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tm.texi (ENCODE_SECTION_INFO): Add documentation on how a tree representing a constant is passed to the macro.

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* doc/tm.texi (ENCODE_SECTION_INFO): Add documentation on how
	a tree representing a constant is passed to the macro.

From-SVN: r44836
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Kazu Hirata 2001-08-12 23:34:50 +00:00 committed by Kazu Hirata
parent d9f6800d4a
commit f0d1c3bd39
2 changed files with 16 additions and 7 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-08-12 Kazu Hirata <kazu@hxi.com>
* doc/tm.texi (ENCODE_SECTION_INFO): Add documentation on how
a tree representing a constant is passed to the macro.
2001-08-12 Richard Henderson <rth@redhat.com> 2001-08-12 Richard Henderson <rth@redhat.com>
* config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor): New. * config/rs6000/rs6000.c (rs6000_elf_asm_out_constructor): New.

18
gcc/doc/tm.texi
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@ -5600,14 +5600,18 @@ This macro is irrelevant if there is no separate readonly data section.
@findex ENCODE_SECTION_INFO @findex ENCODE_SECTION_INFO
@item ENCODE_SECTION_INFO (@var{decl}) @item ENCODE_SECTION_INFO (@var{decl})
Define this macro if references to a symbol must be treated differently Define this macro if references to a symbol or a constant must be
depending on something about the variable or function named by the treated differently depending on something about the variable or
symbol (such as what section it is in). function named by the symbol (such as what section it is in).
The macro definition, if any, is executed immediately after the rtl for The macro definition, if any, is executed under two circumstances. One
@var{decl} has been created and stored in @code{DECL_RTL (@var{decl})}. is immediately after the rtl for @var{decl} that represents a variable
The value of the rtl will be a @code{mem} whose address is a or a function has been created and stored in @code{DECL_RTL
@code{symbol_ref}. (@var{decl})}. The value of the rtl will be a @code{mem} whose address
is a @code{symbol_ref}. The other is immediately after the rtl for
@var{decl} that represents a constant has been created and stored in
@code{TREE_CST_RTL (@var{decl})}. The macro is called once for each
distinct constant in a source file.
@cindex @code{SYMBOL_REF_FLAG}, in @code{ENCODE_SECTION_INFO} @cindex @code{SYMBOL_REF_FLAG}, in @code{ENCODE_SECTION_INFO}
The usual thing for this macro to do is to record a flag in the The usual thing for this macro to do is to record a flag in the