From aa88073d38aacbf1ad9f6759d27ec618fcb8e603 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 30 Jan 2025 08:48:45 +0800
Subject: [PATCH v3] x86-64: Estimate output section layout before sizing
dynamic sections
When sizing dynamic sections, elf_x86_64_scan_relocs converts GOTPCREL
relocations to R_X86_64_PC32, R_X86_64_32S or R_X86_64_32 for local
symbols. But at that time, since the output section layout is unknown,
the local symbol values can't be determined. Later linker issues an
error if the converted relocation overflows when resolving relocations
against these local symbols. Update the x86-64 ELF linker to estimate
output section layout before sizing dynamic sections and use the
preliminary output section layout info to skip the GOTPCREL relocation
conversion if the converted relocation overflows.
bfd/
PR ld/32591
* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Add an input
section argument. Use the lowest-addressed section to estimate
the __ehdr_start symbol value. Don't convert relocation if the
converted relocation will overflow.
ld/
PR ld/32591
* emultempl/elf-x86.em (elf_x86_64_before_allocation):
New. Defined for x86-64.
(LDEMUL_BEFORE_ALLOCATION): Likewise.
* testsuite/ld-x86-64/pr19609-2a.d: Don't fail.
* testsuite/ld-x86-64/pr19609-2b.d: Likewise.
* testsuite/ld-x86-64/pr19609-4a.d: Likewise.
* testsuite/ld-x86-64/pr19609-5d.d: Likewise.
* testsuite/ld-x86-64/pr19609-7a.d: Likewise.
* testsuite/ld-x86-64/pr19609-7c.d: Likewise.
* testsuite/ld-x86-64/pr32591-1.s: New file.
* testsuite/ld-x86-64/pr32591-1a-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-1a.d: Likewise.
* testsuite/ld-x86-64/pr32591-1a.t: Likewise.
* testsuite/ld-x86-64/pr32591-1b-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-1b.d: Likewise.
* testsuite/ld-x86-64/pr32591-1b.t: Likewise.
* testsuite/ld-x86-64/pr32591-1c-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-1c.d: Likewise.
* testsuite/ld-x86-64/pr32591-1c.t: Likewise.
* testsuite/ld-x86-64/pr32591-1d-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-1d.d: Likewise.
* testsuite/ld-x86-64/pr32591-1d.t: Likewise.
* testsuite/ld-x86-64/pr32591-2.s: Likewise.
* testsuite/ld-x86-64/pr32591-2-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-2.d: Likewise.
* testsuite/ld-x86-64/pr32591-2.t: Likewise.
* testsuite/ld-x86-64/pr32591-3.s: Likewise.
* testsuite/ld-x86-64/pr32591-3-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-3.d: Likewise.
* testsuite/ld-x86-64/pr32591-3.t: Likewise.
* testsuite/ld-x86-64/pr32591-4.s: Likewise.
* testsuite/ld-x86-64/pr32591-4-x32.d: Likewise.
* testsuite/ld-x86-64/pr32591-4.d: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run PR ld/32591 tests.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
bfd/elf64-x86-64.c | 89 +++++++++++++++++++++++--
ld/emultempl/elf-x86.em | 41 ++++++++++++
ld/testsuite/ld-x86-64/pr19609-2a.d | 11 ++-
ld/testsuite/ld-x86-64/pr19609-2b.d | 11 ++-
ld/testsuite/ld-x86-64/pr19609-4a.d | 11 ++-
ld/testsuite/ld-x86-64/pr19609-5d.d | 10 ++-
ld/testsuite/ld-x86-64/pr19609-7a.d | 13 +++-
ld/testsuite/ld-x86-64/pr19609-7c.d | 13 +++-
ld/testsuite/ld-x86-64/pr32591-1.s | 24 +++++++
ld/testsuite/ld-x86-64/pr32591-1a-x32.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1a.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1a.t | 7 ++
ld/testsuite/ld-x86-64/pr32591-1b-x32.d | 27 ++++++++
ld/testsuite/ld-x86-64/pr32591-1b.d | 27 ++++++++
ld/testsuite/ld-x86-64/pr32591-1b.t | 7 ++
ld/testsuite/ld-x86-64/pr32591-1c-x32.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1c.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1c.t | 6 ++
ld/testsuite/ld-x86-64/pr32591-1d-x32.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1d.d | 22 ++++++
ld/testsuite/ld-x86-64/pr32591-1d.t | 7 ++
ld/testsuite/ld-x86-64/pr32591-2-x32.d | 12 ++++
ld/testsuite/ld-x86-64/pr32591-2.d | 12 ++++
ld/testsuite/ld-x86-64/pr32591-2.s | 13 ++++
ld/testsuite/ld-x86-64/pr32591-2.t | 4 ++
ld/testsuite/ld-x86-64/pr32591-3-x32.d | 13 ++++
ld/testsuite/ld-x86-64/pr32591-3.d | 13 ++++
ld/testsuite/ld-x86-64/pr32591-3.s | 7 ++
ld/testsuite/ld-x86-64/pr32591-3.t | 5 ++
ld/testsuite/ld-x86-64/pr32591-4-x32.d | 13 ++++
ld/testsuite/ld-x86-64/pr32591-4.d | 13 ++++
ld/testsuite/ld-x86-64/pr32591-4.s | 7 ++
ld/testsuite/ld-x86-64/x86-64.exp | 14 ++++
33 files changed, 548 insertions(+), 14 deletions(-)
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1.s
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1a-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1a.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1a.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1b-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1b.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1b.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1c-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1c.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1c.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1d-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1d.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-1d.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-2-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-2.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-2.s
create mode 100644 ld/testsuite/ld-x86-64/pr32591-2.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-3-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-3.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-3.s
create mode 100644 ld/testsuite/ld-x86-64/pr32591-3.t
create mode 100644 ld/testsuite/ld-x86-64/pr32591-4-x32.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-4.d
create mode 100644 ld/testsuite/ld-x86-64/pr32591-4.s
@@ -1770,6 +1770,7 @@ static unsigned int evex_move_r_to_b (unsigned int byte1)
static bool
elf_x86_64_convert_load_reloc (bfd *abfd,
+ asection *input_section,
bfd_byte *contents,
unsigned int *r_type_p,
Elf_Internal_Rela *irel,
@@ -1793,6 +1794,10 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
unsigned int r_symndx;
bfd_vma roff = irel->r_offset;
bfd_vma abs_relocation;
+ reloc_howto_type *howto;
+ bfd_reloc_status_type r;
+ Elf_Internal_Sym *isym;
+ bfd_vma relocation;
switch (r_type)
{
@@ -1901,8 +1906,8 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
/* Get the symbol referred to by the reloc. */
if (h == NULL)
{
- Elf_Internal_Sym *isym
- = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd, r_symndx);
+ isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd,
+ r_symndx);
/* Skip relocation against undefined symbols. */
if (isym->st_shndx == SHN_UNDEF)
@@ -1932,6 +1937,9 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
R_X86_64_PC32. */
struct elf_x86_link_hash_entry *eh = elf_x86_hash_entry (h);
+ isym = NULL;
+ tsec = NULL;
+
abs_symbol = ABS_SYMBOL_P (h);
abs_relocation = h->root.u.def.value;
@@ -1991,6 +1999,22 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
/* Skip since R_X86_64_32/R_X86_64_32S may overflow. */
if (no_overflow)
return true;
+ if (h->start_stop)
+ tsec = h->root.u.def.section;
+ else if (h == htab->elf.hehdr_start)
+ {
+ /* Use the lowest-addressed section to estimate the
+ __ehdr_start symbol value. */
+ asection *sec;
+ tsec = NULL;
+ for (sec = link_info->output_bfd->sections;
+ sec != NULL;
+ sec = sec->next)
+ if ((sec->flags & SEC_LOAD) != 0
+ && (tsec == NULL || tsec->vma > sec->vma))
+ tsec = sec;
+
+ }
goto convert;
}
tsec = h->root.u.def.section;
@@ -2009,6 +2033,25 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
return true;
convert:
+ /* Compute relocation value so that it can be used later to check for
+ overflow against the converted relocation. */
+ if (h == NULL)
+ {
+ /* Make a copy of IREL so that _bfd_elf_rela_local_sym won't
+ change IREL. */
+ Elf_Internal_Rela rel = *irel;
+ relocation = _bfd_elf_rela_local_sym (link_info->output_bfd, isym,
+ &tsec, &rel);
+ /* Use the updated r_addend. */
+ raddend = rel.r_addend;
+ }
+ else if (tsec != NULL)
+ relocation = (h->root.u.def.value
+ + tsec->output_section->vma
+ + tsec->output_offset);
+ else
+ relocation = 0;
+
if (opcode == 0xff)
{
/* We have "call/jmp *foo@GOTPCREL(%rip)". */
@@ -2016,6 +2059,16 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
unsigned int disp;
bfd_vma nop_offset;
+ r_type = R_X86_64_PC32;
+
+ /* Skip if the converted relocation will overflow. */
+ howto = elf_x86_64_rtype_to_howto (abfd, r_type);
+ r = _bfd_final_link_relocate (howto, abfd, input_section,
+ contents, irel->r_offset,
+ relocation, raddend);
+ if (r == bfd_reloc_overflow)
+ return true;
+
/* Convert R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX to
R_X86_64_PC32. */
modrm = bfd_get_8 (abfd, contents + roff - 1);
@@ -2060,7 +2113,6 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
}
bfd_put_8 (abfd, nop, contents + nop_offset);
bfd_put_8 (abfd, modrm, contents + irel->r_offset - 1);
- r_type = R_X86_64_PC32;
}
else if (r_type == R_X86_64_CODE_6_GOTPCRELX && opcode != 0x8b)
{
@@ -2101,6 +2153,14 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
overflow when sign-extending imm32 to 64 bits. */
r_type = evex[1] & 0x80 ? R_X86_64_32S : R_X86_64_32;
+ /* Skip if the converted relocation will overflow. */
+ howto = elf_x86_64_rtype_to_howto (abfd, r_type);
+ r = _bfd_final_link_relocate (howto, abfd, input_section,
+ contents, irel->r_offset,
+ relocation, 0);
+ if (r == bfd_reloc_overflow)
+ return true;
+
if (abs_relocation) /* Bogus; should be abs_symbol. */
{
/* Check if R_X86_64_32S/R_X86_64_32 fits. */
@@ -2186,6 +2246,15 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
opcode = 0x8d;
r_type = R_X86_64_PC32;
+ /* Skip if the converted relocation will overflow. */
+ howto = elf_x86_64_rtype_to_howto (abfd, r_type);
+ r = _bfd_final_link_relocate (howto, abfd, input_section,
+ contents, irel->r_offset,
+ relocation,
+ raddend);
+ if (r == bfd_reloc_overflow)
+ return true;
+
/* For MOVRS move a possible REX prefix as necessary. */
if (movrs == 5)
bfd_put_8 (abfd, rex, contents + roff - 3);
@@ -2245,6 +2314,14 @@ elf_x86_64_convert_load_reloc (bfd *abfd,
r_type = rex_w ? R_X86_64_32S : R_X86_64_32;
rewrite_modrm_rex:
+ /* Skip if the converted relocation will overflow. */
+ howto = elf_x86_64_rtype_to_howto (abfd, r_type);
+ r = _bfd_final_link_relocate (howto, abfd, input_section,
+ contents, irel->r_offset,
+ relocation, 0);
+ if (r == bfd_reloc_overflow)
+ return true;
+
if (abs_relocation)
{
/* Check if R_X86_64_32S/R_X86_64_32 fits. */
@@ -2465,9 +2542,9 @@ elf_x86_64_scan_relocs (bfd *abfd, struct bfd_link_info *info,
&& (h == NULL || h->type != STT_GNU_IFUNC))
{
Elf_Internal_Rela *irel = (Elf_Internal_Rela *) rel;
- if (!elf_x86_64_convert_load_reloc (abfd, contents, &r_type,
- irel, h, &converted_reloc,
- info))
+ if (!elf_x86_64_convert_load_reloc (abfd, sec, contents,
+ &r_type, irel, h,
+ &converted_reloc, info))
goto error_return;
if (converted_reloc)
@@ -73,3 +73,44 @@ EOF
LDEMUL_BEFORE_PARSE=elf_x86_64_before_parse
;;
esac
+
+case x${OUTPUT_FORMAT} in
+ x*x86-64*)
+fragment <<EOF
+
+static void
+elf_x86_64_before_allocation (void)
+{
+ if (!bfd_link_relocatable (&link_info)
+ && is_elf_hash_table (link_info.hash)
+ && expld.phase != lang_mark_phase_enum)
+ {
+ struct elf_link_hash_table *htab = elf_hash_table (&link_info);
+ /* Run one_lang_size_sections_pass to estimate the output section
+ layout before sizing dynamic sections. */
+ expld.dataseg.phase = exp_seg_none;
+ expld.phase = lang_mark_phase_enum;
+ /* NB: Exclude linker created GOT setions when estimating output
+ section layout as sizing dynamic sections may change linker
+ created GOT sections. */
+ if (htab->sgot != NULL)
+ htab->sgot->flags |= SEC_EXCLUDE;
+ if (htab->sgotplt != NULL)
+ htab->sgotplt->flags |= SEC_EXCLUDE;
+ one_lang_size_sections_pass (NULL, false);
+ /* Restore linker created GOT setions. */
+ if (htab->sgot != NULL)
+ htab->sgot->flags &= ~SEC_EXCLUDE;
+ if (htab->sgotplt != NULL)
+ htab->sgotplt->flags &= ~SEC_EXCLUDE;
+ lang_reset_memory_regions ();
+ }
+
+ gld${EMULATION_NAME}_before_allocation ();
+}
+
+EOF
+
+LDEMUL_BEFORE_ALLOCATION=elf_x86_64_before_allocation
+ ;;
+esac
@@ -1,4 +1,13 @@
#source: pr19609-2.s
#as: --64 -mrelax-relocations=yes
#ld: -melf_x86_64 -Ttext=0x70000000 -Tdata=0xa0000000
-#error: .*failed to convert GOTPCREL relocation against 'foo'; relink with --no-relax.*
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+0+70000000 <_start>:
+[ ]*[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4} cmp -?0x[a-f0-9]+\(%rip\),%rax # .*
+#pass
@@ -1,4 +1,13 @@
#source: pr19609-2.s
#as: --x32 -mrelax-relocations=yes
#ld: -melf32_x86_64 -Ttext=0x70000000 -Tdata=0xa0000000
-#error: .*failed to convert GOTPCREL relocation against 'foo'; relink with --no-relax.*
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+70000000 <_start>:
+[ ]*[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4} cmp -?0x[a-f0-9]+\(%rip\),%rax # .*
+#pass
@@ -1,4 +1,13 @@
#source: pr19609-4.s
#as: --64 -mrelax-relocations=yes
#ld: -melf_x86_64 -Ttext=0x70000000 -Tdata=0xa0000000
-#error: .*failed to convert GOTPCREL relocation against 'foo'; relink with --no-relax.*failed to convert GOTPCREL relocation against 'foo'; relink with --no-relax.*
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+0+70000000 <_start>:
+[ ]*[a-f0-9]+: 48 8b 05 ([0-9a-f]{2} ){4} * mov [-]?0x[a-f0-9]+\(%rip\),%rax # [a-f0-9]+ <_start\+0x1000>
+[ ]*[a-f0-9]+: 4c 8b 1d ([0-9a-f]{2} ){4} * mov [-]?0x[a-f0-9]+\(%rip\),%r11 # [a-f0-9]+ <_start\+0x1000>
@@ -1,4 +1,12 @@
#source: pr19609-5.s
#as: --64 -mrelax-relocations=yes
#ld: -melf_x86_64 -Ttext=0x80000000
-#error: .*failed to convert GOTPCREL relocation against 'bar'; relink with --no-relax
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <_start>:
+[ ]+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4} * call \*-?0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <.*>
@@ -1,4 +1,13 @@
#source: pr19609-7.s
#as: --64 -mrelax-relocations=yes
-#ld: -melf_x86_64 -Ttext=0x80000000
-#error: .*failed to convert GOTPCREL relocation against 'foobar'; relink with --no-relax
+#ld: -melf_x86_64 -Ttext=0x80000000 -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <_start>:
+[ ]*[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4} * call \*-?0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_start\+0x1000>
+#pass
@@ -1,4 +1,13 @@
#source: pr19609-7.s
#as: --x32 -mrelax-relocations=yes
-#ld: -melf32_x86_64 -Ttext=0x80000000
-#error: .*failed to convert GOTPCREL relocation against 'foobar'; relink with --no-relax
+#ld: -melf32_x86_64 -Ttext=0x80000000 -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+[a-f0-9]+ <_start>:
+[ ]*[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4} * call \*-?0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_start\+0x1000>
+#pass
new file mode 100644
@@ -0,0 +1,24 @@
+.section .text.foo,"ax"
+.globl _foo
+.type _foo, @function
+_foo:
+ movl __start_data@GOTPCREL(%rip), %eax
+ addq foo_1@GOTPCREL(%rip), %rax
+ addq foo@GOTPCREL(%rip), %rax
+
+.section .text,"ax"
+.globl _start
+.type _start, @function
+_start:
+ movl __stop_data@GOTPCREL(%rip), %eax
+ movq __stop_data@GOTPCREL(%rip), %rax
+ movq __stop_data@GOTPCREL(%rip), %rax
+ movl __stop_data@GOTPCREL(%rip), %eax
+
+.section foo,"aw",@progbits
+.space 1
+foo_1:
+.space 1
+
+.section data,"aw",@progbits
+.space 13
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-1a.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+00100000 <_foo>:
+ 100000: c7 c0 00 00 20 80 mov \$0x80200000,%eax
+ 100006: 48 03 05 f3 ff 1f 00 add 0x1ffff3\(%rip\),%rax # 300000 <_start\+0x100000>
+ 10000d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+00200000 <_start>:
+ 200000: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
+ 200006: 40 c7 c0 0d 00 20 80 rex mov \$0x8020000d,%eax
+ 20000d: 40 c7 c0 0d 00 20 80 rex mov \$0x8020000d,%eax
+ 200014: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-1a.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+0000000000100000 <_foo>:
+ 100000: c7 c0 00 00 20 80 mov \$0x80200000,%eax
+ 100006: 48 03 05 f3 ff 1f 00 add 0x1ffff3\(%rip\),%rax # 300000 <_start\+0x100000>
+ 10000d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+0000000000200000 <_start>:
+ 200000: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
+ 200006: 48 8b 05 fb ff 0f 00 mov 0xffffb\(%rip\),%rax # 300008 <_start\+0x100008>
+ 20000d: 48 8b 05 f4 ff 0f 00 mov 0xffff4\(%rip\),%rax # 300008 <_start\+0x100008>
+ 200014: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
new file mode 100644
@@ -0,0 +1,7 @@
+SECTIONS {
+ .text.foo 0x100000 : { *(.text.foo) }
+ .text 0x200000 : { *(.text) }
+ .got 0x300000 : { *(.got) }
+ foo 0x7fffffff : { *(foo) }
+ data 0x80200000 : { *(data) }
+}
new file mode 100644
@@ -0,0 +1,27 @@
+#source: pr32591-1.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-1b.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+00100000 <_foo>:
+ 100000: c7 c0 00 00 20 80 mov \$0x80200000,%eax
+ 100006: 48 03 05 f3 ff 1f 00 add 0x1ffff3\(%rip\),%rax # 300000 <_start\+0x100000>
+ 10000d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+001ff000 <_start-0x1000>:
+ 1ff000: 66 2e 0f 1f 84 00 00 00 00 00 cs nopw 0x0\(%rax,%rax,1\)
+#...
+ 1ffffa: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\)
+
+00200000 <_start>:
+ 200000: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
+ 200006: 40 c7 c0 0d 00 20 80 rex mov \$0x8020000d,%eax
+ 20000d: 40 c7 c0 0d 00 20 80 rex mov \$0x8020000d,%eax
+ 200014: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
new file mode 100644
@@ -0,0 +1,27 @@
+#source: pr32591-1.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-1b.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+0000000000100000 <_foo>:
+ 100000: c7 c0 00 00 20 80 mov \$0x80200000,%eax
+ 100006: 48 03 05 f3 ff 1f 00 add 0x1ffff3\(%rip\),%rax # 300000 <_start\+0x100000>
+ 10000d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+00000000001ff000 <_start-0x1000>:
+ 1ff000: 66 2e 0f 1f 84 00 00 00 00 00 cs nopw 0x0\(%rax,%rax,1\)
+#...
+ 1ffffa: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\)
+
+0000000000200000 <_start>:
+ 200000: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
+ 200006: 48 8b 05 fb ff 0f 00 mov 0xffffb\(%rip\),%rax # 300008 <_start\+0x100008>
+ 20000d: 48 8b 05 f4 ff 0f 00 mov 0xffff4\(%rip\),%rax # 300008 <_start\+0x100008>
+ 200014: c7 c0 0d 00 20 80 mov \$0x8020000d,%eax
new file mode 100644
@@ -0,0 +1,7 @@
+SECTIONS {
+ .text.foo 0x100000 : { *(.text.foo) }
+ .text 0x1ff000 : { . = . + 0x1000 ; *(.text) }
+ .got 0x300000 : { *(.got) }
+ foo 0x7fffffff : { *(foo) }
+ data 0x80200000 : { *(data) }
+}
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-1c.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+00100000 <_foo>:
+ 100000: c7 c0 00 00 40 00 mov \$0x400000,%eax
+ 100006: 48 81 c0 0e 00 40 00 add \$0x40000e,%rax
+ 10000d: 48 81 c0 0d 00 40 00 add \$0x40000d,%rax
+
+Disassembly of section .text:
+
+00200000 <_start>:
+ 200000: c7 c0 0d 00 40 00 mov \$0x40000d,%eax
+ 200006: 40 c7 c0 0d 00 40 00 rex mov \$0x40000d,%eax
+ 20000d: 40 c7 c0 0d 00 40 00 rex mov \$0x40000d,%eax
+ 200014: c7 c0 0d 00 40 00 mov \$0x40000d,%eax
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-1c.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+0000000000100000 <_foo>:
+ 100000: c7 c0 00 00 40 00 mov \$0x400000,%eax
+ 100006: 48 81 c0 0e 00 40 00 add \$0x40000e,%rax
+ 10000d: 48 81 c0 0d 00 40 00 add \$0x40000d,%rax
+
+Disassembly of section .text:
+
+0000000000200000 <_start>:
+ 200000: c7 c0 0d 00 40 00 mov \$0x40000d,%eax
+ 200006: 48 c7 c0 0d 00 40 00 mov \$0x40000d,%rax
+ 20000d: 48 c7 c0 0d 00 40 00 mov \$0x40000d,%rax
+ 200014: c7 c0 0d 00 40 00 mov \$0x40000d,%eax
new file mode 100644
@@ -0,0 +1,6 @@
+SECTIONS {
+ .text.foo 0x100000 : { *(.text.foo) }
+ .text 0x200000 : { *(.text) }
+ .got 0x300000 : { *(.got) }
+ data 0x400000 : { *(data) }
+}
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-1d.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+00002000 <_foo>:
+ 2000: c7 c0 00 10 00 80 mov \$0x80001000,%eax
+ 2006: 48 03 05 f3 1f 00 00 add 0x1ff3\(%rip\),%rax # 4000 <_start\+0x1000>
+ 200d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+00003000 <_start>:
+ 3000: c7 c0 0d 10 00 80 mov \$0x8000100d,%eax
+ 3006: 40 c7 c0 0d 10 00 80 rex mov \$0x8000100d,%eax
+ 300d: 40 c7 c0 0d 10 00 80 rex mov \$0x8000100d,%eax
+ 3014: c7 c0 0d 10 00 80 mov \$0x8000100d,%eax
new file mode 100644
@@ -0,0 +1,22 @@
+#source: pr32591-1.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-1d.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text.foo:
+
+0000000000002000 <_foo>:
+ 2000: c7 c0 00 10 00 80 mov \$0x80001000,%eax
+ 2006: 48 03 05 f3 1f 00 00 add 0x1ff3\(%rip\),%rax # 4000 <_start\+0x1000>
+ 200d: 48 81 c0 ff ff ff 7f add \$0x7fffffff,%rax
+
+Disassembly of section .text:
+
+0000000000003000 <_start>:
+ 3000: c7 c0 0d 10 00 80 mov \$0x8000100d,%eax
+ 3006: 48 8b 05 fb 0f 00 00 mov 0xffb\(%rip\),%rax # 4008 <_start\+0x1008>
+ 300d: 48 8b 05 f4 0f 00 00 mov 0xff4\(%rip\),%rax # 4008 <_start\+0x1008>
+ 3014: c7 c0 0d 10 00 80 mov \$0x8000100d,%eax
new file mode 100644
@@ -0,0 +1,7 @@
+SECTIONS {
+ .text.foo 0x02000 : { *(.text.foo) }
+ .text 0x3000 : { *(.text) }
+ .got 0x4000 : { *(.got) }
+ foo 0x7fffffff : { *(foo) }
+ data 0x80001000 : { *(data) }
+}
new file mode 100644
@@ -0,0 +1,12 @@
+#source: pr32591-2.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-2.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+ffff0000 <_start>:
+ffff0000: 40 c7 c0 08 00 ff ff rex mov \$0xffff0008,%eax
new file mode 100644
@@ -0,0 +1,12 @@
+#source: pr32591-2.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-2.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+00000000ffff0000 <_start>:
+ ffff0000: 48 8b 05 09 00 00 00 mov 0x9\(%rip\),%rax # ffff0010 <__stack_chk_guard\+0x8>
new file mode 100644
@@ -0,0 +1,13 @@
+ .text
+ .p2align 4
+ .globl _start
+ .type _start, @function
+_start:
+ movq __stack_chk_guard@GOTPCREL(%rip), %rax
+ .globl __stack_chk_guard
+ .section .rodata
+ .align 8
+ .type __stack_chk_guard, @object
+__stack_chk_guard:
+ .quad -1
+ .section .note.GNU-stack,"",@progbits
new file mode 100644
@@ -0,0 +1,4 @@
+SECTIONS {
+ .text 0xffff0000 : { *(.text*) }
+ .rodata : AT(ADDR(".rodata") - 0xffff0000) { *(.rodata*) }
+}
new file mode 100644
@@ -0,0 +1,13 @@
+#source: pr32591-3.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -T pr32591-3.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+f0000000 <_start>:
+f0000000: 40 c7 c0 08 00 30 ff rex mov \$0xff300008,%eax
+f0000007: 48 03 1d f2 ff 2f 0f add 0xf2ffff2\(%rip\),%rbx # ff300000 <_start\+0xf300000>
new file mode 100644
@@ -0,0 +1,13 @@
+#source: pr32591-3.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -T pr32591-3.t -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+00000000f0000000 <_start>:
+ f0000000: 48 8b 05 f9 ff 2f 0f mov 0xf2ffff9\(%rip\),%rax # ff300000 <_start\+0xf300000>
+ f0000007: 48 03 1d f2 ff 2f 0f add 0xf2ffff2\(%rip\),%rbx # ff300000 <_start\+0xf300000>
new file mode 100644
@@ -0,0 +1,7 @@
+ .text
+ .globl _start
+ .type _start, @function
+_start:
+ movq foo@GOTPCREL(%rip), %rax
+ addq foo@GOTPCREL(%rip), %rbx
+ .size _start, .-_start
new file mode 100644
@@ -0,0 +1,5 @@
+SECTIONS {
+ .text 0xf0000000 : { *(.text) }
+ .got 0xff300000 : { *(.got) }
+ foo = .;
+}
new file mode 100644
@@ -0,0 +1,13 @@
+#source: pr32591-4.s
+#as: --x32 -mrelax-relocations=yes
+#ld: -melf32_x86_64 -Ttext-segment=0xf0000000 -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+f0001000 <_start>:
+f0001000: 40 c7 c0 00 00 00 f0 rex mov \$0xf0000000,%eax
+f0001007: 48 03 1d f2 0f 00 00 add 0xff2\(%rip\),%rbx # f0002000 <_start\+0x1000>
new file mode 100644
@@ -0,0 +1,13 @@
+#source: pr32591-4.s
+#as: --64 -mrelax-relocations=yes
+#ld: -melf_x86_64 -Ttext-segment=0xf0000000 -z max-page-size=0x1000 -z separate-code --no-rosegment
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+00000000f0001000 <_start>:
+ f0001000: 48 8b 05 f9 0f 00 00 mov 0xff9\(%rip\),%rax # f0002000 <_start\+0x1000>
+ f0001007: 48 03 1d f2 0f 00 00 add 0xff2\(%rip\),%rbx # f0002000 <_start\+0x1000>
new file mode 100644
@@ -0,0 +1,7 @@
+ .text
+ .globl _start
+ .type _start, @function
+_start:
+ movq __ehdr_start@GOTPCREL(%rip), %rax
+ addq __ehdr_start@GOTPCREL(%rip), %rbx
+ .size _start, .-_start
@@ -544,6 +544,20 @@ run_dump_test "tlsdesc4"
run_dump_test "tlsdesc5"
run_dump_test "pr32191"
run_dump_test "pr32191-x32"
+run_dump_test "pr32591-1a"
+run_dump_test "pr32591-1a-x32"
+run_dump_test "pr32591-1b"
+run_dump_test "pr32591-1b-x32"
+run_dump_test "pr32591-1c"
+run_dump_test "pr32591-1c-x32"
+run_dump_test "pr32591-1d"
+run_dump_test "pr32591-1d-x32"
+run_dump_test "pr32591-2"
+run_dump_test "pr32591-2-x32"
+run_dump_test "pr32591-3"
+run_dump_test "pr32591-3-x32"
+run_dump_test "pr32591-4"
+run_dump_test "pr32591-4-x32"
if { ![skip_sframe_tests] } {
run_dump_test "sframe-simple-1"
--
2.48.1