Solaris Application Programming, 1/e - Chapter 4 - Parent Directory

92 Chapter 4 Informational Tools
.strtab:
Name
a.out
crti.s
crt1.s
__get_exit_frame_monitor_ptr
...
.stab.indexstr:
Name
/tmp/;/opt/SUNWspro/prod/bin/f90 -g -qoption f90comp -
h.XAzwWCA01y4\$DCK. test.f90
...
The mcs tool, which is shipped with Solaris, manipulates the comments section
in elf files. The -p option will print the comments. It is possible to delete the comments
section using -d, or append more strings using -a. The comments section
often holds details of the compiler version used and the header files included. An
example of manipulating the comments section is shown in Example 4.66. The initial
comments section shows the version information for the compiler, together
with details of the header files included at compile time. Using the mcs flag -a, it
is possible to append another comment to the file.
$ cc -O code.c
$ mcs -p a.out
a.out:
Example 4.65 Example of Output from dump (continued )
Example 4.66 Manipulating the Comments Section Using mcs
cg: Sun Compiler Common 11 2005/10/13
cg: Sun Compiler Common 11 2005/10/13
@(#)stdio.h 1.84 04/09/28 SMI
@(#)feature_tests.h 1.25 07/02/02 SMI
...
ld: Software Generation Utilities - Solaris Link Editors: 5.10-1.486
$ mcs -a "Hello" a.out
$ mcs -p a.out
a.out:
...
ld: Software Generation Utilities - Solaris Link Editors: 5.10-1.486
Hello