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-rw-r--r--gold/testsuite/x86_64_ie_to_le.s2
-rwxr-xr-xgold/testsuite/x86_64_ie_to_le.sh2
-rw-r--r--gold/x86_64.cc47
3 files changed, 47 insertions, 4 deletions
diff --git a/gold/testsuite/x86_64_ie_to_le.s b/gold/testsuite/x86_64_ie_to_le.s
index c575206..bd0643d 100644
--- a/gold/testsuite/x86_64_ie_to_le.s
+++ b/gold/testsuite/x86_64_ie_to_le.s
@@ -7,6 +7,8 @@ _start:
movq foo@gottpoff(%rip), %rax
addq foo@gottpoff(%rip), %r16
movq foo@gottpoff(%rip), %r20
+ addq %r30, foo@gottpoff(%rip), %r8
+ addq foo@gottpoff(%rip), %rax, %r20
.size _start, .-_start
.section .tdata,"awT",@progbits
.align 4
diff --git a/gold/testsuite/x86_64_ie_to_le.sh b/gold/testsuite/x86_64_ie_to_le.sh
index 9d2e082..5308712 100755
--- a/gold/testsuite/x86_64_ie_to_le.sh
+++ b/gold/testsuite/x86_64_ie_to_le.sh
@@ -27,3 +27,5 @@ grep -q "add[ \t]\+\$0x[a-f0-9]\+,%r12" x86_64_ie_to_le.stdout
grep -q "mov[ \t]\+\$0x[a-f0-9]\+,%rax" x86_64_ie_to_le.stdout
grep -q "add[ \t]\+\$0x[a-f0-9]\+,%r16" x86_64_ie_to_le.stdout
grep -q "mov[ \t]\+\$0x[a-f0-9]\+,%r20" x86_64_ie_to_le.stdout
+grep -q "add[ \t]\+\$0x[a-f0-9]\+,%r30,%r8" x86_64_ie_to_le.stdout
+grep -q "add[ \t]\+\$0x[a-f0-9]\+,%rax,%r20" x86_64_ie_to_le.stdout
diff --git a/gold/x86_64.cc b/gold/x86_64.cc
index 58e191a..f77430b 100644
--- a/gold/x86_64.cc
+++ b/gold/x86_64.cc
@@ -2920,6 +2920,11 @@ Target_x86_64<size>::optimize_tls_reloc(bool is_final, int r_type,
// Another Local-Dynamic reloc.
return tls::TLSOPT_TO_LE;
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
+ if (r_offset <= 6 || *(reloc_view - 6) != 0x62)
+ return tls::TLSOPT_NONE;
+ goto handle_gottpoff;
+
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
if (r_offset <= 4 || *(reloc_view - 4) != 0xd5)
return tls::TLSOPT_NONE;
@@ -2929,6 +2934,7 @@ Target_x86_64<size>::optimize_tls_reloc(bool is_final, int r_type,
// from the GOT. If we know that we are linking against the
// local symbol, we can switch to Local-Exec, which links the
// thread offset into the instruction.
+handle_gottpoff:
if (is_final)
return tls::TLSOPT_TO_LE;
return tls::TLSOPT_NONE;
@@ -2997,6 +3003,7 @@ Target_x86_64<size>::Scan::get_reference_flags(unsigned int r_type)
case elfcpp::R_X86_64_DTPOFF64:
case elfcpp::R_X86_64_GOTTPOFF: // Initial-exec
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
case elfcpp::R_X86_64_TPOFF32: // Local-exec
return Symbol::TLS_REF;
@@ -3362,6 +3369,7 @@ need_got:
// These are initial tls relocs, which are expected when linking
case elfcpp::R_X86_64_CODE_4_GOTPC32_TLSDESC:
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
{
section_size_type stype;
reloc_view = object->section_contents(data_shndx, &stype, true);
@@ -3464,6 +3472,7 @@ need_got:
case elfcpp::R_X86_64_GOTTPOFF: // Initial-exec
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE)
{
@@ -3902,6 +3911,7 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
// These are initial tls relocs, which are expected for global()
case elfcpp::R_X86_64_CODE_4_GOTPC32_TLSDESC:
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
{
section_size_type stype;
reloc_view = object->section_contents(data_shndx, &stype, true);
@@ -3920,7 +3930,8 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
// when building an executable.
const bool is_final = (gsym->final_value_is_known() ||
((r_type == elfcpp::R_X86_64_GOTTPOFF ||
- r_type == elfcpp::R_X86_64_CODE_4_GOTTPOFF) &&
+ r_type == elfcpp::R_X86_64_CODE_4_GOTTPOFF||
+ r_type == elfcpp::R_X86_64_CODE_6_GOTTPOFF) &&
gsym->is_undefined() &&
parameters->options().output_is_executable()));
size_t r_offset = reloc.get_r_offset();
@@ -4006,6 +4017,7 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
case elfcpp::R_X86_64_GOTTPOFF: // Initial-exec
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
layout->set_has_static_tls();
if (optimized_type == tls::TLSOPT_NONE)
{
@@ -4608,6 +4620,7 @@ Target_x86_64<size>::Relocate::relocate(
case elfcpp::R_X86_64_DTPOFF64:
case elfcpp::R_X86_64_GOTTPOFF: // Initial-exec
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
case elfcpp::R_X86_64_TPOFF32: // Local-exec
this->relocate_tls(relinfo, target, relnum, rela, r_type, gsym, psymval,
view, address, view_size);
@@ -4894,6 +4907,7 @@ Target_x86_64<size>::Relocate::relocate_tls(
case elfcpp::R_X86_64_GOTTPOFF: // Initial-exec
case elfcpp::R_X86_64_CODE_4_GOTTPOFF:
+ case elfcpp::R_X86_64_CODE_6_GOTTPOFF:
if (gsym != NULL
&& gsym->is_undefined()
&& parameters->options().output_is_executable())
@@ -5308,11 +5322,19 @@ Target_x86_64<size>::Relocate::tls_ie_to_le(
// movq foo@gottpoff(%rip),%reg ==> movq $YY,%reg
// addq foo@gottpoff(%rip),%reg ==> addq $YY,%reg
+ // addq %reg1,foo@gottpoff(%rip),%reg2 ==> addq $YY,%reg1,%reg2
+ // addq foo@gottpoff(%rip),%reg1,%reg2 ==> addq $YY,%reg1,%reg2
- tls::check_range(relinfo, relnum, rela.get_r_offset(), view_size, -3);
+ int off1;
+ if (r_type == elfcpp::R_X86_64_CODE_6_GOTTPOFF)
+ off1 = -5;
+ else
+ off1 = -3;
+
+ tls::check_range(relinfo, relnum, rela.get_r_offset(), view_size, off1);
tls::check_range(relinfo, relnum, rela.get_r_offset(), view_size, 4);
- unsigned char op1 = view[-3];
+ unsigned char op1 = view[off1];
unsigned char op2 = view[-2];
unsigned char op3 = view[-1];
unsigned char reg = op3 >> 3;
@@ -5350,7 +5372,7 @@ Target_x86_64<size>::Relocate::tls_ie_to_le(
view[-1] = 0x80 | reg | (reg << 3);
}
}
- else
+ else if (r_type == elfcpp::R_X86_64_CODE_4_GOTTPOFF)
{
if (op2 == 0x8b)
op2 = 0xc7;
@@ -5362,6 +5384,23 @@ Target_x86_64<size>::Relocate::tls_ie_to_le(
view[-2] = op2;
view[-1] = 0xc0 | reg;
}
+ else
+ {
+ unsigned char updated_op1 = op1;
+
+ // Set the R bits since they is inverted.
+ updated_op1 |= 1 << 7 | 1 << 4;
+
+ // Update the B bits from the R bits.
+ if ((op1 & (1 << 7)) == 0)
+ updated_op1 &= ~(1 << 5);
+ if ((op1 & (1 << 4)) == 0)
+ updated_op1 |= 1 << 3;
+
+ view[-5] = updated_op1;
+ view[-2] = 0x81;
+ view[-1] = 0xc0 | reg;
+ }
if (tls_segment != NULL)
value -= tls_segment->memsz();
generated by cgit v1.1 at 2024-11-18 10:27:03 +0000