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fix: semihosting_fileio display the unsupported info (#699) 

the abnormal info display below:
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0
semihosting: unsupported call 0

the PC did not plus 4 before resume, which cause this
abnormal info popup.

Change-Id: I15c1e7426f1925e78f607c566976f9352216506f
Signed-off-by: Wu Zhigang <zhigang.wu@starfivetech.com>

Co-authored-by: Wu Zhigang <zhigang.wu@starfivetech.com>
This commit is contained in:
wzgpeter 2022-05-17 00:57:22 +08:00 committed by GitHub
parent a037b20f2e
commit a408bdc8db
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 5 deletions
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10
src/target/riscv/riscv_semihosting.c
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@ -155,16 +155,16 @@ semihosting_result_t riscv_semihosting(struct target *target, int *retval)
}
}
/* Resume right after the EBREAK 4 bytes instruction. */
*retval = riscv_set_register(target, GDB_REGNO_PC, pc + 4);
if (*retval != ERROR_OK)
return SEMI_ERROR;
/*
* Resume target if we are not waiting on a fileio
* operation to complete.
*/
if (semihosting->is_resumable && !semihosting->hit_fileio) {
/* Resume right after the EBREAK 4 bytes instruction. */
*retval = riscv_set_register(target, GDB_REGNO_PC, pc + 4);
if (*retval != ERROR_OK)
return SEMI_ERROR;
LOG_DEBUG(" -> HANDLED");
return SEMI_HANDLED;
}