cc65/libsrc/common/_cwd.s

;
; Ullrich von Bassewitz, 2003-08-12, 2005-04-16
;
; Place to store the current working directory.
;
; __cwd is initialized by a platform specific function named "initcwd" called
; by the constructor defined in this module.
;

        .export         __cwd
        .export         __cwd_buf_size
        .constructor    cwd_init

        .import         initcwd

        .include        "stdio.inc"

        __cwd_buf_size  = FILENAME_MAX

        cwd_init        := initcwd

.segment        "INITBSS"

__cwd:  .res    __cwd_buf_size


; NOTE: Some of the code working with directories is not able to handle
; strings longer than 255 chars, so don't make __cwd larger than 256 without
; checking the other sources.

        .assert __cwd_buf_size < 256, error, "__cwd_buf_size must not be > 255"
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00			`;`
Initialize _cwd by use of a constructor that calls a platform specific function. git-svn-id: svn://svn.cc65.org/cc65/trunk@3461 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-16 14:43:22 +00:00			`; Ullrich von Bassewitz, 2003-08-12, 2005-04-16`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00			`;`
			`; Place to store the current working directory.`
Initialize _cwd by use of a constructor that calls a platform specific function. git-svn-id: svn://svn.cc65.org/cc65/trunk@3461 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-16 14:43:22 +00:00			`;`
			`; __cwd is initialized by a platform specific function named "initcwd" called`
			`; by the constructor defined in this module.`
			`;`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`.export __cwd`
Leave __cwd_buf_size intact git-svn-id: svn://svn.cc65.org/cc65/trunk@3467 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:48:05 +00:00			`.export __cwd_buf_size`
Initialize _cwd by use of a constructor that calls a platform specific function. git-svn-id: svn://svn.cc65.org/cc65/trunk@3461 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-16 14:43:22 +00:00			`.constructor cwd_init`

			`.import initcwd`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00
Make the size of _cwd FILENAME_MAX chars git-svn-id: svn://svn.cc65.org/cc65/trunk@3465 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:28:11 +00:00			`.include "stdio.inc"`
Changed run location of INIT segment. So far the INIT segment was run from the later heap+stack. Now the INIT segment is run from the later BSS. The background is that so far the INIT segment was pretty small (from $80 to $180 bytes). But upcoming changes will increase the INIT segment in certain scenarios up to ~ $1000 bytes. So programs with very limited heap+stack might just not been able to move the INIT segment to its run location. But moving the INIT segment to the later BSS allows it to occupy the later BSS+heap+stack. In order to allow that the constructors are _NOT_ allowed anymore to access the BSS. Rather they must use the DATA segment or the new INITBSS segment. The latter isn't cleared at any point so the constructors may use it to expose values to the main program. However they must make sure to always write the values as they are not pre-initialized. 2015-10-14 20:52:09 +00:00
Leave __cwd_buf_size intact git-svn-id: svn://svn.cc65.org/cc65/trunk@3467 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:48:05 +00:00			`__cwd_buf_size = FILENAME_MAX`
Make the size of _cwd FILENAME_MAX chars git-svn-id: svn://svn.cc65.org/cc65/trunk@3465 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:28:11 +00:00
Initialize _cwd by use of a constructor that calls a platform specific function. git-svn-id: svn://svn.cc65.org/cc65/trunk@3461 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-16 14:43:22 +00:00			`cwd_init := initcwd`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00
Changed run location of INIT segment. So far the INIT segment was run from the later heap+stack. Now the INIT segment is run from the later BSS. The background is that so far the INIT segment was pretty small (from $80 to $180 bytes). But upcoming changes will increase the INIT segment in certain scenarios up to ~ $1000 bytes. So programs with very limited heap+stack might just not been able to move the INIT segment to its run location. But moving the INIT segment to the later BSS allows it to occupy the later BSS+heap+stack. In order to allow that the constructors are _NOT_ allowed anymore to access the BSS. Rather they must use the DATA segment or the new INITBSS segment. The latter isn't cleared at any point so the constructors may use it to expose values to the main program. However they must make sure to always write the values as they are not pre-initialized. 2015-10-14 20:52:09 +00:00			`.segment "INITBSS"`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00
Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 11:56:54 +00:00			`__cwd: .res __cwd_buf_size`
Make the size of _cwd FILENAME_MAX chars git-svn-id: svn://svn.cc65.org/cc65/trunk@3465 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:28:11 +00:00

			`; NOTE: Some of the code working with directories is not able to handle`
			`; strings longer than 255 chars, so don't make __cwd larger than 256 without`
			`; checking the other sources.`
Added a getcwd function git-svn-id: svn://svn.cc65.org/cc65/trunk@2275 b7a2c559-68d2-44c3-8de9-860c34a00d81 2003-08-12 13:51:11 +00:00
Leave __cwd_buf_size intact git-svn-id: svn://svn.cc65.org/cc65/trunk@3467 b7a2c559-68d2-44c3-8de9-860c34a00d81 2005-04-19 11:48:05 +00:00			`.assert __cwd_buf_size < 256, error, "__cwd_buf_size must not be > 255"`