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2e9ea7ed91
Patch improves next things: * Fixes assert/crash in getOpDesc when giving it a invalid expression op code. * DWARFExpression::print() called DWARFExpression::Operation::getEndOffset() which returned and used uninitialized field EndOffset. Patch fixes that. * Teaches verifier to verify DW_AT_location and error out on broken expressions. Differential revision: https://reviews.llvm.org/D39294 llvm-svn: 316756
53 lines
1.4 KiB
ArmAsm
53 lines
1.4 KiB
ArmAsm
# RUN: llvm-mc %s -filetype obj -triple i686-pc-linux -o %t
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## Check we don't crash when parsing invalid expression opcode.
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# RUN: llvm-dwarfdump %t | FileCheck %s
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# CHECK: DW_TAG_GNU_call_site_parameter
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# CHECK-NEXT: DW_AT_location (<decoding error>)
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## Check verifier reports an error.
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# RUN: not llvm-dwarfdump -verify %t 2>&1 | FileCheck %s --check-prefix=VERIFY
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# VERIFY: DIE contains invalid DWARF expression:
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# VERIFY: DW_TAG_GNU_call_site_parameter
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# VERIFY-NEXT: DW_AT_location (<decoding error>)
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.section .debug_info,"",@progbits
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.long 0x12
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.value 0x4
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.long 0
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.byte 0x4
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.uleb128 0x1 # DW_TAG_compile_unit [1]
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.long 0
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.byte 0x0
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.uleb128 0x2 # DW_TAG_GNU_call_site_parameter [2]
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.uleb128 0x1 # Expression size.
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.byte 0xff # Broken expression.
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.byte 0 # End mark.
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.byte 0 # End mark.
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.section .debug_abbrev,"",@progbits
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.uleb128 0x1 # ID [1]
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.uleb128 0x11 # DW_TAG_compile_unit, DW_CHILDREN_yes
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.byte 0x1
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.uleb128 0x25 # DW_AT_producer, DW_FORM_strp
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.uleb128 0xe
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.uleb128 0x13 # DW_AT_language, DW_FORM_data1
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.uleb128 0xb
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.byte 0
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.byte 0
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.uleb128 0x2 # ID [2]
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.uleb128 0x410a # DW_TAG_GNU_call_site_parameter, DW_CHILDREN_no
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.byte 0
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.uleb128 0x2 # DW_AT_location, DW_FORM_exprloc
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.uleb128 0x18
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.byte 0
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.byte 0
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.byte 0
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.section .debug_str,"MS",@progbits,1
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.string "test"
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