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LibCore: Implement new ptrace_peekbuf wrapper for PT_PEEKBUF syscall
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3 changed files with 26 additions and 0 deletions
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@ -12,6 +12,15 @@ extern "C" {
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long ptrace(int request, pid_t tid, void* addr, void* data)
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{
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if (request == PT_PEEKBUF) {
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// PT_PEEKBUF cannot easily be correctly used through this function signature:
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// The amount of data to be copied is not available.
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// We could VERIFY() here, but to safeguard against ports that attempt to use
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// the same number, let's claim that the Kernel just doesn't know the command.
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// Use Core::System::ptrace_peekbuf instead.
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return EINVAL;
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}
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// PT_PEEK needs special handling since the syscall wrapper
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// returns the peeked value as an int, which can be negative because of the cast.
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// When using PT_PEEK, the user can check if an error occurred
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