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glibc/glibc-rh1871387-1.patch

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commit 7793ad7a2c00434398aa8bb3f5932e2fdf43536a
Author: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Thu Aug 16 12:12:02 2018 +0530
powerpc: Rearrange little endian specific files
This patch moves little endian specific POWER9 optimization files to
sysdeps/powerpc/powerpc64/le and creates POWER9 ifunc functions
only for little endian.
diff --git a/sysdeps/powerpc/powerpc64/power9/strcmp.S b/sysdeps/powerpc/powerpc64/le/power9/strcmp.S
similarity index 93%
rename from sysdeps/powerpc/powerpc64/power9/strcmp.S
rename to sysdeps/powerpc/powerpc64/le/power9/strcmp.S
index 98243a9d51e1577f..bf057f598ef2aa55 100644
--- a/sysdeps/powerpc/powerpc64/power9/strcmp.S
+++ b/sysdeps/powerpc/powerpc64/le/power9/strcmp.S
@@ -15,7 +15,6 @@
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#ifdef __LITTLE_ENDIAN__
#include <sysdep.h>
#ifndef STRCMP
@@ -30,16 +29,16 @@
as in POWER8 patch and uses vectorised loops after that. */
/* TODO: Change this to actual instructions when minimum binutils is upgraded
- to 2.27. Macros are defined below for these newer instructions in order
+ to 2.27. Macros are defined below for these newer instructions in order
to maintain compatibility. */
-# define VCTZLSBB(r,v) .long (0x10010602 | ((r)<<(32-11)) | ((v)<<(32-21)))
+#define VCTZLSBB(r,v) .long (0x10010602 | ((r)<<(32-11)) | ((v)<<(32-21)))
-# define VEXTUBRX(t,a,b) .long (0x1000070d \
+#define VEXTUBRX(t,a,b) .long (0x1000070d \
| ((t)<<(32-11)) \
| ((a)<<(32-16)) \
| ((b)<<(32-21)) )
-# define VCMPNEZB(t,a,b) .long (0x10000507 \
+#define VCMPNEZB(t,a,b) .long (0x10000507 \
| ((t)<<(32-11)) \
| ((a)<<(32-16)) \
| ((b)<<(32-21)) )
@@ -48,7 +47,7 @@
reg1: Vector to hold next 16 bytes.
reg2: Address to read from.
reg3: Permute control vector. */
-# define GET16BYTES(reg1, reg2, reg3) \
+#define GET16BYTES(reg1, reg2, reg3) \
lvx reg1, 0, reg2; \
vperm v8, v2, reg1, reg3; \
vcmpequb. v8, v0, v8; \
@@ -263,6 +262,3 @@ L(pagecross_nullfound):
b L(pagecross_retdiff)
END (STRCMP)
libc_hidden_builtin_def (strcmp)
-#else
-#include <sysdeps/powerpc/powerpc64/power8/strcmp.S>
-#endif
diff --git a/sysdeps/powerpc/powerpc64/power9/strncmp.S b/sysdeps/powerpc/powerpc64/le/power9/strncmp.S
similarity index 95%
rename from sysdeps/powerpc/powerpc64/power9/strncmp.S
rename to sysdeps/powerpc/powerpc64/le/power9/strncmp.S
index 40be98ff45c9f485..93a79343c6be1099 100644
--- a/sysdeps/powerpc/powerpc64/power9/strncmp.S
+++ b/sysdeps/powerpc/powerpc64/le/power9/strncmp.S
@@ -15,7 +15,6 @@
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#ifdef __LITTLE_ENDIAN__
#include <sysdep.h>
/* Implements the function
@@ -31,16 +30,16 @@
#endif
/* TODO: Change this to actual instructions when minimum binutils is upgraded
- to 2.27. Macros are defined below for these newer instructions in order
+ to 2.27. Macros are defined below for these newer instructions in order
to maintain compatibility. */
-# define VCTZLSBB(r,v) .long (0x10010602 | ((r)<<(32-11)) | ((v)<<(32-21)))
+#define VCTZLSBB(r,v) .long (0x10010602 | ((r)<<(32-11)) | ((v)<<(32-21)))
-# define VEXTUBRX(t,a,b) .long (0x1000070d \
+#define VEXTUBRX(t,a,b) .long (0x1000070d \
| ((t)<<(32-11)) \
| ((a)<<(32-16)) \
| ((b)<<(32-21)) )
-# define VCMPNEZB(t,a,b) .long (0x10000507 \
+#define VCMPNEZB(t,a,b) .long (0x10000507 \
| ((t)<<(32-11)) \
| ((a)<<(32-16)) \
| ((b)<<(32-21)) )
@@ -49,7 +48,7 @@
reg1: Vector to hold next 16 bytes.
reg2: Address to read from.
reg3: Permute control vector. */
-# define GET16BYTES(reg1, reg2, reg3) \
+#define GET16BYTES(reg1, reg2, reg3) \
lvx reg1, 0, reg2; \
vperm v8, v2, reg1, reg3; \
vcmpequb. v8, v0, v8; \
@@ -374,6 +373,3 @@ L(byte_ne_3):
b L(byte_ne_1)
END(STRNCMP)
libc_hidden_builtin_def(strncmp)
-#else
-#include <sysdeps/powerpc/powerpc64/power8/strncmp.S>
-#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 4df6b45c4c1c495a..963ea84dbfa98c74 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -12,7 +12,7 @@ sysdep_routines += memcpy-power8-cached memcpy-power7 memcpy-a2 memcpy-power6 \
strnlen-power8 strnlen-power7 strnlen-ppc64 \
strcasecmp-power7 strcasecmp_l-power7 \
strncase-power7 strncase_l-power7 \
- strncmp-power9 strncmp-power8 strncmp-power7 \
+ strncmp-power8 strncmp-power7 \
strncmp-power4 strncmp-ppc64 \
strchr-power8 strchr-power7 strchr-ppc64 \
strchrnul-power8 strchrnul-power7 strchrnul-ppc64 \
@@ -22,7 +22,7 @@ sysdep_routines += memcpy-power8-cached memcpy-power7 memcpy-a2 memcpy-power6 \
strncat-power8 strncat-power7 strncat-ppc64 \
strncpy-power7 strncpy-ppc64 \
stpncpy-power8 stpncpy-power7 stpncpy-ppc64 \
- strcmp-power9 strcmp-power8 strcmp-power7 strcmp-ppc64 \
+ strcmp-power8 strcmp-power7 strcmp-ppc64 \
strcat-power8 strcat-power7 strcat-ppc64 \
memmove-power7 memmove-ppc64 wordcopy-ppc64 bcopy-ppc64 \
strncpy-power8 strstr-power7 strstr-ppc64 \
@@ -31,6 +31,9 @@ sysdep_routines += memcpy-power8-cached memcpy-power7 memcpy-a2 memcpy-power6 \
strcasecmp-ppc64 strcasecmp-power8 strncase-ppc64 \
strncase-power8
+ifneq (,$(filter %le,$(config-machine)))
+sysdep_routines += strcmp-power9 strncmp-power9
+endif
CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 38a21e478e2527f5..1d374f2ae48165bd 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -112,8 +112,10 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c. */
IFUNC_IMPL (i, name, strncmp,
+#ifdef __LITTLE_ENDIAN__
IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_3_00,
__strncmp_power9)
+#endif
IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strncmp_power8)
IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
@@ -337,9 +339,11 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c. */
IFUNC_IMPL (i, name, strcmp,
+#ifdef __LITTLE_ENDIAN__
IFUNC_IMPL_ADD (array, i, strcmp,
hwcap2 & PPC_FEATURE2_ARCH_3_00,
__strcmp_power9)
+#endif
IFUNC_IMPL_ADD (array, i, strcmp,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strcmp_power8)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S b/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S
index 8b569d38be783316..545e6cee91e61311 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S
@@ -16,11 +16,11 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#if IS_IN (libc)
+#if defined __LITTLE_ENDIAN__ && IS_IN (libc)
#define STRCMP __strcmp_power9
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
-#include <sysdeps/powerpc/powerpc64/power9/strcmp.S>
+#include <sysdeps/powerpc/powerpc64/le/power9/strcmp.S>
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
index b669053166771cae..2422c8d72cfdec83 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
@@ -27,13 +27,17 @@
extern __typeof (strcmp) __strcmp_ppc attribute_hidden;
extern __typeof (strcmp) __strcmp_power7 attribute_hidden;
extern __typeof (strcmp) __strcmp_power8 attribute_hidden;
+# ifdef __LITTLE_ENDIAN__
extern __typeof (strcmp) __strcmp_power9 attribute_hidden;
+# endif
# undef strcmp
libc_ifunc_redirected (__redirect_strcmp, strcmp,
+# ifdef __LITTLE_ENDIAN__
(hwcap2 & PPC_FEATURE2_ARCH_3_00)
? __strcmp_power9 :
+# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strcmp_power8
: (hwcap & PPC_FEATURE_HAS_VSX)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S b/sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S
index 3356f7252771a043..c6f0128379c497b4 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S
@@ -15,11 +15,11 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#if IS_IN (libc)
+#if defined __LITTLE_ENDIAN__ && IS_IN (libc)
#define STRNCMP __strncmp_power9
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
-#include <sysdeps/powerpc/powerpc64/power9/strncmp.S>
+#include <sysdeps/powerpc/powerpc64/le/power9/strncmp.S>
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
index c4a40d1ec7245a3b..9c887ee18186f070 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
@@ -29,14 +29,18 @@ extern __typeof (strncmp) __strncmp_ppc attribute_hidden;
extern __typeof (strncmp) __strncmp_power4 attribute_hidden;
extern __typeof (strncmp) __strncmp_power7 attribute_hidden;
extern __typeof (strncmp) __strncmp_power8 attribute_hidden;
+# ifdef __LITTLE_ENDIAN__
extern __typeof (strncmp) __strncmp_power9 attribute_hidden;
+# endif
# undef strncmp
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc_redirected (__redirect_strncmp, strncmp,
+# ifdef __LITTLE_ENDIAN_
(hwcap2 & PPC_FEATURE2_ARCH_3_00)
? __strncmp_power9 :
+# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strncmp_power8
: (hwcap & PPC_FEATURE_HAS_VSX)
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