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Print dylib load kind (weak, reexport, etc) in llvm-objdump -m -dylibs-used 

Summary:
Historically llvm-objdump prints the path to a dylib as well as the
dylib's compatibility version and current version number. This change
extends this information by adding the kind of dylib load: weak,
reexport, etc.

rdar://51383512

Reviewers: pete, lhames

Reviewed By: pete

Subscribers: rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62866

llvm-svn: 363746
This commit is contained in:
Michael Trent 2019-06-18 22:20:10 +00:00
parent d11ea2c8c5
commit c2885ded2b
2 changed files with 17 additions and 5 deletions
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11
llvm/test/tools/llvm-objdump/X86/macho-dylib.test
View File

@ -1,10 +1,13 @@
RUN: llvm-objdump -m -dylibs-used %p/Inputs/hello.exe.macho-x86_64 | FileCheck %s -check-prefix=USED
RUN: llvm-objdump -m -dylib-id %p/Inputs/dylibLoadKinds.macho-x86_64 | FileCheck %s -check-prefix=ID
RUN: llvm-objdump -m -dylib-id -no-leading-headers %p/Inputs/dylibLoadKinds.macho-x86_64 | FileCheck %s -check-prefix=IDNOHEADERS
RUN: llvm-objdump -m -dylibs-used %p/Inputs/dylibLoadKinds.macho-x86_64 | FileCheck %s -check-prefix=USED
USED: /usr/lib/foo1.dylib (compatibility version 0.0.0, current version 0.0.0)
USED: /usr/lib/foo2.dylib (compatibility version 0.0.0, current version 0.0.0, weak)
USED: /usr/lib/foo3.dylib (compatibility version 0.0.0, current version 0.0.0, reexport)
USED: /usr/lib/foo4.dylib (compatibility version 0.0.0, current version 0.0.0, lazy)
USED: /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
RUN: llvm-objdump -m -dylib-id %p/Inputs/dylibLoadKinds.macho-x86_64 | FileCheck %s -check-prefix=ID
ID: /usr/lib/foo.dylib
RUN: llvm-objdump -m -dylib-id -no-leading-headers %p/Inputs/dylibLoadKinds.macho-x86_64 | FileCheck %s -check-prefix=IDNOHEADERS
IDNOHEADERS-NOT: dylibLoadKinds.macho-x86_64:
IDNOHEADERS: /usr/lib/foo.dylib

11
llvm/tools/llvm-objdump/MachODump.cpp
View File

@ -1206,7 +1206,16 @@ static void PrintDylibs(MachOObjectFile *O, bool JustId) {
outs() << " current version "
<< ((dl.dylib.current_version >> 16) & 0xffff) << "."
<< ((dl.dylib.current_version >> 8) & 0xff) << "."
<< (dl.dylib.current_version & 0xff) << ")\n";
<< (dl.dylib.current_version & 0xff);
if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB)
outs() << ", weak";
if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB)
outs() << ", reexport";
if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
outs() << ", upward";
if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB)
outs() << ", lazy";
outs() << ")\n";
}
} else {
outs() << "\tBad offset (" << dl.dylib.name << ") for name of ";