cortex_m: fix stepping on FPB rev 1 57/4857/2
authorTomas Vanek <vanekt@fbl.cz>
Sat, 19 Jan 2019 09:26:38 +0000 (10:26 +0100)
committerTomas Vanek <vanekt@fbl.cz>
Mon, 4 Feb 2019 10:25:44 +0000 (10:25 +0000)
commit4b998cb5f5d2066e5e0197fcc460831b09813f70
tree6a998d8bd04eab85c44a1c66d3497755d3e259a7
parent5105e6037f16f3f1eda3d81d1749886b7e3049d8
cortex_m: fix stepping on FPB rev 1

Stepping in the maskisr auto mode sets breakpoint to step over interrupt
service tasks. If the device has FPB rev 1, setting hard breakpoint
is impossible on address over 0x1fffffff.

Use soft type breakpoint for adresses over 0x1fffffff if FPB is rev 1.
This may eventually fail if the code memory is not writeable, but there
is nothing to do in such case.

Change-Id: Ibdeeb506903a35d550b64f82c24c37a668de62b3
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4857
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
src/target/cortex_m.c

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