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dwarf2out.h (dwarf2out_frame_finish): Conditionalize outputting eh frame info.

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* dwarf2out.h (dwarf2out_frame_finish): Conditionalize outputting eh
	frame info.
	* doc/tm.texi: Document interaction between TARGET_UNWIND_INFO and
	DWARF2_UNWIND_INFO.

From-SVN: r85871
This commit is contained in:
Paul Brook 2004-08-12 13:45:44 +00:00 committed by Paul Brook
parent db24c53d55
commit 5cf58f28c3
3 changed files with 16 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-08-12 Paul Brook <paul@codesourcery.com>
* dwarf2out.h (dwarf2out_frame_finish): Conditionalize outputting eh
frame info.
* doc/tm.texi: Document interaction between TARGET_UNWIND_INFO and
DWARF2_UNWIND_INFO.
2004-08-12 Ben Elliston <bje@au.ibm.com>
PR target/16286

11
gcc/doc/tm.texi
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@ -7558,12 +7558,13 @@ Otherwise, if your target supports this information (if it defines
or @samp{OBJECT_FORMAT_ELF}), GCC will provide a default definition of
1.
If this macro is defined to 1, the DWARF 2 unwinder will be the default
exception handling mechanism; otherwise, @code{setjmp}/@code{longjmp} will be used by
default.
If @code{TARGET_UNWIND_INFO} is defined, the target specific unwinder
will be used in all cases. Defining this macro will enable the generation
of DWARF 2 frame debugging information.
If this macro is defined to anything, the DWARF 2 unwinder will be used
instead of inline unwinders and @code{__unwind_function} in the non-@code{setjmp} case.
If @code{TARGET_UNWIND_INFO} is not defined, and this macro is defined to 1,
the DWARF 2 unwinder will be the default exception handling mechanism;
otherwise, @code{setjmp}/@code{longjmp} will be used by default.
@end defmac
@defmac TARGET_UNWIND_INFO

3
gcc/dwarf2out.c
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@ -2458,8 +2458,11 @@ dwarf2out_frame_finish (void)
if (write_symbols == DWARF2_DEBUG || write_symbols == VMS_AND_DWARF2_DEBUG)
output_call_frame_info (0);
#ifndef TARGET_UNWIND_INFO
/* Output another copy for the unwinder. */
if (! USING_SJLJ_EXCEPTIONS && (flag_unwind_tables || flag_exceptions))
output_call_frame_info (1);
#endif
}
#endif