+2020-02-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR gas/25381
+ * bfd-in2.h: Regenerated.
+ * elflink.c (_bfd_elf_gc_mark_extra_sections): Call mark_hook
+ on section if gc_mark of any of its linked-to sections is set
+ and don't set gc_mark again.
+ * section.c (asection): Add linked_to_symbol_name to map_head
+ union.
+
2020-02-06 Maciej W. Rozycki <macro@wdc.com>
* elf32-v850.c (v850_elf_relax_section): Fix the index used for
/* Early in the link process, map_head and map_tail are used to build
a list of input sections attached to an output section. Later,
output sections use these fields for a list of bfd_link_order
- structs. */
+ structs. The linked_to_symbol_name field is for ELF assembler
+ internal use. */
union {
struct bfd_link_order *link_order;
struct bfd_section *s;
+ const char *linked_to_symbol_name;
} map_head, map_tail;
} asection;
bfd_boolean
_bfd_elf_gc_mark_extra_sections (struct bfd_link_info *info,
- elf_gc_mark_hook_fn mark_hook ATTRIBUTE_UNUSED)
+ elf_gc_mark_hook_fn mark_hook)
{
bfd *ibfd;
&& (isec->flags & SEC_ALLOC) != 0
&& elf_section_type (isec) != SHT_NOTE)
some_kept = TRUE;
+ else
+ {
+ /* Since all sections, except for backend specific ones,
+ have been garbage collected, call mark_hook on this
+ section if any of its linked-to sections is marked. */
+ asection *linked_to_sec = elf_linked_to_section (isec);
+ for (; linked_to_sec != NULL;
+ linked_to_sec = elf_linked_to_section (linked_to_sec))
+ if (linked_to_sec->gc_mark)
+ {
+ if (!_bfd_elf_gc_mark (info, isec, mark_hook))
+ return FALSE;
+ break;
+ }
+ }
if (!debug_frag_seen
&& (isec->flags & SEC_DEBUGGING)
/* Keep debug and special sections like .comment when they are
not part of a group. Also keep section groups that contain
- just debug sections or special sections. */
+ just debug sections or special sections. NB: Sections with
+ linked-to section has been handled above. */
for (isec = ibfd->sections; isec != NULL; isec = isec->next)
{
if ((isec->flags & SEC_GROUP) != 0)
_bfd_elf_gc_mark_debug_special_section_group (isec);
else if (((isec->flags & SEC_DEBUGGING) != 0
|| (isec->flags & (SEC_ALLOC | SEC_LOAD | SEC_RELOC)) == 0)
- && elf_next_in_group (isec) == NULL)
+ && elf_next_in_group (isec) == NULL
+ && elf_linked_to_section (isec) == NULL)
isec->gc_mark = 1;
if (isec->gc_mark && (isec->flags & SEC_DEBUGGING) != 0)
has_kept_debug_info = TRUE;
. {* Early in the link process, map_head and map_tail are used to build
. a list of input sections attached to an output section. Later,
. output sections use these fields for a list of bfd_link_order
-. structs. *}
+. structs. The linked_to_symbol_name field is for ELF assembler
+. internal use. *}
. union {
. struct bfd_link_order *link_order;
. struct bfd_section *s;
+. const char *linked_to_symbol_name;
. } map_head, map_tail;
.} asection;
.
+2020-02-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR gas/25381
+ * config/obj-elf.c (get_section): Also check
+ linked_to_symbol_name.
+ (obj_elf_change_section): Also set map_head.linked_to_symbol_name.
+ (obj_elf_parse_section_letters): Handle the 'o' flag.
+ (build_group_lists): Renamed to ...
+ (build_additional_section_info): This. Set elf_linked_to_section
+ from map_head.linked_to_symbol_name.
+ (elf_adjust_symtab): Updated.
+ * config/obj-elf.h (elf_section_match): Add linked_to_symbol_name.
+ * doc/as.texi: Document the 'o' flag.
+ * testsuite/gas/elf/elf.exp: Run PR gas/25381 tests.
+ * testsuite/gas/elf/section18.d: New file.
+ * testsuite/gas/elf/section18.s: Likewise.
+ * testsuite/gas/elf/section19.d: Likewise.
+ * testsuite/gas/elf/section19.s: Likewise.
+ * testsuite/gas/elf/section20.d: Likewise.
+ * testsuite/gas/elf/section20.s: Likewise.
+ * testsuite/gas/elf/section21.d: Likewise.
+ * testsuite/gas/elf/section21.l: Likewise.
+ * testsuite/gas/elf/section21.s: Likewise.
+
2020-02-06 H.J. Lu <hongjiu.lu@intel.com>
* NEWS: Mention x86 assembler options to align branches for
struct elf_section_match *match = (struct elf_section_match *) inf;
const char *gname = match->group_name;
const char *group_name = elf_group_name (sec);
+ const char *linked_to_symbol_name
+ = sec->map_head.linked_to_symbol_name;
unsigned int info = elf_section_data (sec)->this_hdr.sh_info;
return (info == match->info
&& (group_name == gname
|| (group_name != NULL
&& gname != NULL
- && strcmp (group_name, gname) == 0)));
+ && strcmp (group_name, gname) == 0))
+ && (linked_to_symbol_name == match->linked_to_symbol_name
+ || (linked_to_symbol_name != NULL
+ && match->linked_to_symbol_name != NULL
+ && strcmp (linked_to_symbol_name,
+ match->linked_to_symbol_name) == 0)));
}
/* Handle the .section pseudo-op. This code supports two different
sec->section_id = match_p->section_id;
flags |= match_p->flags;
+ /* Set the linked-to symbol name. */
+ sec->map_head.linked_to_symbol_name
+ = match_p->linked_to_symbol_name;
+
bfd_set_section_flags (sec, flags);
if (flags & SEC_MERGE)
sec->entsize = entsize;
case 'e':
attr |= SHF_EXCLUDE;
break;
+ case 'o':
+ attr |= SHF_LINK_ORDER;
+ break;
case 'w':
attr |= SHF_WRITE;
break;
default:
{
const char *bad_msg = _("unrecognized .section attribute:"
- " want a,e,w,x,M,S,G,T or number");
+ " want a,e,o,w,x,M,S,G,T or number");
#ifdef md_elf_section_letter
bfd_vma md_attr = md_elf_section_letter (*str, &bad_msg);
if (md_attr != (bfd_vma) -1)
attr &= ~SHF_MERGE;
}
+ if ((attr & SHF_LINK_ORDER) != 0 && *input_line_pointer == ',')
+ {
+ char c;
+ unsigned int length;
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ c = get_symbol_name (& beg);
+ (void) restore_line_pointer (c);
+ length = input_line_pointer - beg;
+ if (length)
+ match.linked_to_symbol_name = xmemdup0 (beg, length);
+ }
+
if ((attr & SHF_GROUP) != 0 && is_clone)
{
as_warn (_("? section flag ignored with G present"));
/* Called via bfd_map_over_sections. If SEC is a member of a group,
add it to a list of sections belonging to the group. INF is a
pointer to a struct group_list, which is where we store the head of
- each list. */
+ each list. If its link_to_symbol_name isn't NULL, set up its
+ linked-to section. */
static void
-build_group_lists (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf)
+build_additional_section_info (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec, void *inf)
{
struct group_list *list = (struct group_list *) inf;
const char *group_name = elf_group_name (sec);
unsigned int *elem_idx;
unsigned int *idx_ptr;
+ if (sec->map_head.linked_to_symbol_name)
+ {
+ symbolS *linked_to_sym;
+ linked_to_sym = symbol_find (sec->map_head.linked_to_symbol_name);
+ if (!linked_to_sym || !S_IS_DEFINED (linked_to_sym))
+ as_bad (_("undefined linked-to symbol `%s' on section `%s'"),
+ sec->map_head.linked_to_symbol_name,
+ bfd_section_name (sec));
+ else
+ elf_linked_to_section (sec) = S_GET_SEGMENT (linked_to_sym);
+ }
+
if (group_name == NULL)
return;
groups.num_group = 0;
groups.head = NULL;
groups.indexes = hash_new ();
- bfd_map_over_sections (stdoutput, build_group_lists, &groups);
+ bfd_map_over_sections (stdoutput, build_additional_section_info,
+ &groups);
/* Make the SHT_GROUP sections that describe each section group. We
can't set up the section contents here yet, because elf section
struct elf_section_match
{
const char *group_name;
+ const char *linked_to_symbol_name;
unsigned int info;
unsigned int section_id;
flagword flags;
section is a GNU_MBIND section
@item e
section is excluded from executable and shared library.
+@item o
+section references a symbol defined in another section (the linked-to
+section) in the same file.
@item w
section is writable
@item x
@code{"def"} will be merged with @code{"abcdef"}; A reference to the first
@code{"def"} will be changed to a reference to @code{"abcdef"+3}.
+If @var{flags} contains the @code{o} flag, then the @var{type} argument
+must be present along with an additional field like this:
+
+@smallexample
+.section @var{name},"@var{flags}"o,@@@var{type},@var{SymbolName}
+@end smallexample
+
+The @var{SymbolName} field specifies the symbol name which the section
+references.
+
+Note: If both the @var{M} and @var{o} flags are present, then the fields
+for the Merge flag should come first, like this:
+
+@smallexample
+.section @var{name},"@var{flags}"Mo,@@@var{type},@var{entsize},@var{SymbolName}
+@end smallexample
+
If @var{flags} contains the @code{G} symbol then the @var{type} argument must
be present along with an additional field like this:
.section @var{name} , "@var{flags}"MG, @@@var{type}, @var{entsize}, @var{GroupName}[, @var{linkage}]
@end smallexample
+If both @code{o} flag and @code{G} flag are present, then the
+@var{SymbolName} field for @code{o} comes first, like this:
+
+@smallexample
+.section @var{name},"@var{flags}"oG,@@@var{type},@var{SymbolName},@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
run_dump_test "section16a"
run_dump_test "section16b"
run_dump_test "section17"
+ run_dump_test "section18"
+ run_dump_test "section19"
+ run_dump_test "section20"
+ run_dump_test "section21"
run_dump_test "dwarf2-1" $dump_opts
run_dump_test "dwarf2-2" $dump_opts
run_dump_test "dwarf2-3" $dump_opts
--- /dev/null
+#readelf: -SW
+#name: linked-to section 1
+
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WAL +.*
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WAL +.*
+#pass
--- /dev/null
+ .text
+foo:
+ .section __patchable_function_entries,"awo",%progbits,foo
+ .dc.a .LPFE1
+ .text
+.LPFE1:
+ .byte 0
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE2
+ .text
+bar:
+.LPFE2:
+ .byte 0
--- /dev/null
+#readelf: -SW
+#name: linked-to section 2
+
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WAL +.*
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WAL +.*
+#pass
--- /dev/null
+ .section .text,"ax",%progbits,unique,20
+foo:
+ .section __patchable_function_entries,"awo",%progbits,foo,unique,2
+ .dc.a .LPFE1
+ .section .text,"ax",%progbits,unique,20
+.LPFE1:
+ .byte 0
+ .section __patchable_function_entries,"awo",%progbits,bar,unique,102
+ .dc.a .LPFE2
+ .section .text,"ax",%progbits,unique,2
+bar:
+.LPFE2:
+ .byte 0
--- /dev/null
+#readelf: -SWg
+#name: linked-to section 3
+
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WALG +.*
+#...
+ +\[ *[0-9]+\] +__patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+[248] +00 +WALG +.*
+#...
+COMDAT group section \[[ 0-9]+\] `.group' \[foo\] contains [0-9]+ sections:
+ \[Index\] Name
+#...
+ \[[ 0-9]+\] __patchable_function_entries
+#...
+COMDAT group section \[[ 0-9]+\] `.group' \[bar\] contains [0-9]+ sections:
+#...
+ \[[ 0-9]+\] __patchable_function_entries
+#pass
--- /dev/null
+ .section .text,"axG",%progbits,foo,comdat
+foo:
+ .section __patchable_function_entries,"awoG",%progbits,foo,foo,comdat
+ .dc.a .LPFE1
+ .section .text,"axG",%progbits,foo,comdat
+.LPFE1:
+ .byte 0
+ .section __patchable_function_entries,"awoG",%progbits,bar,bar,comdat,unique,4
+ .dc.a .LPFE2
+ .section .text,"axG",%progbits,bar,comdat,unique,24
+bar:
+.LPFE2:
+ .byte 0
--- /dev/null
+#name: incorrect linked-to symbols
+#error_output: section21.l
--- /dev/null
+[^:]*: Assembler messages:
+[^:]*:11: Error: junk at end of line, first unrecognized character is `1'
+#...
+[^:]*: Error: undefined linked-to symbol `bar' on section `__patchable_function_entries'
+[^:]*: Error: undefined linked-to symbol `foo' on section `__patchable_function_entries'
--- /dev/null
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE1
+ .text
+.LPFE1:
+ .byte 0
+ .section __patchable_function_entries,"awo",%progbits,foo
+ .dc.a .LPFE2
+ .text
+.LPFE2:
+ .dc.a foo
+ .section __patchable_function_entries,"awo",%progbits,1foo
+ .dc.a .LPFE3
+ .text
+.LPFE3:
+ .byte 0
-2020-02-07 H.J. Lu <hongjiu.lu@intel.com>
+2020-02-06 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/24526
+ PR ld/25021
+ PR ld/25490
+ * testsuite/ld-elf/elf.exp: Run PR ld/25490 tests.
+ * testsuite/ld-elf/pr24526.d: New file.
+ * testsuite/ld-elf/pr24526.s: Likewise.
+ * testsuite/ld-elf/pr25021.d: Likewise.
+ * testsuite/ld-elf/pr25021.s: Likewise.
+ * testsuite/ld-elf/pr25490-2-16.rd: Likewise.
+ * testsuite/ld-elf/pr25490-2-32.rd: Likewise.
+ * testsuite/ld-elf/pr25490-2-64.rd: Likewise.
+ * testsuite/ld-elf/pr25490-2.s: Likewise.
+ * testsuite/ld-elf/pr25490-3-16.rd: Likewise.
+ * testsuite/ld-elf/pr25490-3-32.rd: Likewise.
+ * testsuite/ld-elf/pr25490-3-64.rd: Likewise.
+ * testsuite/ld-elf/pr25490-3.s: Likewise.
+ * testsuite/ld-elf/pr25490-4-16.rd: Likewise.
+ * testsuite/ld-elf/pr25490-4-32.rd: Likewise.
+ * testsuite/ld-elf/pr25490-4-64.rd: Likewise.
+ * testsuite/ld-elf/pr25490-4.s: Likewise.
+ * testsuite/ld-elf/pr25490-5-16.rd: Likewise.
+ * testsuite/ld-elf/pr25490-5-32.rd: Likewise.
+ * testsuite/ld-elf/pr25490-5-64.rd: Likewise.
+ * testsuite/ld-elf/pr25490-5.s: Likewise.
+ * testsuite/ld-elf/pr25490-6-16.rd: Likewise.
+ * testsuite/ld-elf/pr25490-6-32.rd: Likewise.
+ * testsuite/ld-elf/pr25490-6-64.rd: Likewise.
+ * testsuite/ld-elf/pr25490-6.s: Likewise.
+
+2020-02-06 H.J. Lu <hongjiu.lu@intel.com>
* testsuite/lib/ld-lib.exp (check_gc_sections_available): Mark
z80 as not supported.
if [is_elf64 tmpdir/symbol3w.a] {
set ASFLAGS "$ASFLAGS --defsym ALIGN=3"
set pr23900_1_exp "pr23900-1-64.rd"
+ set pr25490_2_exp "pr25490-2-64.rd"
+ set pr25490_3_exp "pr25490-3-64.rd"
+ set pr25490_4_exp "pr25490-4-64.rd"
+ set pr25490_5_exp "pr25490-5-64.rd"
+ set pr25490_6_exp "pr25490-6-64.rd"
} else {
set ASFLAGS "$ASFLAGS --defsym ALIGN=2"
set pr23900_1_exp "pr23900-1-32.rd"
+ if { [istarget avr-*-*]
+ || [istarget h8300-*-*]
+ || [istarget ip2k-*-*]
+ || [istarget m68hc11-*]
+ || [istarget "xc16x-*"]
+ || [istarget "z80-*-*"] } {
+ set pr25490_2_exp "pr25490-2-16.rd"
+ set pr25490_3_exp "pr25490-3-16.rd"
+ set pr25490_4_exp "pr25490-4-16.rd"
+ set pr25490_5_exp "pr25490-5-16.rd"
+ set pr25490_6_exp "pr25490-6-16.rd"
+ } else {
+ set pr25490_2_exp "pr25490-2-32.rd"
+ set pr25490_3_exp "pr25490-3-32.rd"
+ set pr25490_4_exp "pr25490-4-32.rd"
+ set pr25490_5_exp "pr25490-5-32.rd"
+ set pr25490_6_exp "pr25490-6-32.rd"
+ }
}
]
}
+if [check_gc_sections_available] {
+ run_ld_link_tests [list \
+ [list "__patchable_function_entries section 2" \
+ "--gc-sections -e _start" \
+ "" \
+ "" \
+ {pr25490-2.s} \
+ [list [list "readelf" {-SW} $pr25490_2_exp]] \
+ "pr25490-2.exe"] \
+ [list "__patchable_function_entries section 3" \
+ "--gc-sections -e _start" \
+ "" \
+ "" \
+ {pr25490-3.s} \
+ [list [list "readelf" {-SW} $pr25490_3_exp]] \
+ "pr25490-3.exe"] \
+ [list "__patchable_function_entries section 4" \
+ "--gc-sections -e _start" \
+ "" \
+ "" \
+ {pr25490-4.s} \
+ [list [list "readelf" {-SW} $pr25490_4_exp]] \
+ "pr25490-4.exe"] \
+ [list "__patchable_function_entries section 5" \
+ "--gc-sections -e _start" \
+ "" \
+ "" \
+ {pr25490-5.s} \
+ [list [list "readelf" {-SW} $pr25490_5_exp]] \
+ "pr25490-5.exe"] \
+ [list "__patchable_function_entries section 6" \
+ "--gc-sections -e _start" \
+ "" \
+ "" \
+ {pr25490-6.s} \
+ [list [list "readelf" {-SW} $pr25490_6_exp]] \
+ "pr25490-6.exe"] \
+ ]
+}
+
set LDFLAGS $old_ldflags
set ASFLAGS $old_asflags
--- /dev/null
+#ld: --gc-sections -e _start
+#target: [check_gc_sections_available]
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] \.bar +PROGBITS +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +00 +AL .*
+#...
+ +\[ *[0-9]+\] \.zed +PROGBITS +[0-9a-f]+ +[0-9a-f]+ [0-9a-f]+ +00 +AL .*
+#pass
--- /dev/null
+ .text
+ .globl _start
+_start:
+ .byte 0
+ .section .note,"",%note
+ .dc.a .foo
+
+ .section .foo,"a"
+ .dc.a 0
+ .section .bar,"ao",%progbits,.foo
+ .dc.a 0
+ .section .zed,"ao",%progbits,.foo
+ .dc.a 0
--- /dev/null
+#ld: --gc-sections -e _start
+#target: [check_gc_sections_available]
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] \.stack_sizes +PROGBITS +0+ +[0-9a-f]+ 0+1 +00 +L +[0-9] .*
+#pass
--- /dev/null
+ .section .text.live,"ax",%progbits
+ .globl live
+live:
+ .byte 0
+
+ .section .stack_sizes,"o",%progbits,.text.live,unique,0
+ .byte 1
+
+ .section .text.dead,"ax",%progbits
+ .globl dead
+dead:
+ .byte 1
+
+ .section .stack_sizes,"o",%progbits,.text.dead,unique,1
+ .byte 2
+
+ .section .text.main,"ax",%progbits
+ .globl _start
+_start:
+ .byte 0
+ .section .note,"",%note
+ .dc.a live
--- /dev/null
+#source: pr25490-2.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+2 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-2.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+4 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-2.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+8 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+ .text
+ .globl _start
+ .type _start, %function
+_start:
+ .section __patchable_function_entries,"awo",%progbits,_start
+ .dc.a .LPFE1
+ .text
+.LPFE1:
+ .byte 0
--- /dev/null
+#source: pr25490-3.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+2 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-3.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+4 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-3.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+8 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+ .section .text.bar,"ax",%progbits
+ .globl bar
+ .type bar, %function
+bar:
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE1
+ .section .text.bar,"ax",%progbits
+.LPFE1:
+ .byte 0
+ .section .text._start,"ax",%progbits
+ .globl _start
+ .type _start, %function
+_start:
+ .section __patchable_function_entries,"awo",%progbits,_start
+ .dc.a .LPFE2
+ .section .text._start,"ax",%progbits
+.LPFE2:
+ .byte 0
--- /dev/null
+#source: pr25490-4.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+4 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-4.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+8 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-4.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+10 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+ .section .text.bar,"ax",%progbits
+ .globl bar
+ .type bar, %function
+bar:
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE1
+ .section .text.bar,"ax",%progbits
+.LPFE1:
+ .byte 0
+ .section .text._start,"ax",%progbits
+ .globl _start
+ .type _start, %function
+_start:
+ .section __patchable_function_entries,"awo",%progbits,_start
+ .dc.a .LPFE2
+ .section .text._start,"ax",%progbits
+.LPFE2:
+ .byte 0
+ .section .note,"",%note
+ .dc.a bar
--- /dev/null
+#source: pr25490-5.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+4 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-5.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+8 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-5.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+10 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+ .text
+ .type bar, %function
+bar:
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE1
+ .text
+.LPFE1:
+ .byte 0
+ .text
+ .globl _start
+ .type _start, %function
+_start:
+ .section __patchable_function_entries,"awo",%progbits,_start
+ .dc.a .LPFE2
+ .text
+.LPFE2:
+ .byte 0
--- /dev/null
+#source: pr25490-6.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+6 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-6.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+c +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+#source: pr25490-6.s
+#ld: --gc-sections -e _start
+#readelf: -SW
+
+#...
+ +\[ *[0-9]+\] __patchable_function_entries +PROGBITS +[0-9a-f]+ +[0-9a-f]+ +0+18 +00 +WAL +[0-9] +0 +[1248]
+#pass
--- /dev/null
+ .section .text,"axG",%progbits,bar,comdat
+ .globl bar
+ .type bar, %function
+bar:
+ .section __patchable_function_entries,"awo",%progbits,bar
+ .dc.a .LPFE1
+ .section .text,"axG",%progbits,bar,comdat
+.LPFE1:
+ .byte 0
+ .section .text,"axG",%progbits,foo,comdat
+ .globl foo
+ .type foo, %function
+foo:
+ .section __patchable_function_entries,"awo",%progbits,foo,unique,0
+ .dc.a .LPFE2
+ .section .text,"axG",%progbits,foo,comdat
+.LPFE2:
+ .byte 0
+ .section .text,"axG",%progbits,_start,comdat,unique,1
+ .globl _start
+ .type _start, %function
+_start:
+ .section __patchable_function_entries,"awoG",%progbits,_start,_start,comdat,unique,3
+ .dc.a .LPFE3
+ .section .text,"axG",%progbits,_start,comdat,unique,1
+.LPFE3:
+ .byte 0
+ .section .note,"",%note
+ .dc.a foo
+ .dc.a bar
projects / binutils-gdb.git / commitdiff