1 files changed, 91 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug_line_invalid.test b/llvm/test/tools/llvm-dwarfdump/X86/debug_line_invalid.test
new file mode 100644
index 00000000000..29ee24a3f23
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug_line_invalid.test
@@ -0,0 +1,91 @@
+# Test the different error cases in the debug line parsing and how they prevent
+# or don't prevent further dumping of section contents.
+
+# RUN: llvm-mc -triple x86_64-pc-linux %S/Inputs/debug_line_reserved_length.s -filetype=obj -o %t-reserved.o
+# RUN: llvm-dwarfdump -debug-line %t-reserved.o 2> %t-reserved.err | FileCheck %s --check-prefixes=FIRST,FATAL
+# RUN: FileCheck %s --input-file=%t-reserved.err --check-prefix=RESERVED
+# RUN: llvm-dwarfdump -debug-line %t-reserved.o -verbose 2> %t-reserved-verbose.err | FileCheck %s --check-prefixes=FIRST,FATAL
+# RUN: FileCheck %s --input-file=%t-reserved-verbose.err --check-prefix=RESERVED
+
+# We should still produce warnings for malformed tables after the specified unit.
+# RUN: llvm-dwarfdump -debug-line=0 %t-reserved.o 2> %t-reserved-off-first.err | FileCheck %s --check-prefixes=FIRST,NOLATER
+# RUN: FileCheck %s --input-file=%t-reserved-off-first.err --check-prefix=RESERVED
+
+# Stop looking for the specified unit, if a fatally-bad prologue is detected.
+# RUN: llvm-dwarfdump -debug-line=0x4b %t-reserved.o 2> %t-reserved-off-last.err | FileCheck %s --check-prefixes=NOFIRST,NOLATER
+# RUN: FileCheck %s --input-file=%t-reserved-off-last.err --check-prefix=RESERVED
+
+# RUN: llvm-mc -triple x86_64-pc-linux %S/Inputs/debug_line_malformed.s -filetype=obj -o %t-malformed.o
+# RUN: llvm-dwarfdump -debug-line %t-malformed.o 2> %t-malformed.err | FileCheck %s --check-prefixes=FIRST,NONFATAL
+# RUN: FileCheck %s --input-file=%t-malformed.err --check-prefixes=ALL,OTHER
+# RUN: llvm-dwarfdump -debug-line %t-malformed.o -verbose 2> %t-malformed-verbose.err | FileCheck %s --check-prefixes=FIRST,NONFATAL
+# RUN: FileCheck %s --input-file=%t-malformed-verbose.err --check-prefixes=ALL,OTHER
+
+# RUN: llvm-dwarfdump -debug-line=0 %t-malformed.o 2> %t-malformed-off-first.err | FileCheck %s --check-prefixes=FIRST,NOLATER
+# RUN: FileCheck %s --input-file=%t-malformed-off-first.err --check-prefix=ALL
+
+# Don't stop looking for the later unit if non-fatal issues are found.
+# RUN: llvm-dwarfdump -debug-line=0x183 %t-malformed.o 2> %t-malformed-off-last.err | FileCheck %s --check-prefixes=LASTONLY
+# RUN: FileCheck %s --input-file=%t-malformed-off-last.err --check-prefix=ALL
+
+# FIRST: debug_line[0x00000000]
+# FIRST: 0x000000000badbeef {{.*}} end_sequence
+# NOFIRST-NOT: debug_line[0x00000000]
+# NOFIRST-NOT: 0x000000000badbeef {{.*}} end_sequence
+# NOLATER-NOT: debug_line[{{.*}}]
+# NOLATER-NOT: end_sequence
+
+# For fatal issues, the following table(s) should not be dumped.
+# FATAL: debug_line[0x00000048]
+# FATAL-NEXT: Line table prologue
+# FATAL-NEXT: total_length: 0xfffffffe
+# FATAL-NOT: debug_line
+
+# For non-fatal prologue issues, the table prologue should be dumped, and any subsequent tables should also be.
+# NONFATAL: debug_line[0x00000048]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: Address
+# NONFATAL: debug_line[0x0000004e]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: Address
+# NONFATAL: debug_line[0x00000054]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: Address
+# NONFATAL: debug_line[0x00000073]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: Address
+# NONFATAL: debug_line[0x000000ad]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: Address
+# NONFATAL: debug_line[0x000000e7]
+# Dumping prints the line table prologue and any valid operations up to the point causing the problem.
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL: 0x00000000abbadaba {{.*}} end_sequence
+# NONFATAL-NOT: is_stmt
+
+# For minor issues, we can dump the table.
+# NONFATAL: debug_line[0x0000013d]
+# NONFATAL-NEXT: Line table prologue
+# NONFATAL-NOT: debug_line[{{.*}}]
+# NONFATAL: 0x00000000deadfade {{.*}}
+# NONFATAL: debug_line[0x00000183]
+# NONFATAL-NOT: debug_line[{{.*}}]
+# NONFATAL: 0x00000000cafebabe {{.*}} end_sequence
+# NONFATAL-NOT: debug_line[{{.*}}]
+
+# LASTONLY-NOT: debug_line[{{.*}}]
+# LASTONLY: debug_line[0x00000183]
+# LASTONLY: 0x00000000cafebabe {{.*}} end_sequence
+
+# RESERVED: warning: parsing line table prologue at offset 0x00000048 unsupported reserved unit length found of value 0xfffffffe
+
+# ALL-NOT:  warning:
+# ALL:      warning: parsing line table prologue at offset 0x00000048 found unsupported version 0x00
+# ALL-NEXT: warning: parsing line table prologue at offset 0x0000004e found unsupported version 0x01
+# ALL-NEXT: warning: parsing line table prologue at 0x00000054 found an invalid directory or file table description at 0x00000073
+# FIXME - The latter offset in the next line should be 0xad. The filename parsing code does not notice a missing terminating byte.
+# ALL-NEXT: warning: parsing line table prologue at 0x00000073 should have ended at 0x000000ab but it ended at 0x000000ac
+# ALL-NEXT: warning: parsing line table prologue at 0x000000ad should have ended at 0x000000e8 but it ended at 0x000000e7
+# OTHER-NEXT: warning: unexpected line op length at offset 0x0000012e expected 0x02 found 0x01
+# OTHER-NEXT: warning: last sequence in debug line table is not terminated!
+# ALL-NOT:  warning: