What is the use of pragma code section and data section?

Question

What exactly will happen to the data segment and text segment if I use the below two lines in my c source code file?

#pragma CODE_SECTION(func1, \"Sec1\")
#p         


        

Answer 1

#pragma means "here follows something implementation-defined unique to this compiler". So what will happen depends on the compiler you are using. If the compiler doesn't support this specific pragma, the whole thing will be ignored.

---

In this case it is fairly obvious, however.

#pragma CODE_SECTION(func1, "Sec1") means: "func1 should be in program memory, in the memory area called Sec1". Sec1 will be a read-only memory location where the actual code of func1 will be allocated.

#pragma DATA_SECTION(globalvar1, "Sec2") means: "globalvar1 should be in data memory, in the memory area called Sec2". Sec2 will be a read/write location where the variable globalvar1 will be allocated.