[lwip-devel] Clarification needed for variable initialization

[Robert Ammerman]

It is indeed part of the C standard that global variables without explicit 
initializers are set to zero.

However, talk about BSS or INITDATA is referring to some, but not all 
compilers. The way the compiler manages the initialization is not defined. 
For example, it would be perfectly valid for the compiler/linker to generate 
a bunch of assignment and "memset" type statements that are executed before 
main().