05-22-2007
-lclntsh tells cc to use the clntsh library when linking the executable file.
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LEARN ABOUT DEBIAN
jocamlrun
JOCAMLRUN(1) General Commands Manual JOCAMLRUN(1)
NAME
jocamlrun - The JoCaml bytecode interpreter
SYNOPSIS
jocamlrun [ -v ] filename argument ...
DESCRIPTION
The jocamlrun(1) command executes bytecode files produced by the linking phase of the jocamlc(1) command.
The first non-option argument is taken to be the name of the file containing the executable bytecode. (That file is searched in the exe-
cutable path as well as in the current directory.) The remaining arguments are passed to the Objective Caml program, in the string array
Sys.argv. Element 0 of this array is the name of the bytecode executable file; elements 1 to n are the remaining arguments.
In most cases, the bytecode executable files produced by the jocamlc(1) command are self-executable, and manage to launch the jocamlrun(1)
command on themselves automatically.
OPTIONS
The following command-line option is recognized by jocamlrun(1).
-v When set, the memory manager prints verbose messages on standard error to signal garbage collections and heap extensions.
ENVIRONMENT VARIABLES
The following environment variable are also consulted:
OCAMLRUNPARAM
Set the garbage collection parameters. (If OCAMLRUNPARAM is not set, CAMLRUNPARAM will be used instead.) This variable must be a
sequence of parameter specifications. A parameter specification is an option letter followed by an = sign, a decimal number, and an
optional multiplier. There are seven options:
b (backtrace)
Print a stack backtrace in case of an uncaught exception.
s (minor_heap_size)
Size of the minor heap.
i (major_heap_increment)
Minimum size increment for the major heap.
o (space_overhead)
The major GC speed setting.
O (max_overhead)
The heap compaction trigger setting.
l (stack_limit)
The limit (in words) of the stack size.
h The initial size of the major heap (in words).
v (verbose)
What GC messages to print to stderr. This is a sum of values selected from the following:
1 Start of major GC cycle.
2 Minor collection and major GC slice.
4 Growing and shrinking of the heap.
8 Resizing of stacks and memory manager tables.
16 Heap compaction.
32 Change of GC parameters.
64 Computation of major GC slice size.
128 Calling of finalisation function.
256 Startup messages.
The multiplier is k , M , or G , for multiplication by 2^10, 2^20, and 2^30 respectively. For example, on a 32-bit machine under
bash, the command export OCAMLRUNPARAM='s=256k,v=1' tells a subsequent jocamlrun to set its initial minor heap size to 1 megabyte
and to print a message at the start of each major GC cycle.
PATH List of directories searched to find the bytecode executable file.
SEE ALSO
jocamlc(1).
The Objective Caml user's manual, chapter "Runtime system".
JOCAMLRUN(1)