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glibc/sysdeps/unix/sysv/linux/x86
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Joseph Myers 729f34028a Use single bits/shm.h for all architectures. 
After my patch to move SHMLBA to its own header, the bits/shm.h
headers for architectures using the Linux kernel still vary in a few
ways: the use of __syscall_ulong_t; whether padding for 32-bit systems
is present before or after time fields, or missing altogether (mips,
x32); whether shm_segsz is before or after the time fields; whether,
if after time fields, there is extra padding before shm_segsz.

This patch arranges for a single header to be used.  __syscall_ulong_t
is safe to use everywhere, while bits/shm-pad.h is added with new
macros __SHM_PAD_AFTER_TIME, __SHM_PAD_BEFORE_TIME,
__SHM_SEGSZ_AFTER_TIME and __SHM_PAD_BETWEEN_TIME_AND_SEGSZ to
describe the differences.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
	bits/shm-pad.h.
	* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/shm-pad.h>.
	(shmatt_t): Define as __syscall_ulong_t.
	(__SHM_PAD_TIME): New macro, depending on [__SHM_PAD_BEFORE_TIME]
	and [__SHM_PAD_AFTER_TIME].
	(struct shmid_ds): Define time fields using __SHM_PAD_TIME.
	Define shm_segsz and associated padding based on
	[__SHM_SEGSZ_AFTER_TIME] and [__SHM_PAD_BETWEEN_TIME_AND_SEGSZ].
	Use __syscall_ulong_t instead of unsigned long int.
	[__USE_MISC] (struct shminfo): Use __syscall_ulong_t instead of
	unsigned long int.
	[__USE_MISC] (struct shm_info): Likewise.
	* sysdeps/unix/sysv/linux/bits/shm-pad.h: New file.
	* sysdeps/unix/sysv/linux/hppa/bits/shm-pad.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/shm-pad.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/shm-pad.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/shm-pad.h: Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/shm-pad.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/bits/shm.h: Remove.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/x86/bits/shm.h: Likewise.
2018-10-17 11:56:28 +00:00
..
bits Use single bits/shm.h for all architectures. 2018-10-17 11:56:28 +00:00
include/asm x86/CET: Extend arch_prctl syscall for CET control 2018-07-24 12:23:17 -07:00
sys Unify more sys/procfs.h headers. 2018-09-25 16:49:25 +00:00
arch-pkey.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
cpu-features.c x86/CET: Extend arch_prctl syscall for CET control 2018-07-24 12:23:17 -07:00
dl-cet.h x86/CET: Extend arch_prctl syscall for CET control 2018-07-24 12:23:17 -07:00
dl-sysdep.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-conf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-conf.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-lock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-timed.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-trylock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
elision-unlock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
force-elision.h Fix race in pthread_mutex_lock while promoting to PTHREAD_MUTEX_ELISION_NP [BZ #23275] 2018-10-17 12:23:04 +02:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
hle.h x86: Use RTM intrinsics in pthread mutex lock elision 2018-10-02 07:51:57 -07:00
Implies Consolidate pthreadtype.h placementConsolidate pthreadtype.h placement 2017-04-10 17:33:10 -03:00
jmp_buf-ssp.sym x86: Make a space in jmpbuf for shadow stack pointer 2017-11-30 04:58:01 -08:00
libc-vdso.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makefile x86: Use RTM intrinsics in pthread mutex lock elision 2018-10-02 07:51:57 -07:00
pkey_get.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pkey_set.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_cond_lock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_lock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_timedlock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pthread_mutex_trylock.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setjmpP.h x86: Use pad in pthread_unwind_buf to preserve shadow stack register 2018-05-02 06:17:41 -07:00
sysconf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
time.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-cet-property-1.c x86/CET: Fix property note parser [BZ #23467] 2018-07-30 16:15:38 -07:00
tst-cet-property-2.c x86/CET: Fix property note parser [BZ #23467] 2018-07-30 16:15:38 -07:00
tst-cet-property-dep-2.S x86/CET: Fix property note parser [BZ #23467] 2018-07-30 16:15:38 -07:00
tst-cet-setcontext-1.c x86/CET: Add a setcontext test for CET 2018-07-25 08:40:50 -07:00
tst-saved_mask-1.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00