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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-08-01 00:10:03 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-08-01 00:10:03 +0200
commit42fc12ef7345855ed6e2f23f863a16f43c2a8078 (patch)
tree2db81f345f73ecdfb94bba9936a9dd0661b40bc8 /sysdeps/mach/hurd
parentd4b54bdff0064c36097dd5468f8aca9257472e9a (diff)
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hurd: Fix exec usage of mach_setup_thread
Exec needs that mach_setup_thread does *not* set up TLS since it works on
another task, so we have to split this into mach_setup_tls.

	* mach/mach.h (__mach_setup_tls, mach_setup_tls): Add prototypes.
	* mach/setup-thread.c (__mach_setup_thread): Move TLS setup to...
	(__mach_setup_tls): ... new function.
	(mach_setup_tls): New alias.
	* hurd/hurdsig.c (_hurdsig_init): Call __mach_setup_tls after
	__mach_setup_thread.
	* sysdeps/mach/hurd/profil.c (update_waiter): Likewise.
	* sysdeps/mach/hurd/setitimer.c (setitimer_locked): Likewise.
	* mach/Versions [libc] (mach_setup_tls): Add symbol.
	* sysdeps/mach/hurd/i386/libc.abilist (mach_setup_tls): Likewise.
Diffstat (limited to 'sysdeps/mach/hurd')
-rw-r--r--sysdeps/mach/hurd/i386/libc.abilist1
-rw-r--r--sysdeps/mach/hurd/profil.c2
-rw-r--r--sysdeps/mach/hurd/setitimer.c3
3 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/i386/libc.abilist b/sysdeps/mach/hurd/i386/libc.abilist
index 64586d828d..e3fc05137b 100644
--- a/sysdeps/mach/hurd/i386/libc.abilist
+++ b/sysdeps/mach/hurd/i386/libc.abilist
@@ -1228,6 +1228,7 @@ GLIBC_2.2.6 mach_port_deallocate F
 GLIBC_2.2.6 mach_port_insert_right F
 GLIBC_2.2.6 mach_reply_port F
 GLIBC_2.2.6 mach_setup_thread F
+GLIBC_2.2.6 mach_setup_tls F
 GLIBC_2.2.6 mach_task_self F
 GLIBC_2.2.6 mach_thread_self F
 GLIBC_2.2.6 madvise F
diff --git a/sysdeps/mach/hurd/profil.c b/sysdeps/mach/hurd/profil.c
index 952398b4fa..c2c2f9f119 100644
--- a/sysdeps/mach/hurd/profil.c
+++ b/sysdeps/mach/hurd/profil.c
@@ -70,6 +70,8 @@ update_waiter (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
       if (! err)
 	err = __mach_setup_thread (__mach_task_self (), profile_thread,
 				   &profile_waiter, NULL, NULL);
+      if (! err)
+	err = __mach_setup_tls(profile_thread);
     }
   else
     err = 0;
diff --git a/sysdeps/mach/hurd/setitimer.c b/sysdeps/mach/hurd/setitimer.c
index a0d294162b..f5dfb7da84 100644
--- a/sysdeps/mach/hurd/setitimer.c
+++ b/sysdeps/mach/hurd/setitimer.c
@@ -221,11 +221,12 @@ setitimer_locked (const struct itimerval *new, struct itimerval *old,
 	    goto out;
 	  _hurd_itimer_thread_stack_base = 0; /* Anywhere.  */
 	  _hurd_itimer_thread_stack_size = __vm_page_size; /* Small stack.  */
-	  if (err = __mach_setup_thread (__mach_task_self (),
+	  if ((err = __mach_setup_thread (__mach_task_self (),
 					 _hurd_itimer_thread,
 					 &timer_thread,
 					 &_hurd_itimer_thread_stack_base,
 					 &_hurd_itimer_thread_stack_size))
+	      || (err = __mach_setup_tls(_hurd_itimer_thread)))
 	    {
 	      __thread_terminate (_hurd_itimer_thread);
 	      _hurd_itimer_thread = MACH_PORT_NULL;