diff options
Diffstat (limited to 'src/sim/syscall_emul.hh')
| -rw-r--r-- | src/sim/syscall_emul.hh | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index 8c1a21a65..05f87fd7d 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -97,6 +97,7 @@ class SyscallDesc { const char *name; //!< Syscall name (e.g., "open"). FuncPtr funcPtr; //!< Pointer to emulation function. int flags; //!< Flags (see Flags enum). + bool warned; //!< Have we warned about unimplemented syscall? /// Flag values for controlling syscall behavior. enum Flags { @@ -104,17 +105,21 @@ class SyscallDesc { /// Used for syscalls with non-standard return conventions /// that explicitly set the ThreadContext regs (e.g., /// sigreturn). - SuppressReturnValue = 1 + SuppressReturnValue = 1, + WarnOnce = 2 }; /// Constructor. SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0) - : name(_name), funcPtr(_funcPtr), flags(_flags) + : name(_name), funcPtr(_funcPtr), flags(_flags), warned(false) { } /// Emulate the syscall. Public interface for calling through funcPtr. void doSyscall(int callnum, LiveProcess *proc, ThreadContext *tc); + + /// Is the WarnOnce flag set? + bool warnOnce() const { return (flags & WarnOnce); } }; @@ -137,8 +142,6 @@ SyscallReturn unimplementedFunc(SyscallDesc *desc, int num, /// trace flag is enabled. Return success to the target program. SyscallReturn ignoreFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); -SyscallReturn ignoreWarnOnceFunc(SyscallDesc *desc, int num, - LiveProcess *p, ThreadContext *tc); /// Target exit() handler: terminate current context. SyscallReturn exitFunc(SyscallDesc *desc, int num, |