part.1
|
|
|
|
|
|
bar:
|
|
nop
|
|
.Lbar_end:
|
|
.size bar, .Lbar_end-bar
|
|
|
|
.type foo,@function
|
|
foo:
|
|
nop
|
|
.Lfoo_inl:
|
|
nop
|
|
.Lfoo_inl_end:
|
|
nop
|
|
.Lfoo_end:
|
|
.size foo, .Lfoo_end-foo
|
|
|
|
.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 8 # DW_FORM_string
|
|
.byte 19 # DW_AT_language
|
|
.byte 5 # DW_FORM_data2
|
|
.byte 17 # DW_AT_low_pc
|
|
.byte 1 # DW_FORM_addr
|
|
.byte 85 # DW_AT_ranges
|
|
.byte 35 # DW_FORM_rnglistx
|
|
.byte 116 # DW_AT_rnglists_base
|
|
.byte 23 # DW_FORM_sec_offset
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 2 # Abbreviation Code
|
|
.byte 46 # DW_TAG_subprogram
|
|
.byte 0 # DW_CHILDREN_no
|
|
.byte 3 # DW_AT_name
|
|
.byte 8 # DW_FORM_string
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 3 # Abbreviation Code
|
|
.byte 46 # DW_TAG_subprogram
|
|
.byte 1 # DW_CHILDREN_yes
|
|
.byte 85 # DW_AT_ranges
|
|
.byte 35 # DW_FORM_rnglistx
|
|
.byte 3 # DW_AT_name
|
|
.byte 8 # DW_FORM_string
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 4 # Abbreviation Code
|
|
.byte 29 # DW_TAG_inlined_subroutine
|
|
.byte 0 # DW_CHILDREN_no
|
|
.byte 85 # DW_AT_ranges
|
|
.byte 35 # DW_FORM_rnglistx
|
|
.byte 49 # DW_AT_abstract_origin
|
|
.byte 19 # DW_FORM_ref4
|
|
.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 5 # DWARF version number
|
|
.byte 1 # DWARF Unit Type
|
|
.byte 8 # Address Size (in bytes)
|
|
.long .debug_abbrev # Offset Into Abbrev. Section
|
|
.byte 1 # Abbrev DW_TAG_compile_unit
|
|
.asciz "Hand-written DWARF" # DW_AT_producer
|
|
.short 29 # DW_AT_language
|
|
.quad 0 # DW_AT_low_pc
|
|
.byte 1 # DW_AT_ranges
|
|
.long .Lrnglists_table_base0 # DW_AT_rnglists_base
|
|
|
|
.byte 3 # Abbrev DW_TAG_subprogram
|
|
.byte 2 # DW_AT_ranges
|
|
.asciz "bar" # DW_AT_name
|
|
.byte 0 # End Of Children Mark
|
|
|
|
.Lfoo_inl_die:
|
|
.byte 2 # Abbrev DW_TAG_subprogram
|
|
.asciz "foo_inl" # DW_AT_name
|
|
|
|
.byte 3 # Abbrev DW_TAG_subprogram
|
|
.byte 0 # DW_AT_ranges
|
|
.asciz "foo" # DW_AT_name
|
|
.byte 4 # Abbrev DW_TAG_inlined_subroutine
|
|
.byte 3 # DW_AT_ranges
|
|
.long .Lfoo_inl_die-.Lcu_begin0 # DW_AT_abstract_origin
|
|
.byte 0 # End Of Children Mark
|
|
|
|
.byte 0 # End Of Children Mark
|
|
.Ldebug_info_end0:
|
|
|
|
.section .debug_rnglists,"",@progbits
|
|
.long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
|
|
.Ldebug_list_header_start0:
|
|
.short 5 # Version
|
|
.byte 8 # Address size
|
|
.byte 0 # Segment selector size
|
|
.long 4 # Offset entry count
|
|
.Lrnglists_table_base0:
|
|
.long .Ldebug_ranges0-.Lrnglists_table_base0
|
|
.long .Ldebug_ranges1-.Lrnglists_table_base0
|
|
.long .Ldebug_ranges2-.Lrnglists_table_base0
|
|
.long .Ldebug_ranges3-.Lrnglists_table_base0
|
|
.Ldebug_ranges0:
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad foo
|
|
.quad .Lfoo_end
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad foo.__part.1
|
|
.quad .Lfoo.__part.1_end
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_ranges1:
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad bar
|
|
.quad .Lbar_end
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad foo.__part.1
|
|
.quad .Lfoo.__part.1_end
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad foo
|
|
.quad .Lfoo_end
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_ranges2:
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad bar
|
|
.quad .Lbar_end
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_ranges3:
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad .Lfoo_inl
|
|
.quad .Lfoo_inl_end
|
|
.byte 6 # DW_RLE_start_end
|
|
.quad .Lfoo_inl.__part.1
|
|
.quad .Lfoo_inl.__part.1_end
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_list_header_end0:
|