[Buildroot] [git commit] toolchain: control vendor part in GNU_TARGET_NAME
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Sun Apr 6 12:16:06 UTC 2014
commit: http://git.buildroot.net/buildroot/commit/?id=65c2400ff251397db930e90c65c51d714d00fa96
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master
This option allows to customize the "vendor" part of the
toolchain tuple, where the toolchain tuple has the form
<arch>-<vendor>-<os>-<libc>. Use this option in situations
where gcc might make different decisions based on the vendor
part of the tuple.
[Thomas: move the config option in a slightly different place, so that
it does not appear between the C library selection and the C library
options.]
Signed-off-by: "Noam Camus" <noamc at ezchip.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
package/Makefile.in | 17 ++++++++++++++++-
toolchain/toolchain-buildroot/Config.in | 17 +++++++++++++++++
2 files changed, 33 insertions(+), 1 deletions(-)
diff --git a/package/Makefile.in b/package/Makefile.in
index 1f5cbcd..0830cd5 100644
--- a/package/Makefile.in
+++ b/package/Makefile.in
@@ -20,8 +20,23 @@ endif
MAKE1:=$(HOSTMAKE) -j1
MAKE:=$(HOSTMAKE) $(if $(PARALLEL_JOBS),-j$(PARALLEL_JOBS))
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
+TARGET_VENDOR = $(call qstrip,$(BR2_TOOLCHAIN_BUILDROOT_VENDOR))
+else
+TARGET_VENDOR = buildroot
+endif
+
+# Sanity checks
+ifeq ($(TARGET_VENDOR),)
+$(error BR2_TOOLCHAIN_BUILDROOT_VENDOR is not allowed to be empty)
+endif
+ifeq ($(TARGET_VENDOR),unknown)
+$(error BR2_TOOLCHAIN_BUILDROOT_VENDOR cannot be 'unknown'. \
+ It might be confused with the native toolchain)
+endif
+
# Compute GNU_TARGET_NAME
-GNU_TARGET_NAME=$(ARCH)-buildroot-$(TARGET_OS)-$(LIBC)$(ABI)
+GNU_TARGET_NAME=$(ARCH)-$(TARGET_VENDOR)-$(TARGET_OS)-$(LIBC)$(ABI)
# Blackfin FLAT needs uclinux
ifeq ($(BR2_bfin)$(BR2_BINFMT_FLAT),yy)
diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
index 07db50b..42166d2 100644
--- a/toolchain/toolchain-buildroot/Config.in
+++ b/toolchain/toolchain-buildroot/Config.in
@@ -1,6 +1,23 @@
# Config entries for internal toolchain backend
if BR2_TOOLCHAIN_BUILDROOT
+
+config BR2_TOOLCHAIN_BUILDROOT_VENDOR
+ string "custom toolchain vendor name"
+ default "buildroot"
+ help
+ This option allows to customize the "vendor" part of the
+ toolchain tuple, where the toolchain tuple has the form
+ <arch>-<vendor>-<os>-<libc>. The default value, "buildroot",
+ is fine for most cases, except in very specific situations
+ where gcc might make different decisions based on the vendor
+ part of the tuple. The value "unknown" is not allowed, as the
+ cross-compiling toolchain might then be confused with the
+ native toolchain when the target and host architecture are
+ identical. The value can not be empty either.
+
+ If you're not sure, just leave the default "buildroot" value.
+
source "package/linux-headers/Config.in.host"
choice
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