freebsd-dev/lib/libc/arm/sys/Makefile.inc

# $FreeBSD$

SRCS+=	__vdso_gettc.c

MDASM= Ovfork.S brk.S cerror.S sbrk.S shmat.S sigreturn.S syscall.S

# Don't generate default code for these syscalls:
NOASM+=	vfork.o
Import the FreeBSD/arm libc bits. Obtained from: NetBSD 2004-05-14 12:04:31 +00:00			`# $FreeBSD$`

Add support for usermode (vdso-like) gettimeofday(2) and clock_gettime(2) on ARMv7 and ARMv8 systems which have architectural generic timer hardware. It is similar how the RDTSC timer is used in userspace on x86. Fix a permission problem where generic timer access from EL0 (or userspace on v7) was not properly initialized on APs. For ARMv7, mark the stack non-executable. The shared page is added for all arms (including ARMv8 64bit), and the signal trampoline code is moved to the page. Reviewed by: andrew Discussed with: emaste, mmel Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D4209 2015-12-07 12:20:26 +00:00			`SRCS+= __vdso_gettc.c`
Rework the __vdso_* symbols attributes to only make the symbols weak, but use normal references instead of weak. This makes the statically linked binaries to use fast gettimeofday(2) by forcing the linker to resolve references and providing the neccessary functions. Reported by: bde Tested by: marius (sparc64) MFC after: 2 weeks 2013-01-30 12:48:16 +00:00
Rewrite ptrace(2) wrappers in C. Besides removing hand-translation to assembler, this also adds missing wrappers for arm64 and risc-v. Reviewed by: emaste, jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D7694 2016-08-29 18:47:51 +00:00			`MDASM= Ovfork.S brk.S cerror.S sbrk.S shmat.S sigreturn.S syscall.S`
Import the FreeBSD/arm libc bits. Obtained from: NetBSD 2004-05-14 12:04:31 +00:00
			`# Don't generate default code for these syscalls:`
Reduce duplicate NOASM and PSEUDO definitions The initial value of NOASM is nearly the same in all cases and the initial value of PSEUDO is the same in all cases so reduce duplication (and hopefully, future merge conflicts) by machine independent defaults. Also document the PSEUDO variable. Reviewed by: jhb, kib Obtained from: CheriBSD Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D7820 2016-09-08 22:38:20 +00:00			`NOASM+= vfork.o`