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authorZack Weinberg <zackw@panix.com>2017-02-26 20:17:52 -0500
committerZack Weinberg <zackw@panix.com>2017-03-01 20:33:46 -0500
commit9090848d0607e93fb08a1d68d9f263846ee33f02 (patch)
treed6cd846fff1640a49ef071cfd0bfabb8efa5352c /sysdeps/x86_64
parent5e4e10636cf999c251b623c3be143a22156721d6 (diff)
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Narrowing the visibility of libc-internal.h even further.
posix/wordexp-test.c used libc-internal.h for PTR_ALIGN_DOWN; similar to what was done with libc-diag.h, I have split the definitions of cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and PTR_ALIGN_DOWN to a new header, libc-pointer-arith.h. It then occurred to me that the remaining declarations in libc-internal.h are mostly to do with early initialization, and probably most of the files including it, even in the core code, don't need it anymore. Indeed, only 19 files actually need what remains of libc-internal.h. 23 others need libc-diag.h instead, and 12 need libc-pointer-arith.h instead. No file needs more than one of them, and 16 don't need any of them! So, with this patch, libc-internal.h stops including libc-diag.h as well as losing the pointer arithmetic macros, and all including files are adjusted. * include/libc-pointer-arith.h: New file. Define cast_to_integer, ALIGN_UP, ALIGN_DOWN, PTR_ALIGN_UP, and PTR_ALIGN_DOWN here. * include/libc-internal.h: Definitions of above macros moved from here. Don't include libc-diag.h anymore either. * posix/wordexp-test.c: Include stdint.h and libc-pointer-arith.h. Don't include libc-internal.h. * debug/pcprofile.c, elf/dl-tunables.c, elf/soinit.c, io/openat.c * io/openat64.c, misc/ptrace.c, nptl/pthread_clock_gettime.c * nptl/pthread_clock_settime.c, nptl/pthread_cond_common.c * string/strcoll_l.c, sysdeps/nacl/brk.c * sysdeps/unix/clock_settime.c * sysdeps/unix/sysv/linux/i386/get_clockfreq.c * sysdeps/unix/sysv/linux/ia64/get_clockfreq.c * sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c * sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c: Don't include libc-internal.h. * elf/get-dynamic-info.h, iconv/loop.c * iconvdata/iso-2022-cn-ext.c, locale/weight.h, locale/weightwc.h * misc/reboot.c, nis/nis_table.c, nptl_db/thread_dbP.h * nscd/connections.c, resolv/res_send.c, soft-fp/fmadf4.c * soft-fp/fmasf4.c, soft-fp/fmatf4.c, stdio-common/vfscanf.c * sysdeps/ieee754/dbl-64/e_lgamma_r.c * sysdeps/ieee754/dbl-64/k_rem_pio2.c * sysdeps/ieee754/flt-32/e_lgammaf_r.c * sysdeps/ieee754/flt-32/k_rem_pio2f.c * sysdeps/ieee754/ldbl-128/k_tanl.c * sysdeps/ieee754/ldbl-128ibm/k_tanl.c * sysdeps/ieee754/ldbl-96/e_lgammal_r.c * sysdeps/ieee754/ldbl-96/k_tanl.c, sysdeps/nptl/futex-internal.h: Include libc-diag.h instead of libc-internal.h. * elf/dl-load.c, elf/dl-reloc.c, locale/programs/locarchive.c * nptl/nptl-init.c, string/strcspn.c, string/strspn.c * malloc/malloc.c, sysdeps/i386/nptl/tls.h * sysdeps/nacl/dl-map-segments.h, sysdeps/x86_64/atomic-machine.h * sysdeps/unix/sysv/linux/spawni.c * sysdeps/x86_64/nptl/tls.h: Include libc-pointer-arith.h instead of libc-internal.h. * elf/get-dynamic-info.h, sysdeps/nacl/dl-map-segments.h * sysdeps/x86_64/atomic-machine.h: Add multiple include guard.
Diffstat (limited to 'sysdeps/x86_64')
-rw-r--r--sysdeps/x86_64/atomic-machine.h10
-rw-r--r--sysdeps/x86_64/nptl/tls.h2
2 files changed, 8 insertions, 4 deletions
diff --git a/sysdeps/x86_64/atomic-machine.h b/sysdeps/x86_64/atomic-machine.h
index 672a7eb025..2e8a9aad04 100644
--- a/sysdeps/x86_64/atomic-machine.h
+++ b/sysdeps/x86_64/atomic-machine.h
@@ -16,10 +16,12 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#include <stdint.h>
-#include <tls.h> /* For tcbhead_t. */
-#include <libc-internal.h>
+#ifndef _X86_64_ATOMIC_MACHINE_H
+#define _X86_64_ATOMIC_MACHINE_H 1
+#include <stdint.h>
+#include <tls.h> /* For tcbhead_t. */
+#include <libc-pointer-arith.h> /* For cast_to_integer. */
typedef int8_t atomic8_t;
typedef uint8_t uatomic8_t;
@@ -475,3 +477,5 @@ typedef uintmax_t uatomic_max_t;
__asm __volatile (LOCK_PREFIX "orl $0, (%%rsp)" ::: "memory")
#define atomic_read_barrier() __asm ("" ::: "memory")
#define atomic_write_barrier() __asm ("" ::: "memory")
+
+#endif /* atomic-machine.h */
diff --git a/sysdeps/x86_64/nptl/tls.h b/sysdeps/x86_64/nptl/tls.h
index f2afe85602..53b41bc84f 100644
--- a/sysdeps/x86_64/nptl/tls.h
+++ b/sysdeps/x86_64/nptl/tls.h
@@ -26,7 +26,7 @@
# include <stdint.h>
# include <stdlib.h>
# include <sysdep.h>
-# include <libc-internal.h>
+# include <libc-pointer-arith.h> /* For cast_to_integer. */
# include <kernel-features.h>
# include <dl-dtv.h>