Ticket #62770: 0001-clang-11-Backport-upstream-clang-12-patch-for-sysroo.patch

File 0001-clang-11-Backport-upstream-clang-12-patch-for-sysroo.patch, 14.6 KB (added by landonf (Landon Fuller), 5 years ago)

Backport upstream clang-12 patch for <sysroot> for C++ headers

  • lang/llvm-11/Portfile 

    From aaf848cee4819e05ac6de949a6246c2d2b12299d Mon Sep 17 00:00:00 2001
From: Landon Fuller <landonf@macports.org>
Date: Fri, 23 Apr 2021 13:46:40 -0600
Subject: [PATCH 1/2] clang-11: Backport upstream clang-12 patch for <sysroot>
 for C++ headers

See https://reviews.llvm.org/D89001
---
 lang/llvm-11/Portfile                         |   5 +-
 ...-fix-include-next-sysroot-cpp-headers.diff | 232 ++++++++++++++++++
 2 files changed, 235 insertions(+), 2 deletions(-)
 create mode 100644 lang/llvm-11/files/patch-clang-fix-include-next-sysroot-cpp-headers.diff

diff --git a/lang/llvm-11/Portfile b/lang/llvm-11/Portfile
index f658b8435ae..c7f59592658 100644
    a b checksums rmd160 f566b4b75c8f30418f19069a9a84864ead766401 \ 
    2525
    2626name                    llvm-${llvm_version}
    2727revision                0
    28 subport                 clang-${llvm_version} { revision 1 }
     28subport                 clang-${llvm_version} { revision 2 }
    2929subport                 flang-${llvm_version} { revision 0 }
    3030subport                 lldb-${llvm_version} { revision 0 }
    3131set suffix              mp-${llvm_version}
    … … if {${subport} eq "clang-${llvm_version}"} { 
    151151        openmp-locations.patch \
    152152        leopard-no-asan.patch \
    153153        5000-patch-compilerrtdarwinutils-find-macosxsdkversion.diff \
    154         5002-patch-toolchains-darwin-add-back-pre-10.6-link-libs.diff
     154        5002-patch-toolchains-darwin-add-back-pre-10.6-link-libs.diff \
     155        patch-clang-fix-include-next-sysroot-cpp-headers.diff
    155156}
    156157
    157158if {${subport} eq "flang-${llvm_version}"} {

  • new file lang/llvm-11/files/patch-clang-fix-include-next-sysroot-cpp-headers.diff 

    diff --git a/lang/llvm-11/files/patch-clang-fix-include-next-sysroot-cpp-headers.diff b/lang/llvm-11/files/patch-clang-fix-include-next-sysroot-cpp-headers.diff
new file mode 100644
index 00000000000..59b5844f17d
    - +  
     1--- a/tools/clang/lib/Driver/ToolChains/Darwin.cpp
     2+++ b/tools/clang/lib/Driver/ToolChains/Darwin.cpp
     3@@ -2021,21 +2021,42 @@ void DarwinClang::AddClangCXXStdlibIncludeArgs(
     4 
     5   switch (GetCXXStdlibType(DriverArgs)) {
     6   case ToolChain::CST_Libcxx: {
     7-    // On Darwin, libc++ is installed alongside the compiler in
     8-    // include/c++/v1, so get from '<install>/bin' to '<install>/include/c++/v1'.
     9-    {
     10-      llvm::SmallString<128> P = llvm::StringRef(getDriver().getInstalledDir());
     11-      // Note that P can be relative, so we have to '..' and not parent_path.
     12-      llvm::sys::path::append(P, "..", "include", "c++", "v1");
     13-      addSystemInclude(DriverArgs, CC1Args, P);
     14+    // On Darwin, libc++ can be installed in one of the following two places:
     15+    // 1. Alongside the compiler in         <install>/include/c++/v1
     16+    // 2. In a SDK (or a custom sysroot) in <sysroot>/usr/include/c++/v1
     17+    //
     18+    // The precendence of paths is as listed above, i.e. we take the first path
     19+    // that exists. Also note that we never include libc++ twice -- we take the
     20+    // first path that exists and don't send the other paths to CC1 (otherwise
     21+    // include_next could break).
     22+
     23+    // Check for (1)
     24+    // Get from '<install>/bin' to '<install>/include/c++/v1'.
     25+    // Note that InstallBin can be relative, so we use '..' instead of
     26+    // parent_path.
     27+    llvm::SmallString<128> InstallBin =
     28+        llvm::StringRef(getDriver().getInstalledDir()); // <install>/bin
     29+    llvm::sys::path::append(InstallBin, "..", "include", "c++", "v1");
     30+    if (getVFS().exists(InstallBin)) {
     31+      addSystemInclude(DriverArgs, CC1Args, InstallBin);
     32+      return;
     33+    } else if (DriverArgs.hasArg(options::OPT_v)) {
     34+      llvm::errs() << "ignoring nonexistent directory \"" << InstallBin
     35+                   << "\"\n";
     36     }
     37-    // Also add <sysroot>/usr/include/c++/v1 unless -nostdinc is used,
     38-    // to match the legacy behavior in CC1.
     39-    if (!DriverArgs.hasArg(options::OPT_nostdinc)) {
     40-      llvm::SmallString<128> P = Sysroot;
     41-      llvm::sys::path::append(P, "usr", "include", "c++", "v1");
     42-      addSystemInclude(DriverArgs, CC1Args, P);
     43+
     44+    // Otherwise, check for (2)
     45+    llvm::SmallString<128> SysrootUsr = Sysroot;
     46+    llvm::sys::path::append(SysrootUsr, "usr", "include", "c++", "v1");
     47+    if (getVFS().exists(SysrootUsr)) {
     48+      addSystemInclude(DriverArgs, CC1Args, SysrootUsr);
     49+      return;
     50+    } else if (DriverArgs.hasArg(options::OPT_v)) {
     51+      llvm::errs() << "ignoring nonexistent directory \"" << SysrootUsr
     52+                   << "\"\n";
     53     }
     54+
     55+    // Otherwise, don't add any path.
     56     break;
     57   }
     58 
     59--- a/tools/clang/test/Driver/darwin-header-search-libcxx.cpp
     60+++ b/tools/clang/test/Driver/darwin-header-search-libcxx.cpp
     61@@ -13,39 +13,57 @@
     62 // RUN:   | FileCheck --check-prefix=CHECK-LIBCXX-NONE %s
     63 // CHECK-LIBCXX-NONE: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     64 
     65-// Check with only headers alongside the installation (those should be used,
     66-// but we should still add /usr/include/c++/v1 after to preserve legacy).
     67+// Check with only headers alongside the installation (those should be used).
     68 //
     69 // RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     70 // RUN:     -target x86_64-apple-darwin \
     71 // RUN:     -stdlib=libc++ \
     72 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     73 // RUN:     --sysroot="" \
     74-// RUN:   | FileCheck -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain --check-prefix=CHECK-LIBCXX-TOOLCHAIN-1 %s
     75+// RUN:   | FileCheck -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     76+// RUN:               --check-prefix=CHECK-LIBCXX-TOOLCHAIN-1 %s
     77 // CHECK-LIBCXX-TOOLCHAIN-1: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     78 // CHECK-LIBCXX-TOOLCHAIN-1: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     79-// CHECK-LIBCXX-TOOLCHAIN-1: "-internal-isystem" "/usr/include/c++/v1"
     80+// CHECK-LIBCXX-TOOLCHAIN-1-NOT: "-internal-isystem" "/usr/include/c++/v1"
     81 //
     82 // RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     83 // RUN:     -target x86_64-apple-darwin \
     84 // RUN:     -stdlib=libc++ \
     85 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     86 // RUN:     -isysroot %S/Inputs/basic_darwin_sdk_no_libcxx \
     87-// RUN:   | FileCheck -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain --check-prefix=CHECK-LIBCXX-TOOLCHAIN-2 %s
     88+// RUN:   | FileCheck -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     89+// RUN:               -DSYSROOT=%S/Inputs/basic_darwin_sdk_no_libcxx \
     90+// RUN:               --check-prefix=CHECK-LIBCXX-TOOLCHAIN-2 %s
     91 // CHECK-LIBCXX-TOOLCHAIN-2: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     92 // CHECK-LIBCXX-TOOLCHAIN-2: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     93+// CHECK-LIBCXX-TOOLCHAIN-2-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     94+
     95+// Check with only headers in the sysroot (those should be used).
     96+//
     97+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     98+// RUN:     -target x86_64-apple-darwin \
     99+// RUN:     -stdlib=libc++ \
     100+// RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain_no_libcxx/usr/bin \
     101+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     102+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     103+// RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain_no_libcxx \
     104+// RUN:               --check-prefix=CHECK-LIBCXX-SYSROOT-1 %s
     105+// CHECK-LIBCXX-SYSROOT-1: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     106+// CHECK-LIBCXX-SYSROOT-1: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     107+// CHECK-LIBCXX-SYSROOT-1-NOT: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     108 
     109 // Check with both headers in the sysroot and headers alongside the installation
     110-// (the headers in <sysroot> should be added after the toolchain headers).
     111-// Ensure that both -isysroot and --sysroot work, and that isysroot has precedence.
     112+// (the headers in the toolchain should be preferred over the <sysroot> headers).
     113+// Ensure that both -isysroot and --sysroot work, and that isysroot has precedence
     114+// over --sysroot.
     115 //
     116 // RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     117 // RUN:     -target x86_64-apple-darwin \
     118 // RUN:     -stdlib=libc++ \
     119 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     120 // RUN:     -resource-dir=%S/Inputs/resource_dir \
     121-// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr \
     122-// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr \
     123+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     124+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     125 // RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     126 // RUN:               --check-prefix=CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1 %s
     127 //
     128@@ -54,8 +72,8 @@
     129 // RUN:     -stdlib=libc++ \
     130 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     131 // RUN:     -resource-dir=%S/Inputs/resource_dir \
     132-// RUN:     --sysroot %S/Inputs/basic_darwin_sdk_usr \
     133-// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr \
     134+// RUN:     --sysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     135+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     136 // RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     137 // RUN:               --check-prefix=CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1 %s
     138 //
     139@@ -64,32 +82,46 @@
     140 // RUN:     -stdlib=libc++ \
     141 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     142 // RUN:     -resource-dir=%S/Inputs/resource_dir \
     143-// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr \
     144+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     145 // RUN:     --sysroot %S/Inputs/basic_darwin_sdk_no_libcxx \
     146-// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr \
     147+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     148 // RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     149 // RUN:               --check-prefix=CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1 %s
     150 //
     151 // CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     152 // CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     153-// CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     154+// CHECK-LIBCXX-SYSROOT_AND_TOOLCHAIN-1-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     155 
     156-// Make sure that using -nostdinc will drop the sysroot C++ library include
     157-// path, but not the toolchain one.
     158+// Make sure that using -nostdinc does not drop any C++ library include path.
     159+// This behavior is strange, but it is compatible with the legacy CC1 behavior.
     160 //
     161 // RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     162 // RUN:     -target x86_64-apple-darwin16 \
     163 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     164 // RUN:     -resource-dir=%S/Inputs/resource_dir \
     165-// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr \
     166+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     167 // RUN:     -stdlib=platform \
     168 // RUN:     -nostdinc \
     169-// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr \
     170+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     171 // RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     172-// RUN:               --check-prefix=CHECK-LIBCXX-NOSTDINC %s
     173-// CHECK-LIBCXX-NOSTDINC: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     174-// CHECK-LIBCXX-NOSTDINC: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     175-// CHECK-LIBCXX-NOSTDINC-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     176+// RUN:               --check-prefix=CHECK-LIBCXX-NOSTDINC-1 %s
     177+// CHECK-LIBCXX-NOSTDINC-1: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     178+// CHECK-LIBCXX-NOSTDINC-1-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     179+// CHECK-LIBCXX-NOSTDINC-1: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     180+//
     181+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1 \
     182+// RUN:     -target x86_64-apple-darwin16 \
     183+// RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     184+// RUN:     -resource-dir=%S/Inputs/resource_dir \
     185+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_no_libcxx \
     186+// RUN:     -stdlib=platform \
     187+// RUN:     -nostdinc \
     188+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_no_libcxx \
     189+// RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain \
     190+// RUN:               --check-prefix=CHECK-LIBCXX-NOSTDINC-2 %s
     191+// CHECK-LIBCXX-NOSTDINC-2: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     192+// CHECK-LIBCXX-NOSTDINC-2: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     193+// CHECK-LIBCXX-NOSTDINC-2-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     194 
     195 // Make sure that using -nostdinc++ or -nostdlib will drop both the toolchain
     196 // C++ include path and the sysroot one.
     197@@ -98,7 +130,7 @@
     198 // RUN:     -target x86_64-apple-darwin16 \
     199 // RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain/usr/bin \
     200 // RUN:     -resource-dir=%S/Inputs/resource_dir \
     201-// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr \
     202+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_usr_cxx_v1 \
     203 // RUN:     -stdlib=platform \
     204 // RUN:     -nostdinc++ \
     205 // RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_usr \
     206@@ -121,3 +153,26 @@
     207 // CHECK-LIBCXX-NOSTDLIBINC: "{{[^"]*}}clang{{[^"]*}}" "-cc1"
     208 // CHECK-LIBCXX-NOSTDLIBINC-NOT: "-internal-isystem" "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     209 // CHECK-LIBCXX-NOSTDLIBINC-NOT: "-internal-isystem" "[[SYSROOT]]/usr/include/c++/v1"
     210+
     211+// Make sure we explain that we considered a path but didn't add it when it
     212+// doesn't exist.
     213+//
     214+// RUN: %clang -no-canonical-prefixes %s -fsyntax-only -v 2>&1 \
     215+// RUN:     -target x86_64-apple-darwin \
     216+// RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain_no_libcxx/usr/bin \
     217+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk \
     218+// RUN:     -stdlib=libc++ \
     219+// RUN:   | FileCheck -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain_no_libcxx \
     220+// RUN:               --check-prefix=CHECK-LIBCXX-MISSING-TOOLCHAIN %s
     221+// CHECK-LIBCXX-MISSING-TOOLCHAIN: ignoring nonexistent directory "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     222+//
     223+// RUN: %clang -no-canonical-prefixes %s -fsyntax-only -v 2>&1 \
     224+// RUN:     -target x86_64-apple-darwin \
     225+// RUN:     -ccc-install-dir %S/Inputs/basic_darwin_toolchain_no_libcxx/usr/bin \
     226+// RUN:     -isysroot %S/Inputs/basic_darwin_sdk_no_libcxx \
     227+// RUN:     -stdlib=libc++ \
     228+// RUN:   | FileCheck -DSYSROOT=%S/Inputs/basic_darwin_sdk_no_libcxx \
     229+// RUN:               -DTOOLCHAIN=%S/Inputs/basic_darwin_toolchain_no_libcxx \
     230+// RUN:               --check-prefix=CHECK-LIBCXX-MISSING-BOTH %s
     231+// CHECK-LIBCXX-MISSING-BOTH: ignoring nonexistent directory "[[TOOLCHAIN]]/usr/bin/../include/c++/v1"
     232+// CHECK-LIBCXX-MISSING-BOTH: ignoring nonexistent directory "[[SYSROOT]]/usr/include/c++/v1"