[OpenOCD-commit] Main OpenOCD repository branch, master, updated. v0.12.0-188-g3a4f445bd

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- Log -----------------------------------------------------------------
commit 3a4f445bd92101d3daee3715178d3fbff3b7b029
Author: Paul Fertser <fer...@gm...>
Date:   Tue May 2 15:15:21 2023 +0300

    jtag: tcl: show error message when attempting manual "drscan" on a bypassed tap
    
    To perform any meaningful manipulations with DR the corresponding IR should
    be set to a relevant instruction, not BYPASS, so warn the user accordingly.
    
    Signed-off-by: Paul Fertser <fer...@gm...>
    Change-Id: I42580ecd75ae824a4145f6f17f0df9bcf825b50f
    Reviewed-on: https://review.openocd.org/c/openocd/+/7654
    Reviewed-by: Antonio Borneo <bor...@gm...>
    Tested-by: jenkins

diff --git a/src/jtag/tcl.c b/src/jtag/tcl.c
index 395439039..934b60352 100644
--- a/src/jtag/tcl.c
+++ b/src/jtag/tcl.c
@@ -116,6 +116,11 @@ COMMAND_HANDLER(handle_jtag_command_drscan)
 		return ERROR_COMMAND_ARGUMENT_INVALID;
 	}
 
+	if (tap->bypass) {
+		command_print(CMD, "Can't execute as the selected tap is in BYPASS");
+		return ERROR_FAIL;
+	}
+
 	tap_state_t endstate = TAP_IDLE;
 	if (CMD_ARGC > 3 && !strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2])) {
 		const char *state_name = CMD_ARGV[CMD_ARGC - 1];

-----------------------------------------------------------------------

Summary of changes:
 src/jtag/tcl.c | 5 +++++
 1 file changed, 5 insertions(+)


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