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| author | Wolfgang Denk <wd@denx.de> | 2010-07-24 21:55:43 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-08-04 00:45:36 +0200 |
| commit | cdb749778aa3a8f8d2a41dd4ad811ef822aecfe6 (patch) | |
| tree | fd0b779d80dd4ef0c7de0cdc7f5ad09563bb355e /README | |
| parent | 78e1e8467795d681b3f5f75140ba175e79954273 (diff) | |
| download | talos-obmc-uboot-cdb749778aa3a8f8d2a41dd4ad811ef822aecfe6.tar.gz talos-obmc-uboot-cdb749778aa3a8f8d2a41dd4ad811ef822aecfe6.zip | |
Rename getenv_r() into getenv_f()
While running from flash, i. e. before relocation, we have only a
limited C runtime environment without writable data segment. In this
phase, some configurations (for example with environment in EEPROM)
must not use the normal getenv(), but a special function. This
function had been called getenv_r(), with the idea that the "_r"
suffix would mean the same as in the _r_eentrant versions of some of
the C library functions (for example getdate vs. getdate_r, getgrent
vs. getgrent_r, etc.).
Unfortunately this was a misleading name, as in U-Boot the "_r"
generally means "running from RAM", i. e. _after_ relocation.
To avoid confusion, rename into getenv_f() [as "running from flash"]
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -2572,7 +2572,7 @@ to save the current settings. Please note that the environment is read-only until the monitor has been relocated to RAM and a RAM copy of the environment has been -created; also, when using EEPROM you will have to use getenv_r() +created; also, when using EEPROM you will have to use getenv_f() until then to read environment variables. The environment is protected by a CRC32 checksum. Before the monitor |
