- In computing, a
system call (commonly
abbreviated to
syscall) is the
programmatic way in
which a
computer program requests a
service from the operating...
- 32/64
syscall hole".
Linux Kernel Mailing List.
Retrieved 2013-08-02. Torvalds,
Linus (2009-02-28). "Re: [PATCH 2/2] x86-64: seccomp: fix 32/64
syscall hole"...
-
syscall execution time and
count (-T, -c, -C, and -w options; -U
option enables printing of
additional information, like
minimum and
maximum syscall execution...
- count(); }' #
Syscall count by
syscall dtrace -n '
syscall:::entry { @num[probefunc] = count(); }' #
Syscall count by
process dtrace -n '
syscall:::entry {...
- # 4 (code for "write"
syscall) -> EAX
register movl $1, %ebx # 1 (file
descriptor for stdout) -> EBX (1st
argument to
syscall) movl $msg, %ecx # 32-bit...
- load the
syscall number into the rax register, and the
other parameters into rdi, rsi, rdx, r10, r8, and r9, and
finally to put the
syscall ****embly instruction...
- completed, the sigreturn()
system call is called.
Calling the
sigreturn syscall means being able to
easily set the
contents of
registers using a single...
- libc
library and
native APIs ports,
providing support on
POSIX for
Linux syscalls within the
Linux kernel and
LiteOS default kernels side of the
system multi-kernel...
- Gutschke,
Markus (May 6, 2009). "Re: (PATCH 2/2) x86-64: seccomp: fix 32/64
syscall hole".
Archived from the
original on June 24, 2013.
Retrieved February...
- rest was the Mach
kernel running various routines on the message.
Given a
syscall that does nothing, a full round-trip
under BSD
would require about 40μs...
