On Wed, Nov 2, 2016 at 2:27 PM, Ian Lance Taylor <i...@google.com> wrote: > On Mon, Oct 31, 2016 at 7:46 AM, Uros Bizjak <ubiz...@gmail.com> wrote: >> This function will be used in a follow-up patch to implement >> TARGET_EXPAND_DIVMOD_LIBFUNC for x86 targets. Other targets can call >> this function, so IMO it should be part of a generic library. >> >> 2016-10-31 Uros Bizjak <ubiz...@gmail.com> >> >> * Makefile.in (LIB2_DIVMOD_FUNCS): Add _divmoddi4. >> * libgcc2.c (__divmoddi4): New function. >> * libgcc2.h (__divmoddi4): Declare. >> * libgcc-std.ver.in (GCC_7.0.0): New. Add __PFX_divmoddi4 >> and __PFX_divmodti4. > > You aren't defining divmodti4 anywhere, so it seems premature to add > it to libgcc-std.ver.in.
It is created magically for x86_64, in the same way e.g. divti3 is created. objdump of x86_64 libgcc.a: --cut here-- ... _divmoddi4.o: file format elf64-x86-64 Disassembly of section .text: 0000000000000000 <__divmodti4>: 0: 41 57 push %r15 2: 41 56 push %r14 4: 49 89 f9 mov %rdi,%r9 ... --cut here-- Uros.
