+2017-04-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * elf.c (get_program_header_size): Add a GNU_MBIND segment for
+ each GNU_MBIND section and align GNU_MBIND section to page size.
+ (_bfd_elf_map_sections_to_segments): Create a GNU_MBIND
+ segment for each GNU_MBIND section.
+ (_bfd_elf_init_private_section_data): Copy sh_info from input
+ for GNU_MBIND section.
+
2017-04-03 Palmer Dabbelt <palmer@dabbelt.com>
* elfnn-riscv.c (GP_NAME): Delete.
}
}
- /* Let the backend count up any program headers it might need. */
bed = get_elf_backend_data (abfd);
- if (bed->elf_backend_additional_program_headers)
+
+ if ((abfd->flags & D_PAGED) != 0)
+ {
+ /* Add a PT_GNU_MBIND segment for each mbind section. */
+ unsigned int page_align_power = bfd_log2 (bed->commonpagesize);
+ for (s = abfd->sections; s != NULL; s = s->next)
+ if (elf_section_flags (s) & SHF_GNU_MBIND)
+ {
+ if (elf_section_data (s)->this_hdr.sh_info
+ > PT_GNU_MBIND_NUM)
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B: GNU_MBIN section `%A' has invalid sh_info field: %d"),
+ abfd, s, elf_section_data (s)->this_hdr.sh_info);
+ continue;
+ }
+ /* Align mbind section to page size. */
+ if (s->alignment_power < page_align_power)
+ s->alignment_power = page_align_power;
+ segs ++;
+ }
+ }
+
+ /* Let the backend count up any program headers it might need. */
+ if (bed->elf_backend_additional_program_headers)
{
int a;
bfd_boolean writable;
int tls_count = 0;
asection *first_tls = NULL;
+ asection *first_mbind = NULL;
asection *dynsec, *eh_frame_hdr;
bfd_size_type amt;
bfd_vma addr_mask, wrap_to = 0;
first_tls = s;
tls_count++;
}
+ if (first_mbind == NULL
+ && (elf_section_flags (s) & SHF_GNU_MBIND) != 0)
+ first_mbind = s;
}
/* If there are any SHF_TLS output sections, add PT_TLS segment. */
pm = &m->next;
}
+ if (first_mbind && (abfd->flags & D_PAGED) != 0)
+ for (s = first_mbind; s != NULL; s = s->next)
+ if ((elf_section_flags (s) & SHF_GNU_MBIND) != 0
+ && (elf_section_data (s)->this_hdr.sh_info
+ <= PT_GNU_MBIND_NUM))
+ {
+ /* Mandated PF_R. */
+ unsigned long p_flags = PF_R;
+ if ((s->flags & SEC_READONLY) == 0)
+ p_flags |= PF_W;
+ if ((s->flags & SEC_CODE) != 0)
+ p_flags |= PF_X;
+
+ amt = sizeof (struct elf_segment_map) + sizeof (asection *);
+ m = bfd_zalloc (abfd, amt);
+ if (m == NULL)
+ goto error_return;
+ m->next = NULL;
+ m->p_type = (PT_GNU_MBIND_LO
+ + elf_section_data (s)->this_hdr.sh_info);
+ m->count = 1;
+ m->p_flags_valid = 1;
+ m->sections[0] = s;
+ m->p_flags = p_flags;
+
+ *pm = m;
+ pm = &m->next;
+ }
+
/* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME
segment. */
eh_frame_hdr = elf_eh_frame_hdr (abfd);
elf_section_flags (osec) |= (elf_section_flags (isec)
& (SHF_MASKOS | SHF_MASKPROC));
+ /* Copy sh_info from input for mbind section. */
+ if (elf_section_flags (isec) & SHF_GNU_MBIND)
+ elf_section_data (osec)->this_hdr.sh_info
+ = elf_section_data (isec)->this_hdr.sh_info;
+
/* Set things up for objcopy and relocatable link. The output
SHT_GROUP section will have its elf_next_in_group pointing back
to the input group members. Ignore linker created group section.
+2017-04-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * NEWS: Mention support for ELF SHF_GNU_MBIND and
+ PT_GNU_MBIND_XXX.
+ * readelf.c (get_segment_type): Handle PT_GNU_MBIND_XXX.
+ (get_elf_section_flags): Handle SHF_GNU_MBIND.
+ (process_section_headers): Likewise.
+ * testsuite/binutils-all/mbind1.s: New file.
+ * testsuite/binutils-all/objcopy.exp: Run readelf test on
+ mbind1.s.
+
2017-04-03 Nick Clifton <nickc@redhat.com>
PR binutils/21345
-*- text -*-
+* Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
+
* Add support for the wasm32 ELF conversion of the WebAssembly file format.
* Add --inlines option to objdump, which extends the --line-numbers option
case PT_GNU_RELRO: return "GNU_RELRO";
default:
- if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC))
+ if (p_type >= PT_GNU_MBIND_LO && p_type <= PT_GNU_MBIND_HI)
+ {
+ sprintf (buff, "GNU_MBIND+%#lx",
+ p_type - PT_GNU_MBIND_LO);
+ }
+ else if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC))
{
const char * result;
/* ARM specific. */
/* 21 */ { STRING_COMMA_LEN ("ENTRYSECT") },
/* 22 */ { STRING_COMMA_LEN ("ARM_PURECODE") },
- /* 23 */ { STRING_COMMA_LEN ("COMDEF") }
+ /* 23 */ { STRING_COMMA_LEN ("COMDEF") },
+ /* GNU specific. */
+ /* 24 */ { STRING_COMMA_LEN ("GNU_MBIND") },
};
if (do_section_details)
case SHF_TLS: sindex = 9; break;
case SHF_EXCLUDE: sindex = 18; break;
case SHF_COMPRESSED: sindex = 20; break;
+ case SHF_GNU_MBIND: sindex = 24; break;
default:
sindex = -1;
case SHF_TLS: *p = 'T'; break;
case SHF_EXCLUDE: *p = 'E'; break;
case SHF_COMPRESSED: *p = 'C'; break;
+ case SHF_GNU_MBIND: *p = 'D'; break;
default:
if ((elf_header.e_machine == EM_X86_64
if (section->sh_info < 1 || section->sh_info >= elf_header.e_shnum)
warn (_("[%2u]: Expected link to another section in info field"), i);
}
- else if (section->sh_type < SHT_LOOS && section->sh_info != 0)
+ else if (section->sh_type < SHT_LOOS
+ && (section->sh_flags & SHF_GNU_MBIND) == 0
+ && section->sh_info != 0)
warn (_("[%2u]: Unexpected value (%u) in info field.\n"),
i, section->sh_info);
break;
--- /dev/null
+ .section .mbind.data,"adw",%progbits
+ .byte 1
+
+ .section .mbind.data,"adw",%progbits,0x3
+ .byte 2
+
+ .section .mbind.text,"adx",%progbits
+ .byte 3
+
+ .section .mbind.text,"adx",%progbits,0x3
+ .byte 4
+
+ .section .mbind.bss,"adw",%nobits
+ .zero 5
+
+ .section .mbind.bss,"adw",%nobits,0x3
+ .zero 6
+
+ .section .mbind.rodata,"adG",%progbits,.foo_group,comdat,0x2
+ .byte 7
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat
+ .byte 8
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat,0x3
+ .byte 9
+
+ # Check that .pushsection works as well.
+ .pushsection .mbind.text,"adGx",%progbits,.foo_group,comdat,0x3
+ .byte 10
+
+ .popsection
+ .byte 11
objcopy_test_readelf "ELF group" group-2.s
objcopy_test_readelf "ELF group" group-3.s
objcopy_test_readelf "ELF group" group-4.s
+ objcopy_test_readelf "GNU_MBIND section" mbind1.s
run_dump_test "group-5"
run_dump_test "group-6"
run_dump_test "copy-1"
+2017-04-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * NEWS: Mention support for ELF SHF_GNU_MBIND.
+ * config/obj-elf.c (section_match): New.
+ (get_section): Match both sh_info and group name.
+ (obj_elf_change_section): Add argument for sh_info. Pass both
+ sh_info and group name to get_section. Issue an error for
+ SHF_GNU_MBIND section without SHF_ALLOC. Set sh_info.
+ (obj_elf_parse_section_letters): Set SHF_GNU_MBIND for 'd'.
+ (obj_elf_section): Support SHF_GNU_MBIND section info.
+ * config/obj-elf.h (obj_elf_change_section): Add argument for
+ sh_info.
+ * config/tc-arm.c (start_unwind_section): Pass 0 as sh_info to
+ obj_elf_change_section.
+ * config/tc-ia64.c (obj_elf_vms_common): Likewise.
+ * config/tc-microblaze.c (microblaze_s_data): Likewise.
+ (microblaze_s_sdata): Likewise.
+ (microblaze_s_rdata): Likewise.
+ (microblaze_s_bss): Likewise.
+ * config/tc-mips.c (s_change_section): Likewise.
+ * config/tc-msp430.c (msp430_profiler): Likewise.
+ * config/tc-rx.c (parse_rx_section): Likewise.
+ * config/tc-tic6x.c (tic6x_start_unwind_section): Likewise.
+ * doc/as.texinfo: Document 'd' for SHF_GNU_MBIND.
+ * testsuite/gas/elf/elf.exp: Run section12a, section12b and
+ section13.
+ * testsuite/gas/elf/section10.d: Updated.
+ * testsuite/gas/elf/section10.s: Likewise.
+ * testsuite/gas/elf/section12.s: New file.
+ * testsuite/gas/elf/section12a.d: Likewise.
+ * testsuite/gas/elf/section12b.d: Likewise.
+ * testsuite/gas/elf/section13.l: Likewise.
+ * testsuite/gas/elf/section13.d: Likewise.
+ * testsuite/gas/elf/section13.s: Likewise.
+
2017-04-03 Palmer Dabbelt <palmer@dabbelt.com>
* config/tc-riscv.c (riscv_clear_subsets): Cast argument to free to
-*- text -*-
+* Add support for ELF SHF_GNU_MBIND.
+
* Add support for the WebAssembly file format and wasm32 ELF conversion.
* PowerPC gas now checks that the correct register class is used in
static struct section_stack *section_stack;
+/* Match both section group name and the sh_info field. */
+struct section_match
+{
+ const char *group_name;
+ unsigned int info;
+};
+
static bfd_boolean
get_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *inf)
{
- const char *gname = (const char *) inf;
+ struct section_match *match = (struct section_match *) inf;
+ const char *gname = match->group_name;
const char *group_name = elf_group_name (sec);
+ unsigned int info = elf_section_data (sec)->this_hdr.sh_info;
- return (group_name == gname
- || (group_name != NULL
- && gname != NULL
- && strcmp (group_name, gname) == 0));
+ return (info == match->info
+ && (group_name == gname
+ || (group_name != NULL
+ && gname != NULL
+ && strcmp (group_name, gname) == 0)));
}
/* Handle the .section pseudo-op. This code supports two different
void
obj_elf_change_section (const char *name,
unsigned int type,
+ unsigned int info,
bfd_vma attr,
int entsize,
const char *group_name,
flagword flags;
const struct elf_backend_data *bed;
const struct bfd_elf_special_section *ssect;
+ struct section_match match;
#ifdef md_flush_pending_output
md_flush_pending_output ();
previous_section = now_seg;
previous_subsection = now_subseg;
+ match.group_name = group_name;
+ match.info = info;
old_sec = bfd_get_section_by_name_if (stdoutput, name, get_section,
- (void *) group_name);
+ (void *) &match);
if (old_sec)
{
sec = old_sec;
attr |= ssect->attr;
}
+ if ((attr & (SHF_ALLOC | SHF_GNU_MBIND)) == SHF_GNU_MBIND)
+ as_fatal (_("SHF_ALLOC isn't set for GNU_MBIND section: %s"), name);
+
/* Convert ELF type and flags to BFD flags. */
flags = (SEC_RELOC
| ((attr & SHF_WRITE) ? 0 : SEC_READONLY)
type = bfd_elf_get_default_section_type (flags);
elf_section_type (sec) = type;
elf_section_flags (sec) = attr;
+ elf_section_data (sec)->this_hdr.sh_info = info;
/* Prevent SEC_HAS_CONTENTS from being inadvertently set. */
if (type == SHT_NOBITS)
case 'T':
attr |= SHF_TLS;
break;
+ case 'd':
+ attr |= SHF_GNU_MBIND;
+ break;
case '?':
*is_clone = TRUE;
break;
int entsize;
int linkonce;
subsegT new_subsection = -1;
+ unsigned int info = 0;
#ifndef TC_I370
if (flag_mri)
linkonce = (now_seg->flags & SEC_LINK_ONCE) != 0;
}
}
+
+ if ((attr & SHF_GNU_MBIND) != 0 && *input_line_pointer == ',')
+ {
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ if (ISDIGIT (* input_line_pointer))
+ {
+ char *t = input_line_pointer;
+ info = strtoul (input_line_pointer,
+ &input_line_pointer, 0);
+ if (info == (unsigned int) -1)
+ {
+ as_warn (_("unsupported mbind section info: %s"), t);
+ info = 0;
+ }
+ }
+ }
}
else
{
done:
demand_empty_rest_of_line ();
- obj_elf_change_section (name, type, attr, entsize, group_name, linkonce, push);
+ obj_elf_change_section (name, type, info, attr, entsize, group_name,
+ linkonce, push);
if (push && new_subsection != -1)
subseg_set (now_seg, new_subsection);
extern void obj_elf_data (int);
extern void obj_elf_text (int);
extern void obj_elf_change_section
- (const char *, unsigned int, bfd_vma, int, const char *, int, int);
+ (const char *, unsigned int, unsigned int, bfd_vma, int, const char *,
+ int, int);
extern struct fix *obj_elf_vtable_inherit (int);
extern struct fix *obj_elf_vtable_entry (int);
extern bfd_boolean obj_elf_seen_attribute
linkonce = 1;
}
- obj_elf_change_section (sec_name, type, flags, 0, group_name, linkonce, 0);
+ obj_elf_change_section (sec_name, type, 0, flags, 0, group_name,
+ linkonce, 0);
/* Set the section link for index tables. */
if (idx)
demand_empty_rest_of_line ();
obj_elf_change_section
- (sec_name, SHT_NOBITS,
+ (sec_name, SHT_NOBITS, 0,
SHF_ALLOC | SHF_WRITE | SHF_IA_64_VMS_OVERLAID | SHF_IA_64_VMS_GLOBAL,
0, NULL, 1, 0);
microblaze_s_data (int ignore ATTRIBUTE_UNUSED)
{
#ifdef OBJ_ELF
- obj_elf_change_section (".data", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0);
+ obj_elf_change_section (".data", SHT_PROGBITS, 0, SHF_ALLOC+SHF_WRITE,
+ 0, 0, 0, 0);
#else
s_data (ignore);
#endif
microblaze_s_sdata (int ignore ATTRIBUTE_UNUSED)
{
#ifdef OBJ_ELF
- obj_elf_change_section (".sdata", SHT_PROGBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0);
+ obj_elf_change_section (".sdata", SHT_PROGBITS, 0, SHF_ALLOC+SHF_WRITE,
+ 0, 0, 0, 0);
#else
s_data (ignore);
#endif
if (localvar == 0)
{
/* rodata. */
- obj_elf_change_section (".rodata", SHT_PROGBITS, SHF_ALLOC, 0, 0, 0, 0);
+ obj_elf_change_section (".rodata", SHT_PROGBITS, 0, SHF_ALLOC,
+ 0, 0, 0, 0);
if (rodata_segment == 0)
rodata_segment = subseg_new (".rodata", 0);
}
else
{
/* 1 .sdata2. */
- obj_elf_change_section (".sdata2", SHT_PROGBITS, SHF_ALLOC, 0, 0, 0, 0);
+ obj_elf_change_section (".sdata2", SHT_PROGBITS, 0, SHF_ALLOC,
+ 0, 0, 0, 0);
}
#else
s_data (ignore);
{
#ifdef OBJ_ELF
if (localvar == 0) /* bss. */
- obj_elf_change_section (".bss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0);
+ obj_elf_change_section (".bss", SHT_NOBITS, 0, SHF_ALLOC+SHF_WRITE,
+ 0, 0, 0, 0);
else if (localvar == 1)
{
/* sbss. */
- obj_elf_change_section (".sbss", SHT_NOBITS, SHF_ALLOC+SHF_WRITE, 0, 0, 0, 0);
+ obj_elf_change_section (".sbss", SHT_NOBITS, 0, SHF_ALLOC+SHF_WRITE,
+ 0, 0, 0, 0);
if (sbss_segment == 0)
sbss_segment = subseg_new (".sbss", 0);
}
if (section_type == SHT_MIPS_DWARF)
section_type = SHT_PROGBITS;
- obj_elf_change_section (section_name, section_type, section_flag,
+ obj_elf_change_section (section_name, section_type, 0, section_flag,
section_entry_size, 0, 0, 0);
if (now_seg->name != section_name)
subseg = now_subseg;
/* Now go to .profiler section. */
- obj_elf_change_section (".profiler", SHT_PROGBITS, 0, 0, 0, 0, 0);
+ obj_elf_change_section (".profiler", SHT_PROGBITS, 0, 0, 0, 0, 0, 0);
/* Save flags. */
emit_expr (& exp, 2);
else
type = SHT_NOBITS;
- obj_elf_change_section (name, type, attr, 0, NULL, FALSE, FALSE);
+ obj_elf_change_section (name, type, 0, attr, 0, NULL, FALSE, FALSE);
}
else /* Try not to redefine a section, especially B_1. */
{
| ((flags & SEC_STRINGS) ? SHF_STRINGS : 0)
| ((flags & SEC_THREAD_LOCAL) ? SHF_TLS : 0);
- obj_elf_change_section (name, type, attr, 0, NULL, FALSE, FALSE);
+ obj_elf_change_section (name, type, 0, attr, 0, NULL, FALSE, FALSE);
}
bfd_set_section_alignment (stdoutput, now_seg, align);
linkonce = 1;
}
- obj_elf_change_section (sec_name, type, flags, 0, group_name, linkonce, 0);
+ obj_elf_change_section (sec_name, type, 0, flags, 0, group_name,
+ linkonce, 0);
/* Set the section link for index tables. */
if (idx)
@table @code
@item a
section is allocatable
+@item d
+section is a GNU_MBIND section
@item e
section is excluded from executable and shared library.
@item w
run_dump_test "section9"
run_dump_test "section10"
run_dump_test "section11"
+ run_dump_test "section12a"
+ run_dump_test "section12b"
+ run_dump_test "section13"
run_dump_test "dwarf2-1"
run_dump_test "dwarf2-2"
run_dump_test "dwarf2-3"
#...
[ ]*\[.*\][ ]+sec3
[ ]*PROGBITS.*
-[ ]*\[.*ffff030\]: MERGE, STRINGS,.* EXCLUDE, OS \(.*ff00000\), PROC \(.*[347]0000000\), UNKNOWN \(0+0ff000\)
+[ ]*\[.*fefff030\]: MERGE, STRINGS,.* EXCLUDE, OS \(.*ef00000\), PROC \(.*[347]0000000\), UNKNOWN \(0+0ff000\)
#...
[ ]*\[.*\][ ]+sec4
[ ]*LOOS\+0x11[ ].*
#...
[ ]*\[.*\][ ]+sec5
[ ]*LOUSER\+0x9[ ].*
-[ ]*\[.*fff0000\]:.* EXCLUDE, OS \(.*ff00000\), PROC \(.*[347]0000000\), UNKNOWN \(.*f0000\)
+[ ]*\[.*feff0000\]:.* EXCLUDE, OS \(.*ef00000\), PROC \(.*[347]0000000\), UNKNOWN \(.*f0000\)
[ ]*\[.*\][ ]+.data.foo
[ ]*LOUSER\+0x7f000000[ ].*
[ ]*\[0+003\]: WRITE, ALLOC
.word 2
# Make sure that specifying further arguments to .sections is still supported
- .section sec3, "0xfffff000MS", %progbits, 32
+ .section sec3, "0xfefff000MS", %progbits, 32
.word 3
# Make sure that extra flags can be set for well known sections as well.
.word 5
# Test both together, with a quoted type value.
- .section sec5, "0xffff0000", "0x80000009"
+ .section sec5, "0xfeff0000", "0x80000009"
.word 6
# Test that declaring an extended version of a known special section works.
--- /dev/null
+ .section .mbind.data,"adw",%progbits
+ .byte 1
+
+ .section .mbind.data,"adw",%progbits,0x3
+ .byte 2
+
+ .section .mbind.text,"adx",%progbits
+ .byte 3
+
+ .section .mbind.text,"adx",%progbits,0x3
+ .byte 4
+
+ .section .mbind.bss,"adw",%nobits
+ .zero 5
+
+ .section .mbind.bss,"adw",%nobits,0x3
+ .zero 6
+
+ .section .mbind.rodata,"adG",%progbits,.foo_group,comdat,0x2
+ .byte 7
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat
+ .byte 8
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat,0x3
+ .byte 9
+
+ # Check that .pushsection works as well.
+ .pushsection .mbind.text,"adGx",%progbits,.foo_group,comdat,0x3
+ .byte 10
+
+ .popsection
+ .byte 11
--- /dev/null
+#source: section12.s
+#as: --no-pad-sections
+#readelf: -Sg --wide
+#name: mbind sections
+# The RX port annoyingly reorders the sections so that they do not match the sequence expected below.
+#skip: rx-*-*
+
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 WAD 0 0 1
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 WAD 0 3 1
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 AXD 0 0 1
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 AXD 0 3 1
+#...
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+0+0 0+[0-9a-f]+ 0+5 00 WAD 0 0 1
+#...
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+0+0 0+[0-9a-f]+ 0+6 00 WAD 0 3 1
+#...
+ \[[ 0-9]+\] \.mbind\.rodata[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 AGD 0 2 1
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 WAGD 0 0 1
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+2 00 WAGD 0 3 1
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+0+0 0+[0-9a-f]+ 0+1 00 AXGD 0 3 1
+#...
+COMDAT group section \[ 1\] `\.group' \[\.foo_group\] contains 4 sections:
+[ ]+\[Index\][ ]+Name
+[ ]+\[[ 0-9]+][ ]+\.mbind\.rodata
+[ ]+\[[ 0-9]+][ ]+\.mbind\.data
+[ ]+\[[ 0-9]+][ ]+\.mbind\.data
+[ ]+\[[ 0-9]+][ ]+\.mbind\.text
+#pass
--- /dev/null
+#source: section12.s
+#as: --no-pad-sections
+#objdump: -s
+#name: mbind section contents
+# The RX port annoyingly reorders the sections so that they do not match the sequence expected below.
+#skip: rx-*-*
+
+#...
+Contents of section .mbind.data:
+ 0000 01 .
+#...
+Contents of section .mbind.data:
+ 0000 02 .
+#...
+Contents of section .mbind.text:
+ 0000 03 .
+#...
+Contents of section .mbind.text:
+ 0000 04 .
+#...
+Contents of section .mbind.rodata:
+ 0000 07 .
+#...
+Contents of section .mbind.data:
+ 0000 08 .
+#...
+Contents of section .mbind.data:
+ 0000 090b ..
+#...
+Contents of section .mbind.text:
+ 0000 0a .
+#pass
--- /dev/null
+#name: mbind sections without SHF_ALLOC
+#error-output: section13.l
--- /dev/null
+[^:]*: Assembler messages:
+[^:]*:1: Fatal error: SHF_ALLOC isn't set for GNU_MBIND section: .mbind.data
--- /dev/null
+ .section .mbind.data,"dw",@nobits
+ .byte 0
+2017-04-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * elf/common.h (PT_GNU_MBIND_NUM): New.
+ (PT_GNU_MBIND_LO): Likewise.
+ (PT_GNU_MBIND_HI): Likewise.
+ (SHF_GNU_MBIND): Likewise.
+
2017-04-03 Palmer Dabbelt <palmer@dabbelt.com>
* elf/riscv.h (RISCV_GP_SYMBOL): New define.
#define PT_GNU_STACK (PT_LOOS + 0x474e551) /* Stack flags */
#define PT_GNU_RELRO (PT_LOOS + 0x474e552) /* Read-only after relocation */
+/* Mbind segments */
+#define PT_GNU_MBIND_NUM 4096
+#define PT_GNU_MBIND_LO (PT_LOOS + 0x474e555)
+#define PT_GNU_MBIND_HI (PT_GNU_MBIND_LO + PT_GNU_MBIND_NUM - 1)
+
/* Program segment permissions, in program header p_flags field. */
#define PF_X (1 << 0) /* Segment is executable */
are not to be further
relocated. */
+#define SHF_GNU_MBIND 0x01000000 /* Mbind section. */
+
/* Compression types. */
#define ELFCOMPRESS_ZLIB 1 /* Compressed with zlib. */
#define ELFCOMPRESS_LOOS 0x60000000 /* OS-specific semantics, lo */
+2017-04-04 H.J. Lu <hongjiu.lu@intel.com>
+
+ * NEWS: Mention support for ELF SHF_GNU_MBIND and
+ PT_GNU_MBIND_XXX.
+ * emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Place
+ input GNU_MBIND sections with the same type, attributes and
+ sh_info field into a single output GNU_MBIND section.
+ * testsuite/ld-elf/elf.exp: Run mbind2a and mbind2b.
+ * testsuite/ld-elf/mbind1.s: New file.
+ * testsuite/ld-elf/mbind1a.d: Likewise.
+ * testsuite/ld-elf/mbind1b.d: Likewise.
+ * testsuite/ld-elf/mbind1c.d: Likewise.
+ * testsuite/ld-elf/mbind2a.s: Likewise.
+ * testsuite/ld-elf/mbind2b.c: Likewise.
+
2017-04-03 H.J. Lu <hongjiu.lu@intel.com>
* NEWS: Mention support for ELF GNU program properties.
-*- text -*-
+* Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
+
* Add support for ELF GNU program properties.
* Add support for the Texas Instruments PRU processor.
}
}
+ if (!bfd_link_relocatable (&link_info)
+ && (s->flags & SEC_ALLOC) != 0
+ && (elf_section_flags (s) & SHF_GNU_MBIND) != 0)
+ {
+ /* Find the output mbind section with the same type, attributes
+ and sh_info field. */
+ for (os = &lang_output_section_statement.head->output_section_statement;
+ os != NULL;
+ os = os->next)
+ if (os->bfd_section != NULL
+ && !bfd_is_abs_section (os->bfd_section)
+ && (elf_section_flags (os->bfd_section) & SHF_GNU_MBIND) != 0
+ && ((s->flags & (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_READONLY
+ | SEC_CODE))
+ == (os->bfd_section->flags & (SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_READONLY
+ | SEC_CODE)))
+ && (elf_section_data (os->bfd_section)->this_hdr.sh_info
+ == elf_section_data (s)->this_hdr.sh_info))
+ {
+ lang_add_section (&os->children, s, NULL, os);
+ return os;
+ }
+
+ /* Create the output mbind section with the ".mbind." prefix
+ in section name. */
+ if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
+ secname = ".mbind.bss";
+ else if ((s->flags & SEC_READONLY) == 0)
+ secname = ".mbind.data";
+ else if ((s->flags & SEC_CODE) == 0)
+ secname = ".mbind.rodata";
+ else
+ secname = ".mbind.text";
+ }
+
/* Look through the script to see where to place this section. */
if (constraint == 0)
for (os = lang_output_section_find (secname);
/* SEC_EXCLUDE is cleared when doing a relocatable link. But
we can't merge 2 input sections with the same name when only
- one of them has SHF_EXCLUDE. */
+ one of them has SHF_EXCLUDE. Don't merge 2 sections with
+ different sh_info. */
if (os->bfd_section != NULL
+ && (elf_section_data (os->bfd_section)->this_hdr.sh_info
+ == elf_section_data (s)->this_hdr.sh_info)
&& (os->bfd_section->flags == 0
|| ((!bfd_link_relocatable (&link_info)
|| (iself && (((elf_section_flags (s)
|| [istarget *-*-nacl*]
|| [istarget *-*-gnu*] } {
run_ld_link_exec_tests $array_tests_pie $xfails
+
+ run_ld_link_exec_tests [list \
+ [list \
+ "Run mbind2a" \
+ "$NOPIE_LDFLAGS -Wl,-z,common-page-size=0x4000" \
+ "" \
+ { mbind2a.s mbind2b.c } \
+ "mbind2a" \
+ "pass.out" \
+ "-O2 -I../bfd" \
+ ] \
+ [list \
+ "Run mbind2b" \
+ "-static -Wl,-z,common-page-size=0x4000" \
+ "" \
+ { mbind2a.s mbind2b.c } \
+ "mbind2b" \
+ "pass.out" \
+ "-O2 -I../bfd" \
+ ] \
+ ]
}
# <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>
--- /dev/null
+ .text
+ .global start /* Used by SH targets. */
+start:
+ .global _start
+_start:
+ .global __start
+__start:
+ .global main /* Used by HPPA targets. */
+main:
+ .dc.a 0
+ .section .mbind.data,"adw",%progbits
+ .byte 1
+
+ .section .mbind.data,"adw",%progbits,0x3
+ .byte 2
+
+ .section .mbind.text,"adx",%progbits
+ .byte 3
+
+ .section .mbind.text,"adx",%progbits,0x3
+ .byte 4
+
+ .section .mbind.bss,"adw",%nobits
+ .zero 5
+
+ .section .mbind.bss,"adw",%nobits,0x3
+ .zero 6
+
+ .section .mbind.rodata,"adG",%progbits,.foo_group,comdat,0x2
+ .byte 7
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat
+ .byte 8
+
+ .section .mbind.data,"adGw",%progbits,.foo_group,comdat,0x3
+ .byte 9
+
+ # Check that .pushsection works as well.
+ .pushsection .mbind.text,"adGx",%progbits,.foo_group,comdat,0x3
+ .byte 10
+
+ .popsection
+ .byte 11
--- /dev/null
+#source: mbind1.s
+#ld: -z common-page-size=0x1000 -z max-page-size=0x200000
+#readelf: -S -l --wide
+#target: *-*-linux* *-*-gnu*
+
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 3 4096
+ \[[ 0-9]+\] \.mbind\.rodata[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AD 0 2 4096
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+Program Headers:
+ Type.*
+#...
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x200000
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x200000
+#...
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x2[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+#...
+ Section to Segment mapping:
+ Segment Sections...
+#...
+ [0-9]+ .*.text .mbind.text .mbind.text .mbind.rodata .*
+ [0-9]+ .*.mbind.data .mbind.data.* .mbind.bss .mbind.bss .*
+#...
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.rodata +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.bss +
+ [0-9]+ .mbind.bss +
+#pass
--- /dev/null
+#source: mbind1.s
+#ld: -shared -z common-page-size=0x1000 -z max-page-size=0x200000
+#readelf: -S -l --wide
+#target: *-*-linux* *-*-gnu*
+
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 3 4096
+ \[[ 0-9]+\] \.mbind\.rodata[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AD 0 2 4096
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+Program Headers:
+ Type.*
+#...
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x200000
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x200000
+#...
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x2[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+#...
+ Section to Segment mapping:
+ Segment Sections...
+#...
+ [0-9]+ .*.text .mbind.text .mbind.text .mbind.rodata .*
+ [0-9]+ .*.mbind.data .mbind.data.* .mbind.bss .mbind.bss .*
+#...
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.rodata +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.bss +
+ [0-9]+ .mbind.bss +
+#pass
--- /dev/null
+#source: mbind1.s
+#ld: -pie -z common-page-size=0x1000 -z max-page-size=0x200000
+#readelf: -S -l --wide
+#target: *-*-linux* *-*-gnu*
+
+#...
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.text[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AXD 0 3 4096
+ \[[ 0-9]+\] \.mbind\.rodata[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 AD 0 2 4096
+#...
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.data[ ]+PROGBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 0 4096
+ \[[ 0-9]+\] \.mbind\.bss[ ]+NOBITS[ ]+[0-9a-f]+ [0-9a-f]+ [0-9a-f]+ 00 WAD 0 3 4096
+#...
+Program Headers:
+ Type.*
+#...
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x200000
+ LOAD[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x200000
+#...
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R E 0x1000
+ GNU_MBIND\+0x2[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ R 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+ GNU_MBIND\+0x3[ \t]+0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ 0x[0-9a-f]+ RW 0x1000
+#...
+ Section to Segment mapping:
+ Segment Sections...
+#...
+ [0-9]+ .*.text .mbind.text .mbind.text .mbind.rodata .*
+ [0-9]+ .*.mbind.data .mbind.data.* .mbind.bss .mbind.bss .*
+#...
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.text +
+ [0-9]+ .mbind.rodata +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.data +
+ [0-9]+ .mbind.bss +
+ [0-9]+ .mbind.bss +
+#pass
--- /dev/null
+/* Place bss_in_mbind0 in .mbind.bss section with sh_info == 0. */
+ .globl bss_in_mbind0
+ .section .mbind.bss,"adw",@nobits,0
+ .type bss_in_mbind0, @object
+ .size bss_in_mbind0, 1
+bss_in_mbind0:
+ .zero 1
+
+/* Place data_in_mbind3 in .mbind.data section with sh_info == 3. */
+ .globl data_in_mbind3
+ .section .mbind.data,"adw",@progbits,0x3
+ .type data_in_mbind3, @object
+ .size data_in_mbind3, 1
+data_in_mbind3:
+ .byte 0
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <bfd_stdint.h>
+
+extern char bss_in_mbind0;
+extern char data_in_mbind3;
+
+int
+main (void)
+{
+ if (((intptr_t) &bss_in_mbind0 & (0x4000 - 1)) != 0)
+ abort ();
+ if (((intptr_t) &data_in_mbind3 & (0x4000 - 1)) != 0)
+ abort ();
+ printf ("PASS\n");
+ return 0;
+}
projects / thirdparty / binutils-gdb.git / commitdiff
