profiling support (files)

[Marcus Brinkmann]

Hi,

two attachments: 1. gcrt0.o (just copy into /lib).
                 2. specs   (just copy into /lib/gcc-lib/i386-gnu/2.95.4/)

The path to the gcc files depends on the version number.

Usage:

To profile the program only:
$ gcc -o main main.c -pg 
$ ./main
$ gprof main gmon.out

To profile the program and the C library:
$ gcc -o main main.c -profile
$ ./main
$ gprof main gmon.out

The specs file implement the following option combinations:
Notes: -shared overrides (and prevents) profiling options.
       -profile forces to link the profiling C library statically
       -pg/-p does link to the normal C library (dynamically or statically)

static  shared  pg      p       profile =>lib
Y/N     N       Y/N     Y/N     N       -lc
N       Y       Y/N     Y/N     Y/N     -lc

Y/N     N       Y/N     Y/N     Y       -lc_p

static  shared  pg      p       profile =>startfile
N       N       N       N       N       crt1.o crti.o crtbegin.o
Y       N       N       N       N       crt0.o crti.o crtbegin.o
N       Y       Y/N     Y/N     Y/N     crti.o crtbeginS.o

N       N       Y/N     Y/N     Y       gcrt0.o crti.o crtbegin.o
Y       N       Y/N     Y/N     Y/N     gcrt0.o crti.o crtbegin.o
                ^^^^^^^^^^^^^^^^^^^ at least one Y

N       N       Y/N     Y/N     N       gcrt1.o crti.o crtbegin.o
                ^^^^^^^^^^^ at least one Y

Thanks,
Marcus

-- 
`Rhubarb is no Egyptian god.' Debian http://www.debian.org brinkmd@debian.org
Marcus Brinkmann              GNU    http://www.gnu.org    marcus@gnu.org
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de

gcrt0.o
Description: application/object

specs
Description: Text document