[avr-libc-dev] [bug #36933] Documentation no longer correctly describes how to declare strings for storage in program memory

[Stuart Cording]

URL:
<http://savannah.nongnu.org/bugs/?36933>

Summary: Documentation no longer correctly describes how to
declare strings for storage in program memory
Project: AVR C Runtime Library
Submitted by: codinghead
Submitted on: Tue 24 Jul 2012 09:44:17 GMT
Category: Documentation
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Documentation
Status: None
Percent Complete: 0%
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Release: 1.8.0
Fixed Release: None

_______________________________________________________

Details:

The documentation page as described below no longer correctly describes how to
define strings that are to be stored in program memory using the PGM_P and
PROGMEM definition s.

This issue occurs when moving from version 1.7.1 to 1.8.0.

Description of the issue with the 1.8.0 library and how to solve it below.

The strings were defined as per the AVR Libc homepage -
http://www.nongnu.org/avr-libc/user-manual/pgmspace.html
char string_1[] PROGMEM = "String 1";
char string_2[] PROGMEM = "String 2";
char string_3[] PROGMEM = "String 3";
char string_4[] PROGMEM = "String 4";
char string_5[] PROGMEM = "String 5";
PGM_P string_table[] PROGMEM =
{
string_1,
string_2,
string_3,
string_4,
string_5
};
However, on compiling my code I received the following error for each such
Error 1 variable 'string_B01' must be const in order to be put into

read-only section by means of '__attribute__((progmem))'

const char string_1[] PROGMEM = "String 1"; const char string_2[]
PROGMEM = "String 2"; const char string_3[] PROGMEM = "String 3";
const char string_4[] PROGMEM = "String 4"; const char string_5[]
PROGMEM = "String 5";
PGM_P const string_table[] PROGMEM =
{
string_1,
string_2,
string_3,
string_4,
string_5
};

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[Eric Weddington]

Update of bug #36933 (project avr-libc):

Priority: 5 - Normal => 9 - Immediate


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[Aurelien Jarno]

Additional Item Attachment, bug #36933 (project avr-libc):

File name: 36933.patch Size:2 KB


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[jens harms]

Follow-up Comment #1, bug #36933 (project avr-libc):

Why is this bug still "open" ?
avr-libc 2.0.0 doc still unpatched!



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[Jonathan W. Taylor]

Update of bug #36933 (project avr-libc):

Assigned to: None => elderling


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[Jonathan W. Taylor]

Update of bug #36933 (project avr-libc):

Release: 1.8.0 => 2.0.0


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[Jonathan W. Taylor]

Update of bug #36933 (project avr-libc):

Status: None => Confirmed


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[Jonathan W. Taylor]

Update of bug #36933 (project avr-libc):

Percent Complete: 0% => 80%


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[Jonathan W. Taylor]

Update of bug #36933 (project avr-libc):

Percent Complete: 80% => 100%
Open/Closed: Open => Closed


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