maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/test/Driver/linux-ld.c

113 lines
6.9 KiB
C
Raw Normal View History

Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// General tests that ld invocations on Linux targets sane. Note that we use
// sysroot to make these tests independent of the host system.
Add a test that ensures we get the basic multilib '-L' flags to 'ld' invocations on Linux. llvm-svn: 140909
2011-10-01 08:37:39 +08:00
//
Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
Teach the logic for locating an installed GCC about the system root. This requires fixing a latent bug -- if we used the default host triple instead of an autodetected triple to locate GCC's installation, we didn't go back and fix the GCC triple. Correct that with a pile of hacks. This entire routine needs a major refactoring which I'm saving for a subsequent commit. Essentially, the detection of the GCC triple should be hoisted into the same routine as we locate the GCC installation: the first is intrinsically tied to the latter. Then the routine will just return the triple and base directory. Also start to bring the rest of the library search path logic under test, including locating crtbegin.o. Still need to test the multilib and other behaviors, but there are also bugs in the way of that. llvm-svn: 140995
2011-10-03 16:02:58 +08:00
// RUN: -ccc-host-triple i386-unknown-linux \
Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// RUN: --sysroot=%S/Inputs/basic_linux_tree \
Add a test that ensures we get the basic multilib '-L' flags to 'ld' invocations on Linux. llvm-svn: 140909
2011-10-01 08:37:39 +08:00
// RUN: | FileCheck --check-prefix=CHECK-LD-32 %s
Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// CHECK-LD-32: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
Relax an assertion here a bit. This doesn't really matter, as we won't include *any* path on crtbegin.o unless we actually find such a file via one of the search paths. We still strictly check the search paths right after this, so we'll catch any issues there. The reason for this is that the driver does some normalization of the path on the actual object file, and this changes the textual format of the string on Windows. It no longer matches the textual format of the sysroot flag. llvm-svn: 140998
2011-10-03 16:16:09 +08:00
// CHECK-LD-32: "{{.*}}/usr/lib/gcc/i386-unknown-linux/4.6.0/crtbegin.o"
Teach the logic for locating an installed GCC about the system root. This requires fixing a latent bug -- if we used the default host triple instead of an autodetected triple to locate GCC's installation, we didn't go back and fix the GCC triple. Correct that with a pile of hacks. This entire routine needs a major refactoring which I'm saving for a subsequent commit. Essentially, the detection of the GCC triple should be hoisted into the same routine as we locate the GCC installation: the first is intrinsically tied to the latter. Then the routine will just return the triple and base directory. Also start to bring the rest of the library search path logic under test, including locating crtbegin.o. Still need to test the multilib and other behaviors, but there are also bugs in the way of that. llvm-svn: 140995
2011-10-03 16:02:58 +08:00
// CHECK-LD-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0"
Test that we include a GCC-triple-prefixed tree. While I don't know of any distros that use this, building a multilib GCC from mainline will install linker scripts here. llvm-svn: 140996
2011-10-03 16:09:02 +08:00
// CHECK-LD-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../i386-unknown-linux/lib"
Teach the logic for locating an installed GCC about the system root. This requires fixing a latent bug -- if we used the default host triple instead of an autodetected triple to locate GCC's installation, we didn't go back and fix the GCC triple. Correct that with a pile of hacks. This entire routine needs a major refactoring which I'm saving for a subsequent commit. Essentially, the detection of the GCC triple should be hoisted into the same routine as we locate the GCC installation: the first is intrinsically tied to the latter. Then the routine will just return the triple and base directory. Also start to bring the rest of the library search path logic under test, including locating crtbegin.o. Still need to test the multilib and other behaviors, but there are also bugs in the way of that. llvm-svn: 140995
2011-10-03 16:02:58 +08:00
// CHECK-LD-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../.."
// CHECK-LD-32: "-L[[SYSROOT]]/lib"
// CHECK-LD-32: "-L[[SYSROOT]]/usr/lib"
Add a test that ensures we get the basic multilib '-L' flags to 'ld' invocations on Linux. llvm-svn: 140909
2011-10-01 08:37:39 +08:00
//
Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple x86_64-unknown-linux \
// RUN: --sysroot=%S/Inputs/basic_linux_tree \
Add a test that ensures we get the basic multilib '-L' flags to 'ld' invocations on Linux. llvm-svn: 140909
2011-10-01 08:37:39 +08:00
// RUN: | FileCheck --check-prefix=CHECK-LD-64 %s
Add initial support for applying the sysroot to library search paths. This is still very much a WIP, but sysroot was completely broken before this so we are moving closer to correctness. The crux of this is that 'ld' (on Linux, the only place I'm touching here) doesn't apply the sysroot to any flags given to it. Instead, the driver must translate all the paths it adds to the link step with the system root. This is easily observed by building a GCC that supports sysroot, and checking its driver output. This patch just fixes the non-multilib library search paths. We should also use this in many other places, but first things first. This also allows us to make the Linux 'ld' test independent of the host system. This in turn will allow me to check in test tree configurations based on various different distro's configuration. Again, WIP. llvm-svn: 140990
2011-10-03 14:41:08 +08:00
// CHECK-LD-64: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
Relax an assertion here a bit. This doesn't really matter, as we won't include *any* path on crtbegin.o unless we actually find such a file via one of the search paths. We still strictly check the search paths right after this, so we'll catch any issues there. The reason for this is that the driver does some normalization of the path on the actual object file, and this changes the textual format of the string on Windows. It no longer matches the textual format of the sysroot flag. llvm-svn: 140998
2011-10-03 16:16:09 +08:00
// CHECK-LD-64: "{{.*}}/usr/lib/gcc/x86_64-unknown-linux/4.6.0/crtbegin.o"
Teach the logic for locating an installed GCC about the system root. This requires fixing a latent bug -- if we used the default host triple instead of an autodetected triple to locate GCC's installation, we didn't go back and fix the GCC triple. Correct that with a pile of hacks. This entire routine needs a major refactoring which I'm saving for a subsequent commit. Essentially, the detection of the GCC triple should be hoisted into the same routine as we locate the GCC installation: the first is intrinsically tied to the latter. Then the routine will just return the triple and base directory. Also start to bring the rest of the library search path logic under test, including locating crtbegin.o. Still need to test the multilib and other behaviors, but there are also bugs in the way of that. llvm-svn: 140995
2011-10-03 16:02:58 +08:00
// CHECK-LD-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0"
Test that we include a GCC-triple-prefixed tree. While I don't know of any distros that use this, building a multilib GCC from mainline will install linker scripts here. llvm-svn: 140996
2011-10-03 16:09:02 +08:00
// CHECK-LD-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../x86_64-unknown-linux/lib"
Teach the logic for locating an installed GCC about the system root. This requires fixing a latent bug -- if we used the default host triple instead of an autodetected triple to locate GCC's installation, we didn't go back and fix the GCC triple. Correct that with a pile of hacks. This entire routine needs a major refactoring which I'm saving for a subsequent commit. Essentially, the detection of the GCC triple should be hoisted into the same routine as we locate the GCC installation: the first is intrinsically tied to the latter. Then the routine will just return the triple and base directory. Also start to bring the rest of the library search path logic under test, including locating crtbegin.o. Still need to test the multilib and other behaviors, but there are also bugs in the way of that. llvm-svn: 140995
2011-10-03 16:02:58 +08:00
// CHECK-LD-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../.."
// CHECK-LD-64: "-L[[SYSROOT]]/lib"
// CHECK-LD-64: "-L[[SYSROOT]]/usr/lib"
Enable generic multilib support on 32bit hosts. Previously this was only enabled for debian hosts, which is quite odd. I think all restriction on when Clang attempts to use a multilib installation should go away. Clang is fundamentally a cross compiler. It behaves more like GCC when built as a cross compiler, and so it should just use multilib installs when they are present on the system. However, there is a very specific exemption for Exherbo, which I can't test on, so I'm leaving that in place. With this, check in a generic test tree for multilib on a 32-bit host. This stubs out many directories that most distributions don't use but that uptsream GCC supports. This is intended to be an agnostic test that the driver behaves properly compared with the GCC driver it aims for compatibility with. Also, fix a bug in the driver that this testing exposed (see!) where it was incorrectly testing the target architecture rather than the host architecture. If anyone is having trouble with the tree-structure stubs I'm creating to test this, let me know and I can revisit the design. I chose this over (for example) a tar-ball in order to make tests run faster at the small, hopefully amortized VCS cost. llvm-svn: 140999
2011-10-03 17:00:50 +08:00
//
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple i386-unknown-linux -m32 \
// RUN: --sysroot=%S/Inputs/multilib_32bit_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-32-TO-32 %s
// CHECK-32-TO-32: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-32-TO-32: "{{.*}}/usr/lib/gcc/i386-unknown-linux/4.6.0/crtbegin.o"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../i386-unknown-linux/lib/../lib32"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../lib32"
// CHECK-32-TO-32: "-L[[SYSROOT]]/lib/../lib32"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/../lib32"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../i386-unknown-linux/lib"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../.."
// CHECK-32-TO-32: "-L[[SYSROOT]]/lib"
// CHECK-32-TO-32: "-L[[SYSROOT]]/usr/lib"
//
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple i386-unknown-linux -m64 \
// RUN: --sysroot=%S/Inputs/multilib_32bit_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-32-TO-64 %s
// CHECK-32-TO-64: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-32-TO-64: "{{.*}}/usr/lib/gcc/i386-unknown-linux/4.6.0/64/crtbegin.o"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/64"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../i386-unknown-linux/lib/../lib64"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../lib64"
// CHECK-32-TO-64: "-L[[SYSROOT]]/lib/../lib64"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/../lib64"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../../../i386-unknown-linux/lib"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/i386-unknown-linux/4.6.0/../../.."
// CHECK-32-TO-64: "-L[[SYSROOT]]/lib"
// CHECK-32-TO-64: "-L[[SYSROOT]]/usr/lib"
Test a multilib setup on a 64-bit host. This is the far more common configuration, although the test still stubs out more directories than are necessary or common in order to exercise all of the lookup paths observed with upstream GCC. This finishes testing the distribution-independent and GCC-installation-independent parts of the library path search logic. More testing is still needed for the triple detection, GCC-installation detection, and handling distributions with unusual configurations. llvm-svn: 141000
2011-10-03 17:08:26 +08:00
//
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple x86_64-unknown-linux -m64 \
// RUN: --sysroot=%S/Inputs/multilib_64bit_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-64-TO-64 %s
// CHECK-64-TO-64: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-64-TO-64: "{{.*}}/usr/lib/gcc/x86_64-unknown-linux/4.6.0/crtbegin.o"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../x86_64-unknown-linux/lib/../lib64"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../lib64"
// CHECK-64-TO-64: "-L[[SYSROOT]]/lib/../lib64"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/../lib64"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../x86_64-unknown-linux/lib"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../.."
// CHECK-64-TO-64: "-L[[SYSROOT]]/lib"
// CHECK-64-TO-64: "-L[[SYSROOT]]/usr/lib"
//
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple x86_64-unknown-linux -m32 \
// RUN: --sysroot=%S/Inputs/multilib_64bit_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-64-TO-32 %s
// CHECK-64-TO-32: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-64-TO-32: "{{.*}}/usr/lib/gcc/x86_64-unknown-linux/4.6.0/32/crtbegin.o"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/32"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../x86_64-unknown-linux/lib/../lib32"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../lib32"
// CHECK-64-TO-32: "-L[[SYSROOT]]/lib/../lib32"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/../lib32"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../../../x86_64-unknown-linux/lib"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0/../../.."
// CHECK-64-TO-32: "-L[[SYSROOT]]/lib"
// CHECK-64-TO-32: "-L[[SYSROOT]]/usr/lib"
Implement the feature I was originally driving toward when I started this saga. Teach the driver to detect a GCC installed along side Clang using the existing InstalledDir support in the Clang driver. This makes a lot of Clang's behavior more automatic when it is installed along side GCC. Also include the first test cases (more to come, honest) which test both the install directory behavior, and the version sorting behavior to show that we're actually searching for the best candidate GCC installation now. llvm-svn: 141145
2011-10-05 09:01:57 +08:00
//
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple i386-unknown-linux -m32 \
// RUN: -ccc-install-dir %S/Inputs/fake_install_tree \
// RUN: --sysroot=%S/Inputs/basic_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-INSTALL-DIR-32 %s
// CHECK-INSTALL-DIR-32: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-INSTALL-DIR-32: "{{.*}}/Inputs/fake_install_tree/lib/gcc/i386-unknown-linux/4.7.0/crtbegin.o"
// CHECK-INSTALL-DIR-32: "-L{{.*}}/Inputs/fake_install_tree/lib/gcc/i386-unknown-linux/4.7.0"
//
// Check that with 64-bit builds, we don't actually use the install directory
// as its version of GCC is lower than our sysrooted version.
// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
// RUN: -ccc-host-triple x86_64-unknown-linux -m64 \
// RUN: -ccc-install-dir %S/Inputs/fake_install_tree \
// RUN: --sysroot=%S/Inputs/basic_linux_tree \
// RUN: | FileCheck --check-prefix=CHECK-INSTALL-DIR-64 %s
// CHECK-INSTALL-DIR-64: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
// CHECK-INSTALL-DIR-64: "{{.*}}/usr/lib/gcc/x86_64-unknown-linux/4.6.0/crtbegin.o"
// CHECK-INSTALL-DIR-64: "-L[[SYSROOT]]/usr/lib/gcc/x86_64-unknown-linux/4.6.0"