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