We include newlib headers (and link part of newlib), so any
locally-defined function must have the same prototype as standard
ones. We'll soon nee a "puts" implementation for pp_printf, so this
adds puts as an alias of uart_write_string (at no size cost) and makes
uart_write_string itself return integer (this costs a few bytes).

While I'm at it, change uart_write_byte to be slightly faster.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This comes from git://gitorious.org/rubi/pp-printf.git

 .
This commit just copies it over, without enabling it for compilation.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Also add the missing prototypes in eeprom.h, to fix warnings in shell/

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This removes the "unsigned" for environment variables, since
the public header has all "char *" types.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

I also turned to gui to void, as nobody checks the return value and
there's no error code to return in any case.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

When I add prototypes to headers, I ensure the source that
defines the function sees the header, to detect inconsistencies
(here, I add <wrc.h> to the includes).

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This adds all missing prototypes and removes unused variables.
It includes a generic <wrc.h> (which btw includes the printf
prototype, not in uart.h any more) and other needed bits.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

There was a wrong "static" in a public header that triggered
my interest here. This fixes the warning and makes all functions
that are unused elsewhere really static. It also saves 50 bytes
in the final binary.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Remove all unneeded stuff from the linker script. Now the script only
includes what is actually used: it is easier to understand and change
(we'll add some local ELF sections), and it makes a better reference
for possible porting to a different architecture.

This commit also moves the default libraries from the linker script
itself to the LDFLAGS in Makefile, where they really belong.

CONFIG_DETERMINISTIC_BINARY confirms this makes no difference in
the generated binary (nor the ELF FWIW).

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Instead of picking libraries from the linker script, common practice
is listing them in LDFLAGS. This simplifies review and modification.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

CONFIG_DETERMINISTIC_BINARY confirms this makes no difference in
the generated binary.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

It also used cflags-y in the same way.

CONFIG_DETERMINISTIC_BINARY confirms this makes no difference in
the generated binary, but it opens to more configuration options.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This also removes the run of $SIZE on all object files, as the
previous content of the screen is often more important for me.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

I prefer the comment separatos for sections to be different than those
for chapters (so I better see the structure while editing). It makes
no difference for others I'm sure.

Also, remove the info menus: they tend to rust in the source
while the good ones in the output are regenarated by ./fixinfo .

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

While compiling a noticed some overfull and underfull boxes, and
they are now fixed. Also, change the date and write that this is not
a release (while leaving references to the last release we had.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This doesn't change the behavior of any command, but adds revision.c
as a real source file rather than something created by make using
"echo ... > revision.c".  In any case, the file is recompiled
each time you call "make", so the date and time reflect the last
build.

However, this introduces CONFIG_DETERMINISTIC_BINARY (that nobody
sets at this point in time) to build a binary withouth __DATE__
and __TIME__ strings, so it is the same at every rebuild. See
next commit.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This has been verified to properly obey the new CONFIG_ETHERBONE
settin.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>