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[lld-macho] Add implicit dylib support for frameworks

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{D93000} applied to frameworks. Partial fix for PR48511.

Reviewed By: #lld-macho, thakis

Differential Revision: https://reviews.llvm.org/D93277
This commit is contained in:
Jez Ng 2020-12-15 00:49:03 -05:00
parent 8a5e068823
commit 3aa8e071dd
2 changed files with 62 additions and 4 deletions
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13
lld/MachO/InputFiles.cpp
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@ -508,9 +508,16 @@ static bool isImplicitlyLinked(StringRef path) {
if (!config->implicitDylibs)
return false;
return path::parent_path(path) == "/usr/lib";
// TODO: check for public frameworks too. We'll need to implement
// -sub_umbrella first to write a test case.
if (path::parent_path(path) == "/usr/lib")
return true;
// Match /System/Library/Frameworks/$FOO.framework/**/$FOO
if (path.consume_front("/System/Library/Frameworks/")) {
StringRef frameworkName = path.take_until([](char c) { return c == '.'; });
return path::filename(path) == frameworkName;
}
return false;
}
void loadReexport(StringRef path, DylibFile *umbrella) {

53
lld/test/MachO/implicit-dylibs.s
View File

@ -3,10 +3,16 @@
# UNSUPPORTED: system-windows
# RUN: rm -rf %t; split-file %s %t
# RUN: mkdir -p %t/usr/lib/system
# RUN: mkdir -p %t/System/Library/Frameworks/Foo.framework/Versions/A
# RUN: mkdir -p %t/System/Library/Frameworks/Foo.framework/Frameworks/Bar.framework/Versions/A
# RUN: mkdir -p %t/Baz.framework/Versions/A
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libfoo.s -o %t/libfoo.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libtoplevel.s -o %t/libtoplevel.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libsublevel.s -o %t/libsublevel.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/framework-foo.s -o %t/framework-foo.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/framework-bar.s -o %t/framework-bar.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/framework-baz.s -o %t/framework-baz.o
## libunused will be used to verify that we load implicit dylibs even if we
## don't use any symbols they contain.
# RUN: echo "" | llvm-mc -filetype=obj -triple=x86_64-apple-darwin -o %t/libunused.o
@ -16,10 +22,28 @@
# RUN: %lld -dylib -lSystem %t/libtoplevel.o -o %t/usr/lib/libtoplevel.dylib -install_name /usr/lib/libtoplevel.dylib
# RUN: %lld -dylib -lSystem %t/libsublevel.o -o %t/usr/lib/system/libsublevel.dylib -install_name /usr/lib/system/libsublevel.dylib
# RUN: %lld -dylib -lSystem %t/libunused.o -o %t/usr/lib/libunused.dylib -install_name /usr/lib/libunused.dylib
# RUN: %lld -dylib -syslibroot %t \
## Bar.framework is nested within Foo.framework.
# RUN: %lld -dylib -lSystem %t/framework-baz.o -o %t/System/Library/Frameworks/Foo.framework/Frameworks/Bar.framework/Versions/A/Bar \
# RUN: -install_name /System/Library/Frameworks/Foo.framework/Frameworks/Bar.framework/Versions/A/Bar
# RUN: ln -sf %t/System/Library/Frameworks/Foo.framework/Frameworks/Bar.framework/Versions/A/Bar \
# RUN: %t/System/Library/Frameworks/Foo.framework/Frameworks/Bar.framework/Bar
## Have Foo re-export Bar.
# RUN: %lld -dylib -F %t/System/Library/Frameworks/Foo.framework/Frameworks \
# RUN: -framework Bar -sub_umbrella Bar -lSystem %t/framework-foo.o -o %t/System/Library/Frameworks/Foo.framework/Versions/A/Foo \
# RUN: -install_name /System/Library/Frameworks/Foo.framework/Versions/A/Foo
# RUN: ln -sf %t/System/Library/Frameworks/Foo.framework/Versions/A/Foo %t/System/Library/Frameworks/Foo.framework/Foo
# RUN: %lld -dylib -lSystem %t/framework-bar.o -o %t/Baz.framework/Versions/A/Baz \
# RUN: -install_name %t/Baz.framework/Versions/A/Baz
# RUN: ln -sf %t/Baz.framework/Versions/A/Baz %t/Baz.framework/Baz
# RUN: %lld -dylib -syslibroot %t -framework Foo -F %t -framework Baz \
# RUN: -lc++ -ltoplevel -lunused %t/usr/lib/system/libsublevel.dylib %t/libfoo.dylib \
# RUN: -sub_library libc++ -sub_library libfoo -sub_library libtoplevel \
# RUN: -sub_library libsublevel -sub_library libunused \
# RUN: -sub_umbrella Baz -sub_umbrella Foo \
# RUN: %t/reexporter.o -o %t/libreexporter.dylib
# RUN: llvm-mc -filetype obj -triple x86_64-apple-darwin %t/test.s -o %t/test.o
@ -29,6 +53,9 @@
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libreexporter _foo
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libtoplevel _toplevel
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libreexporter _sublevel
# CHECK-DAG: __DATA __data {{.*}} pointer 0 Foo _framework_foo
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libreexporter _framework_bar
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libreexporter _framework_baz
# CHECK-DAG: __DATA __data {{.*}} pointer 0 libc++abi ___gxx_personality_v0
# RUN: llvm-objdump --macho --all-headers %t/test | FileCheck %s \
@ -43,6 +70,9 @@
# LOAD-NEXT: name /usr/lib/libSystem.B.dylib
# LOAD: cmd LC_LOAD_DYLIB
# LOAD-NEXT: cmdsize
# LOAD-NEXT: name /System/Library/Frameworks/Foo.framework/Versions/A/Foo
# LOAD: cmd LC_LOAD_DYLIB
# LOAD-NEXT: cmdsize
# LOAD-NEXT: name /usr/lib/libc++abi.dylib
# LOAD: cmd LC_LOAD_DYLIB
# LOAD-NEXT: cmdsize
@ -63,6 +93,9 @@
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _foo
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _toplevel
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _sublevel
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _framework_foo
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _framework_bar
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter _framework_baz
# NO-IMPLICIT-DAG: __DATA __data {{.*}} pointer 0 libreexporter ___gxx_personality_v0
#--- libfoo.s
@ -80,6 +113,21 @@ _toplevel:
.globl _sublevel
_sublevel:
#--- framework-foo.s
.data
.globl _framework_foo
_framework_foo:
#--- framework-bar.s
.data
.globl _framework_bar
_framework_bar:
#--- framework-baz.s
.data
.globl _framework_baz
_framework_baz:
#--- test.s
.text
.globl _main
@ -91,4 +139,7 @@ _main:
.quad _foo
.quad _toplevel
.quad _sublevel
.quad _framework_foo
.quad _framework_bar
.quad _framework_baz
.quad ___gxx_personality_v0