diff options
| -rw-r--r-- | lld/ELF/InputFiles.cpp | 2 | ||||
| -rw-r--r-- | lld/test/ELF/Inputs/undef-bad-debug.s | 44 | ||||
| -rw-r--r-- | lld/test/ELF/undef.s | 8 |
3 files changed, 52 insertions, 2 deletions
diff --git a/lld/ELF/InputFiles.cpp b/lld/ELF/InputFiles.cpp index 04034aee4fa..3b1448ab8cc 100644 --- a/lld/ELF/InputFiles.cpp +++ b/lld/ELF/InputFiles.cpp @@ -126,6 +126,8 @@ template <class ELFT> void ObjFile<ELFT>::initializeDwarf() { // CU (object file), so offset is always 0. const DWARFDebugLine::LineTable *LT = DwarfLine->getOrParseLineTable(LineData, 0, Dwarf, nullptr); + if (!LT) + return; // Return if there is no debug information about CU available. if (!Dwarf.getNumCompileUnits()) diff --git a/lld/test/ELF/Inputs/undef-bad-debug.s b/lld/test/ELF/Inputs/undef-bad-debug.s new file mode 100644 index 00000000000..c887b28ab33 --- /dev/null +++ b/lld/test/ELF/Inputs/undef-bad-debug.s @@ -0,0 +1,44 @@ +.section .text,"ax" +sym: + .quad zed6 + +.section .debug_info,"",@progbits + .long .Lcu_end - .Lcu_start # Length of Unit +.Lcu_start: + .short 4 # DWARF version number + .long .Lsection_abbrev # Offset Into Abbrev. Section + .byte 8 # Address Size (in bytes) + .byte 1 # Abbrev [1] 0xb:0x79 DW_TAG_compile_unit + .byte 2 # Abbrev [2] 0x2a:0x15 DW_TAG_variable + .long .Linfo_string # DW_AT_name + # DW_AT_external + .byte 1 # DW_AT_decl_file + .byte 3 # DW_AT_decl_line + .byte 0 # End Of Children Mark +.Lcu_end: + +.section .debug_abbrev,"",@progbits +.Lsection_abbrev: + .byte 1 # Abbreviation Code + .byte 17 # DW_TAG_compile_unit + .byte 1 # DW_CHILDREN_yes + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 52 # DW_TAG_variable + .byte 0 # DW_CHILDREN_no + .byte 3 # DW_AT_name + .byte 14 # DW_FORM_strp + .byte 63 # DW_AT_external + .byte 25 # DW_FORM_flag_present + .byte 58 # DW_AT_decl_file + .byte 11 # DW_FORM_data1 + .byte 59 # DW_AT_decl_line + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 0 # EOM(3) + +.section .debug_str,"MS",@progbits,1 +.Linfo_string: + .asciz "sym" diff --git a/lld/test/ELF/undef.s b/lld/test/ELF/undef.s index 49f84108f64..aabcbbc0821 100644 --- a/lld/test/ELF/undef.s +++ b/lld/test/ELF/undef.s @@ -2,9 +2,10 @@ # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/undef.s -o %t2.o # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/undef-debug.s -o %t3.o +# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/undef-bad-debug.s -o %t4.o # RUN: llvm-ar rc %t2.a %t2.o -# RUN: not ld.lld %t.o %t2.a %t3.o -o %t.exe 2>&1 | FileCheck %s -# RUN: not ld.lld -pie %t.o %t2.a %t3.o -o %t.exe 2>&1 | FileCheck %s +# RUN: not ld.lld %t.o %t2.a %t3.o %t4.o -o %t.exe 2>&1 | FileCheck %s +# RUN: not ld.lld -pie %t.o %t2.a %t3.o %t4.o -o %t.exe 2>&1 | FileCheck %s # CHECK: error: undefined symbol: foo # CHECK: >>> referenced by undef.s @@ -33,6 +34,9 @@ # CHECK: >>> referenced by undef-debug.s:11 (dir{{/|\\}}undef-debug.s:11) # CHECK: >>> {{.*}}.o:(.text.2+0x0) +# CHECK: error: undefined symbol: zed6 +# CHECK: >>> referenced by {{.*}}tmp4.o:(.text+0x0) + # RUN: not ld.lld %t.o %t2.a -o %t.exe -no-demangle 2>&1 | \ # RUN: FileCheck -check-prefix=NO-DEMANGLE %s # NO-DEMANGLE: error: undefined symbol: _Z3fooi |
