Everything on Solaris 10 with a user account

If getting used to GNU/Linux, using pure unix is suffering. To make things worse, I only have a regular user acount. Hands are really tight. Not until now do I appreciate GNU tools, very smart and powerful.


1. make pdflatex.fmt

pdftex -ini -fmt=pdflatex.fmt latex.ltx

2. install AucTeX for emacs

./configure --prefix=/home/cps536-n1.07/elisp # install package
--with-lispdir=/home/cps536-n1.07/elisp # install auctex.el
--with-texmf-dir=/home/cps536-n1.07/texmf-local/ # put config in texmf

make; make install

note: if pdflatex is not working, to compile auctex, just open $auctex-install-dir/preview/latex/Makefile.in, and delete lines that test pdflatex.

3. make TAGS of linux kernel with i386 platform, under emacs

cd $Linux-kernel-dir;
find include/linux/ fs/ init/ ipc/ kernel/ lib/ mm/ net/ arch/i386/ -type f -iregex .*\.[csh] -exec etags -a '{}' -o kernel-TAGS \;

Useful hot keys:

M-. tag

Find first definition of tag (find-tag).

C-u M-.

Find next alternate definition of last tag specified.

C-u - M-.

Go back to previous tag found.

C-M-. pattern

Find a tag whose name matches pattern (find-tag-regexp).

C-u C-M-.

Find the next tag whose name matches the last pattern used.

C-x 4 . tag

Find first definition of tag, but display it in another window

(find-tag-other-window).

C-x 5 . tag

Find first definition of tag, and create a new frame to select the

buffer (find-tag-other-frame).

M-*

Pop back to where you previously invoked M-. and friends.

4. The purpose of __init:

__init tells GCC to put the function in a special section. These functions are
only used during booting, and are removed from memory after boot (see the
"Freeing unused kernel memory: 200k freed" or similar boot message.

5. Funny. If adding "exec bash" in .cshrc, I cannot login to OpenWindows, while change it to "bash", everything is OK. Still wonder when it executes .cshrc.

6. read entire file using c:

  fseek(input, 0L, SEEK_END);  /* Position to end of file */
lFileLen = ftell(input);     /* Get file length */
rewind(input);               /* Back to start of file */
fread(str, lFileLen, 1, input);