.travis.yml: Cache Linux/GCC 'non-debug profile' jobs together

These jobs build different components but use the same
host features. Put them in the same cache bucket.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

.travis.yml

@@ -101,22 +101,27 @@ matrix:
   include:
     - env:
         - CONFIG="--disable-system --static"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
 
 
     # we split the system builds as it takes a while to build them all
     - env:
         - CONFIG="--disable-user --target-list=${MAIN_SOFTMMU_TARGETS}"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
 
 
     - env:
         - CONFIG="--disable-user --target-list-exclude=${MAIN_SOFTMMU_TARGETS}"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
 
 
     # Just build tools and run minimal unit and softfloat checks
     - env:
         - BASE_CONFIG="--enable-tools"
         - CONFIG="--disable-user --disable-system"
         - TEST_CMD="make check-unit check-softfloat -j3"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
+
 
     - env:
         - CONFIG="--enable-debug --enable-debug-tcg --disable-user"
@@ -136,6 +141,7 @@ matrix:
     # Module builds are mostly of interest to major distros
     - env:
         - CONFIG="--enable-modules --target-list=${MAIN_SOFTMMU_TARGETS}"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
 
 
     # Alternate coroutines implementations are only really of interest to KVM users
@@ -155,6 +161,7 @@ matrix:
         - BUILD_DIR="out-of-tree/build/dir" SRC_DIR="../../.."
         - BASE_CONFIG="--enable-tools --enable-docs"
         - CONFIG="--target-list=x86_64-softmmu,aarch64-linux-user"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
       addons:
         apt:
           packages:
@@ -196,6 +203,7 @@ matrix:
     # We manually include builds which we disable "make check" for
     - env:
         - CONFIG="--without-default-devices --disable-user"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
         - TEST_CMD=""
 
 
@@ -239,13 +247,15 @@ matrix:
     # Python builds
     - env:
         - CONFIG="--target-list=x86_64-softmmu"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
       language: python
       python:
         - "3.4"
 
 
     - env:
         - CONFIG="--target-list=x86_64-softmmu"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
       language: python
       python:
         - "3.6"
@@ -317,8 +327,11 @@ matrix:
     - env:
         - CONFIG="--disable-system"
         - TEST_CMD="make -j3 check-tcg V=1"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
+
 
     # Run check-tcg against softmmu targets
     - env:
         - CONFIG="--target-list=xtensa-softmmu,arm-softmmu,aarch64-softmmu,alpha-softmmu"
         - TEST_CMD="make -j3 check-tcg V=1"
+        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"