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Add new command line option "--no-omagic" which undoes the effects of -N.

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This commit is contained in:
Nick Clifton 2002-10-23 13:24:10 +00:00
parent e82ce5296f
commit 63fd3b826b
4 changed files with 30 additions and 2 deletions
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8
ld/ChangeLog
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@ -1,3 +1,11 @@
2002-10-23 Nick Clifton <nickc@redhat.com>
* lexsup.c (OPTION_NO_OMAGIC): Define.
(ld_options): Add "no-omagic" option.
(parse_args): Parse --no-omagic.
* ld.texinfo: Document --no-omagic.
* NEWS: Mention new option.
2002-10-21 Danny Smith <dannysmith@users.sourceforeg.net>
* scripttempl/pe.sc (__RUNTIME_PSEUDO_RELOC_LIST__,

2
ld/NEWS
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@ -1,5 +1,7 @@
-*- text -*-
* Added --no-omagic to undo the effects of the -N option.
* Support for Texas Instruments TMS320C4x and TMS320C3x series of
DSP's contributed by Michael Hayes and Svein E. Seldal.

13
ld/ld.texinfo
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@ -660,8 +660,17 @@ Turn off page alignment of sections, and mark the output as
@item -N
@itemx --omagic
Set the text and data sections to be readable and writable. Also, do
not page-align the data segment. If the output format supports Unix
style magic numbers, mark the output as @code{OMAGIC}.
not page-align the data segment, and disable linking against shared
libraries. If the output format supports Unix style magic numbers,
mark the output as @code{OMAGIC}.
@kindex --no-omagic
@cindex OMAGIC
@item --no-omagic
This option negates most of the effects of the @option{-N} option. It
sets the text section to be read-only, and forces the data segment to
be page-aligned. Note - this option does not enable linking against
shared libraries. Use @option{-Bdynamic} for this.
@kindex -o @var{output}
@kindex --output=@var{output}

9
ld/lexsup.c
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@ -132,6 +132,7 @@ int parsing_defsym = 0;
#define OPTION_SPARE_DYNAMIC_TAGS (OPTION_DISCARD_NONE + 1)
#define OPTION_NO_DEFINE_COMMON (OPTION_SPARE_DYNAMIC_TAGS + 1)
#define OPTION_NOSTDLIB (OPTION_NO_DEFINE_COMMON + 1)
#define OPTION_NO_OMAGIC (OPTION_NOSTDLIB + 1)
/* The long options. This structure is used for both the option
parsing and the help text. */
@ -217,6 +218,8 @@ static const struct ld_option ld_options[] =
{ {"omagic", no_argument, NULL, 'N'},
'N', NULL, N_("Do not page align data, do not make text readonly"),
EXACTLY_TWO_DASHES },
{ {"no-omagic", no_argument, NULL, OPTION_NO_OMAGIC},
'\0', NULL, N_("Page align data, make text readonly"), EXACTLY_TWO_DASHES },
{ {"output", required_argument, NULL, 'o'},
'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
{ {NULL, required_argument, NULL, '\0'},
@ -745,6 +748,12 @@ parse_args (argc, argv)
config.magic_demand_paged = false;
config.dynamic_link = false;
break;
case OPTION_NO_OMAGIC:
config.text_read_only = true;
config.magic_demand_paged = true;
/* NB/ Does not set dynamic_link to true.
Use --call-shared or -Bdynamic for this. */
break;
case 'n':
config.magic_demand_paged = false;
config.dynamic_link = false;