[PATCH] D57795: [RISCV] Add FreeBSD targets

[James Clarke via Phabricator via cfe-commits]

jrtc27 created this revision.
jrtc27 added a reviewer: asb.
Herald added subscribers: cfe-commits, rkruppe, rogfer01, shiva0217, kito-cheng, emaste.
Herald added a project: clang.

Repository:
  rC Clang

https://reviews.llvm.org/D57795

Files:
  lib/Basic/Targets.cpp
  lib/Driver/ToolChains/FreeBSD.cpp
  test/Driver/freebsd.c


Index: test/Driver/freebsd.c
===================================================================
--- test/Driver/freebsd.c
+++ test/Driver/freebsd.c
@@ -63,6 +63,15 @@
 // RUN:   | FileCheck --check-prefix=CHECK-MIPSN32EL-LD %s
 // CHECK-MIPSN32EL-LD: ld{{.*}}" {{.*}} "-m" "elf32ltsmipn32_fbsd"
 //
+// Check that RISC-V passes the correct linker emulation.
+//
+// RUN: %clang -target riscv32-freebsd %s -### %s 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-RV32I-LD %s
+// CHECK-RV32I-LD: ld{{.*}}" {{.*}} "-m" "elf32lriscv"
+// RUN: %clang -target riscv64-freebsd %s -### %s 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-RV64I-LD %s
+// CHECK-RV64I-LD: ld{{.*}}" {{.*}} "-m" "elf64lriscv"
+//
 // Check that the new linker flags are passed to FreeBSD
 // RUN: %clang -no-canonical-prefixes -target x86_64-pc-freebsd8 -m32 %s \
 // RUN:   --sysroot=%S/Inputs/multiarch_freebsd64_tree -### 2>&1 \
Index: lib/Driver/ToolChains/FreeBSD.cpp
===================================================================
--- lib/Driver/ToolChains/FreeBSD.cpp
+++ lib/Driver/ToolChains/FreeBSD.cpp
@@ -197,6 +197,14 @@
     else
       CmdArgs.push_back("elf64ltsmip_fbsd");
     break;
+  case llvm::Triple::riscv32:
+    CmdArgs.push_back("-m");
+    CmdArgs.push_back("elf32lriscv");
+    break;
+  case llvm::Triple::riscv64:
+    CmdArgs.push_back("-m");
+    CmdArgs.push_back("elf64lriscv");
+    break;
   default:
     break;
   }
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -372,15 +372,26 @@
     return new AMDGPUTargetInfo(Triple, Opts);
 
   case llvm::Triple::riscv32:
-    // TODO: add cases for FreeBSD, NetBSD, RTEMS once tested.
-    if (os == llvm::Triple::Linux)
+    // TODO: add cases for NetBSD, RTEMS once tested.
+    switch (os) {
+    case llvm::Triple::Linux:
       return new LinuxTargetInfo<RISCV32TargetInfo>(Triple, Opts);
-    return new RISCV32TargetInfo(Triple, Opts);
+    case llvm::Triple::FreeBSD:
+      return new FreeBSDTargetInfo<RISCV32TargetInfo>(Triple, Opts);
+    default:
+      return new RISCV32TargetInfo(Triple, Opts);
+    }
+
   case llvm::Triple::riscv64:
-    // TODO: add cases for FreeBSD, NetBSD, RTEMS once tested.
-    if (os == llvm::Triple::Linux)
+    // TODO: add cases for NetBSD, RTEMS once tested.
+    switch (os) {
+    case llvm::Triple::Linux:
       return new LinuxTargetInfo<RISCV64TargetInfo>(Triple, Opts);
-    return new RISCV64TargetInfo(Triple, Opts);
+    case llvm::Triple::FreeBSD:
+      return new FreeBSDTargetInfo<RISCV64TargetInfo>(Triple, Opts);
+    default:
+      return new RISCV64TargetInfo(Triple, Opts);
+    }
 
   case llvm::Triple::sparc:
     switch (os) {


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