What is Entry point?
The address where a program begins execution, recorded in the ELF header. In C it is usually start-up code such as _start, which initializes and then calls main.
Entry point in the explanations
The linker adds start-up objects supplied by the C runtime (such as crt1.o) to the program and makes the _start inside them the entry point.
In a C program, which statement is correct about the addres…The dynamic linker finds and loads the required shared libraries, applies relocations and binds symbols, then transfers control to the program's entry point.
What is the role of the dynamic linker (such as ld.so) when…The CPU saves the current instruction address, switches to a higher-privilege mode and jumps to the exception entry point set up by the OS.
What happens when the ecall instruction at the end of the R…
Questions that mention Entry point (3)
- In a C program, which statement is correct about the address where the OS first starts execution (the entry point)?
- What is the role of the dynamic linker (such as ld.so) when a dynamically linked program starts on Linux?
- What happens when the ecall instruction at the end of the RISC-V code above executes?
Related terms
Linker Dynamic linker System call Interrupt Address space layout randomization (ASLR) BSS section Dynamic linking Executable and Linkable Format (ELF) Global offset table Heap memory