697011a9f1
Release: crash-8.0.3-3 Support module memory layout change on Linux 6.4 Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
72 lines
2.4 KiB
Diff
72 lines
2.4 KiB
Diff
From 8527bbff71cbdfd90a67d5cec4a1d94156e6bf13 Mon Sep 17 00:00:00 2001
|
|
From: Hsin-Yi Wang <hsinyi@chromium.org>
|
|
Date: Wed, 31 May 2023 14:01:36 +0800
|
|
Subject: [PATCH 07/13] Output prompt when stdin is not a TTY
|
|
|
|
When stdin is not a TTY, prompt ("crash> ") won't be displayed. If
|
|
another process interact with crash with piped stdin/stdout, it will not
|
|
get the prompt as a delimiter.
|
|
|
|
Compared to other debugger like gdb, crash seems intended to give a
|
|
prompt in this case in the beginning of process_command_line(). It
|
|
checks if pc->flags does NOT have any of
|
|
READLINE|SILENT|CMDLINE_IFILE|RCHOME_IFILE|RCLOCAL_IFILE, a
|
|
prompt should be printed. The check will never be true since READLINE is
|
|
set in setup_environment() unconditionally.
|
|
|
|
It makes more sense to change the READLINE flag in the check to TTY
|
|
instead. Besides this change, the prompt in process_command_line() should
|
|
only be print when it's not in the middle of processing the input file
|
|
recovering from a previous FATAL command, because the prompt will be
|
|
displayed by the exec_input_file().
|
|
|
|
Additionally, when stdin is not TTY, repeat the command line from user
|
|
after prompt, which can give more context.
|
|
|
|
The prompt and command line can be opt out by using the silent (-s) flag.
|
|
|
|
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
|
|
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
|
|
---
|
|
cmdline.c | 14 +++++++++-----
|
|
1 file changed, 9 insertions(+), 5 deletions(-)
|
|
|
|
diff --git a/cmdline.c b/cmdline.c
|
|
index ded6551c2597..b7f919ae2279 100644
|
|
--- a/cmdline.c
|
|
+++ b/cmdline.c
|
|
@@ -64,8 +64,8 @@ process_command_line(void)
|
|
fp = stdout;
|
|
BZERO(pc->command_line, BUFSIZE);
|
|
|
|
- if (!(pc->flags &
|
|
- (READLINE|SILENT|CMDLINE_IFILE|RCHOME_IFILE|RCLOCAL_IFILE)))
|
|
+ if (!pc->ifile_in_progress && !(pc->flags &
|
|
+ (TTY|SILENT|CMDLINE_IFILE|RCHOME_IFILE|RCLOCAL_IFILE)))
|
|
fprintf(fp, "%s", pc->prompt);
|
|
fflush(fp);
|
|
|
|
@@ -136,12 +136,16 @@ process_command_line(void)
|
|
add_history(pc->command_line);
|
|
|
|
check_special_handling(pc->command_line);
|
|
- } else {
|
|
- if (fgets(pc->command_line, BUFSIZE-1, stdin) == NULL)
|
|
+ } else {
|
|
+ if (fgets(pc->command_line, BUFSIZE-1, stdin) == NULL)
|
|
clean_exit(1);
|
|
+ if (!(pc->flags & SILENT)) {
|
|
+ fprintf(fp, "%s", pc->command_line);
|
|
+ fflush(fp);
|
|
+ }
|
|
clean_line(pc->command_line);
|
|
strcpy(pc->orig_line, pc->command_line);
|
|
- }
|
|
+ }
|
|
|
|
/*
|
|
* First clean out all linefeeds and leading/trailing spaces.
|
|
--
|
|
2.37.1
|
|
|