[llvm] r355467 - gn build: Add 32-bit Linux support.

[Peter Collingbourne via llvm-commits]

Author: pcc
Date: Tue Mar  5 17:28:32 2019
New Revision: 355467

URL: http://llvm.org/viewvc/llvm-project?rev=355467&view=rev
Log:
gn build: Add 32-bit Linux support.

Differential Revision: https://reviews.llvm.org/D58839

Modified:
    llvm/trunk/utils/gn/build/toolchain/target_flags.gni
    llvm/trunk/utils/gn/secondary/compiler-rt/target.gni
    llvm/trunk/utils/gn/secondary/llvm/triples.gni

Modified: llvm/trunk/utils/gn/build/toolchain/target_flags.gni
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/gn/build/toolchain/target_flags.gni?rev=355467&r1=355466&r2=355467&view=diff
==============================================================================
--- llvm/trunk/utils/gn/build/toolchain/target_flags.gni (original)
+++ llvm/trunk/utils/gn/build/toolchain/target_flags.gni Tue Mar  5 17:28:32 2019
@@ -12,3 +12,7 @@ if (current_os == "android") {
   ]
   target_ldflags += [ "-static-libstdc++" ]
 }
+
+if (current_cpu == "x86") {
+  target_flags = [ "-m32" ]
+}

Modified: llvm/trunk/utils/gn/secondary/compiler-rt/target.gni
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/gn/secondary/compiler-rt/target.gni?rev=355467&r1=355466&r2=355467&view=diff
==============================================================================
--- llvm/trunk/utils/gn/secondary/compiler-rt/target.gni (original)
+++ llvm/trunk/utils/gn/secondary/compiler-rt/target.gni Tue Mar  5 17:28:32 2019
@@ -6,7 +6,9 @@ if (current_os == "linux" || current_os
   assert(false, "unimplemented current_os " + current_os)
 }
 
-if (current_cpu == "x64") {
+if (current_cpu == "x86") {
+  crt_current_target_arch = "i386"
+} else if (current_cpu == "x64") {
   crt_current_target_arch = "x86_64"
 } else if (current_cpu == "arm64") {
   crt_current_target_arch = "aarch64"

Modified: llvm/trunk/utils/gn/secondary/llvm/triples.gni
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/gn/secondary/llvm/triples.gni?rev=355467&r1=355466&r2=355467&view=diff
==============================================================================
--- llvm/trunk/utils/gn/secondary/llvm/triples.gni (original)
+++ llvm/trunk/utils/gn/secondary/llvm/triples.gni Tue Mar  5 17:28:32 2019
@@ -1,4 +1,8 @@
-if (current_cpu == "x64") {
+if (current_cpu == "x86") {
+  if (current_os == "linux") {
+    llvm_current_triple = "i386-unknown-linux-gnu"
+  }
+} else if (current_cpu == "x64") {
   if (current_os == "freebsd") {
     llvm_current_triple = "x86_64-unknown-freebsd"
   } else if (current_os == "linux") {