70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
|
|
* Semihosting Console
|
|
*
|
|
* Copyright (c) 2019 Linaro Ltd
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef SEMIHOST_CONSOLE_H
|
|
#define SEMIHOST_CONSOLE_H
|
|
|
|
#include "cpu.h"
|
|
|
|
/**
|
|
* qemu_semihosting_console_outs:
|
|
* @env: CPUArchState
|
|
* @s: host address of null terminated guest string
|
|
*
|
|
* Send a null terminated guest string to the debug console. This may
|
|
* be the remote gdb session if a softmmu guest is currently being
|
|
* debugged.
|
|
*
|
|
* Returns: number of bytes written.
|
|
*/
|
|
int qemu_semihosting_console_outs(CPUArchState *env, target_ulong s);
|
|
|
|
/**
|
|
* qemu_semihosting_console_outc:
|
|
* @env: CPUArchState
|
|
* @s: host address of null terminated guest string
|
|
*
|
|
* Send single character from guest memory to the debug console. This
|
|
* may be the remote gdb session if a softmmu guest is currently being
|
|
* debugged.
|
|
*
|
|
* Returns: nothing
|
|
*/
|
|
void qemu_semihosting_console_outc(CPUArchState *env, target_ulong c);
|
|
|
|
/**
|
|
* qemu_semihosting_console_inc:
|
|
* @env: CPUArchState
|
|
*
|
|
* Receive single character from debug console. This may be the remote
|
|
* gdb session if a softmmu guest is currently being debugged. As this
|
|
* call may block if no data is available we suspend the CPU and will
|
|
* re-execute the instruction when data is there. Therefore two
|
|
* conditions must be met:
|
|
* - CPUState is synchronized before calling this function
|
|
* - pc is only updated once the character is successfully returned
|
|
*
|
|
* Returns: character read OR cpu_loop_exit!
|
|
*/
|
|
target_ulong qemu_semihosting_console_inc(CPUArchState *env);
|
|
|
|
/**
|
|
* qemu_semihosting_log_out:
|
|
* @s: pointer to string
|
|
* @len: length of string
|
|
*
|
|
* Send a string to the debug output. Unlike console_out these strings
|
|
* can't be sent to a remote gdb instance as they don't exist in guest
|
|
* memory.
|
|
*
|
|
* Returns: number of bytes written
|
|
*/
|
|
int qemu_semihosting_log_out(const char *s, int len);
|
|
|
|
#endif /* SEMIHOST_CONSOLE_H */
|