github.com/afumu/libc@v0.0.6/musl/src/math/i386/log10.s (about)

     1  .global log10
     2  .type log10,@function
     3  log10:
     4  	fldlg2
     5  	fldl 4(%esp)
     6  	fyl2x
     7  	fstpl 4(%esp)
     8  	fldl 4(%esp)
     9  	ret