diff mbox series

[1/4] package/llvm: add llvm RTTI option

Message ID 20191005093009.1020308-1-romain.naour@gmail.com
State Superseded
Headers show
Series [1/4] package/llvm: add llvm RTTI option | expand

Commit Message

Romain Naour Oct. 5, 2019, 9:30 a.m. UTC 
Allow to build LLVM with run-time type information
when this feature is needed (for example) by mesa3d's
Gallium Nouveau driver or the Clover OpenCL state
tracker when llvm support is enabled in mesa3d.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 package/llvm/Config.in | 12 ++++++++++++
 package/llvm/llvm.mk   |  8 ++++++++
 2 files changed, 20 insertions(+)

Comments

Bernd Kuhls Oct. 5, 2019, 9:36 a.m. UTC | #1 
Am Sat, 05 Oct 2019 11:30:06 +0200 schrieb Romain Naour:

> Allow to build LLVM with run-time type information when this feature is
> needed (for example) by mesa3d's Gallium Nouveau driver or the Clover
> OpenCL state tracker when llvm support is enabled in mesa3d.
> 
> Signed-off-by: Romain Naour
> <romain.naour@gmail.com>

Hi,

this patch does not apply on master, does it need
http://patchwork.ozlabs.org/patch/1095709/ ?

Regards, Bernd
diff mbox series

Patch

diff --git a/package/llvm/Config.in b/package/llvm/Config.in
index 72d920e226..534d3d03f3 100644
--- a/package/llvm/Config.in
+++ b/package/llvm/Config.in
@@ -41,6 +41,18 @@  config BR2_PACKAGE_LLVM_BPF
 	  Build BPF target. Select this option if you are going
 	  to install bcc on the target.
 
+config BR2_PACKAGE_LLVM_RTTI
+	bool "enable rtti"
+	help
+	  Build LLVM with run-time type information. LLVM can be
+	  built without rtti, but turning it off rtti changes the
+	  ABI of C++ programs.
+	  This features is needed to build the Gallium Nouveau
+	  driver or the Clover OpenCL state tracker when llvm
+	  support is enabled.
+
+	  https://llvm.org/docs/HowToSetUpLLVMStyleRTTI.html
+
 endif
 
 comment "llvm needs a toolchain w/ wchar, threads, C++, gcc >= 4.8, host gcc >= 4.8, dynamic library"
diff --git a/package/llvm/llvm.mk b/package/llvm/llvm.mk
index 027c0ad712..e8a755ad2a 100644
--- a/package/llvm/llvm.mk
+++ b/package/llvm/llvm.mk
@@ -235,6 +235,14 @@  LLVM_CONF_OPTS += \
 	-DLLVM_BUILD_TOOLS=OFF
 endif
 
+ifeq ($(BR2_PACKAGE_LLVM_RTTI),y)
+HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
+LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=ON
+else
+HOST_LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
+LLVM_CONF_OPTS += -DLLVM_ENABLE_RTTI=OFF
+endif
+
 # Compiler-rt not in the source tree.
 # llvm runtime libraries are not in the source tree.
 # Polly is not in the source tree.