isaexec(3C) Standard C Library Functions isaexec(3C)NAMEisaexec - invoke isa-specific executable
SYNOPSIS
#include <unistd.h>
int isaexec(const char *path, char *const argv[], char *const envp[]);
DESCRIPTION
The isaexec() function takes the path specified as path and breaks it
into directory and file name components. It enquires from the running
system the list of supported instruction set architectures; see isal‐
ist(5). The function traverses the list for an executable file in named
subdirectories of the original directory. When such a file is located,
execve() is invoked with argv[] and envp[]. See exec (2).
RETURN VALUES
If no file is located, isaexec() returns ENOENT. Other return values
are the same as for execve().
EXAMPLES
Example 1: Example of isaexec() function.
On a system whose isalist is
sparcv7 sparc
the program
int
main(int argc, char *argv[], char *envp[])
{
return (isaexec("/bin/thing", argv, envp));
}
will look first for an executable file named /bin/sparcv7/thing, then
for an executable file named /bin/sparc/thing. It will invoke execve()
on the first executable file it finds named thing.
On that same system, a program called /u/bin/tofu can cause either
/u/bin/sparcv7/tofu or /u/bin/sparc/tofu to be invoked using the fol‐
lowing code:
int
main(int argc, char *argv[], char *envp[])
{
return (isaexec(getexecname(), argv, envp));
}
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │Safe │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Stable │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOexec(2), getexecname(3C), attributes(5), isalist(5)SunOS 5.10 20 Mar 1998 isaexec(3C)
