Well, I know that this is an old question, but I also found it frustrating that there is no precise info about options that are used during the linking process. This answer shows my journey to find them. First of all, I was looking into official docs https://gcc.gnu.org/onlinedocs/ – I searched the GCC Manual and … Read more
GNU ld can do that on ELF platforms. Here is how to do it with a linker version script: /* foo.c */ int foo() { return 42; } int bar() { return foo() + 1; } int baz() { return bar() – 1; } gcc -fPIC -shared -o libfoo.so foo.c && nm -D libfoo.so | … Read more
Afaik LD keeps the symbols in the section even if symbols are not referenced. (–gc-sections). Usually used for sections that have some special meaning in the binary startup process, more or less to mark the roots of the dependency tree. (For Sabuncu below) Dependency tree: If you eliminate unused code, you analyze the code and … Read more
Not exactly kosher, but after digging through the source code for GNU ld it looks like you can specify the address of section after it is defined. The following linker script should give you the desired behavior: MEMORY { ram (rwx) : ORIGIN = 0x10000, LENGTH = 0x0002000 } SECTIONS { .bss (NOLOAD) : { … Read more