1 //===-- main.c --------------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 #include <stdio.h> 9 10 // This simple program is to test the lldb Python APIs SBTarget, SBFrame, 11 // SBFunction, SBSymbol, and SBAddress. 12 // 13 // When stopped on breakppint 1, we can get the line entry using SBFrame API 14 // SBFrame.GetLineEntry(). We'll get the start address for the line entry 15 // with the SBAddress type, resolve the symbol context using the SBTarget API 16 // SBTarget.ResolveSymbolContextForAddress() in order to get the SBSymbol. 17 // 18 // We then stop at breakpoint 2, get the SBFrame, and the SBFunction object. 19 // 20 // The address from calling GetStartAddress() on the symbol and the function 21 // should point to the same address, and we also verify that. 22 23 int a(int); 24 int b(int); 25 int c(int); 26 27 int a(int val) 28 { 29 if (val <= 1) // Find the line number for breakpoint 1 here. 30 val = b(val); 31 else if (val >= 3) 32 val = c(val); 33 34 return val; // Find the line number for breakpoint 2 here. 35 } 36 37 int b(int val) 38 { 39 return c(val); 40 } 41 42 int c(int val) 43 { 44 return val + 3; 45 } 46 47 int main (int argc, char const *argv[]) 48 { 49 int A1 = a(1); // a(1) -> b(1) -> c(1) 50 printf("a(1) returns %d\n", A1); 51 52 int B2 = b(2); // b(2) -> c(2) 53 printf("b(2) returns %d\n", B2); 54 55 int A3 = a(3); // a(3) -> c(3) 56 printf("a(3) returns %d\n", A3); 57 58 return 0; 59 } 60