SLAU132V User guide | 德州仪器 TI.com.cn

SLAU132V October 2004 – February 2020

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4.3.2 Run-Time Initialization

You must link all C/C++ programs with a bootstrap routine, which will initialize the C/C++ environment and begin the program. The bootstrap routine is responsible for the following tasks:

Set up the stack
Process the .cinit run-time initialization table to autoinitialize global variables (when using the --rom_model option)
Call all global constructors (.init_array) for C++
Call the main() function
Call exit() when main() returns

NOTE

The _c_int00 Symbol

If you use the --ram_model or --rom_model link option, _c_int00 is automatically defined as the entry point for the program. If your command line does not list any C/C++ files to compile and does not specify either the --ram_model or --rom_model link option, the linker does not know whether or not to use the C/C++ conventions, and you will receive a linker warning that says "warning: no suitable entry-point found; setting to 0". See Section 4.3.7 for details about using the --rom_model and --ram_model options.