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* doc/as.texinfo: Document M and S ELF section flags.

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* emultempl/elf32.em (gld_*_list_options): Include -z combreloc and
	-z nocombreloc in usage.
This commit is contained in:
Jakub Jelinek 2001-10-05 16:36:55 +00:00
parent 7e766c3b49
commit ec38dd0548
4 changed files with 23 additions and 1 deletions
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4
gas/ChangeLog
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@ -1,3 +1,7 @@
2001-10-05 Jakub Jelinek <jakub@redhat.com>
* doc/as.texinfo: Document M and S ELF section flags.
2001-10-05 Alan Modra <amodra@bigpond.net.au>
* subsegs.c (subseg_text_p): Return 0 for absolute section.

13
gas/doc/as.texinfo
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@ -4896,7 +4896,7 @@ This is one of the ELF section stack manipulation directives. The others are
For ELF targets, the @code{.section} directive is used like this:
@smallexample
.section @var{name} [, "@var{flags}"[, @@@var{type}]]
.section @var{name} [, "@var{flags}"[, @@@var{type}[, @@@var{entsize}]]]
@end smallexample
The optional @var{flags} argument is a quoted string which may contain any
@ -4908,6 +4908,10 @@ section is allocatable
section is writable
@item x
section is executable
@item M
section is mergeable
@item S
section contains zero terminated strings
@end table
The optional @var{type} argument may contain one of the following constants:
@ -4918,6 +4922,13 @@ section contains data
section does not contain data (i.e., section only occupies space)
@end table
If @var{flags} contains @code{M} flag, @var{type} argument must be specified
as well as @var{entsize} argument. Sections with @code{M} flag but not
@code{S} flag must contain fixed size constants, each @var{entsize} octets
long. Sections with both @code{M} and @code{S} must contain zero terminated
strings where each character is @var{entsize} bytes long. The linker may remove
duplicates within sections with the same name, same entity size and same flags.
If no flags are specified, the default flags depend upon the section name. If
the section name is not recognized, the default will be for the section to have
none of the above flags: it will not be allocated in memory, nor writable, nor

5
ld/ChangeLog
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@ -1,3 +1,8 @@
2001-10-05 Jakub Jelinek <jakub@redhat.com>
* emultempl/elf32.em (gld_*_list_options): Include -z combreloc and
-z nocombreloc in usage.
2001-10-03 Jim Blandy <jimb@redhat.com>
* genscripts.sh: Include a comment at the top of each generated

2
ld/emultempl/elf32.em
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@ -1555,10 +1555,12 @@ cat >>e${EMULATION_NAME}.c <<EOF
fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
fprintf (file, _(" -z nocombreloc\t\tDon't merge dynamic relocs into one section\n"));
fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));