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Cleanup BPF helper symbols (#9804)

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This commit is contained in:
Jack May
2020-04-30 11:29:11 -07:00
committed by GitHub
parent 217931479b
commit 7678af6300
2 changed files with 27 additions and 23 deletions
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46
programs/bpf_loader/src/syscalls.rs
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@ -72,28 +72,30 @@ pub fn register_syscalls<'a>(
vm: &mut EbpfVm<'a, BPFError>,
invoke_context: &'a mut dyn InvokeContext,
) -> Result<MemoryRegion, EbpfError<BPFError>> {
// Syscall function common across languages
vm.register_syscall_ex("abort", syscall_abort)?;
vm.register_syscall_ex("sol_panic", syscall_sol_panic)?;
vm.register_syscall_ex("sol_panic_", syscall_sol_panic)?;
vm.register_syscall_ex("sol_log", syscall_sol_log)?;
vm.register_syscall_ex("sol_log_", syscall_sol_log)?;
vm.register_syscall_ex("sol_log_64", syscall_sol_log_u64)?;
vm.register_syscall_ex("sol_log_64_", syscall_sol_log_u64)?;
let invoke_context = Rc::new(RefCell::new(invoke_context));
vm.register_syscall_with_context_ex(
"sol_invoke_signed_rust",
Box::new(SyscallProcessInstructionRust {
invoke_context: invoke_context.clone(),
}),
)?;
vm.register_syscall_with_context_ex(
"sol_invoke_signed_c",
Box::new(SyscallProcessSolInstructionC {
invoke_context: invoke_context.clone(),
}),
)?;
// Cross-program invocation syscalls
{
let invoke_context = Rc::new(RefCell::new(invoke_context));
vm.register_syscall_with_context_ex(
"sol_invoke_signed_c",
Box::new(SyscallProcessSolInstructionC {
invoke_context: invoke_context.clone(),
}),
)?;
vm.register_syscall_with_context_ex(
"sol_invoke_signed_rust",
Box::new(SyscallProcessInstructionRust {
invoke_context: invoke_context.clone(),
}),
)?;
}
// Memory allocator
let heap = vec![0_u8; DEFAULT_HEAP_SIZE];
let heap_region = MemoryRegion::new_from_slice(&heap, MM_HEAP_START);
vm.register_syscall_with_context_ex(
@ -191,8 +193,9 @@ fn translate_string_and_do(
}
/// Abort syscall functions, called when the BPF program calls `abort()`
/// The verify function returns an error which will cause the BPF program
/// to be halted immediately
/// LLVM will insert calls to `abort()` if it detects an untenable situation,
/// `abort()` is not intended to be called explicitly by the program.
/// Causes the BPF program to be halted immediately
pub fn syscall_abort(
_arg1: u64,
_arg2: u64,
@ -205,9 +208,8 @@ pub fn syscall_abort(
Err(SyscallError::Abort.into())
}
/// Panic syscall functions, called when the BPF program calls 'sol_panic_()`
/// The verify function returns an error which will cause the BPF program
/// to be halted immediately
/// Panic syscall function, called when the BPF program calls 'sol_panic_()`
/// Causes the BPF program to be halted immediately
pub fn syscall_sol_panic(
file: u64,
len: u64,
@ -241,7 +243,7 @@ pub fn syscall_sol_log(
Ok(0)
}
/// Log 5 u64 values
/// Log 5 64-bit values
pub fn syscall_sol_log_u64(
arg1: u64,
arg2: u64,