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From 50859f3577418cc42f76e1319e699202a615bbe1 Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Sat, 31 Oct 2015 19:45:04 +0100
Subject: [PATCH] Fixes for musl libc.
- add musl libc detection (prevents configure error)
- adjust preload and symbol names (based on the OpenWrt
patch, see [1])
[1] https://dev.openwrt.org/browser/trunk/package/devel/valgrind/patches/200-musl_fix.patch?rev=46302
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
configure.ac | 16 ++++++++++++++--
coregrind/vg_preloaded.c | 2 +-
include/pub_tool_redir.h | 9 ++++++++-
3 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/configure.ac b/configure.ac
index 8ab7f9b..e865bf5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1009,6 +1009,13 @@ if test x$VGCONF_PLATFORM_PRI_CAPS = xX86_SOLARIS \
GLIBC_VERSION="solaris"
fi
+# GLIBC_VERSION is empty if a musl libc is used, so use the toolchain tuple
+# in this case.
+if test x$GLIBC_VERSION = x; then
+ if $CC -dumpmachine | grep -q musl; then
+ GLIBC_VERSION=musl
+ fi
+fi
AC_MSG_CHECKING([the glibc version])
@@ -1064,10 +1071,15 @@ case "${GLIBC_VERSION}" in
# DEFAULT_SUPP set in host_os switch-case above.
# No other suppression file is used.
;;
+ musl)
+ AC_MSG_RESULT(Musl)
+ AC_DEFINE([MUSL_LIBC], 1, [Define to 1 if you're using Musl libc])
+ # no DEFAULT_SUPP file yet for musl libc.
+ ;;
2.0|2.1|*)
AC_MSG_RESULT([unsupported version ${GLIBC_VERSION}])
- AC_MSG_ERROR([Valgrind requires glibc version 2.2 or later,])
- AC_MSG_ERROR([Darwin libc, Bionic libc or Solaris libc])
+ AC_MSG_ERROR([Valgrind requires glibc version 2.2 or later, uClibc,])
+ AC_MSG_ERROR([musl libc, Darwin libc, Bionic libc or Solaris libc])
;;
esac
diff --git a/coregrind/vg_preloaded.c b/coregrind/vg_preloaded.c
index 2ea7a7a..7b51aba 100644
--- a/coregrind/vg_preloaded.c
+++ b/coregrind/vg_preloaded.c
@@ -56,7 +56,7 @@
void VG_NOTIFY_ON_LOAD(freeres)( void );
void VG_NOTIFY_ON_LOAD(freeres)( void )
{
-# if !defined(__UCLIBC__) \
+# if !defined(__UCLIBC__) && !defined(MUSL_LIBC) \
&& !defined(VGPV_arm_linux_android) \
&& !defined(VGPV_x86_linux_android) \
&& !defined(VGPV_mips32_linux_android) \
diff --git a/include/pub_tool_redir.h b/include/pub_tool_redir.h
index bac00d7..babcf9a 100644
--- a/include/pub_tool_redir.h
+++ b/include/pub_tool_redir.h
@@ -242,8 +242,11 @@
/* --- Soname of the standard C library. --- */
#if defined(VGO_linux) || defined(VGO_solaris)
+# if defined(MUSL_LIBC)
+# define VG_Z_LIBC_SONAME libcZdZa // libc.*
+#else
# define VG_Z_LIBC_SONAME libcZdsoZa // libc.so*
-
+#endif
#elif defined(VGO_darwin) && (DARWIN_VERS <= DARWIN_10_6)
# define VG_Z_LIBC_SONAME libSystemZdZaZddylib // libSystem.*.dylib
@@ -274,7 +277,11 @@
/* --- Soname of the pthreads library. --- */
#if defined(VGO_linux)
+# if defined(MUSL_LIBC)
+# define VG_Z_LIBPTHREAD_SONAME libcZdZa // libc.*
+#else
# define VG_Z_LIBPTHREAD_SONAME libpthreadZdsoZd0 // libpthread.so.0
+#endif
#elif defined(VGO_darwin)
# define VG_Z_LIBPTHREAD_SONAME libSystemZdZaZddylib // libSystem.*.dylib
#elif defined(VGO_solaris)
--
2.1.4
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