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- /*
- * This function is _not_ called directly. It is jumped to (so no return
- * address is on the stack) when attempting to use a symbol that has not yet
- * been resolved. The first time a jump symbol (such as a function call inside
- * a shared library) is used (before it gets resolved) it will jump here to
- * _dl_linux_resolve. When we get called the stack looks like this:
- * reloc_entry
- * tpnt
- *
- * This function saves all the registers, puts a copy of reloc_entry and tpnt
- * on the stack (as function arguments) then make the function call
- * _dl_linux_resolver(tpnt, reloc_entry). _dl_linux_resolver() figures out
- * where the jump symbol is _really_ supposed to have jumped to and returns
- * that to us. Once we have that, we overwrite tpnt with this fixed up
- * address. We then clean up after ourselves, put all the registers back how we
- * found them, then we jump to the fixed up address, which is where the jump
- * symbol that got us here really wanted to jump to in the first place.
- * -Erik Andersen
- */
- .text
- .globl _dl_linux_resolve
- .type _dl_linux_resolve,#function
- .align 2
- _dl_linux_resolve:
- stmdb sp!,{r0-r3,sl,fp}
- sub r1, ip, lr
- sub r1, r1, #4
- add r1, r1, r1
- ldr r0, [lr, #-4]
- mov r3,r0
- bl _dl_linux_resolver
- // str r0, [lr, #-4]
- mov ip, r0
- ldmia sp!,{r0-r3,sl,fp,lr}
- mov pc,ip
- .size _dl_linux_resolve, .-_dl_linux_resolve
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