> Yes. Instead of a direct call, load the fptr for _mcount and do an
> indirect call. That'll avoid the dynamic linker. You can conditionalize
> this on cfun->static_chain_decl to avoid the extra work when nested
> functions aren't involved.
Ah! yes, of course, writing the stub by hand. This c
On Mon, Oct 24, 2005 at 05:37:06PM +0200, Eric Botcazou wrote:
> Would that be fixable purely on the compiler side without too much kludgery?
Yes. Instead of a direct call, load the fptr for _mcount and do an
indirect call. That'll avoid the dynamic linker. You can conditionalize
this on cfun->
Hi,
As the title may hint at, the combination doesn't work because:
1. the static chain register is r15 and
2. mcount is called from the prologue and
3. r15 is correctly preserved in glibc/sysdeps/ia64/_mcount.S but
4. r15 is clobbered in the PLT:
5.3.6 Procedure Linkage Table
2.
