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Fix readline_into_buffer() with CONFIG_CMDLINE_EDITING before relocating

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When CONFIG_CMDLINE_EDITING is enabled, readline_into_buffer() doesn't
work before relocating to RAM because command history is written into
a global array that is not writable before relocation.  This patch
defers to the no-editing and no-history code in readline_into_buffer()
if it is called before relocation.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
James Yang 2008-05-05 10:22:53 -05:00 committed by Wolfgang Denk
parent 726c0f1e5f
commit 597f6c26a1
1 changed files with 23 additions and 10 deletions
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33
common/main.c
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@ -40,7 +40,7 @@
#include <post.h>
#if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST)
#if defined(CONFIG_SILENT_CONSOLE) || defined(CONFIG_POST) || defined(CONFIG_CMDLINE_EDITING)
DECLARE_GLOBAL_DATA_PTR;
#endif
@ -67,11 +67,9 @@ static int abortboot(int);
char console_buffer[CFG_CBSIZE]; /* console I/O buffer */
#ifndef CONFIG_CMDLINE_EDITING
static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen);
static char erase_seq[] = "\b \b"; /* erase sequence */
static char tab_seq[] = " "; /* used to expand TABs */
#endif /* CONFIG_CMDLINE_EDITING */
#ifdef CONFIG_BOOT_RETRY_TIME
static uint64_t endtime = 0; /* must be set, default is instant timeout */
@ -947,11 +945,26 @@ int readline_into_buffer (const char *const prompt, char * buffer)
initted = 1;
}
puts (prompt);
rc = cread_line(prompt, p, &len);
return rc < 0 ? rc : len;
#else
/*
* History uses a global array which is not
* writable until after relocation to RAM.
* Revert to non-history version if still
* running from flash.
*/
if (gd->flags & GD_FLG_RELOC) {
if (!initted) {
hist_init();
initted = 1;
}
puts (prompt);
rc = cread_line(prompt, p, &len);
return rc < 0 ? rc : len;
} else {
#endif /* CONFIG_CMDLINE_EDITING */
char * p_buf = p;
int n = 0; /* buffer index */
int plen = 0; /* prompt length */
@ -1047,12 +1060,13 @@ int readline_into_buffer (const char *const prompt, char * buffer)
}
}
}
#endif /* CONFIG_CMDLINE_EDITING */
#ifdef CONFIG_CMDLINE_EDITING
}
#endif
}
/****************************************************************************/
#ifndef CONFIG_CMDLINE_EDITING
static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
{
char *s;
@ -1082,7 +1096,6 @@ static char * delete_char (char *buffer, char *p, int *colp, int *np, int plen)
(*np)--;
return (p);
}
#endif /* CONFIG_CMDLINE_EDITING */
/****************************************************************************/