ef82098a80
Summary: The only reason for this function's existance is so that we could pass the correct size into the DWARFExpression constructor. However, there is no harm in passing the entire data extractor into the DWARFExpression, since the same code is performing the size determination as well as the subsequent parse. So, if we get malformed input or there's a bug in the parser, we'd compute the wrong size anyway. Additionally, reducing the number of entry points into the location list parsing machinery makes it easier to switch the llvm debug_loc(lists) parsers. While inside, I added a couple of tests for invalid location list handling. Reviewers: JDevlieghere, clayborg Subscribers: aprantl, javed.absar, kristof.beyls, lldb-commits Differential Revision: https://reviews.llvm.org/D66789 llvm-svn: 370373
144 lines
6.3 KiB
ArmAsm
144 lines
6.3 KiB
ArmAsm
# Test debug_loc parsing, including the cases of invalid input. The exact
|
|
# behavior in the invalid cases is not particularly important, but it should be
|
|
# "reasonable".
|
|
|
|
# REQUIRES: x86
|
|
|
|
# RUN: llvm-mc -triple=x86_64-pc-linux -filetype=obj %s > %t
|
|
# RUN: %lldb %t -o "image lookup -v -a 0" -o "image lookup -v -a 2" -o exit \
|
|
# RUN: | FileCheck %s
|
|
|
|
# CHECK-LABEL: image lookup -v -a 0
|
|
# CHECK: Variable: {{.*}}, name = "x0", type = "int", location = rdi,
|
|
# CHECK: Variable: {{.*}}, name = "x1", type = "int", location = ,
|
|
# CHECK: Variable: {{.*}}, name = "x2", type = "int", location = ,
|
|
|
|
# CHECK-LABEL: image lookup -v -a 2
|
|
# CHECK: Variable: {{.*}}, name = "x0", type = "int", location = rax,
|
|
# CHECK: Variable: {{.*}}, name = "x1", type = "int", location = ,
|
|
# CHECK: Variable: {{.*}}, name = "x2", type = "int", location = ,
|
|
|
|
.type f,@function
|
|
f: # @f
|
|
.Lfunc_begin0:
|
|
movl %edi, %eax
|
|
.Ltmp0:
|
|
retq
|
|
.Ltmp1:
|
|
.Lfunc_end0:
|
|
.size f, .Lfunc_end0-f
|
|
|
|
.section .debug_str,"MS",@progbits,1
|
|
.Linfo_string0:
|
|
.asciz "Hand-written DWARF"
|
|
.Linfo_string3:
|
|
.asciz "f"
|
|
.Linfo_string4:
|
|
.asciz "int"
|
|
.Lx0:
|
|
.asciz "x0"
|
|
.Lx1:
|
|
.asciz "x1"
|
|
.Lx2:
|
|
.asciz "x2"
|
|
|
|
.section .debug_loc,"",@progbits
|
|
.Ldebug_loc0:
|
|
.quad .Lfunc_begin0-.Lfunc_begin0
|
|
.quad .Ltmp0-.Lfunc_begin0
|
|
.short 1 # Loc expr size
|
|
.byte 85 # super-register DW_OP_reg5
|
|
.quad .Ltmp0-.Lfunc_begin0
|
|
.quad .Lfunc_end0-.Lfunc_begin0
|
|
.short 1 # Loc expr size
|
|
.byte 80 # super-register DW_OP_reg0
|
|
.quad 0
|
|
.quad 0
|
|
.Ldebug_loc2:
|
|
.quad .Lfunc_begin0-.Lfunc_begin0
|
|
.quad .Lfunc_end0-.Lfunc_begin0
|
|
.short 0xdead # Loc expr size
|
|
|
|
.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 14 # DW_FORM_strp
|
|
.byte 19 # DW_AT_language
|
|
.byte 5 # DW_FORM_data2
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 2 # Abbreviation Code
|
|
.byte 46 # DW_TAG_subprogram
|
|
.byte 1 # DW_CHILDREN_yes
|
|
.byte 17 # DW_AT_low_pc
|
|
.byte 1 # DW_FORM_addr
|
|
.byte 18 # DW_AT_high_pc
|
|
.byte 6 # DW_FORM_data4
|
|
.byte 3 # DW_AT_name
|
|
.byte 14 # DW_FORM_strp
|
|
.byte 73 # DW_AT_type
|
|
.byte 19 # DW_FORM_ref4
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 3 # Abbreviation Code
|
|
.byte 5 # DW_TAG_formal_parameter
|
|
.byte 0 # DW_CHILDREN_no
|
|
.byte 2 # DW_AT_location
|
|
.byte 23 # DW_FORM_sec_offset
|
|
.byte 3 # DW_AT_name
|
|
.byte 14 # DW_FORM_strp
|
|
.byte 73 # DW_AT_type
|
|
.byte 19 # DW_FORM_ref4
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
.byte 4 # Abbreviation Code
|
|
.byte 36 # DW_TAG_base_type
|
|
.byte 0 # DW_CHILDREN_no
|
|
.byte 3 # DW_AT_name
|
|
.byte 14 # DW_FORM_strp
|
|
.byte 62 # DW_AT_encoding
|
|
.byte 11 # DW_FORM_data1
|
|
.byte 11 # DW_AT_byte_size
|
|
.byte 11 # DW_FORM_data1
|
|
.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 4 # DWARF version number
|
|
.long .debug_abbrev # Offset Into Abbrev. Section
|
|
.byte 8 # Address Size (in bytes)
|
|
.byte 1 # Abbrev [1] 0xb:0x50 DW_TAG_compile_unit
|
|
.long .Linfo_string0 # DW_AT_producer
|
|
.short 12 # DW_AT_language
|
|
.byte 2 # Abbrev [2] 0x2a:0x29 DW_TAG_subprogram
|
|
.quad .Lfunc_begin0 # DW_AT_low_pc
|
|
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
|
|
.long .Linfo_string3 # DW_AT_name
|
|
.long .Lint # DW_AT_type
|
|
.byte 3 # Abbrev [3] DW_TAG_formal_parameter
|
|
.long .Ldebug_loc0 # DW_AT_location
|
|
.long .Lx0 # DW_AT_name
|
|
.long .Lint-.Lcu_begin0 # DW_AT_type
|
|
.byte 3 # Abbrev [3] DW_TAG_formal_parameter
|
|
.long 0xdeadbeef # DW_AT_location
|
|
.long .Lx1 # DW_AT_name
|
|
.long .Lint-.Lcu_begin0 # DW_AT_type
|
|
.byte 3 # Abbrev [3] DW_TAG_formal_parameter
|
|
.long .Ldebug_loc2 # DW_AT_location
|
|
.long .Lx2 # DW_AT_name
|
|
.long .Lint-.Lcu_begin0 # DW_AT_type
|
|
.byte 0 # End Of Children Mark
|
|
.Lint:
|
|
.byte 4 # Abbrev [4] 0x53:0x7 DW_TAG_base_type
|
|
.long .Linfo_string4 # DW_AT_name
|
|
.byte 5 # DW_AT_encoding
|
|
.byte 4 # DW_AT_byte_size
|
|
.byte 0 # End Of Children Mark
|
|
.Ldebug_info_end0:
|