Lines Matching +full:segment +full:- +full:2 +full:a

9 is a computer execution environment.
10 It includes a memory image,
14 An image is the current state of a pseudo-computer.
16 A
19 While the processor is executing on behalf of a process,
22 unless the appearance of an active, higher-priority
26 The user-memory part of an image is divided into three logical segments.
27 The program text segment begins at location 0 in the virtual address space.
28 During execution, this segment is write-protected
29 and a single copy of it is shared among
31 At the first hardware protection byte boundary above the program text segment in the
32 virtual address space begins a non-shared, writable data segment,
33 the size of which may be extended by a system call.
35 address in the virtual address space is a stack segment,
43 is bootstrapping itself into operation, a new
50 .P2
81 calls that are used for file-system I/O.
85 .P2
86 returns a file descriptor
89 creates an inter-process channel called a
95 A
97 using a pipe file descriptor
102 Neither process need know that a pipe,
107 inter-process communication
108 via pipes is a quite valuable tool
110 it is not a completely general
112 because the pipe must be set up by a common ancestor
121 .P2
126 .UL arg\v'.3'\*s1\*n\v'-.3'\| ,
127 .UL arg\v'.3'\*s2\*n\v'-.3'\| ,
129 .UL arg\v'.3'\*sn\*n\v'-.3' .
136 inter-process relationships are unaltered.
141 its execute-permission bit was not set, does a return
145 it resembles a ``jump'' machine instruction
146 rather than a subroutine call.
153 .P2
171 .P2
172 terminates a process,
184 Processes may also terminate as a result of
185 various illegal actions or user-generated signals