13696e0464
Remove our definition for FUNCTION_PROFILER as it is wrong. Note that "jsr $28,_mcount" is a macro for ldq $27, _mcount($29) !literal!1 jsr $28, ($27), _mcount !lituse_jsr!1 1. The call to _mcount is added by alpha_expand_prologue after we load the gp. Our _mcount uses $27 for the incoming address, unlike OSF/1 and Linux, which use $28. This probably doesn't matter since we probably don't use $27 within _mcount itself. 2. You can't use this insn with _mcount because it uses the PLT, which clobbers the return address in $28. Note that the prologue_mcount pattern carefully avoids adding the lituse_jsr relocation so that we call through the GOT directly. Submitted by: Richard Henderson <rth@redhat.com> |
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