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From e883cafe35f52b3e511dbaf85052f8dddd395a2e Mon Sep 17 00:00:00 2001
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From: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
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Date: Mon, 30 May 2016 18:00:57 -0300
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Subject: [PATCH] powerpc: Fix --disable-multi-arch build on POWER8
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Add missing symbols of stpncpy and strcasestr when multi-arch is
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disabled.
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Fix memset call from strncpy/stpncpy when multi-arch is disabled.
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(cherry picked from commit c24480ce3b5fed848243fc9642932ef2fa670109)
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---
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ChangeLog | 15 +++++++++++++++
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sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S | 3 +++
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sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S | 3 +++
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sysdeps/powerpc/powerpc64/power8/stpncpy.S | 4 ++++
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sysdeps/powerpc/powerpc64/power8/strcasestr.S | 7 +++++--
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sysdeps/powerpc/powerpc64/power8/strncpy.S | 16 ++++++++++++----
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6 files changed, 42 insertions(+), 6 deletions(-)
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diff --git a/ChangeLog b/ChangeLog
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index 8d0e296..c01d1a0 100644
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
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index d5d835d..d9babb5 100644
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--- a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
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+++ b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
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@@ -36,4 +36,7 @@
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TRACEBACK(__stpncpy_power8) \
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END_2(__stpncpy_power8)
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+#undef libc_hidden_builtin_def
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+#define libc_hidden_builtin_def(name)
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+
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#include <sysdeps/powerpc/powerpc64/power8/stpncpy.S>
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
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index ed906a4..f86a0f0 100644
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--- a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
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+++ b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
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@@ -37,4 +37,7 @@
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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+/* memset is used to pad the end of the string. */
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+#define MEMSET __memset_power8
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+
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#include <sysdeps/powerpc/powerpc64/power8/strncpy.S>
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diff --git a/sysdeps/powerpc/powerpc64/power8/stpncpy.S b/sysdeps/powerpc/powerpc64/power8/stpncpy.S
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index 76a1466..e66bd0a 100644
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--- a/sysdeps/powerpc/powerpc64/power8/stpncpy.S
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+++ b/sysdeps/powerpc/powerpc64/power8/stpncpy.S
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@@ -18,3 +18,7 @@
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#define USE_AS_STPNCPY
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#include <sysdeps/powerpc/powerpc64/power8/strncpy.S>
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+
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+weak_alias (__stpncpy, stpncpy)
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+libc_hidden_def (__stpncpy)
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+libc_hidden_builtin_def (stpncpy)
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diff --git a/sysdeps/powerpc/powerpc64/power8/strcasestr.S b/sysdeps/powerpc/powerpc64/power8/strcasestr.S
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index 24b2b76..60015ae 100644
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--- a/sysdeps/powerpc/powerpc64/power8/strcasestr.S
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+++ b/sysdeps/powerpc/powerpc64/power8/strcasestr.S
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@@ -81,7 +81,7 @@
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/* TODO: change this to .machine power8 when the minimum required binutils
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allows it. */
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.machine power7
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-EALIGN (strcasestr, 4, 0)
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+EALIGN (__strcasestr, 4, 0)
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CALL_MCOUNT 2
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mflr r0 /* Load link register LR to r0. */
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std r31, -8(r1) /* Save callers register r31. */
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@@ -527,5 +527,8 @@ L(end):
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cfi_restore(r31)
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mtlr r0 /* Branch to link register. */
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blr
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-END (strcasestr)
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+END (__strcasestr)
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+
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+weak_alias (__strcasestr, strcasestr)
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+libc_hidden_def (__strcasestr)
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libc_hidden_builtin_def (strcasestr)
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diff --git a/sysdeps/powerpc/powerpc64/power8/strncpy.S b/sysdeps/powerpc/powerpc64/power8/strncpy.S
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index 80136cc..05c7d8a 100644
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--- a/sysdeps/powerpc/powerpc64/power8/strncpy.S
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+++ b/sysdeps/powerpc/powerpc64/power8/strncpy.S
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@@ -24,6 +24,16 @@
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# define FUNC_NAME strncpy
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#endif
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+#ifndef MEMSET
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+/* For builds without IFUNC support, local calls should be made to internal
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+ GLIBC symbol (created by libc_hidden_builtin_def). */
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+# ifdef SHARED
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+# define MEMSET __GI_memset
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+# else
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+# define MEMSET memset
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+# endif
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+#endif
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+
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#define FRAMESIZE (FRAME_MIN_SIZE+48)
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/* Implements the function
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@@ -187,7 +197,7 @@ L(zero_pad_start_1):
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stdu r1,-FRAMESIZE(r1)
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cfi_adjust_cfa_offset(FRAMESIZE)
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- bl __memset_power8
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+ bl MEMSET
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nop
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/* Restore the stack frame. */
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@@ -406,8 +416,6 @@ L(zero_pad_start_prepare_1):
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b L(zero_pad_start_1)
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END (FUNC_NAME)
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-#ifdef USE_AS_STPNCPY
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-libc_hidden_def (__stpncpy)
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-#else
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+#ifndef USE_AS_STPNCPY
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libc_hidden_builtin_def (strncpy)
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#endif
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--
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2.1.0
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