glibc

Tree: 8ea4d2b7d1

Joseph Myers 8ea4d2b7d1 Unify some sys/procfs.h headers. As per recent discussions, this patch unifies some of the sys/procfs.h headers for architectures using the Linux kernel, producing a generic version that can hopefully be used by all new architectures as well. The new generic version is based on the AArch64 one. The register definitions, the only part that generally needs to vary by architecture, go in a new bits/procfs.h header (which each architecture using the generic version needs to provide); that header also has any #includes that were in the architecture-specific sys/procfs.h, where those includes went beyond the generic set. The generic version is used for eight architectures where the generic definitions were the same as the architecture-specific ones. (Some of those architectures had #if 0 fields, now removed; some defined types or fields using different type names which were typedefs for the same underlying types.) Six of the remaining architectures with their own sys/procfs.h use unsigned short for pr_uid / pr_gid in some cases; moving those to the generic header will require a bits/ header to define a typedef for the type of those fields. In the case of alpha, the generic sys/procfs.h uses elf_gregset_t (= unsigned long int[33]) to define prgregset_t and elf_fpregset_t (= double[32]) to define prfpregset_t, but the alpha version uses gregset_t (= long int[33]) and fpregset_t (= long int[32]), so avoiding unnecessarily changing the underlying types (and thus C++ name mangling) again means a bits/ header will need to be able to define a different choice for those typedefs. bits/procfs.h is included outside the __BEGIN_DECLS / __END_DECLS pair (whereas the definitions it contains were previously inside that pair in various sys/procfs.h headers), because it sometimes includes other headers and putting those other #includes inside that pair seems risky. Because none of the declarations in bits/procfs.h are of functions or variables or involve function types, I don't think it makes any difference whether they are inside or outside an extern "C" context. Tested with build-many-glibcs.py (again, that does not provide much validation for the correctness of this patch). * sysdeps/unix/sysv/linux/sys/procfs.h: Replace with file based on AArch64 version. Include <bits/procfs.h>. * sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc] (sysdep_headers): Add bits/procfs.h. * sysdeps/unix/sysv/linux/bits/procfs.h: New file. * sysdeps/unix/sysv/linux/aarch64/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/nios2/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/riscv/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/sys/procfs.h: Remove file. * sysdeps/unix/sysv/linux/hppa/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/nios2/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/riscv/sys/procfs.h: Likewise.		8 years ago
..
aarch64	Use trunc functions not __trunc functions in glibc libm.	8 years ago
alpha	Use rint functions not __rint functions in glibc libm.	8 years ago
arm	Add new exp and exp2 implementations	8 years ago
generic	Add new pow implementation	8 years ago
gnu	Update netinet/udp.h from Linux 4.18.	8 years ago
hppa	Move SNAN_TESTS_PRESERVE_PAYLOAD out of math-tests.h.	8 years ago
htl	hurd: Avoid PLTs for __pthread_get/setspecific	8 years ago
hurd	Fix ISO C threads installed header and HURD assumption	8 years ago
i386	Add new pow implementation	8 years ago
ia64	Add new pow implementation	8 years ago
ieee754	Use trunc functions not __trunc functions in glibc libm.	8 years ago
init_array	sysdeps/init_array: Add PREINIT_FUNCTION to crti.S	8 years ago
m68k	Use trunc functions not __trunc functions in glibc libm.	8 years ago
mach	hurd: Fix exec usage of mach_setup_thread	8 years ago
microblaze	Mark _init and _fini as hidden [BZ #23145]	8 years ago
mips	Split fenv_private.h out of math_private.h more consistently.	8 years ago
nios2	Move EXCEPTION_TESTS_* out of math-tests.h	8 years ago
nptl	[BZ #20271] Add newlines in __libc_fatal calls.	8 years ago
posix	Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251)	8 years ago
powerpc	powerpc: Only enable TLE with PPC_FEATURE2_HTM_NOSC	8 years ago
pthread	hurd: fix sigevent's sigev_notify_attributes field type	8 years ago
riscv	Use trunc functions not __trunc functions in glibc libm.	8 years ago
s390	S390: Regenerate ULPs.	8 years ago
sh	Update SH libm-tests-ulps	8 years ago
sparc	Use trunc functions not __trunc functions in glibc libm.	8 years ago
unix	Unify some sys/procfs.h headers.	8 years ago
wordsize-32	Use libc_hidden_* for strtoumax (bug 15105).	8 years ago
wordsize-64	Use libc_hidden_* for strtoumax (bug 15105).	8 years ago
x86	Invert sense of list of i686-class processors in sysdeps/x86/cpu-features.h.	8 years ago
x86_64	Use trunc functions not __trunc functions in glibc libm.	8 years ago