Re: [avr-libc-dev] Add lib per devide.

[Anatoly Sokolov]

Sorry.

The patches is attached.

Anatoly.

----- Original Message ----- 
From: "Weddington, Eric" <address@hidden>
To: "Anatoly Sokolov" <address@hidden>; <address@hidden>
Sent: Friday, December 19, 2008 9:23 PM
Subject: RE: [avr-libc-dev] Add lib per devide.



Hi Anatoly,

Somehow, I don't see your attachment.

Eric 

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Anatoly Sokolov
> Sent: Thursday, December 18, 2008 8:31 PM
> To: address@hidden
> Subject: [avr-libc-dev] Add lib per devide.
> 
> Hello.
> 
> This patches add in the avr-libc a library per device.
> 
> I against, to build full the avr-libc library for device, 
> this dramatically
> increase compile time and the code size of avr-libc. Instead, 
> I suggest to
> build libc for architecture and add small library with device specific
> functions for eeprom, wdt, boot e.t.c. modules. 
> 
> Changes in avr-libc:
> 
> 1. Add libdevice subdirectory and subdirectories with device specific
> libraries variants:
> libdevice
> eeprom libs:
> |\eeprom_1d
> |\eeprom_20
> |\eeprom_xmega
> wdt libs:
> |\wdt_ver_1
> |\wdt_ver_2
> dummy dir:
> |\none
> 
> 2. Add in devtools\gen-avr-lib-tree.sh:*_DEV_INFO arrays 
> device library name
> [1] and name of subdirectory [2] with eeprom library for this 
> device. In
> addition here it is possible to customize other libraries:
> 
> AVR12_DEV_INFO="\
> t90s1200:crts1200.o:libs1200[1]:${DEV_DEFS}:${CFLAGS_SPACE}:${
DEV_ASFLAGS}:none[2];\
> ...
> AVR5_DEV_INFO="\
> tmega16:crtm16.o:libm16:${DEV_DEFS}:${CFLAGS_SPACE}:${DEV_ASFL
AGS}:eeprom_20;\
> ...
> tmega164p:crtm164p.o:libm164p:${DEV_DEFS}:${CFLAGS_SPACE}:${DE
V_ASFLAGS}:eeprom_20;\
> ...
> AVRXMEGA4_DEV_INFO="\
> txmega64a3:crtx64a3.o:libx64a3:${DEV_DEFS}:${CFLAGS_SPACE}:${D
EV_ASFLAGS}:eeprom_xmega\
> e.t.c.
> 
> 3. Add in  devtools\Device.am rules for building  device libraries.
> 
> Now only the "eeprom_read_byte" and "eeprom_write_byte" 
> functions for eeprom library is implemented. 
> 
> 
> The patch for GCC add the -muse-device-lib switch in GCC. 
> 
> Use the -muse-device-lib switch for automatic link the with 
> device libraries.
> For using the old avr-libc without device libraries, the 
> -muse-device-lib
> don't need. 
> 
> Anatoliy.
>

avr-libc-lib_per_device_part1.diff.txt
Description: Text document

avr-libc-lib_per_device_part2.diff.txt
Description: Text document

gcc-lib_per_device.diff.txt
Description: Text document