.abicalls .set noreorder .set nomacro /* The GNU and SGI linkers differ in their implementation of -init and -fini. With the GNU linker, there can only be a single -init option, and the linker simply sets DT_INIT to that value. gcc's initialization and finalization code can go directly in .init, with the prologue and epilogue of the main initialization routine being provided by external object files (*crti.o and *crtn.o in this case). The SGI linker instead accepts several -init options. It will set DT_INIT to a linker-created function (placed in .init) that calls each of the -init functions in turn. If there is any user code in .init, this linker-created function will be placed after it. Note that such user code is not treated specially; it will only be called if the -init options arrange for it to be called. In theory, the SGI model should allow the crti, crtn and intermediate code to go in .init, just like it can with the GNU linker. However, doing this seems to confuse the linker and triggers an internal error: ld32: FATAL 2 : Internal: at ../../ld/mips_code.c mips_code_fixup() text section overflow! (seen with MIPSpro 7.30). We therefore put everything in a special .gcc_init section instead. */ .section .gcc_init,"ax",@progbits .globl __gcc_init __gcc_init: #if _MIPS_SIM == _ABIO32 addiu $sp,$sp,-16 sw $31,0($sp) #else daddiu $sp,$sp,-16 sd $31,0($sp) sd $28,8($sp) #endif .section .gcc_fini,"ax",@progbits .globl __gcc_fini __gcc_fini: #if _MIPS_SIM == _ABIO32 addiu $sp,$sp,-16 sw $31,0($sp) #else daddiu $sp,$sp,-16 sd $31,0($sp) sd $28,8($sp) #endif /* This object will typically be included in the final link for both shared libraries and executable, and we need to hide the symbols to prevent possible symbol preemption warnings from the SGI linker. */ .hidden __gcc_init .hidden __gcc_fini