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target/espressif: add semihosting support

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ARM semihosting + some custom syscalls implemented for
Espressif chips (ESP32, ESP32-S2, ESP32-S3)

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: Ic8174cf1cd344fa16d619b7b8405c9650e869443
Reviewed-on: https://review.openocd.org/c/openocd/+/7074
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Erhan Kurubas
2022-06-30 13:14:27 +03:00
committed by Antonio Borneo
parent 7dc4be3157
commit bea4d65903
16 changed files with 510 additions and 15 deletions
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27
tcl/target/esp32.cfg
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@@ -3,6 +3,9 @@
# The ESP32 only supports JTAG.
transport select jtag
# Source the ESP common configuration file
source [find target/esp_common.cfg]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
@@ -67,6 +70,30 @@ if { $_ONLYCPU != 1 } {
$_TARGETNAME_1 configure -event reset-assert-post { soft_reset_halt }
}
$_TARGETNAME_0 configure -event examine-end {
# Need to enable to set 'semihosting_basedir'
arm semihosting enable
arm semihosting_resexit enable
if { [info exists _SEMIHOST_BASEDIR] } {
if { $_SEMIHOST_BASEDIR != "" } {
arm semihosting_basedir $_SEMIHOST_BASEDIR
}
}
}
if { $_ONLYCPU != 1 } {
$_TARGETNAME_1 configure -event examine-end {
# Need to enable to set 'semihosting_basedir'
arm semihosting enable
arm semihosting_resexit enable
if { [info exists _SEMIHOST_BASEDIR] } {
if { $_SEMIHOST_BASEDIR != "" } {
arm semihosting_basedir $_SEMIHOST_BASEDIR
}
}
}
}
gdb_breakpoint_override hard
source [find target/xtensa-core-esp32.cfg]