[dwarfdump] Make .eh_frame an alias for .debug_frame
This patch makes the `.eh_frame` extension an alias for `.debug_frame`.
Up till now it was only possible to dump the section using objdump, but
not with dwarfdump. Since the two are essentially interchangeable, we
dump whichever of the two is present.
As a workaround, this patch also adds parsing for 3 currently
unimplemented CFA instructions: `DW_CFA_def_cfa_expression`,
`DW_CFA_expression`, and `DW_CFA_val_expression`. Because I lack the
required knowledge, I just parse the fields without actually creating
the instructions.
Finally, this also fixes the typo in the `.debug_frame` section name
which incorrectly contained a trailing `s`.
Differential revision: https://reviews.llvm.org/D37852
llvm-svn: 313530
diff --git a/llvm/test/DebugInfo/dwarfdump-debug-frame-simple.test b/llvm/test/DebugInfo/dwarfdump-debug-frame-simple.test
index 6d0987b..7193abc 100644
--- a/llvm/test/DebugInfo/dwarfdump-debug-frame-simple.test
+++ b/llvm/test/DebugInfo/dwarfdump-debug-frame-simple.test
@@ -1,8 +1,7 @@
-; RUN: llvm-dwarfdump %p/Inputs/dwarfdump-test-32bit.elf.o --debug-frames | FileCheck %s -check-prefix FRAMES
+; RUN: llvm-dwarfdump %p/Inputs/dwarfdump-test-32bit.elf.o --debug-frame | FileCheck %s -check-prefix FRAMES
; Note: the input file was generated from Inputs/dwarfdump-test-32bit.elf.c
; FRAMES: .debug_frame
-; FRAMES-NOT: .eh_frame
; FRAMES: 00000000 00000010 ffffffff CIE
; FRAMES: Version: 1
@@ -25,4 +24,4 @@
; FRAMES-NOT: CIE
; FRAMES-NOT: FDE
-
+; FRAMES: .eh_frame
diff --git a/llvm/test/MC/X86/i386-darwin-frame-register.ll b/llvm/test/MC/X86/i386-darwin-frame-register.ll
index 5a433a9..c56e8e6 100644
--- a/llvm/test/MC/X86/i386-darwin-frame-register.ll
+++ b/llvm/test/MC/X86/i386-darwin-frame-register.ll
@@ -1,4 +1,4 @@
-; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump -debug-frames - | FileCheck %s
+; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump -debug-frame - | FileCheck %s
; IR reduced from a dummy:
; void foo() {}
diff --git a/llvm/test/tools/dsymutil/X86/frame-1.test b/llvm/test/tools/dsymutil/X86/frame-1.test
index 00f399b..513694b 100644
--- a/llvm/test/tools/dsymutil/X86/frame-1.test
+++ b/llvm/test/tools/dsymutil/X86/frame-1.test
@@ -2,7 +2,7 @@
# RUN: rm -rf %t
# RUN: mkdir -p %t
# RUN: llc -filetype=obj %p/../Inputs/frame-dw2.ll -o %t/frame-dw2.o
-# RUN: llvm-dsymutil -f -oso-prepend-path=%t -y %s -o - | llvm-dwarfdump -debug-frames - | FileCheck %s
+# RUN: llvm-dsymutil -f -oso-prepend-path=%t -y %s -o - | llvm-dwarfdump -debug-frame - | FileCheck %s
# This test is meant to verify that identical CIEs will get reused
# in the same file but also inbetween files. For this to happen, we
@@ -29,4 +29,4 @@
# CHECK-NOT: FDE
# CHECK: FDE cie=00000000 pc=00003000...00003
# CHECK-NOT: FDE
-
+# CHECK: .eh_frame contents:
diff --git a/llvm/test/tools/dsymutil/X86/frame-2.test b/llvm/test/tools/dsymutil/X86/frame-2.test
index 9d73890..613ccb8 100644
--- a/llvm/test/tools/dsymutil/X86/frame-2.test
+++ b/llvm/test/tools/dsymutil/X86/frame-2.test
@@ -3,7 +3,7 @@
# RUN: mkdir -p %t
# RUN: llc -filetype=obj %p/../Inputs/frame-dw2.ll -o %t/frame-dw2.o
# RUN: llc -filetype=obj %p/../Inputs/frame-dw4.ll -o %t/frame-dw4.o
-# RUN: llvm-dsymutil -f -oso-prepend-path=%t -y %s -o - | llvm-dwarfdump -debug-frames - | FileCheck %s
+# RUN: llvm-dsymutil -f -oso-prepend-path=%t -y %s -o - | llvm-dwarfdump -debug-frame - | FileCheck %s
# Check the handling of multiple different CIEs. To have CIEs that
# appear to be different, use a dwarf2 version of the file along with
@@ -44,4 +44,4 @@
# CHECK-NOT: FDE
# CHECK: FDE cie=[[CIEDW2]] pc=00004000...00004
# CHECK-NOT: FDE
-
+# CHECK: .eh_frame contents: