SLAU132V User guide | 德州仪器 TI.com.cn

SLAU132V October 2004 – February 2020

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6.9.4 Initialization Tables

The tables in the .cinit section consist of variable-size initialization records. Each variable that must be autoinitialized has a record in the .cinit section. Figure 6-6 shows the format of the .cinit section and the initialization records.

Figure 6-6 Format of Initialization Records in the .cinit Section

The fields of an initialization record contain the following information:

The first field of an initialization record contains the size (in bytes) of the initialization data.
The second field contains the starting address of the area within the .bss section where the initialization data must be copied.
The third field contains the data that is copied into the .bss section to initialize the variable.

Each variable that must be autoinitialized has an initialization record in the .cinit section.

Example 10 shows initialized global variables defined in C. Example 11 shows the corresponding initialization table. The section .cinit:c is a subsection in the .cinit section that contains all scalar data. The subsection is handled as one record during initialization, which minimizes the overall size of the .cinit section.