[PATCHv2] powerpc: Add support for POWER10

[Tulio Magno Quites Machado Filho]

Changes since v1:
 - Remove 2 directories from Implies.  Added another directory that was
   missing.
 - Listed power10 in preconfigure.ac

---8<---

1. Add the directories to hold POWER10 files.

2. Print the correct values for AT_PLATFORM and AT_BASE_PLATFORM.

3. Let submachine=power10 be set automatically.
---
 sysdeps/powerpc/dl-procinfo.h                         | 11 ++++++++++-
 sysdeps/powerpc/powerpc32/power10/Implies             |  2 ++
 .../powerpc/powerpc32/power10/fpu/multiarch/Implies   |  1 +
 sysdeps/powerpc/powerpc32/power10/multiarch/Implies   |  1 +
 sysdeps/powerpc/powerpc64/be/power10/Implies          |  2 ++
 sysdeps/powerpc/powerpc64/be/power10/fpu/Implies      |  1 +
 .../powerpc64/be/power10/fpu/multiarch/Implies        |  1 +
 .../powerpc/powerpc64/be/power10/multiarch/Implies    |  1 +
 sysdeps/powerpc/powerpc64/le/power10/Implies          |  2 ++
 sysdeps/powerpc/powerpc64/le/power10/fpu/Implies      |  1 +
 .../powerpc64/le/power10/fpu/multiarch/Implies        |  1 +
 .../powerpc/powerpc64/le/power10/multiarch/Implies    |  1 +
 sysdeps/powerpc/preconfigure                          |  2 +-
 sysdeps/powerpc/preconfigure.ac                       |  2 +-
 14 files changed, 26 insertions(+), 3 deletions(-)
 create mode 100644 sysdeps/powerpc/powerpc32/power10/Implies
 create mode 100644 sysdeps/powerpc/powerpc32/power10/fpu/multiarch/Implies
 create mode 100644 sysdeps/powerpc/powerpc32/power10/multiarch/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/be/power10/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/be/power10/fpu/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/be/power10/fpu/multiarch/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/be/power10/multiarch/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/le/power10/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/le/power10/fpu/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/le/power10/fpu/multiarch/Implies
 create mode 100644 sysdeps/powerpc/powerpc64/le/power10/multiarch/Implies

diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h
index 9ae85f46ec..497dc568e9 100644
--- a/sysdeps/powerpc/dl-procinfo.h
+++ b/sysdeps/powerpc/dl-procinfo.h
@@ -37,7 +37,7 @@
 #define HWCAP_IMPORTANT		(PPC_FEATURE_HAS_ALTIVEC \
 				+ PPC_FEATURE_HAS_DFP)
 
-#define _DL_PLATFORMS_COUNT	15
+#define _DL_PLATFORMS_COUNT	16
 
 #define _DL_FIRST_PLATFORM	32
 /* Mask to filter out platforms.  */
@@ -60,6 +60,7 @@
 #define PPC_PLATFORM_PPC476		12
 #define PPC_PLATFORM_POWER8		13
 #define PPC_PLATFORM_POWER9		14
+#define PPC_PLATFORM_POWER10		15
 
 static inline const char *
 __attribute__ ((unused))
@@ -91,6 +92,14 @@ _dl_string_platform (const char *str)
       str += 5;
       switch (*str)
 	{
+	case '1':
+	  if (str[1] == '0')
+	    {
+	      ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER10;
+	    }
+	  else
+	    return -1;
+	  break;
 	case '4':
 	  ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER4;
 	  break;
diff --git a/sysdeps/powerpc/powerpc32/power10/Implies b/sysdeps/powerpc/powerpc32/power10/Implies
new file mode 100644
index 0000000000..b298aca71f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power10/Implies
@@ -0,0 +1,2 @@
+powerpc/powerpc32/power9/fpu
+powerpc/powerpc32/power9
diff --git a/sysdeps/powerpc/powerpc32/power10/fpu/multiarch/Implies b/sysdeps/powerpc/powerpc32/power10/fpu/multiarch/Implies
new file mode 100644
index 0000000000..1ffddd1cda
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power10/fpu/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc32/power9/fpu/multiarch
diff --git a/sysdeps/powerpc/powerpc32/power10/multiarch/Implies b/sysdeps/powerpc/powerpc32/power10/multiarch/Implies
new file mode 100644
index 0000000000..46363b5207
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power10/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc32/power9/multiarch
diff --git a/sysdeps/powerpc/powerpc64/be/power10/Implies b/sysdeps/powerpc/powerpc64/be/power10/Implies
new file mode 100644
index 0000000000..5aea9bc144
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/be/power10/Implies
@@ -0,0 +1,2 @@
+powerpc/powerpc64/be/power9/fpu
+powerpc/powerpc64/be/power9
diff --git a/sysdeps/powerpc/powerpc64/be/power10/fpu/Implies b/sysdeps/powerpc/powerpc64/be/power10/fpu/Implies
new file mode 100644
index 0000000000..19b2a318e2
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/be/power10/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/be/power9/fpu
diff --git a/sysdeps/powerpc/powerpc64/be/power10/fpu/multiarch/Implies b/sysdeps/powerpc/powerpc64/be/power10/fpu/multiarch/Implies
new file mode 100644
index 0000000000..a336feb55b
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/be/power10/fpu/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/be/power9/fpu/multiarch
diff --git a/sysdeps/powerpc/powerpc64/be/power10/multiarch/Implies b/sysdeps/powerpc/powerpc64/be/power10/multiarch/Implies
new file mode 100644
index 0000000000..b4c0f0a58a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/be/power10/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/be/power9/multiarch
diff --git a/sysdeps/powerpc/powerpc64/le/power10/Implies b/sysdeps/powerpc/powerpc64/le/power10/Implies
new file mode 100644
index 0000000000..9e1b787348
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/power10/Implies
@@ -0,0 +1,2 @@
+powerpc/powerpc64/le/power9/fpu
+powerpc/powerpc64/le/power9
diff --git a/sysdeps/powerpc/powerpc64/le/power10/fpu/Implies b/sysdeps/powerpc/powerpc64/le/power10/fpu/Implies
new file mode 100644
index 0000000000..1b3525a0d7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/power10/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/le/power9/fpu
diff --git a/sysdeps/powerpc/powerpc64/le/power10/fpu/multiarch/Implies b/sysdeps/powerpc/powerpc64/le/power10/fpu/multiarch/Implies
new file mode 100644
index 0000000000..189beb801d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/power10/fpu/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/le/power9/fpu/multiarch
diff --git a/sysdeps/powerpc/powerpc64/le/power10/multiarch/Implies b/sysdeps/powerpc/powerpc64/le/power10/multiarch/Implies
new file mode 100644
index 0000000000..e6e5fc887e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/le/power10/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/le/power9/multiarch
diff --git a/sysdeps/powerpc/preconfigure b/sysdeps/powerpc/preconfigure
index deac5a41e2..dfe8e20399 100644
--- a/sysdeps/powerpc/preconfigure
+++ b/sysdeps/powerpc/preconfigure
@@ -56,7 +56,7 @@ fi
 
     ;;
 
-  a2|970|power[4-9]|power5x|power6+)
+  a2|970|power[4-9]|power5x|power6+|power10)
     submachine=${archcpu}
     if ${libc_cv_cc_submachine+:} false; then :
   $as_echo_n "(cached) " >&6
diff --git a/sysdeps/powerpc/preconfigure.ac b/sysdeps/powerpc/preconfigure.ac
index e6a5ae93a5..6c63bd8257 100644
--- a/sysdeps/powerpc/preconfigure.ac
+++ b/sysdeps/powerpc/preconfigure.ac
@@ -46,7 +46,7 @@ case "${machine}:${submachine}" in
     AC_CACHE_VAL(libc_cv_cc_submachine,libc_cv_cc_submachine="")
     ;;
 
-  a2|970|power[[4-9]]|power5x|power6+)
+  a2|970|power[[4-9]]|power5x|power6+|power10)
     submachine=${archcpu}
     AC_CACHE_VAL(libc_cv_cc_submachine,libc_cv_cc_submachine="")
     ;;
-- 
2.25.4