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gas/
2004-04-30 H.J. Lu <hongjiu.lu@intel.com> * config/obj-elf.c (get_section): New function. (obj_elf_change_section): Support multiple sections with same name. gas/testsuite/ 2004-04-30 H.J. Lu <hongjiu.lu@intel.com> * gas/elf/elf.exp: Remove group1, add group1a and group1b for section group. * gas/elf/group1a.d: New file. * gas/elf/group1b.d: Likewise. * gas/elf/group1.e: Removed.
This commit is contained in:
H.J. Lu
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45c5e9ed66
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86654c128f
@ -1,3 +1,9 @@
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2004-04-30 H.J. Lu <hongjiu.lu@intel.com>
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* config/obj-elf.c (get_section): New function.
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(obj_elf_change_section): Support multiple sections with same
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name.
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2004-04-30 Nick Clifton <nickc@redhat.com>
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* config/tc-arm.c (create_register_alias): Fix typo checking for
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@ -469,6 +469,34 @@ struct section_stack
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static struct section_stack *section_stack;
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struct section_group
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{
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const char *name;
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const char *group_name;
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asection *section;
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};
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static void
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get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf)
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{
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struct section_group *group = inf;
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const char *group_name = elf_group_name (sec);
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/* Check if we have found the section we are looking for. */
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if (group->section)
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return;
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if ((sec->name == group->name
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|| (sec->name != NULL
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&& group->name != NULL
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&& strcmp (sec->name, group->name) == 0))
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&& (group_name == group->group_name
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|| (group_name != NULL
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&& group->group_name != NULL
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&& strcmp (group_name, group->group_name) == 0)))
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group->section = sec;
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}
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/* Handle the .section pseudo-op. This code supports two different
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syntaxes.
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@ -496,10 +524,10 @@ obj_elf_change_section (const char *name,
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int linkonce,
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int push)
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{
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asection *old_sec;
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segT sec;
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flagword flags;
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const struct bfd_elf_special_section *ssect;
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struct section_group group;
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#ifdef md_flush_pending_output
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md_flush_pending_output ();
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@ -520,8 +548,19 @@ obj_elf_change_section (const char *name,
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previous_section = now_seg;
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previous_subsection = now_subseg;
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old_sec = bfd_get_section_by_name (stdoutput, name);
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sec = subseg_new (name, 0);
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group.name = name;
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group.group_name = group_name;
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group.section = NULL;
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bfd_map_over_sections (stdoutput, get_section, &group);
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if (group.section)
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{
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sec = group.section;
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subseg_set (sec, 0);
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}
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else
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sec = subseg_force_new (name, 0);
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ssect = _bfd_elf_get_sec_type_attr (stdoutput, name);
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if (ssect != NULL)
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@ -532,7 +571,7 @@ obj_elf_change_section (const char *name,
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type = ssect->type;
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else if (type != ssect->type)
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{
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if (old_sec == NULL
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if (group.section == NULL
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/* FIXME: gcc, as of 2002-10-22, will emit
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.section .init_array,"aw",@progbits
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@ -556,7 +595,7 @@ obj_elf_change_section (const char *name,
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}
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}
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if (old_sec == NULL && (attr & ~ssect->attr) != 0)
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if (group.section == NULL && (attr & ~ssect->attr) != 0)
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{
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/* As a GNU extension, we permit a .note section to be
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allocatable. If the linker sees an allocatable .note
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@ -582,12 +621,13 @@ obj_elf_change_section (const char *name,
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override = TRUE;
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else
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{
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as_warn (_("setting incorrect section attributes for %s"),
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name);
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if (group_name == NULL)
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as_warn (_("setting incorrect section attributes for %s"),
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name);
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override = TRUE;
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}
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}
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if (!override && old_sec == NULL)
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if (!override && group.section == NULL)
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attr |= ssect->attr;
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}
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@ -609,7 +649,10 @@ obj_elf_change_section (const char *name,
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flags = md_elf_section_flags (flags, attr, type);
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#endif
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if (old_sec == NULL)
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if (linkonce)
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flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
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if (group.section == NULL)
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{
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symbolS *secsym;
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@ -617,8 +660,6 @@ obj_elf_change_section (const char *name,
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if (type == SHT_NOBITS)
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seg_info (sec)->bss = 1;
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if (linkonce)
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flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
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bfd_set_section_flags (stdoutput, sec, flags);
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if (flags & SEC_MERGE)
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sec->entsize = entsize;
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@ -636,18 +677,15 @@ obj_elf_change_section (const char *name,
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/* If section attributes are specified the second time we see a
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particular section, then check that they are the same as we
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saw the first time. */
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if (((old_sec->flags ^ flags)
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if (((group.section->flags ^ flags)
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& (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE
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| SEC_EXCLUDE | SEC_SORT_ENTRIES | SEC_MERGE | SEC_STRINGS
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| SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
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| SEC_THREAD_LOCAL)))
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as_warn (_("ignoring changed section attributes for %s"), name);
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if ((flags & SEC_MERGE) && old_sec->entsize != (unsigned) entsize)
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if ((flags & SEC_MERGE)
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&& group.section->entsize != (unsigned) entsize)
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as_warn (_("ignoring changed section entity size for %s"), name);
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if ((attr & SHF_GROUP) != 0
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&& (elf_group_name (old_sec) == NULL
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|| strcmp (elf_group_name (old_sec), group_name) != 0))
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as_warn (_("ignoring new section group for %s"), name);
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}
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#ifdef md_elf_section_change_hook
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@ -1,3 +1,13 @@
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2004-04-30 H.J. Lu <hongjiu.lu@intel.com>
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* gas/elf/elf.exp: Remove group1, add group1a and group1b for
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section group.
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* gas/elf/group1a.d: New file.
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* gas/elf/group1b.d: Likewise.
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* gas/elf/group1.e: Removed.
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2004-04-30 Nick Clifton <nickc@redhat.com>
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* gas/arm/reg-alias.s: New file: Test case sensitive register
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@ -50,7 +50,8 @@ if { ([istarget "*-*-elf*"]
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run_dump_test "ehopt0"
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run_dump_test "group0a"
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run_dump_test "group0b"
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run_list_test "group1" "" "" ""
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run_dump_test "group1a"
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run_dump_test "group1b"
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run_dump_test "section0"
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run_dump_test "section1"
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run_list_test "section2" "$target_machine" "-al" ""
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@ -1,7 +0,0 @@
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Symbol table '.symtab' contains 4 entries:
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Num: Value[ ]* Size Type Bind Vis Ndx Name
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0: 0+0 0 NOTYPE LOCAL DEFAULT UND
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1: 0+0 0 SECTION LOCAL DEFAULT 1
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2: 0+0 0 SECTION LOCAL DEFAULT 2
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3: 0+0 0 SECTION LOCAL DEFAULT 3
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10
gas/testsuite/gas/elf/group1a.d
Normal file
10
gas/testsuite/gas/elf/group1a.d
Normal file
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#readelf: -SW
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#name: group section with multiple sections of same name
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#source: group1.s
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#...
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[ ]*\[.*\][ ]+\.text[ ]+PROGBITS.*[ ]+AX[ ]+.*
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#...
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[ ]*\[.*\][ ]+\.text[ ]+PROGBITS.*[ ]+AXG[ ]+.*
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[ ]*\[.*\][ ]+\.foo_group[ ]+GROUP.*
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#pass
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9
gas/testsuite/gas/elf/group1b.d
Normal file
9
gas/testsuite/gas/elf/group1b.d
Normal file
@ -0,0 +1,9 @@
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#readelf: -g
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#name: group section with multiple sections of same name
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#source: group1.s
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#...
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COMDAT group section `.foo_group' \[.foo_group\] contains 1 sections:
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[ ]+\[Index\][ ]+Name
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[ ]+\[.*\][ ]+.text
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#pass
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