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| author | Zoltán Dudás <zedudi@gmail.com> | 2021-11-24 17:13:50 +0100 |
|---|---|---|
| committer | Antonio Borneo <borneo.antonio@gmail.com> | 2022-02-05 21:40:17 +0000 |
| commit | 5ab74bde06541ce199390ead348a3e107ee9c0f4 (patch) | |
| tree | 416f5c7be1369187ab65d16bd6ce0342bc13b102 /src/target/riscv | |
| parent | dbbac5f11d662ab0827a997aa5d173fd62c51708 (diff) | |
| download | riscv-openocd-5ab74bde06541ce199390ead348a3e107ee9c0f4.zip riscv-openocd-5ab74bde06541ce199390ead348a3e107ee9c0f4.tar.gz riscv-openocd-5ab74bde06541ce199390ead348a3e107ee9c0f4.tar.bz2 | |
semihosting: User defined operation, Tcl command exec on host
Enabling a portion (0x100 - 0x107) of the user defined semihosting
operation number range (0x100 - 0x1FF) to be processed with the help of
the existing target event mechanism, to implement a general-purpose Tcl
interface for the target available on the host, via semihosting
interface.
Example usage:
- The user configures a Tcl command as a callback for one of the newly
defined events (semihosting-user-cmd-0x10X) in the configuration
file.
- The target can make a semihosting call with <opnum>, passing optional
parameters for the call.
If there is no callback registered to the user defined operation number,
nothing happens.
Example usage: Configure RTT automatically with the exact, linked
control block location from target.
Signed-off-by: Zoltán Dudás <zedudi@gmail.com>
Change-Id: I10e1784b1fecd4e630d78df81cb44bf1aa2fc247
Reviewed-on: https://review.openocd.org/c/openocd/+/6748
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Diffstat (limited to 'src/target/riscv')
| -rw-r--r-- | src/target/riscv/riscv_semihosting.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/target/riscv/riscv_semihosting.c b/src/target/riscv/riscv_semihosting.c index b347212..1dd8e77 100644 --- a/src/target/riscv/riscv_semihosting.c +++ b/src/target/riscv/riscv_semihosting.c @@ -140,7 +140,9 @@ semihosting_result_t riscv_semihosting(struct target *target, int *retval) semihosting->word_size_bytes = riscv_xlen(target) / 8; /* Check for ARM operation numbers. */ - if (semihosting->op >= 0 && semihosting->op <= 0x31) { + if ((semihosting->op >= 0 && semihosting->op <= 0x31) || + (semihosting->op >= 0x100 && semihosting->op <= 0x107)) { + *retval = semihosting_common(target); if (*retval != ERROR_OK) { LOG_ERROR("Failed semihosting operation (0x%02X)", semihosting->op); |