From: Antonio Borneo <borneo.antonio@gmail.com>
Date: Sat, 21 Nov 2020 23:33:59 +0000 (+0100)
Subject: armv4_5: fix output of command 'arm reg'
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=62686ab161e9c46a620dd592b2767634e9483c20;p=fw%2Fopenocd

armv4_5: fix output of command 'arm reg'

Commit fc2abe63fd3c ("armv7m: use generic arm::core_mode") adds
two special modes for ARMv6M and ARMv7M in struct arm_mode_data[].
While these modes do not have any additional register to be dumped
by command 'arm reg', the command still prints an header for these
modes but not followed by any register.

Detect the special modes for ARMv6M and ARMv7M and skip them to
avoid printing the useless header.

Change-Id: I04145769e5742624f143c910eebf9a6f6d8e3cdc
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Fixes: fc2abe63fd3c ("armv7m: use generic arm::core_mode")
Reviewed-on: http://openocd.zylin.com/5942
Tested-by: jenkins
---

diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c
index 8ac482504..b725853fe 100644
--- a/src/target/armv4_5.c
+++ b/src/target/armv4_5.c
@@ -856,6 +856,9 @@ COMMAND_HANDLER(handle_armv4_5_reg_command)
 		char *sep = "\n";
 		char *shadow = "";
 
+		if (!arm_mode_data[mode].n_indices)
+			continue;
+
 		/* label this bank of registers (or shadows) */
 		switch (arm_mode_data[mode].psr) {
 			case ARM_MODE_SYS: