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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
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')
-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 64586d8..e3fc051 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 952398b..c2c2f9f 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 a0d2941..f5dfb7d 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;