qemu/0013-i386-linux-user-NPTL-support.patch

65 lines
2.0 KiB
Diff

From f44ecd4fcdb8e02e6bd58201a81f047d1e109508 Mon Sep 17 00:00:00 2001
From: Ulrich Hecht <uli@suse.de>
Date: Thu, 16 Apr 2009 15:14:12 +0200
Subject: [PATCH 13/17] i386-linux-user NPTL support
Makes NPTL binaries run by implementing TLS.
Signed-off-by: Ulrich Hecht <uli@suse.de>
---
configure | 1 +
linux-user/syscall.c | 16 ++++++++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 598e8e1..95de763 100755
--- a/configure
+++ b/configure
@@ -2910,6 +2910,7 @@ TARGET_ABI_DIR=""
case "$target_arch2" in
i386)
target_phys_bits=32
+ target_nptl="yes"
;;
x86_64)
TARGET_BASE_ARCH=i386
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 81bf1f0..1a98433 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3792,8 +3792,14 @@ static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
ts->child_tidptr = child_tidptr;
}
- if (nptl_flags & CLONE_SETTLS)
+ if (nptl_flags & CLONE_SETTLS) {
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+ do_set_thread_area(new_env, newtls);
+ cpu_x86_load_seg(new_env, R_GS, new_env->segs[R_GS].selector);
+#else
cpu_set_tls (new_env, newtls);
+#endif
+ }
/* Grab a mutex so that thread setup appears atomic. */
pthread_mutex_lock(&clone_lock);
@@ -3867,8 +3873,14 @@ static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
if (flags & CLONE_PARENT_SETTID)
put_user_u32(gettid(), parent_tidptr);
ts = (TaskState *)env->opaque;
- if (flags & CLONE_SETTLS)
+ if (flags & CLONE_SETTLS) {
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+ do_set_thread_area(env, newtls);
+ cpu_x86_load_seg(env, R_GS, env->segs[R_GS].selector);
+#else
cpu_set_tls (env, newtls);
+#endif
+ }
if (flags & CLONE_CHILD_CLEARTID)
ts->child_tidptr = child_tidptr;
#endif
--
1.7.1