This commit allows user to determine whether to have history recording in command-line. Previously to this commit, the CMD_HISTORY only sets the compiling of cmd/history.c, and the history code in cli_readline.c is always compiled and will take a lot of space to store history even if we say N to CMD_HISTORY.

Signed-off-by: Hanyuan Zhao hanyuan-z@qq.com --- This is v3 of patch series cli: allow users to disable history if unused at all. Please ignore the v2 version. --- Changes v1 -> v3: - Move the #ifdef CONFIG_CMD_HISTORY directives to this patch. These directives are still necessary when users are not using the history. --- common/cli_readline.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/common/cli_readline.c b/common/cli_readline.c index cf4339d0e5..9f71b33a01 100644 --- a/common/cli_readline.c +++ b/common/cli_readline.c @@ -67,12 +67,14 @@ static char *delete_char (char *buffer, char *p, int *colp, int *np, int plen) #define CTL_BACKSPACE ('\b') #define DEL ((char)255) #define DEL7 ((char)127) -#define CREAD_HIST_CHAR ('!')

#define getcmd_putch(ch) putc(ch) #define getcmd_getch() getchar() #define getcmd_cbeep() getcmd_putch('\a')

+#ifdef CONFIG_CMD_HISTORY + +#define CREAD_HIST_CHAR ('!') #ifdef CONFIG_SPL_BUILD #define HIST_MAX 3 #define HIST_SIZE 32 @@ -93,14 +95,6 @@ static char *hist_list[HIST_MAX];

#define add_idx_minus_one() ((hist_add_idx == 0) ? hist_max : hist_add_idx-1)

-static void getcmd_putchars(int count, int ch) -{ - int i; - - for (i = 0; i < count; i++) - getcmd_putch(ch); -} - static int hist_init(void) { int i; @@ -201,6 +195,15 @@ void cread_print_hist_list(void) i++; } } +#endif /* CONFIG_CMD_HISTORY */ + +static void getcmd_putchars(int count, int ch) +{ + int i; + + for (i = 0; i < count; i++) + getcmd_putch(ch); +}

#define BEGINNING_OF_LINE() { \ while (cls->num) { \ @@ -374,6 +377,7 @@ int cread_line_process_ch(struct cli_line_state *cls, char ichar) cls->eol_num--; } break; +#ifdef CONFIG_CMD_HISTORY case CTL_CH('p'): case CTL_CH('n'): if (cls->history) { @@ -403,6 +407,7 @@ int cread_line_process_ch(struct cli_line_state *cls, char ichar) break; } break; +#endif case '\t': if (IS_ENABLED(CONFIG_AUTO_COMPLETE) && cls->cmd_complete) { int num2, col; @@ -499,19 +504,23 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len, } *len = cls->eol_num;

+#ifdef CONFIG_CMD_HISTORY if (buf[0] && buf[0] != CREAD_HIST_CHAR) cread_add_to_hist(buf); hist_cur = hist_add_idx; +#endif

return 0; }

#else /* !CONFIG_CMDLINE_EDITING */

+#ifdef CONFIG_CMD_HISTORY static inline int hist_init(void) { return 0; } +#endif

static int cread_line(const char *const prompt, char *buf, unsigned int *len, int timeout) @@ -649,7 +658,9 @@ int cli_readline_into_buffer(const char *const prompt, char *buffer, char *p = buffer; uint len = CONFIG_SYS_CBSIZE; int rc; - static int initted; +#ifdef CONFIG_CMD_HISTORY + static int hist_initted; +#endif

/* * Say N to CMD_HISTORY_USE_CALLOC will skip runtime @@ -663,11 +674,13 @@ int cli_readline_into_buffer(const char *const prompt, char *buffer, * or disable CMD_HISTORY. */ if (IS_ENABLED(CONFIG_CMDLINE_EDITING) && (gd->flags & GD_FLG_RELOC)) { - if (!initted) { +#ifdef CONFIG_CMD_HISTORY + if (!hist_initted) { rc = hist_init(); if (rc == 0) - initted = 1; + hist_initted = 1; } +#endif

if (prompt) puts(prompt);