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Search the symbol table of a child process
Post 303034405 by Corona688 on Wednesday 24th of April 2019 06:31:11 PM
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LEARN ABOUT CENTOS
get_kernel_syms
GET_KERNEL_SYMS(2) Linux Programmer's Manual GET_KERNEL_SYMS(2) NAME
get_kernel_syms - retrieve exported kernel and module symbols SYNOPSIS
#include <linux/module.h> int get_kernel_syms(struct kernel_sym *table); DESCRIPTION
Note: This system call is present only in kernels before Linux 2.6. If table is NULL, get_kernel_syms() returns the number of symbols available for query. Otherwise it fills in a table of structures: struct kernel_sym { unsigned long value; char name[60]; }; The symbols are interspersed with magic symbols of the form #module-name with the kernel having an empty name. The value associated with a symbol of this form is the address at which the module is loaded. The symbols exported from each module follow their magic module tag and the modules are returned in the reverse of the order in which they were loaded. RETURN VALUE
On success, returns the number of symbols copied to table. On error, -1 is returned and errno is set appropriately. ERRORS
There is only one possible error return: ENOSYS get_kernel_syms() is not supported in this version of the kernel. VERSIONS
This system call is present on Linux only up until kernel 2.4; it was removed in Linux 2.6. CONFORMING TO
get_kernel_syms() is Linux-specific. BUGS
There is no way to indicate the size of the buffer allocated for table. If symbols have been added to the kernel since the program queried for the symbol table size, memory will be corrupted. The length of exported symbol names is limited to 59 characters. Because of these limitations, this system call is deprecated in favor of query_module(2) (which is itself nowadays deprecated in favor of other interfaces described on its manual page). SEE ALSO
create_module(2), delete_module(2), init_module(2), query_module(2) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2012-10-18 GET_KERNEL_SYMS(2)