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tm.texi (TARGET_SWITCHES, [...]): Adjust markup. 

* doc/tm.texi (TARGET_SWITCHES, TARGET_OPTIONS): Adjust markup.
	Document use of N_(...), and show it in examples.  Note that
	documentation should be added to invoke.texi.  Avoid an overfull
	hbox.

From-SVN: r42965
This commit is contained in:
Joseph Myers 2001-06-07 17:41:27 +01:00 committed by Joseph Myers
parent fcebb2ddda
commit 561c1ae113
2 changed files with 20 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2001-06-07 Joseph S. Myers <jsm28@cam.ac.uk>
* doc/tm.texi (TARGET_SWITCHES, TARGET_OPTIONS): Adjust markup.
Document use of N_(...), and show it in examples. Note that
documentation should be added to invoke.texi. Avoid an overfull
hbox.
Thu Jun 7 17:09:50 CEST 2001 Jan Hubicka <jh@suse.cz>
* toplev.c (rest_of_compilation): Revert previous patch.

18
gcc/doc/tm.texi
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@ -630,11 +630,15 @@ with a subgrouping for each command option.
Each subgrouping contains a string constant, that defines the option
name, a number, which contains the bits to set in
@code{target_flags}, and a second string which is the description
displayed by --help. If the number is negative then the bits specified
displayed by @option{--help}. If the number is negative then the bits specified
by the number are cleared instead of being set. If the description
string is present but empty, then no help information will be displayed
for that option, but it will not count as an undocumented option. The
actual option name is made by appending @samp{-m} to the specified name.
Non-empty description strings should be marked with @code{N_(@dots{})} for
@command{xgettext}. In addition to the description for @option{--help},
more detailed documentation for each option should be added to
@file{invoke.texi}.
One of the subgroupings should have a null string. The number in
this grouping is the default value for @code{target_flags}. Any
@ -646,7 +650,8 @@ with opposite meanings, and picks the latter as the default:
@smallexample
#define TARGET_SWITCHES \
@{ @{ "68020", TARGET_MASK_68020, "" @}, \
@{ "68000", -TARGET_MASK_68020, "Compile for the 68000" @}, \
@{ "68000", -TARGET_MASK_68020, \
N_("Compile for the 68000") @}, \
@{ "", TARGET_MASK_68020, "" @}@}
@end smallexample
@ -657,10 +662,12 @@ options that have values. Its definition is an initializer with a
subgrouping for each command option.
Each subgrouping contains a string constant, that defines the fixed part
of the option name, the address of a variable, and a description string.
of the option name, the address of a variable, and a description string
(which should again be marked with @code{N_(@dots{})}).
The variable, type @code{char *}, is set to the variable part of the
given option if the fixed part matches. The actual option name is made
by appending @samp{-m} to the specified name.
by appending @samp{-m} to the specified name. Again, each option should
also be documented in @file{invoke.texi}.
Here is an example which defines @samp{-mshort-data-@var{number}}. If the
given option is @samp{-mshort-data-512}, the variable @code{m88k_short_data}
@ -669,7 +676,8 @@ will be set to the string @code{"512"}.
@smallexample
extern char *m88k_short_data;
#define TARGET_OPTIONS \
@{ @{ "short-data-", &m88k_short_data, "Specify the size of the short data section" @} @}
@{ @{ "short-data-", &m88k_short_data, \
N_("Specify the size of the short data section") @} @}
@end smallexample
@findex TARGET_VERSION