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* sysdeps/alpha/tls.h (tcbhead_t): Add private. (TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN, TLS_TCB_SIZE, TLS_PRE_TCB_SIZE, TLS_TCB_ALIGN, INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV, THREAD_DTV, THREAD_SELF, DB_THREAD_SELF): Match ia64. (TLS_TCB_OFFSET, THREAD_ID, NO_TLS_OFFSET): Remove. (THREAD_GETMEM, THREAD_GETMEM_NC): Simplify. (THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/unix/sysv/linux/alpha/createthread.c (TLS_VALUE): Match ia64.
2004-01-15 Richard Henderson <rth@redhat.com> * sysdeps/alpha/tls.h (tcbhead_t): Add private. (TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN, TLS_TCB_SIZE, TLS_PRE_TCB_SIZE, TLS_TCB_ALIGN, INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV, THREAD_DTV, THREAD_SELF, DB_THREAD_SELF): Match ia64. (TLS_TCB_OFFSET, THREAD_ID, NO_TLS_OFFSET): Remove. (THREAD_GETMEM, THREAD_GETMEM_NC): Simplify. (THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/unix/sysv/linux/alpha/createthread.c (TLS_VALUE): Match ia64.
This commit is contained in:
Richard Henderson
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@ -1,3 +1,14 @@
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2004-01-15 Richard Henderson <rth@redhat.com>
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* sysdeps/alpha/tls.h (tcbhead_t): Add private.
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(TLS_INIT_TCB_SIZE, TLS_INIT_TCB_ALIGN, TLS_TCB_SIZE,
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TLS_PRE_TCB_SIZE, TLS_TCB_ALIGN, INSTALL_DTV, INSTALL_NEW_DTV,
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GET_DTV, THREAD_DTV, THREAD_SELF, DB_THREAD_SELF): Match ia64.
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(TLS_TCB_OFFSET, THREAD_ID, NO_TLS_OFFSET): Remove.
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(THREAD_GETMEM, THREAD_GETMEM_NC): Simplify.
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(THREAD_SETMEM, THREAD_SETMEM_NC): Likewise.
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* sysdeps/unix/sysv/linux/alpha/createthread.c (TLS_VALUE): Match ia64.
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2004-01-14 Ulrich Drepper <drepper@redhat.com>
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* init.c (pthread_funtions): Make array const.
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@ -57,93 +57,67 @@ typedef union dtv
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/* Get the thread descriptor definition. */
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# include <nptl/descr.h>
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/* This layout is actually wholly private and not affected by the ABI.
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Nor does it overlap the pthread data structure, so we need nothing
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extra here at all. */
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typedef struct
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{
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dtv_t *dtv;
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void *private;
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} tcbhead_t;
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/* This is the size of the initial TCB. */
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# define TLS_INIT_TCB_SIZE 0
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# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
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/* Alignment requirements for the initial TCB. */
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# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
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# define TLS_INIT_TCB_ALIGN 16
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/* This is the size of the TCB. */
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# define TLS_TCB_SIZE 0
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/* Alignment requirements for the TCB. */
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# define TLS_TCB_ALIGN __alignof__ (struct pthread)
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# define TLS_TCB_SIZE sizeof (tcbhead_t)
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/* This is the size we need before TCB. */
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# define TLS_PRE_TCB_SIZE \
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(sizeof (struct pthread) \
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+ ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))
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# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
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/* The following assumes that TP (R2 or R13) points to the end of the
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TCB + 0x7000 (per the ABI). This implies that TCB address is
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TP - 0x7000. As we define TLS_DTV_AT_TP we can
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assume that the pthread struct is allocated immediately ahead of the
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TCB. This implies that the pthread_descr address is
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TP - (TLS_PRE_TCB_SIZE + 0x7000). */
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/* ??? PPC uses offset 0x7000; seems like a good idea for alpha too,
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but binutils not yet changed to match. */
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# define TLS_TCB_OFFSET 0
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/* Alignment requirements for the TCB. */
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# define TLS_TCB_ALIGN 16
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/* Install the dtv pointer. The pointer passed is to the element with
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index -1 which contain the length. */
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# define INSTALL_DTV(tcbp, dtvp) \
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((tcbhead_t *) (tcbp))[-1].dtv = dtvp + 1
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(((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
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/* Install new dtv for current thread. */
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# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv))
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# define INSTALL_NEW_DTV(dtv) \
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(THREAD_DTV() = (dtv))
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/* Return dtv of given thread descriptor. */
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# define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))[-1].dtv)
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# define GET_DTV(tcbp) \
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(((tcbhead_t *) (tcbp))->dtv)
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/* Code to initially initialize the thread pointer. This might need
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special attention since 'errno' is not yet available and if the
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operation can cause a failure 'errno' must not be touched. */
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# define TLS_INIT_TP(tcbp, secondcall) \
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(__builtin_set_thread_pointer ((void *) (tcbp) + TLS_TCB_OFFSET), NULL)
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(__builtin_set_thread_pointer ((void *)(tcbp)), NULL)
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/* Return the address of the dtv for the current thread. */
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# define THREAD_DTV() \
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(((tcbhead_t *) (__builtin_thread_pointer () - TLS_TCB_OFFSET))[-1].dtv)
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(((tcbhead_t *) __builtin_thread_pointer ())->dtv)
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/* Return the thread descriptor for the current thread. */
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# define THREAD_SELF \
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((struct pthread *) (__builtin_thread_pointer () \
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- TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE))
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((struct pthread *)__builtin_thread_pointer () - 1)
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/* Magic for libthread_db to know how to do THREAD_SELF. */
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# define DB_THREAD_SELF \
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REGISTER (64, 64, 32 * 8, - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)
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REGISTER (64, 64, 32 * 8, -sizeof (struct pthread))
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/* Identifier for the current thread. THREAD_SELF is usable but
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sometimes more expensive than necessary as in this case. */
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# define THREAD_ID (__builtin_thread_pointer ())
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/* Read member of the thread descriptor directly. */
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# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
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/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
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# define THREAD_GETMEM_NC(descr, member, idx) \
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((void)(descr), (THREAD_SELF)->member[idx])
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/* Set member of the thread descriptor directly. */
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# define THREAD_SETMEM(descr, member, value) \
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((void)(descr), (THREAD_SELF)->member = (value))
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/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
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# define THREAD_SETMEM_NC(descr, member, idx, value) \
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((void)(descr), (THREAD_SELF)->member[idx] = (value))
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/* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some
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different value to mean unset l_tls_offset. */
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# define NO_TLS_OFFSET -1
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/* Access to data in the thread descriptor is easy. */
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#define THREAD_GETMEM(descr, member) \
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descr->member
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#define THREAD_GETMEM_NC(descr, member, idx) \
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descr->member[idx]
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#define THREAD_SETMEM(descr, member, value) \
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descr->member = (value)
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#define THREAD_SETMEM_NC(descr, member, idx, value) \
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descr->member[idx] = (value)
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#endif /* __ASSEMBLER__ */
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@ -17,8 +17,7 @@
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02111-1307 USA. */
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/* Value passed to 'clone' for initialization of the thread register. */
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#define TLS_VALUE ((void *) (pd) \
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+ TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)
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#define TLS_VALUE (pd + 1)
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/* Get the real implementation. */
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#include <nptl/sysdeps/pthread/createthread.c>
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