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[dwarfdump] Prettyprint DW_AT_APPLE_property_attribute bitfield values.

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This change depends on the ApplePropertyString helper that I sent spearately.
Not sure how you want this tested: as a tool test by adding a binary to dump, or as an llvm test starting from an IR file?

Reviewers: dblaikie, samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5689

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219507 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Frederic Riss 2014-10-10 15:51:10 +00:00
parent dd2cb9cae7
commit 0f65dfd92b
4 changed files with 75 additions and 0 deletions
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19
lib/DebugInfo/DWARFDebugInfoEntry.cpp
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@ -12,6 +12,7 @@
#include "DWARFContext.h"
#include "DWARFDebugAbbrev.h"
#include "llvm/DebugInfo/DWARFFormValue.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
@ -72,6 +73,21 @@ void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, DWARFUnit *u,
}
}
static void dumpApplePropertyAttribute(raw_ostream &OS, uint64_t Val) {
OS << " (";
do {
uint64_t Bit = 1ULL << countTrailingZeros(Val);
if (const char *PropName = ApplePropertyString(Bit))
OS << PropName;
else
OS << format("DW_APPLE_PROPERTY_0x%" PRIx64, Bit);
if (!(Val ^= Bit))
break;
OS << ", ";
} while (true);
OS << ")";
}
void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
DWARFUnit *u,
uint32_t *offset_ptr,
@ -130,6 +146,9 @@ void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
if (const DWARFUnit *RefU = findUnitAndExtractFast(DIE, u, &Ref))
if (const char *Ref = DIE.getName(RefU, DINameKind::LinkageName))
OS << " \"" << Ref << '\"';
} else if (attr == DW_AT_APPLE_property_attribute) {
if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant())
dumpApplePropertyAttribute(OS, *OptVal);
}
OS << ")\n";

16
test/DebugInfo/Inputs/dwarfdump-objc.m Normal file
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@ -0,0 +1,16 @@
// Compile with clang -g dwarfdump-objc.m -c -Wno-objc-root-class
@interface NSObject {} @end
@interface TestInterface
@property (readonly) int ReadOnly;
@property (assign) int Assign;
@property (readwrite) int ReadWrite;
@property (retain) NSObject *Retain;
@property (copy) NSObject *Copy;
@property (nonatomic) int NonAtomic;
@end
@implementation TestInterface
@end

BIN
test/DebugInfo/Inputs/dwarfdump-objc.x86_64.o Normal file
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40
test/DebugInfo/dwarfdump-objc.test Normal file
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@ -0,0 +1,40 @@
RUN: llvm-dwarfdump %p/Inputs/dwarfdump-objc.x86_64.o | FileCheck %s
CHECK: .debug_info contents:
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "ReadOnly"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x01 (DW_APPLE_PROPERTY_readonly))
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "Assign"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x0c (DW_APPLE_PROPERTY_assign, DW_APPLE_PROPERTY_readwrite))
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "ReadWrite"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x0c (DW_APPLE_PROPERTY_assign, DW_APPLE_PROPERTY_readwrite))
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "Retain"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x18 (DW_APPLE_PROPERTY_readwrite, DW_APPLE_PROPERTY_retain))
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "Copy"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x28 (DW_APPLE_PROPERTY_readwrite, DW_APPLE_PROPERTY_copy))
CHECK: DW_TAG_APPLE_property
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_name {{.*}} "NonAtomic"
CHECK-NOT: TAG
CHECK: DW_AT_APPLE_property_attribute {{.*}} (0x4c (DW_APPLE_PROPERTY_assign, DW_APPLE_PROPERTY_readwrite, DW_APPLE_PROPERTY_nonatomic))