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Add "?" pseudo-flag to ELF .section/.pushsection directives.
This commit is contained in:
Roland McGrath
parent
ebf252ff9b
commit
01642c122a
@ -1,3 +1,11 @@
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2010-08-17 Roland McGrath <roland@redhat.com>
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* config/obj-elf.c (obj_elf_parse_section_letters): Take new
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boolean result parameter CLONE; set it if '?' flag letter seen.
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(obj_elf_section): Update caller. Handle that flag by copying
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the LINKONCE and GROUP_NAME state from NOW_SEG.
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* doc/as.texinfo (Section): Document the ? flag.
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2010-08-09 Cary Coutant <ccoutant@google.com>
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* as.c (show_usage): Don't list --compress-debug-sections if zlib not
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@ -420,7 +420,7 @@ obj_elf_local (int ignore ATTRIBUTE_UNUSED)
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do
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{
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symbolP = get_sym_from_input_line_and_check ();
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symbolP = get_sym_from_input_line_and_check ();
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c = *input_line_pointer;
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S_CLEAR_EXTERNAL (symbolP);
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symbol_get_obj (symbolP)->local = 1;
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@ -444,7 +444,7 @@ obj_elf_weak (int ignore ATTRIBUTE_UNUSED)
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do
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{
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symbolP = get_sym_from_input_line_and_check ();
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symbolP = get_sym_from_input_line_and_check ();
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c = *input_line_pointer;
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S_SET_WEAK (symbolP);
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symbol_get_obj (symbolP)->local = 1;
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@ -741,9 +741,10 @@ obj_elf_change_section (const char *name,
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}
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static bfd_vma
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obj_elf_parse_section_letters (char *str, size_t len)
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obj_elf_parse_section_letters (char *str, size_t len, bfd_boolean *clone)
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{
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bfd_vma attr = 0;
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*clone = FALSE;
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while (len > 0)
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{
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@ -773,6 +774,9 @@ obj_elf_parse_section_letters (char *str, size_t len)
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case 'T':
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attr |= SHF_TLS;
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break;
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case '?':
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*clone = TRUE;
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break;
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/* Compatibility. */
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case 'm':
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if (*(str - 1) == 'a')
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@ -974,13 +978,15 @@ obj_elf_section (int push)
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if (*input_line_pointer == '"')
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{
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bfd_boolean clone;
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beg = demand_copy_C_string (&dummy);
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if (beg == NULL)
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{
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ignore_rest_of_line ();
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return;
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}
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attr |= obj_elf_parse_section_letters (beg, strlen (beg));
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attr |= obj_elf_parse_section_letters (beg, strlen (beg), &clone);
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SKIP_WHITESPACE ();
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if (*input_line_pointer == ',')
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@ -1032,6 +1038,11 @@ obj_elf_section (int push)
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attr &= ~SHF_MERGE;
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}
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if ((attr & SHF_GROUP) != 0 && clone)
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{
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as_warn (_("? section flag ignored with G present"));
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clone = FALSE;
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}
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if ((attr & SHF_GROUP) != 0 && *input_line_pointer == ',')
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{
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++input_line_pointer;
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@ -1051,6 +1062,16 @@ obj_elf_section (int push)
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as_warn (_("group name for SHF_GROUP not specified"));
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attr &= ~SHF_GROUP;
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}
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if (clone)
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{
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const char *now_group = elf_group_name (now_seg);
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if (now_group != NULL)
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{
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group_name = xstrdup (now_group);
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linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0;
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}
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}
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}
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else
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{
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@ -8,7 +8,7 @@
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@c (2) for platform-specific directives, examine md_pseudo_op
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@c in config/tc-*.c
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@c (3) for object-format specific directives, examine obj_pseudo_op
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@c in config/obj-*.c
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@c in config/obj-*.c
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@c (4) portable directives in potable[] in read.c
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@c %**start of header
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@setfilename as.info
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@ -70,17 +70,17 @@
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@c instructions. Except in multi-column format, these tables look silly.
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@c Unfortunately, Texinfo doesn't have a general-purpose multi-col format, so
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@c the multi-col format is faked within @example sections.
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@c
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@c
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@c Again unfortunately, the natural size that fits on a page, for these tables,
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@c is different depending on whether or not smallbook is turned on.
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@c This matters, because of order: text flow switches columns at each page
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@c break.
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@c
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@c
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@c The format faked in this source works reasonably well for smallbook,
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@c not well for the default large-page format. This manual expects that if you
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@c turn on @smallbook, you will also uncomment the "@set SMALL" to enable the
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@c tables in question. You can turn on one without the other at your
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@c discretion, of course.
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@c discretion, of course.
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@ifinfo
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@set SMALL
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@c the insn tables look just as silly in info files regardless of smallbook,
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@ -246,7 +246,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
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[@b{--}|@var{files} @dots{}]
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@c
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@c Target dependent options are listed below. Keep the list sorted.
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@c Add an empty line for separation.
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@c Add an empty line for separation.
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@ifset ALPHA
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@emph{Target Alpha options:}
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@ -417,7 +417,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
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@emph{Target PDP11 options:}
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[@b{-mpic}|@b{-mno-pic}] [@b{-mall}] [@b{-mno-extensions}]
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[@b{-m}@var{extension}|@b{-mno-}@var{extension}]
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[@b{-m}@var{cpu}] [@b{-m}@var{machine}]
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[@b{-m}@var{cpu}] [@b{-m}@var{machine}]
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@end ifset
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@ifset PJ
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@ -469,7 +469,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
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@ifset TIC54X
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@emph{Target TIC54X options:}
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[@b{-mcpu=54[123589]}|@b{-mcpu=54[56]lp}] [@b{-mfar-mode}|@b{-mf}]
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[@b{-mcpu=54[123589]}|@b{-mcpu=54[56]lp}] [@b{-mfar-mode}|@b{-mf}]
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[@b{-merrors-to-file} @var{<filename>}|@b{-me} @var{<filename>}]
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@end ifset
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@ -859,11 +859,11 @@ is normally the M32R, but this option changes it to the M32RX.
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@item --warn-explicit-parallel-conflicts or --Wp
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Produce warning messages when questionable parallel constructs are
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encountered.
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encountered.
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@item --no-warn-explicit-parallel-conflicts or --Wnp
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Do not produce warning messages when questionable parallel constructs are
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encountered.
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Do not produce warning messages when questionable parallel constructs are
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encountered.
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@end table
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@end ifset
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@ -961,13 +961,13 @@ defined by the configuration option when building the assembler.
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Specify to use the 16-bit integer ABI.
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@item -mlong
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Specify to use the 32-bit integer ABI.
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Specify to use the 32-bit integer ABI.
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@item -mshort-double
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Specify to use the 32-bit double ABI.
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Specify to use the 32-bit double ABI.
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@item -mlong-double
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Specify to use the 64-bit double ABI.
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Specify to use the 64-bit double ABI.
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@item --force-long-branches
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Relative branches are turned into absolute ones. This concerns
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@ -1021,7 +1021,7 @@ Warn when the assembler switches to another architecture.
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@ifset TIC54X
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The following options are available when @value{AS} is configured for the 'c54x
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architecture.
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architecture.
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@table @gcctabopt
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@item -mfar-mode
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@ -1342,22 +1342,22 @@ a Z80 family processor.
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Assemble for Z80 processor.
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@item -r800
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Assemble for R800 processor.
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@item -ignore-undocumented-instructions
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@item -ignore-undocumented-instructions
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@itemx -Wnud
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Assemble undocumented Z80 instructions that also work on R800 without warning.
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@item -ignore-unportable-instructions
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@item -ignore-unportable-instructions
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@itemx -Wnup
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Assemble all undocumented Z80 instructions without warning.
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@item -warn-undocumented-instructions
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@item -warn-undocumented-instructions
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@itemx -Wud
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Issue a warning for undocumented Z80 instructions that also work on R800.
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@item -warn-unportable-instructions
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@item -warn-unportable-instructions
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@itemx -Wup
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Issue a warning for undocumented Z80 instructions that do not work on R800.
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@item -forbid-undocumented-instructions
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Issue a warning for undocumented Z80 instructions that do not work on R800.
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@item -forbid-undocumented-instructions
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@itemx -Fud
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Treat all undocumented instructions as errors.
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@item -forbid-unportable-instructions
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@item -forbid-unportable-instructions
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@itemx -Fup
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Treat undocumented Z80 instructions that do not work on R800 as errors.
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@end table
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@ -1614,7 +1614,7 @@ is the object file. Its default name is
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@end ifclear
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@ifset BOUT
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@ifset GENERIC
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@code{a.out}, or
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@code{a.out}, or
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@end ifset
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@code{b.out} when @command{@value{AS}} is configured for the Intel 80960.
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@end ifset
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@ -2463,7 +2463,7 @@ constants are an exception: they do not end statements.
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@end ifclear
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@ifset abnormal-separator
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@ifset HPPA
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A @dfn{statement} ends at a newline character (@samp{\n}) or an exclamation
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A @dfn{statement} ends at a newline character (@samp{\n}) or an exclamation
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point (@samp{!}). The newline or exclamation point is considered part of the
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preceding statement. Newlines and exclamation points within character
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constants are an exception: they do not end statements.
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@ -2519,7 +2519,7 @@ Whitespace before a label or after a colon is permitted, but you may not
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have whitespace between a label's symbol and its colon. @xref{Labels}.
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@ifset HPPA
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For HPPA targets, labels need not be immediately followed by a colon, but
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For HPPA targets, labels need not be immediately followed by a colon, but
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the definition of a label must begin in column zero. This also implies that
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only one label may be defined on each line.
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@end ifset
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@ -3474,7 +3474,7 @@ you may use them in debugging.
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@item @var{number}
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This is the number that was used in the local label definition. So if the
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label is written @samp{55:} then the number is @samp{55}.
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label is written @samp{55:} then the number is @samp{55}.
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@item @kbd{C-B}
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This unusual character is included so you do not accidentally invent a symbol
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@ -3482,7 +3482,7 @@ of the same name. The character has ASCII value of @samp{\002} (control-B).
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@item @emph{ordinal number}
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This is a serial number to keep the labels distinct. The first definition of
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@samp{0:} gets the number @samp{1}. The 15th definition of @samp{0:} gets the
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@samp{0:} gets the number @samp{1}. The 15th definition of @samp{0:} gets the
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number @samp{15}, and so on. Likewise the first definition of @samp{1:} gets
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the number @samp{1} and its 15th definition gets @samp{15} as well.
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@end table
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@ -3688,7 +3688,7 @@ table information for COFF.
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The SOM format for the HPPA supports a multitude of symbol attributes set with
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the @code{.EXPORT} and @code{.IMPORT} directives.
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The attributes are described in @cite{HP9000 Series 800 Assembly
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The attributes are described in @cite{HP9000 Series 800 Assembly
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Language Reference Manual} (HP 92432-90001) under the @code{IMPORT} and
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@code{EXPORT} assembler directive documentation.
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@end ifset
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@ -3990,7 +3990,7 @@ Some machine configurations provide additional directives.
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* File:: @code{.file}
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* Fill:: @code{.fill @var{repeat} , @var{size} , @var{value}}
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* Float:: @code{.float @var{flonums}}
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* Func:: @code{.func}
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* Func:: @code{.func}
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* Global:: @code{.global @var{symbol}}, @code{.globl @var{symbol}}
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@ifset ELF
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* Gnu_attribute:: @code{.gnu_attribute @var{tag},@var{value}}
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@ -4218,7 +4218,7 @@ write @samp{<4.3 !> 5.4!!>} to get the literal text @samp{4.3 > 5.4!}.
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@item Expression results as strings
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You can write @samp{%@var{expr}} to evaluate the expression @var{expr}
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and use the result as a string.
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and use the result as a string.
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@end ftable
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@node Ascii
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@ -4300,9 +4300,9 @@ should have an entry in @code{.eh_frame}. It initializes some internal
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data structures. Don't forget to close the function by
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@code{.cfi_endproc}.
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Unless @code{.cfi_startproc} is used along with parameter @code{simple}
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Unless @code{.cfi_startproc} is used along with parameter @code{simple}
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it also emits some architecture dependent initial CFI instructions.
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@section @code{.cfi_endproc}
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@cindex @code{cfi_endproc} directive
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@code{.cfi_endproc} is used at the end of a function where it closes its
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@ -4329,7 +4329,7 @@ or a symbol name. The default after @code{.cfi_startproc} is @code{.cfi_lsda 0x
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no LSDA.
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@section @code{.cfi_def_cfa @var{register}, @var{offset}}
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@code{.cfi_def_cfa} defines a rule for computing CFA as: @i{take
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@code{.cfi_def_cfa} defines a rule for computing CFA as: @i{take
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address from @var{register} and add @var{offset} to it}.
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@section @code{.cfi_def_cfa_register @var{register}}
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@ -4349,7 +4349,7 @@ value that is added/substracted from the previous offset.
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@section @code{.cfi_offset @var{register}, @var{offset}}
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Previous value of @var{register} is saved at offset @var{offset} from
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CFA.
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CFA.
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@section @code{.cfi_rel_offset @var{register}, @var{offset}}
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Previous value of @var{register} is saved at offset @var{offset} from
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@ -4362,25 +4362,25 @@ code it's annotating.
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Previous value of @var{register1} is saved in register @var{register2}.
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@section @code{.cfi_restore @var{register}}
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@code{.cfi_restore} says that the rule for @var{register} is now the
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same as it was at the beginning of the function, after all initial
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@code{.cfi_restore} says that the rule for @var{register} is now the
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same as it was at the beginning of the function, after all initial
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instruction added by @code{.cfi_startproc} were executed.
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@section @code{.cfi_undefined @var{register}}
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From now on the previous value of @var{register} can't be restored anymore.
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@section @code{.cfi_same_value @var{register}}
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Current value of @var{register} is the same like in the previous frame,
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Current value of @var{register} is the same like in the previous frame,
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i.e. no restoration needed.
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@section @code{.cfi_remember_state},
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First save all current rules for all registers by @code{.cfi_remember_state},
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then totally screw them up by subsequent @code{.cfi_*} directives and when
|
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everything is hopelessly bad, use @code{.cfi_restore_state} to restore
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@section @code{.cfi_remember_state},
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First save all current rules for all registers by @code{.cfi_remember_state},
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then totally screw them up by subsequent @code{.cfi_*} directives and when
|
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everything is hopelessly bad, use @code{.cfi_restore_state} to restore
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the previous saved state.
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||||
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@section @code{.cfi_return_column @var{register}}
|
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Change return column @var{register}, i.e. the return address is either
|
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Change return column @var{register}, i.e. the return address is either
|
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directly in @var{register} or can be accessed by rules for @var{register}.
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@section @code{.cfi_signal_frame}
|
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@ -4421,13 +4421,13 @@ using the largest size.
|
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|
||||
@ifset COFF-ELF
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When using ELF or (as a GNU extension) PE, the @code{.comm} directive takes
|
||||
an optional third argument. This is the desired alignment of the symbol,
|
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an optional third argument. This is the desired alignment of the symbol,
|
||||
specified for ELF as a byte boundary (for example, an alignment of 16 means
|
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that the least significant 4 bits of the address should be zero), and for PE
|
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as a power of two (for example, an alignment of 5 means aligned to a 32-byte
|
||||
boundary). The alignment must be an absolute expression, and it must be a
|
||||
boundary). The alignment must be an absolute expression, and it must be a
|
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power of two. If @code{@value{LD}} allocates uninitialized memory for the
|
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common symbol, it will use the alignment when placing the symbol. If no
|
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common symbol, it will use the alignment when placing the symbol. If no
|
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alignment is specified, @command{@value{AS}} will set the alignment to the
|
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largest power of two less than or equal to the size of the symbol, up to a
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maximum of 16 on ELF, or the default section alignment of 4 on PE@footnote{This
|
||||
@ -4594,15 +4594,15 @@ This directive sets the value of @var{symbol} to @var{expression}.
|
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It is synonymous with @samp{.set}; see @ref{Set,,@code{.set}}.
|
||||
|
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@ifset HPPA
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The syntax for @code{equ} on the HPPA is
|
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The syntax for @code{equ} on the HPPA is
|
||||
@samp{@var{symbol} .equ @var{expression}}.
|
||||
@end ifset
|
||||
|
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@ifset Z80
|
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The syntax for @code{equ} on the Z80 is
|
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@samp{@var{symbol} equ @var{expression}}.
|
||||
The syntax for @code{equ} on the Z80 is
|
||||
@samp{@var{symbol} equ @var{expression}}.
|
||||
On the Z80 it is an eror if @var{symbol} is already defined,
|
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but the symbol is not protected from later redefinition.
|
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but the symbol is not protected from later redefinition.
|
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Compare @ref{Equiv}.
|
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@end ifset
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|
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@ -4614,7 +4614,7 @@ the assembler will signal an error if @var{symbol} is already defined. Note a
|
||||
symbol which has been referenced but not actually defined is considered to be
|
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undefined.
|
||||
|
||||
Except for the contents of the error message, this is roughly equivalent to
|
||||
Except for the contents of the error message, this is roughly equivalent to
|
||||
@smallexample
|
||||
.ifdef SYM
|
||||
.err
|
||||
@ -4803,13 +4803,13 @@ Record a @sc{gnu} object attribute for this file. @xref{Object Attributes}.
|
||||
@cindex @code{hidden} directive
|
||||
@cindex visibility
|
||||
This is one of the ELF visibility directives. The other two are
|
||||
@code{.internal} (@pxref{Internal,,@code{.internal}}) and
|
||||
@code{.internal} (@pxref{Internal,,@code{.internal}}) and
|
||||
@code{.protected} (@pxref{Protected,,@code{.protected}}).
|
||||
|
||||
This directive overrides the named symbols default visibility (which is set by
|
||||
their binding: local, global or weak). The directive sets the visibility to
|
||||
@code{hidden} which means that the symbols are not visible to other components.
|
||||
Such symbols are always considered to be @code{protected} as well.
|
||||
Such symbols are always considered to be @code{protected} as well.
|
||||
@end ifset
|
||||
|
||||
@node hword
|
||||
@ -4992,7 +4992,7 @@ integers. On the H8/300H and the Renesas SH, however, @code{.int} emits
|
||||
@cindex @code{internal} directive
|
||||
@cindex visibility
|
||||
This is one of the ELF visibility directives. The other two are
|
||||
@code{.hidden} (@pxref{Hidden,,@code{.hidden}}) and
|
||||
@code{.hidden} (@pxref{Hidden,,@code{.hidden}}) and
|
||||
@code{.protected} (@pxref{Protected,,@code{.protected}}).
|
||||
|
||||
This directive overrides the named symbols default visibility (which is set by
|
||||
@ -5219,7 +5219,7 @@ This option will set the @code{epilogue_begin} register in the
|
||||
|
||||
@item is_stmt @var{value}
|
||||
This option will set the @code{is_stmt} register in the
|
||||
@code{.debug_line} state machine to @code{value}, which must be
|
||||
@code{.debug_line} state machine to @code{value}, which must be
|
||||
either 0 or 1.
|
||||
|
||||
@item isa @var{value}
|
||||
@ -5435,7 +5435,7 @@ l&:
|
||||
@end table
|
||||
|
||||
Note: this problem of correctly identifying string parameters to pseudo ops
|
||||
also applies to the identifiers used in @code{.irp} (@pxref{Irp})
|
||||
also applies to the identifiers used in @code{.irp} (@pxref{Irp})
|
||||
and @code{.irpc} (@pxref{Irpc}) as well.
|
||||
|
||||
@item .endm
|
||||
@ -5577,13 +5577,13 @@ undefined.
|
||||
@cindex @code{popsection} directive
|
||||
@cindex Section Stack
|
||||
This is one of the ELF section stack manipulation directives. The others are
|
||||
@code{.section} (@pxref{Section}), @code{.subsection} (@pxref{SubSection}),
|
||||
@code{.pushsection} (@pxref{PushSection}), and @code{.previous}
|
||||
@code{.section} (@pxref{Section}), @code{.subsection} (@pxref{SubSection}),
|
||||
@code{.pushsection} (@pxref{PushSection}), and @code{.previous}
|
||||
(@pxref{Previous}).
|
||||
|
||||
This directive replaces the current section (and subsection) with the top
|
||||
section (and subsection) on the section stack. This section is popped off the
|
||||
stack.
|
||||
stack.
|
||||
@end ifset
|
||||
|
||||
@ifset ELF
|
||||
@ -5660,7 +5660,7 @@ their binding: local, global or weak). The directive sets the visibility to
|
||||
@code{protected} which means that any references to the symbols from within the
|
||||
components that defines them must be resolved to the definition in that
|
||||
component, even if a definition in another component would normally preempt
|
||||
this.
|
||||
this.
|
||||
@end ifset
|
||||
|
||||
@node Psize
|
||||
@ -5697,8 +5697,8 @@ expanded. @xref{Macro}.
|
||||
@cindex @code{pushsection} directive
|
||||
@cindex Section Stack
|
||||
This is one of the ELF section stack manipulation directives. The others are
|
||||
@code{.section} (@pxref{Section}), @code{.subsection} (@pxref{SubSection}),
|
||||
@code{.popsection} (@pxref{PopSection}), and @code{.previous}
|
||||
@code{.section} (@pxref{Section}), @code{.subsection} (@pxref{SubSection}),
|
||||
@code{.popsection} (@pxref{PopSection}), and @code{.previous}
|
||||
(@pxref{Previous}).
|
||||
|
||||
This directive pushes the current section (and subsection) onto the
|
||||
@ -5868,7 +5868,7 @@ taken as a subsection number (@pxref{Sub-Sections}).
|
||||
|
||||
@cindex Section Stack
|
||||
This is one of the ELF section stack manipulation directives. The others are
|
||||
@code{.subsection} (@pxref{SubSection}), @code{.pushsection}
|
||||
@code{.subsection} (@pxref{SubSection}), @code{.pushsection}
|
||||
(@pxref{PushSection}), @code{.popsection} (@pxref{PopSection}), and
|
||||
@code{.previous} (@pxref{Previous}).
|
||||
|
||||
@ -5898,6 +5898,8 @@ section contains zero terminated strings
|
||||
section is a member of a section group
|
||||
@item T
|
||||
section is used for thread-local-storage
|
||||
@item ?
|
||||
section is a member of the previously-current section's group, if any
|
||||
@end table
|
||||
|
||||
The optional @var{type} argument may contain one of the following constants:
|
||||
@ -5962,6 +5964,13 @@ the Merge flag should come first, like this:
|
||||
.section @var{name} , "@var{flags}"MG, @@@var{type}, @var{entsize}, @var{GroupName}[, @var{linkage}]
|
||||
@end smallexample
|
||||
|
||||
If @var{flags} contains the @code{?} symbol then it may not also contain the
|
||||
@code{G} symbol and the @var{GroupName} or @var{linkage} fields should not be
|
||||
present. Instead, @code{?} says to consider the section that's current before
|
||||
this directive. If that section used @code{G}, then the new section will use
|
||||
@code{G} with those same @var{GroupName} and @var{linkage} fields implicitly.
|
||||
If not, then the @code{?} symbol has no effect.
|
||||
|
||||
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
|
||||
@ -6118,7 +6127,7 @@ This directive emits @var{size} bytes, each of value @var{fill}. Both
|
||||
@section @code{.sleb128 @var{expressions}}
|
||||
|
||||
@cindex @code{sleb128} directive
|
||||
@var{sleb128} stands for ``signed little endian base 128.'' This is a
|
||||
@var{sleb128} stands for ``signed little endian base 128.'' This is a
|
||||
compact, variable length representation of numbers used by the DWARF
|
||||
symbolic debugging format. @xref{Uleb128, ,@code{.uleb128}}.
|
||||
|
||||
@ -6212,7 +6221,7 @@ All five fields are specified.
|
||||
|
||||
@node String
|
||||
@section @code{.string} "@var{str}", @code{.string8} "@var{str}", @code{.string16}
|
||||
"@var{str}", @code{.string32} "@var{str}", @code{.string64} "@var{str}"
|
||||
"@var{str}", @code{.string32} "@var{str}", @code{.string64} "@var{str}"
|
||||
|
||||
@cindex string, copying to object file
|
||||
@cindex string8, copying to object file
|
||||
@ -6230,7 +6239,7 @@ one string to copy, separated by commas. Unless otherwise specified for a
|
||||
particular machine, the assembler marks the end of each string with a 0 byte.
|
||||
You can use any of the escape sequences described in @ref{Strings,,Strings}.
|
||||
|
||||
The variants @code{string16}, @code{string32} and @code{string64} differ from
|
||||
The variants @code{string16}, @code{string32} and @code{string64} differ from
|
||||
the @code{string} pseudo opcode in that each 8-bit character from @var{str} is
|
||||
copied and expanded to 16, 32 or 64 bits respectively. The expanded characters
|
||||
are stored in target endianness byte order.
|
||||
@ -6271,8 +6280,8 @@ before further assembly.
|
||||
@cindex @code{subsection} directive
|
||||
@cindex Section Stack
|
||||
This is one of the ELF section stack manipulation directives. The others are
|
||||
@code{.section} (@pxref{Section}), @code{.pushsection} (@pxref{PushSection}),
|
||||
@code{.popsection} (@pxref{PopSection}), and @code{.previous}
|
||||
@code{.section} (@pxref{Section}), @code{.pushsection} (@pxref{PushSection}),
|
||||
@code{.popsection} (@pxref{PopSection}), and @code{.previous}
|
||||
(@pxref{Previous}).
|
||||
|
||||
This directive replaces the current subsection with @code{name}. The current
|
||||
@ -6488,7 +6497,7 @@ Note: Some targets support extra types in addition to those listed above.
|
||||
@section @code{.uleb128 @var{expressions}}
|
||||
|
||||
@cindex @code{uleb128} directive
|
||||
@var{uleb128} stands for ``unsigned little endian base 128.'' This is a
|
||||
@var{uleb128} stands for ``unsigned little endian base 128.'' This is a
|
||||
compact, variable length representation of numbers used by the DWARF
|
||||
symbolic debugging format. @xref{Sleb128, ,@code{.sleb128}}.
|
||||
|
||||
@ -6549,12 +6558,12 @@ Similar to the directive @code{.error}
|
||||
This directive sets the weak attribute on the comma separated list of symbol
|
||||
@code{names}. If the symbols do not already exist, they will be created.
|
||||
|
||||
On COFF targets other than PE, weak symbols are a GNU extension. This
|
||||
On COFF targets other than PE, weak symbols are a GNU extension. This
|
||||
directive sets the weak attribute on the comma separated list of symbol
|
||||
@code{names}. If the symbols do not already exist, they will be created.
|
||||
|
||||
On the PE target, weak symbols are supported natively as weak aliases.
|
||||
When a weak symbol is created that is not an alias, GAS creates an
|
||||
When a weak symbol is created that is not an alias, GAS creates an
|
||||
alternate symbol to hold the default value.
|
||||
|
||||
@node Weakref
|
||||
@ -7055,7 +7064,7 @@ family.
|
||||
@include c-m68hc11.texi
|
||||
@end ifset
|
||||
|
||||
@ifset MICROBLAZE
|
||||
@ifset MICROBLAZE
|
||||
@include c-microblaze.texi
|
||||
@end ifset
|
||||
|
||||
@ -7350,8 +7359,8 @@ things without first using the debugger to find the facts.
|
||||
|
||||
If you have contributed to GAS and your name isn't listed here,
|
||||
it is not meant as a slight. We just don't know about it. Send mail to the
|
||||
maintainer, and we'll correct the situation. Currently
|
||||
@c (January 1994),
|
||||
maintainer, and we'll correct the situation. Currently
|
||||
@c (January 1994),
|
||||
the maintainer is Ken Raeburn (email address @code{raeburn@@cygnus.com}).
|
||||
|
||||
Dean Elsner wrote the original @sc{gnu} assembler for the VAX.@footnote{Any
|
||||
|
||||
@ -1,3 +1,10 @@
|
||||
2010-08-17 Roland McGrath <roland@redhat.com>
|
||||
|
||||
* gas/elf/groupauto.s: New file.
|
||||
* gas/elf/groupautoa.d: New file.
|
||||
* gas/elf/groupautob.d: New file.
|
||||
* gas/elf/elf.exp (run_elf_list_test): Use them.
|
||||
|
||||
2010-08-06 Quentin Neill <quentin.neill@amd.com>
|
||||
|
||||
* gas/i386/arch-10-1.l: Add nopl instruction.
|
||||
|
||||
@ -37,7 +37,7 @@ proc run_elf_list_test { name suffix opts readelf_opts readelf_pipe } {
|
||||
}
|
||||
|
||||
# We're testing bits in obj-elf -- don't run on anything else.
|
||||
if { ([istarget "*-*-*elf*"]
|
||||
if { ([istarget "*-*-*elf*"]
|
||||
|| [istarget "*-*-linux*"]
|
||||
|| [istarget "m6811-*"]
|
||||
|| [istarget "m6812-*"]
|
||||
@ -70,7 +70,7 @@ if { ([istarget "*-*-*elf*"]
|
||||
}
|
||||
if { ([istarget "*arm*-*-*"]
|
||||
|| [istarget "xscale*-*-*"]) } {
|
||||
|
||||
|
||||
if { ([istarget "*-*-*eabi"]
|
||||
|| [istarget "*-*-linux-*"]
|
||||
|| [istarget "*-*-symbianelf"])} then {
|
||||
@ -85,7 +85,7 @@ if { ([istarget "*-*-*elf*"]
|
||||
# function prologues.
|
||||
if {![istarget "mn10300-*-*"]
|
||||
&& ![istarget "xtensa*-*-*"]
|
||||
&& ![istarget "am3*-*-*"]} then {
|
||||
&& ![istarget "am3*-*-*"]} then {
|
||||
run_dump_test "ehopt0"
|
||||
}
|
||||
case $target_triplet in {
|
||||
@ -102,10 +102,12 @@ if { ([istarget "*-*-*elf*"]
|
||||
run_dump_test "file"
|
||||
}
|
||||
}
|
||||
run_dump_test "group0a"
|
||||
run_dump_test "group0b"
|
||||
run_dump_test "group1a"
|
||||
run_dump_test "group1b"
|
||||
run_dump_test "group0a"
|
||||
run_dump_test "group0b"
|
||||
run_dump_test "group1a"
|
||||
run_dump_test "group1b"
|
||||
run_dump_test "groupautoa"
|
||||
run_dump_test "groupautob"
|
||||
case $target_triplet in {
|
||||
{ alpha*-*-* } { }
|
||||
{ cr16*-*-* } { }
|
||||
@ -128,21 +130,21 @@ if { ([istarget "*-*-*elf*"]
|
||||
}
|
||||
}
|
||||
run_dump_test "pseudo"
|
||||
run_dump_test "section0"
|
||||
run_dump_test "section1"
|
||||
run_dump_test "section0"
|
||||
run_dump_test "section1"
|
||||
if {! [istarget "h8300-*-*"]} then {
|
||||
# The h8300 port issues a warning message for
|
||||
# new sections created without atrributes.
|
||||
run_elf_list_test "section2" "$target_machine" "-al" "-s" ""
|
||||
}
|
||||
run_dump_test "section3"
|
||||
run_dump_test "section3"
|
||||
run_dump_test "section4"
|
||||
if {! [istarget "h8300-*-*"]} then {
|
||||
# The h8300 port issues a warning message for
|
||||
# new sections created without atrributes.
|
||||
run_elf_list_test "section5" "" "-al" "-SW" "| grep \" \\\\.test\\\[0-9\\\]\""
|
||||
}
|
||||
run_dump_test "struct"
|
||||
run_dump_test "struct"
|
||||
run_dump_test "symtab"
|
||||
run_dump_test "symver"
|
||||
|
||||
@ -159,10 +161,10 @@ if { ([istarget "*-*-*elf*"]
|
||||
run_elf_list_test "type" "" "" "-s" "| grep \"1 *\\\[FIONTCU\\\]\""
|
||||
}
|
||||
|
||||
run_dump_test "section6"
|
||||
run_dump_test "section7"
|
||||
run_dump_test "section8"
|
||||
run_dump_test "dwarf2-1"
|
||||
run_dump_test "dwarf2-2"
|
||||
run_dump_test "dwarf2-3"
|
||||
run_dump_test "section6"
|
||||
run_dump_test "section7"
|
||||
run_dump_test "section8"
|
||||
run_dump_test "dwarf2-1"
|
||||
run_dump_test "dwarf2-2"
|
||||
run_dump_test "dwarf2-3"
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user