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[Qemu-devel] [PATCH] i386-linux-user NPTL support
From: |
Ulrich Hecht |
Subject: |
[Qemu-devel] [PATCH] i386-linux-user NPTL support |
Date: |
Thu, 20 Aug 2009 18:19:03 +0200 |
Makes NPTL binaries run by implementing TLS.
Signed-off-by: Ulrich Hecht <address@hidden>
---
configure | 1 +
linux-user/syscall.c | 16 ++++++++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 824b21c..c3c5d4a 100755
--- a/configure
+++ b/configure
@@ -1894,6 +1894,7 @@ 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 5778e32..bbaec3d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -3730,8 +3730,14 @@ 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);
@@ -3804,8 +3810,14 @@ 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
--
1.6.4
- [Qemu-devel] [PATCH] i386-linux-user NPTL support,
Ulrich Hecht <=