0a0d87c9b8
The upcoming syscall catchpoint support needs to get control on syscall entry and return. Provide the necessary hooks for that, which are no-ops for now. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240202152506.279476-4-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240207163812.3231697-13-alex.bennee@linaro.org>
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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* gdbstub user-mode only APIs
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*
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* Copyright (c) 2022 Linaro Ltd
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*
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* SPDX-License-Identifier: LGPL-2.0+
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*/
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#ifndef GDBSTUB_USER_H
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#define GDBSTUB_USER_H
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/**
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* gdb_handlesig_reason() - yield control to gdb
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* @cpu: CPU
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* @sig: if non-zero, the signal number which caused us to stop
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* @reason: stop reason for stop reply packet or NULL
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*
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* This function yields control to gdb, when a user-mode-only target
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* needs to stop execution. If @sig is non-zero, then we will send a
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* stop packet to tell gdb that we have stopped because of this signal.
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*
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* This function will block (handling protocol requests from gdb)
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* until gdb tells us to continue target execution. When it does
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* return, the return value is a signal to deliver to the target,
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* or 0 if no signal should be delivered, ie the signal that caused
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* us to stop should be ignored.
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*/
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int gdb_handlesig_reason(CPUState *, int, const char *);
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/**
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* gdb_handlesig() - yield control to gdb
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* @cpu CPU
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* @sig: if non-zero, the signal number which caused us to stop
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* @see gdb_handlesig_reason()
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*/
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static inline int gdb_handlesig(CPUState *cpu, int sig)
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{
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return gdb_handlesig_reason(cpu, sig, NULL);
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}
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/**
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* gdb_signalled() - inform remote gdb of sig exit
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* @as: current CPUArchState
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* @sig: signal number
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*/
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void gdb_signalled(CPUArchState *as, int sig);
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/**
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* gdbserver_fork() - disable gdb stub for child processes.
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* @cs: CPU
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*/
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void gdbserver_fork(CPUState *cs);
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/**
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* gdb_syscall_entry() - inform gdb of syscall entry and yield control to it
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* @cs: CPU
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* @num: syscall number
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*/
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void gdb_syscall_entry(CPUState *cs, int num);
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/**
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* gdb_syscall_entry() - inform gdb of syscall return and yield control to it
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* @cs: CPU
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* @num: syscall number
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*/
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void gdb_syscall_return(CPUState *cs, int num);
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#endif /* GDBSTUB_USER_H */
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