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Top Forums UNIX for Dummies Questions & Answers Which sections of a shared library should be loaded in the physical memory? Post 302428953 by Dongping84 on Friday 11th of June 2010 10:03:59 AM
Old 06-11-2010
Which sections of a shared library should be loaded in the physical memory?

Each shared library may contain sections with allocatable flag as below:
Code:
...
.hash
.gnu.hash
.dynsym
.dynstr
.gnu.version
.gnu.version_d
.rel.dyn
.rel.plt
.plt
...

My questions is that: among above sections, which of them should be loaded in the physical memory by run-time linker (ld-2.10.1.so), are they loaded entirely or partially?
Thx!!!
 

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dlgetname(3C)															     dlgetname(3C)

NAME
dlgetname() - retrieve the name of a load module given a load module descriptor SYNOPSIS
[flag]... file... [library]... char *dlgetname(struct load_module_desc *desc, size_t desc_size, void *(*read_tgt_mem)(void* buffer, unsigned long long ptr, size_t bufsiz, int ident), int ident_parm, unsigned long long load_map_parm); Multithread Usage This routine is thread-safe. DESCRIPTION
is one of a family of routines that give the user direct access to the dynamic linking facilities. returns the pathname of a load module represented by desc. The read_tgt_mem, ident_parm, and load_map_parm parameters are identical to those for See dlmodinfo(3C). The caller of must copy the return value to insure that it is not corrupted. RETURN VALUE
If desc does not describe a loaded module, then NULL is returned. More detailed diagnostic information is available through ERRORS
If fails, a subsequent call to returns one of the following values: Cannot apply relocation in library. Out of memory. failed in reading target memory. failed on entry to or exit from failed on exit from failed on entry to AUTHOR
was developed by HP. SEE ALSO
System Tools exec(2) System loader. ld(1) Invokes the link editor. Miscellaneous a.out(4) Assembler, compiler, and linker output. dlclose(3C) Unloads a shared library previously loaded by dlerror(3C) Returns the last error message recorded by dlerrno(3C) Returns an error code for the last error recorded by dlget(3C) Returns information on a loaded module. dlmodinfo(3C) Returns information about a loaded module. dlopen(3C) Loads a shared library. dlsym(3C) Gets the address of a symbol in a shared library. Texts and Tutorials (See the option) (See manuals(5) for ordering information) ELF Application Only dlgetname(3C)
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