musl: Mark not EXPERIMENTAL

Musl was marked experimental in commit 08d91d41 ("musl: config is broken
for !EXPERIMENTAL"). Most of the reasoning for that change no longer
applies and as it's been about 8 years it's time to let musl loose on
the world. Drop the `depends on EXPERIMENTAL` and update the sample
configs for aarch64 and x86_64.

For powerpc64 the ABI needs to be elfv2. Enforce this via the powerpc
config.  Add a sample configuration for powerpc-unknown-linux-musl.

Signed-off-by: Chris Packham <judge.packham@gmail.com>

7 files changed, 19 insertions, 6 deletions

diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index c95f023f..c25a721b 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -126,6 +126,7 @@ jobs:
           "mips64-unknown-linux-gnu",
           "powerpc-unknown-linux-gnu",
           "powerpc64-unknown-linux-gnu",
+          "powerpc64-unknown-linux-musl",
           "riscv32-unknown-elf",
           "riscv64-unknown-elf",
           "s390-unknown-linux-gnu",
diff --git a/config/arch/powerpc.in b/config/arch/powerpc.in
index 26954c88..dddd73a6 100644
--- a/config/arch/powerpc.in
+++ b/config/arch/powerpc.in
@@ -19,9 +19,10 @@
 
 config ARCH_powerpc_ABI
     string
-    default ""     if ARCH_powerpc_ABI_DEFAULT
-    default "eabi" if ARCH_powerpc_ABI_EABI
-    default "spe"  if ARCH_powerpc_ABI_SPE
+    default ""      if ARCH_powerpc_ABI_DEFAULT
+    default "eabi"  if ARCH_powerpc_ABI_EABI
+    default "spe"   if ARCH_powerpc_ABI_SPE
+    default "elfv2" if ARCH_64 && LIBC_MUSL
 
 choice
     bool
diff --git a/config/libc/musl.in b/config/libc/musl.in
index 427dd699..71d9c990 100644
--- a/config/libc/musl.in
+++ b/config/libc/musl.in
@@ -1,7 +1,6 @@
 # musl second-part option
 
 ## depends on ! WINDOWS && ! BARE_METAL
-## depends on EXPERIMENTAL
 ## select LIBC_SUPPORT_THREADS_NATIVE
 ## select CC_CORE_NEEDED
 
diff --git a/samples/aarch64-unknown-linux-musl/crosstool.config b/samples/aarch64-unknown-linux-musl/crosstool.config
index c1b6a9c6..ceb87d54 100644
--- a/samples/aarch64-unknown-linux-musl/crosstool.config
+++ b/samples/aarch64-unknown-linux-musl/crosstool.config
@@ -1,5 +1,4 @@
 CT_CONFIG_VERSION="4"
-CT_EXPERIMENTAL=y
 CT_ARCH_ARM=y
 CT_ARCH_64=y
 CT_TARGET_VENDOR=""
diff --git a/samples/powerpc64-unknown-linux-musl/crosstool.config b/samples/powerpc64-unknown-linux-musl/crosstool.config
new file mode 100644
index 00000000..bd97e306
--- /dev/null
+++ b/samples/powerpc64-unknown-linux-musl/crosstool.config
@@ -0,0 +1,11 @@
+CT_CONFIG_VERSION="4"
+CT_ARCH_POWERPC=y
+CT_ARCH_64=y
+CT_ARCH_ABI="elfv2"
+CT_KERNEL_LINUX=y
+CT_BINUTILS_PLUGINS=y
+CT_LIBC_MUSL=y
+CT_CC_LANG_CXX=y
+CT_DEBUG_GDB=y
+# CT_GDB_CROSS_PYTHON is not set
+CT_GDB_NATIVE=y
diff --git a/samples/powerpc64-unknown-linux-musl/reported.by b/samples/powerpc64-unknown-linux-musl/reported.by
new file mode 100644
index 00000000..15241934
--- /dev/null
+++ b/samples/powerpc64-unknown-linux-musl/reported.by
@@ -0,0 +1,3 @@
+reporter_name="Chris Packham <judge.packham@gmail.com>"
+reporter_url="http://crosstool-ng.org/"
+reporter_comment=""
diff --git a/samples/x86_64-multilib-linux-musl/crosstool.config b/samples/x86_64-multilib-linux-musl/crosstool.config
index 0fe7cda2..91813a62 100644
--- a/samples/x86_64-multilib-linux-musl/crosstool.config
+++ b/samples/x86_64-multilib-linux-musl/crosstool.config
@@ -1,5 +1,4 @@
 CT_CONFIG_VERSION="4"
-CT_EXPERIMENTAL=y
 CT_ARCH_X86=y
 CT_MULTILIB=y
 CT_ARCH_64=y