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PR gold/12525

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* ehframe.cc (Eh_frame_hdr::get_fde_pc): Handle DW_EH_PE_datarel.
	Assert if we see DW_EH_PE_indirect.
	* target.h (Target::ehframe_datarel_base): New function.
	(Target::do_ehframe_datarel_base): New target function.
	* i386.cc (Target_i386::do_ehframe_datarel_base): New function.
	* x86_64.cc (Target_x86_64::do_ehframe_datarel_base): New
	function.
This commit is contained in:
Ian Lance Taylor
2011-07-02 00:03:25 +00:00
parent 3f26b7e8cb
commit 02d7cd4495
5 changed files with 69 additions and 1 deletions
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13
gold/target.h
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@@ -276,6 +276,15 @@ class Target
section_may_have_icf_unsafe_pointers(const char* section_name) const
{ return this->do_section_may_have_icf_unsafe_pointers(section_name); }
// Return the base to use for the PC value in an FDE when it is
// encoded using DW_EH_PE_datarel. This does not appear to be
// documented anywhere, but it is target specific. Any use of
// DW_EH_PE_datarel in gcc requires defining a special macro
// (ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX) to output the value.
uint64_t
ehframe_datarel_base() const
{ return this->do_ehframe_datarel_base(); }
// Return true if a reference to SYM from a reloc of type R_TYPE
// means that the current function may call an object compiled
// without -fsplit-stack. SYM is known to be defined in an object
@@ -521,6 +530,10 @@ class Target
&& !is_prefix_of(".eh_frame", section_name));
}
virtual uint64_t
do_ehframe_datarel_base() const
{ gold_unreachable(); }
// Virtual function which may be overridden by the child class. The
// default implementation is that any function not defined by the
// ABI is a call to a non-split function.