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* config/tc-xtensa.c: Remove XTENSA_SECTION_RENAME ifdefs.
(add_section_rename): Delete. Inlined into... (build_section_rename): ...here. Use xstrdup instead of strdup. (xtensa_section_rename): Drop "const" from argument and return types. (md_show_usage): Indent to match show_usage(). * config/tc-xtensa.h: Remove XTENSA_SECTION_RENAME ifdefs. (tc_canonicalize_section_name): Define. (md_elf_section_rename): Remove unused macro. * doc/as.texinfo (Overview): Document Xtensa --rename-section option. * doc/c-xtensa.texi (Xtensa Options): Likewise. (Frame Directive): Delete.
This commit is contained in:
Bob Wilson
@ -1,3 +1,17 @@
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2004-11-04 Bob Wilson <bob.wilson@acm.org>
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* config/tc-xtensa.c: Remove XTENSA_SECTION_RENAME ifdefs.
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(add_section_rename): Delete. Inlined into...
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(build_section_rename): ...here. Use xstrdup instead of strdup.
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(xtensa_section_rename): Drop "const" from argument and return types.
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(md_show_usage): Indent to match show_usage().
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* config/tc-xtensa.h: Remove XTENSA_SECTION_RENAME ifdefs.
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(tc_canonicalize_section_name): Define.
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(md_elf_section_rename): Remove unused macro.
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* doc/as.texinfo (Overview): Document Xtensa --rename-section option.
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* doc/c-xtensa.texi (Xtensa Options): Likewise.
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(Frame Directive): Delete.
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2004-11-04 Daniel Jacobowitz <dan@debian.org>
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* configure.in: Remove arm-*-oabi and thumb-*-oabi.
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@ -517,10 +517,9 @@ static void set_expr_symbol_offset_diff
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bfd_boolean expr_is_equal (expressionS *, expressionS *);
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static void copy_expr (expressionS *, const expressionS *);
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#ifdef XTENSA_SECTION_RENAME
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/* Section renaming. */
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static void build_section_rename (const char *);
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static void add_section_rename (char *, char *);
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#endif
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/* ISA imported from bfd. */
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@ -647,9 +646,7 @@ enum
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option_no_workarounds,
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#ifdef XTENSA_SECTION_RENAME
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option_rename_section_name,
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#endif
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option_prefer_l32r,
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option_prefer_const16,
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@ -716,9 +713,7 @@ struct option md_longopts[] =
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{ "workaround-close-loop-end", no_argument, NULL,
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option_workaround_close_loop_end },
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#ifdef XTENSA_SECTION_RENAME
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{ "rename-section", required_argument, NULL, option_rename_section_name },
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#endif /* XTENSA_SECTION_RENAME */
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{ "link-relax", no_argument, NULL, option_link_relax },
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{ "no-link-relax", no_argument, NULL, option_no_link_relax },
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@ -837,11 +832,9 @@ md_parse_option (int c, char *arg)
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warn_unaligned_branch_targets = TRUE;
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return 1;
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#ifdef XTENSA_SECTION_RENAME
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case option_rename_section_name:
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build_section_rename (arg);
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return 1;
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#endif /* XTENSA_SECTION_RENAME */
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case 'Q':
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/* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
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@ -909,18 +902,14 @@ md_show_usage (FILE *stream)
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{
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fputs ("\n\
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Xtensa options:\n\
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--[no-]text-section-literals\n\
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[Do not] put literals in the text section\n\
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--[no-]absolute-literals\n\
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[Do not] default to use non-PC-relative literals\n\
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--[no-]target-align [Do not] try to align branch targets\n\
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--[no-]longcalls [Do not] emit 32-bit call sequences\n\
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--[no-]transform [Do not] transform instructions\n"
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#ifdef XTENSA_SECTION_RENAME
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"--rename-section old=new(:old1=new1)*\n\
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Rename section 'old' to 'new'\n"
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#endif /* XTENSA_SECTION_RENAME */
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, stream);
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--[no-]text-section-literals\n\
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[Do not] put literals in the text section\n\
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--[no-]absolute-literals\n\
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[Do not] default to use non-PC-relative literals\n\
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--[no-]target-align [Do not] try to align branch targets\n\
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--[no-]longcalls [Do not] emit 32-bit call sequences\n\
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--[no-]transform [Do not] transform instructions\n\
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--rename-section old=new Rename section 'old' to 'new'\n", stream);
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}
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@ -11996,9 +11985,7 @@ copy_expr (expressionS *dst, const expressionS *src)
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}
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/* Support for Tensilica's "--rename-section" option. */
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#ifdef XTENSA_SECTION_RENAME
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/* Support for the "--rename-section" option. */
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struct rename_section_struct
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{
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@ -12010,17 +11997,22 @@ struct rename_section_struct
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static struct rename_section_struct *section_rename;
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/* Parse the string oldname=new_name:oldname2=new_name2
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and call add_section_rename. */
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/* Parse the string "oldname=new_name(:oldname2=new_name2)*" and add
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entries to the section_rename list. Note: Specifying multiple
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renamings separated by colons is not documented and is retained only
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for backward compatibility. */
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static void
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build_section_rename (const char *arg)
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{
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struct rename_section_struct *r;
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char *this_arg = NULL;
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char *next_arg = NULL;
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for (this_arg = strdup (arg); this_arg != NULL; this_arg = next_arg)
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for (this_arg = xstrdup (arg); this_arg != NULL; this_arg = next_arg)
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{
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char *old_name, *new_name;
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if (this_arg)
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{
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next_arg = strchr (this_arg, ':');
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@ -12030,56 +12022,47 @@ build_section_rename (const char *arg)
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next_arg++;
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}
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}
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{
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char *old_name = this_arg;
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char *new_name = strchr (this_arg, '=');
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if (*old_name == '\0')
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{
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as_warn (_("ignoring extra '-rename-section' delimiter ':'"));
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continue;
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}
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if (!new_name || new_name[1] == '\0')
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{
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as_warn (_("ignoring invalid '-rename-section' "
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"specification: '%s'"), old_name);
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continue;
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}
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*new_name = '\0';
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new_name++;
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add_section_rename (old_name, new_name);
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}
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old_name = this_arg;
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new_name = strchr (this_arg, '=');
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if (*old_name == '\0')
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{
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as_warn (_("ignoring extra '-rename-section' delimiter ':'"));
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continue;
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}
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if (!new_name || new_name[1] == '\0')
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{
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as_warn (_("ignoring invalid '-rename-section' specification: '%s'"),
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old_name);
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continue;
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}
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*new_name = '\0';
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new_name++;
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/* Check for invalid section renaming. */
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for (r = section_rename; r != NULL; r = r->next)
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{
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if (strcmp (r->old_name, old_name) == 0)
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as_bad (_("section %s renamed multiple times"), old_name);
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if (strcmp (r->new_name, new_name) == 0)
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as_bad (_("multiple sections remapped to output section %s"),
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new_name);
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}
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/* Now add it. */
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r = (struct rename_section_struct *)
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xmalloc (sizeof (struct rename_section_struct));
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r->old_name = xstrdup (old_name);
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r->new_name = xstrdup (new_name);
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r->next = section_rename;
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section_rename = r;
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}
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}
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static void
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add_section_rename (char *old_name, char *new_name)
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{
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struct rename_section_struct *r = section_rename;
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/* Check for invalid section renaming. */
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for (r = section_rename; r != NULL; r = r->next)
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{
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if (strcmp (r->old_name, old_name) == 0)
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as_bad (_("section %s renamed multiple times"), old_name);
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if (strcmp (r->new_name, new_name) == 0)
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as_bad (_("multiple sections remapped to output section %s"),
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new_name);
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}
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/* Now add it. */
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r = (struct rename_section_struct *)
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xmalloc (sizeof (struct rename_section_struct));
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r->old_name = strdup (old_name);
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r->new_name = strdup (new_name);
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r->next = section_rename;
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section_rename = r;
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}
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const char *
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xtensa_section_rename (const char *name)
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char *
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xtensa_section_rename (char *name)
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{
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struct rename_section_struct *r = section_rename;
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@ -12091,5 +12074,3 @@ xtensa_section_rename (const char *name)
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return name;
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}
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#endif /* XTENSA_SECTION_RENAME */
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@ -287,15 +287,6 @@ typedef struct xtensa_segment_info_struct
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} xtensa_segment_info;
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/* Section renaming is only supported in Tensilica's version of GAS. */
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#ifdef XTENSA_SECTION_RENAME
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extern const char *xtensa_section_rename (const char *);
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#else
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/* Tensilica's section renaming feature is not included here. */
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#define xtensa_section_rename(name) (name)
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#endif /* XTENSA_SECTION_RENAME */
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extern const char *xtensa_target_format (void);
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extern void xtensa_init_fix_data (struct fix *);
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extern void xtensa_frag_init (fragS *);
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@ -312,6 +303,7 @@ extern void xtensa_elf_section_change_hook (void);
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extern int xtensa_unrecognized_line (int);
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extern bfd_boolean xtensa_check_inside_bundle (void);
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extern void xtensa_handle_align (fragS *);
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extern char *xtensa_section_rename (char *);
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#define TARGET_FORMAT xtensa_target_format ()
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#define TARGET_ARCH bfd_arch_xtensa
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@ -324,13 +316,13 @@ extern void xtensa_handle_align (fragS *);
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#define TC_FORCE_RELOCATION(fix) xtensa_force_relocation (fix)
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#define NO_PSEUDO_DOT xtensa_check_inside_bundle ()
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#define tc_canonicalize_symbol_name(s) xtensa_section_rename (s)
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#define tc_canonicalize_section_name(s) xtensa_section_rename (s)
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#define tc_init_after_args() xtensa_file_arch_init (stdoutput)
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#define tc_fix_adjustable(fix) xtensa_fix_adjustable (fix)
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#define tc_frob_label(sym) xtensa_frob_label (sym)
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#define tc_unrecognized_line(ch) xtensa_unrecognized_line (ch)
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#define md_do_align(a,b,c,d,e) xtensa_flush_pending_output ()
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#define md_elf_section_change_hook xtensa_elf_section_change_hook
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#define md_elf_section_rename(name) xtensa_section_rename (name)
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#define md_end xtensa_end
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#define md_flush_pending_output() xtensa_flush_pending_output ()
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#define md_operand(x)
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@ -424,6 +424,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
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[@b{--[no-]text-section-literals}] [@b{--[no-]absolute-literals}]
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[@b{--[no-]target-align}] [@b{--[no-]longcalls}]
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[@b{--[no-]transform}]
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[@b{--rename-section} @var{oldname}=@var{newname}]
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@end ifset
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@c man end
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@end smallexample
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@ -85,6 +85,11 @@ including both relaxation and optimization. The default is
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rare cases when the instructions must be exactly as specified in the
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assembly source. Using @samp{--no-transform} causes out of range
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instruction operands to be errors.
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@item --rename-section @var{oldname}=@var{newname}
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@kindex --rename-section
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Rename the @var{oldname} section to @var{newname}. This option can be used
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multiple times to rename multiple sections.
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@end table
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@node Xtensa Syntax
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@ -529,7 +534,6 @@ The following directives are available:
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* Literal Position Directive:: Specify Inline Literal Pool Locations.
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* Literal Prefix Directive:: Specify Literal Section Name Prefix.
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* Absolute Literals Directive:: Control PC-Relative vs. Absolute Literals.
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* Frame Directive:: Describe a stack frame.
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@end menu
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@node Schedule Directive
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@ -744,36 +748,6 @@ Otherwise, the default is to assume PC-relative @code{L32R} addressing.
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The @code{absolute-@-literals} directive can then be used to override
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the default determined by the command-line options.
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@node Frame Directive
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@subsection frame
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@cindex @code{frame} directive
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This directive tells the assembler to emit information to allow the
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debugger to locate a function's stack frame. The syntax is:
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@smallexample
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.frame @var{reg}, @var{size}
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@end smallexample
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where @var{reg} is the register used to hold the frame pointer (usually
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the same as the stack pointer) and @var{size} is the size in bytes of
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the stack frame. The @code{.frame} directive is typically placed
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near the @code{ENTRY} instruction for a function.
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In many circumstances, this information just duplicates the
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information given in the function's @code{ENTRY} instruction; however,
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there are two cases where this is not true:
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@enumerate
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@item
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The size of the stack frame is too big to fit in the immediate field
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of the @code{ENTRY} instruction.
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@item
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The frame pointer is different than the stack pointer, as with functions
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that call @code{alloca}.
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@end enumerate
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@c Local Variables:
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@c fill-column: 72
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@c End:
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