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-rw-r--r--main/mariadb/APKBUILD4
-rw-r--r--main/mariadb/ppc-remove-glibc-dep.patch75
2 files changed, 78 insertions, 1 deletions
diff --git a/main/mariadb/APKBUILD b/main/mariadb/APKBUILD
index b5372423fd..7460446c67 100644
--- a/main/mariadb/APKBUILD
+++ b/main/mariadb/APKBUILD
@@ -21,6 +21,7 @@ source="https://downloads.mariadb.org/interstitial/mariadb-$pkgver/source/mariad
$pkgname.initd
fix-mysql-install-db-path.patch
fix-ucontext-check.patch
+ ppc-remove-glibc-dep.patch
"
# secfixes:
@@ -206,4 +207,5 @@ _compat_bench() { _compat mysql-bench mariadb-client; }
sha512sums="cf02044b7531f83618eeb42bbddce7b761c6530d22fc69701b3efe7461a1e932510cee923aa59044dcf0bbb5a9edf7bc76d3568f300b648f4983848f5975f7b2 mariadb-10.1.22.tar.gz
06751768cb00d2e433655635c38d267ef25084a5830ff40e719ac579223c7192dc34b43f919ab6faf480094632327511cbd22456064dde2d04dc15648b9e3b9f mariadb.initd
f85e96490de56aa4e6115f931bf256bef4e1b93cadbe4ac947d6abdc03072bf2d0872e0268ae37cd98edf13538ece73e9f8b6efa8133bab23168a825c5066ab1 fix-mysql-install-db-path.patch
-82fa93411483f5d1b57d978087a891bcab6a011e45c2d79b08d28718f5717994b423fc81d2170dad2fe65303153ac29655a81ce5039e73e37cebb159392a86cf fix-ucontext-check.patch"
+82fa93411483f5d1b57d978087a891bcab6a011e45c2d79b08d28718f5717994b423fc81d2170dad2fe65303153ac29655a81ce5039e73e37cebb159392a86cf fix-ucontext-check.patch
+a352661d19becae717c16ac67a0e47ed93787653851a75d27e7764133b31dc02e18c38dbbce6d3138e4db08da616dfc75a0141865cd042cef669d6afe4463127 ppc-remove-glibc-dep.patch"
diff --git a/main/mariadb/ppc-remove-glibc-dep.patch b/main/mariadb/ppc-remove-glibc-dep.patch
new file mode 100644
index 0000000000..72ae1d809e
--- /dev/null
+++ b/main/mariadb/ppc-remove-glibc-dep.patch
@@ -0,0 +1,75 @@
+From f5cf70d9d1dc7f4cbeffb7fb75cbbe08720e3873 Mon Sep 17 00:00:00 2001
+From: Gustavo Romero <gromero@br.ibm.com>
+Date: Sun, 26 Mar 2017 15:08:15 +0000
+Subject: [PATCH] Remove dependency on glibc on PPC
+
+Remove dependency on glibc by using gcc builtin function and no glibc
+wrappers.
+
+Currently there are no surrogates in musl for:
+
+ __ppc_get_timebase()
+ __ppc_set_ppr_low()
+ __ppc_set_ppr_med()
+
+however glibc __ppc_get_timebase() is just a wrapper for GCC builtin
+__builtin_get_timebase() available since GCC 4.8 [1], so assuming that
+aports on ppc64le will never be built using GCC < 4.8 we can just
+switch directly to the GCC builtin function.
+
+Also __ppc_set_ppr_{low,med}() are not available on musl but both
+are simple glibc wrappers on a single asm instruction, hence there
+is no harm in using asm directly instead. Actually, using asm
+directly was the first solution adopted in MariaDB [2].
+
+[1] https://goo.gl/jxLV6O
+[2] https://goo.gl/9bjuVC
+
+--- a/storage/xtradb/include/ut0ut.h
++++ b/storage/xtradb/include/ut0ut.h
+@@ -86,8 +86,7 @@
+ independent way by using YieldProcessor. */
+ # define UT_RELAX_CPU() YieldProcessor()
+ # elif defined(__powerpc__)
+-#include <sys/platform/ppc.h>
+-# define UT_RELAX_CPU() __ppc_get_timebase()
++# define UT_RELAX_CPU() __builtin_ppc_get_timebase()
+ # else
+ # define UT_RELAX_CPU() ((void)0) /* avoid warning for an empty statement */
+ # endif
+@@ -101,9 +100,8 @@
+ #endif
+
+ # if defined(HAVE_HMT_PRIORITY_INSTRUCTION)
+-#include <sys/platform/ppc.h>
+-# define UT_LOW_PRIORITY_CPU() __ppc_set_ppr_low()
+-# define UT_RESUME_PRIORITY_CPU() __ppc_set_ppr_med()
++# define UT_LOW_PRIORITY_CPU() __asm__ __volatile__ ("or 1,1,1")
++# define UT_RESUME_PRIORITY_CPU() __asm__ __volatile__ ("or 2,2,2")
+ # else
+ # define UT_LOW_PRIORITY_CPU() ((void)0)
+ # define UT_RESUME_PRIORITY_CPU() ((void)0)
+--- a/storage/innobase/include/ut0ut.h
++++ b/storage/innobase/include/ut0ut.h
+@@ -89,8 +89,7 @@
+ independent way by using YieldProcessor. */
+ # define UT_RELAX_CPU() YieldProcessor()
+ # elif defined(__powerpc__)
+-#include <sys/platform/ppc.h>
+-# define UT_RELAX_CPU() __ppc_get_timebase()
++# define UT_RELAX_CPU() __builtin_ppc_get_timebase()
+ # else
+ # define UT_RELAX_CPU() ((void)0) /* avoid warning for an empty statement */
+ # endif
+@@ -104,9 +103,8 @@
+ #endif
+
+ # if defined(HAVE_HMT_PRIORITY_INSTRUCTION)
+-#include <sys/platform/ppc.h>
+-# define UT_LOW_PRIORITY_CPU() __ppc_set_ppr_low()
+-# define UT_RESUME_PRIORITY_CPU() __ppc_set_ppr_med()
++# define UT_LOW_PRIORITY_CPU() __asm__ __volatile__ ("or 1,1,1")
++# define UT_RESUME_PRIORITY_CPU() __asm__ __volatile__ ("or 2,2,2")
+ # else
+ # define UT_LOW_PRIORITY_CPU() ((void)0)
+ # define UT_RESUME_PRIORITY_CPU() ((void)0)