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-rw-r--r--sysdeps/x86/Makefile36
-rw-r--r--sysdeps/x86/cpu-features.c2
-rw-r--r--sysdeps/x86/sysdep.h23
-rw-r--r--sysdeps/x86/tst-gnu2-tls2-x86-noxsave.c2
-rw-r--r--sysdeps/x86/tst-gnu2-tls2-x86-noxsavec.c2
-rw-r--r--sysdeps/x86/tst-gnu2-tls2-x86-noxsavexsavec.c2
-rw-r--r--sysdeps/x86/tst-gnu2-tls2.c36
-rw-r--r--sysdeps/x86/tst-gnu2-tls2.h37
-rw-r--r--sysdeps/x86/tst-tls23.c22
-rw-r--r--sysdeps/x86/tst-tls23.h35
10 files changed, 173 insertions, 24 deletions
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index 01b0192..4fbd48e 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -4,7 +4,13 @@ endif
ifeq ($(subdir),elf)
sysdep_routines += get-cpuid-feature-leaf
-sysdep-dl-routines += dl-get-cpu-features
+sysdep-dl-routines += \
+ dl-get-cpu-features \
+ dl-tlsdesc \
+ tls_get_addr \
+ tlsdesc \
+# sysdep-dl-routines
+
sysdep_headers += \
bits/platform/features.h \
bits/platform/x86.h \
@@ -90,14 +96,22 @@ tst-ifunc-isa-2-ENV = GLIBC_TUNABLES=glibc.cpu.hwcaps=-SSE4_2,-AVX,-AVX2,-AVX512
tst-ifunc-isa-2-static-ENV = $(tst-ifunc-isa-2-ENV)
tst-hwcap-tunables-ARGS = -- $(host-test-program-cmd)
-CFLAGS-tst-gnu2-tls2.c += -msse
+CFLAGS-tst-gnu2-tls2.c += -msse2
CFLAGS-tst-gnu2-tls2mod0.c += -msse2 -mtune=haswell
CFLAGS-tst-gnu2-tls2mod1.c += -msse2 -mtune=haswell
CFLAGS-tst-gnu2-tls2mod2.c += -msse2 -mtune=haswell
-LDFLAGS-tst-gnu2-tls2-x86-noxsave += -Wl,-z,lazy
-LDFLAGS-tst-gnu2-tls2-x86-noxsavec += -Wl,-z,lazy
-LDFLAGS-tst-gnu2-tls2-x86-noxsavexsavec += -Wl,-z,lazy
+LDFLAGS-tst-gnu2-tls2 += -rdynamic
+LDFLAGS-tst-gnu2-tls2mod0.so += -Wl,-z,undefs
+LDFLAGS-tst-gnu2-tls2mod1.so += -Wl,-z,undefs
+LDFLAGS-tst-gnu2-tls2mod2.so += -Wl,-z,undefs
+
+CFLAGS-tst-gnu2-tls2-x86-noxsave.c += -msse2
+CFLAGS-tst-gnu2-tls2-x86-noxsavec.c += -msse2
+CFLAGS-tst-gnu2-tls2-x86-noxsavexsavec.c += -msse2
+LDFLAGS-tst-gnu2-tls2-x86-noxsave += -Wl,-z,lazy -rdynamic
+LDFLAGS-tst-gnu2-tls2-x86-noxsavec += -Wl,-z,lazy -rdynamic
+LDFLAGS-tst-gnu2-tls2-x86-noxsavexsavec += -Wl,-z,lazy -rdynamic
# Test for bug 32810: incorrect XSAVE state size if XSAVEC is disabled
# via tunable.
@@ -113,6 +127,18 @@ $(objpfx)tst-gnu2-tls2-x86-noxsavexsavec.out: \
$(objpfx)tst-gnu2-tls2mod0.so \
$(objpfx)tst-gnu2-tls2mod1.so \
$(objpfx)tst-gnu2-tls2mod2.so
+
+CFLAGS-tst-tls23.c += -msse2
+CFLAGS-tst-tls23-mod.c += -msse2 -mtune=haswell
+
+LDFLAGS-tst-tls23 += -rdynamic
+tst-tls23-mod.so-no-z-defs = yes
+
+$(objpfx)tst-tls23-mod.so: $(libsupport)
+endif
+
+ifeq ($(subdir),gmon)
+CFLAGS-mcount.c += -mgeneral-regs-only
endif
ifeq ($(subdir),math)
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index e50f1d6..b7d1506 100644
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -1256,7 +1256,7 @@ no_cpuid:
#endif
if (MINIMUM_X86_ISA_LEVEL >= AVX_X86_ISA_LEVEL
- || (GLRO(dl_x86_cpu_features).xsave_state_size != 0))
+ || cpu_features->xsave_state_size != 0)
{
if (CPU_FEATURE_USABLE_P (cpu_features, XSAVEC))
{
diff --git a/sysdeps/x86/sysdep.h b/sysdeps/x86/sysdep.h
index c3c73e7..b8e963b 100644
--- a/sysdeps/x86/sysdep.h
+++ b/sysdeps/x86/sysdep.h
@@ -183,6 +183,29 @@
#define atom_text_section .section ".text.atom", "ax"
+#ifndef DL_STACK_ALIGNMENT
+/* Due to GCC bug:
+
+ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066
+
+ __tls_get_addr may be called with 8-byte/4-byte stack alignment.
+ Although this bug has been fixed in GCC 4.9.4, 5.3 and 6, we can't
+ assume that stack will be always aligned at 16 bytes. */
+# ifdef __x86_64__
+# define DL_STACK_ALIGNMENT 8
+# define MINIMUM_ALIGNMENT 16
+# else
+# define DL_STACK_ALIGNMENT 4
+# endif
+#endif
+
+/* True if _dl_runtime_resolve/_dl_tlsdesc_dynamic should align stack for
+ STATE_SAVE or align stack to MINIMUM_ALIGNMENT bytes before calling
+ _dl_fixup/__tls_get_addr. */
+#define DL_RUNTIME_RESOLVE_REALIGN_STACK \
+ (STATE_SAVE_ALIGNMENT > DL_STACK_ALIGNMENT \
+ || MINIMUM_ALIGNMENT > DL_STACK_ALIGNMENT)
+
#endif /* __ASSEMBLER__ */
#endif /* _X86_SYSDEP_H */
diff --git a/sysdeps/x86/tst-gnu2-tls2-x86-noxsave.c b/sysdeps/x86/tst-gnu2-tls2-x86-noxsave.c
index f0024c1..963c4f3 100644
--- a/sysdeps/x86/tst-gnu2-tls2-x86-noxsave.c
+++ b/sysdeps/x86/tst-gnu2-tls2-x86-noxsave.c
@@ -1 +1 @@
-#include <elf/tst-gnu2-tls2.c>
+#include <tst-gnu2-tls2.c>
diff --git a/sysdeps/x86/tst-gnu2-tls2-x86-noxsavec.c b/sysdeps/x86/tst-gnu2-tls2-x86-noxsavec.c
index f0024c1..963c4f3 100644
--- a/sysdeps/x86/tst-gnu2-tls2-x86-noxsavec.c
+++ b/sysdeps/x86/tst-gnu2-tls2-x86-noxsavec.c
@@ -1 +1 @@
-#include <elf/tst-gnu2-tls2.c>
+#include <tst-gnu2-tls2.c>
diff --git a/sysdeps/x86/tst-gnu2-tls2-x86-noxsavexsavec.c b/sysdeps/x86/tst-gnu2-tls2-x86-noxsavexsavec.c
index f0024c1..963c4f3 100644
--- a/sysdeps/x86/tst-gnu2-tls2-x86-noxsavexsavec.c
+++ b/sysdeps/x86/tst-gnu2-tls2-x86-noxsavexsavec.c
@@ -1 +1 @@
-#include <elf/tst-gnu2-tls2.c>
+#include <tst-gnu2-tls2.c>
diff --git a/sysdeps/x86/tst-gnu2-tls2.c b/sysdeps/x86/tst-gnu2-tls2.c
index de900a4..b3195ff 100644
--- a/sysdeps/x86/tst-gnu2-tls2.c
+++ b/sysdeps/x86/tst-gnu2-tls2.c
@@ -1,20 +1,26 @@
-#ifndef __x86_64__
-#include <sys/platform/x86.h>
+#ifndef TEST_AMX
+# ifndef __x86_64__
+# include <sys/platform/x86.h>
-#define IS_SUPPORTED() CPU_FEATURE_ACTIVE (SSE2)
-#endif
+# define IS_SUPPORTED() CPU_FEATURE_ACTIVE (SSE2)
+# endif
-/* Clear XMM0...XMM7 */
-#define PREPARE_MALLOC() \
-{ \
- asm volatile ("xorps %%xmm0, %%xmm0" : : : "xmm0" ); \
- asm volatile ("xorps %%xmm1, %%xmm1" : : : "xmm1" ); \
- asm volatile ("xorps %%xmm2, %%xmm2" : : : "xmm2" ); \
- asm volatile ("xorps %%xmm3, %%xmm3" : : : "xmm3" ); \
- asm volatile ("xorps %%xmm4, %%xmm4" : : : "xmm4" ); \
- asm volatile ("xorps %%xmm5, %%xmm5" : : : "xmm5" ); \
- asm volatile ("xorps %%xmm6, %%xmm6" : : : "xmm6" ); \
- asm volatile ("xorps %%xmm7, %%xmm7" : : : "xmm7" ); \
+/* Set XMM0...XMM7 to all 1s. */
+# define PREPARE_MALLOC() \
+{ \
+ asm volatile ("pcmpeqd %%xmm0, %%xmm0" : : : "xmm0" ); \
+ asm volatile ("pcmpeqd %%xmm1, %%xmm1" : : : "xmm1" ); \
+ asm volatile ("pcmpeqd %%xmm2, %%xmm2" : : : "xmm2" ); \
+ asm volatile ("pcmpeqd %%xmm3, %%xmm3" : : : "xmm3" ); \
+ asm volatile ("pcmpeqd %%xmm4, %%xmm4" : : : "xmm4" ); \
+ asm volatile ("pcmpeqd %%xmm5, %%xmm5" : : : "xmm5" ); \
+ asm volatile ("pcmpeqd %%xmm6, %%xmm6" : : : "xmm6" ); \
+ asm volatile ("pcmpeqd %%xmm7, %%xmm7" : : : "xmm7" ); \
}
+#endif
#include <elf/tst-gnu2-tls2.c>
+
+#ifndef TEST_AMX
+v2di v1, v2, v3;
+#endif
diff --git a/sysdeps/x86/tst-gnu2-tls2.h b/sysdeps/x86/tst-gnu2-tls2.h
new file mode 100644
index 0000000..fdbb565
--- /dev/null
+++ b/sysdeps/x86/tst-gnu2-tls2.h
@@ -0,0 +1,37 @@
+/* Test TLSDESC relocation, x86 version.
+ Copyright (C) 2025 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef TEST_AMX
+# include <support/check.h>
+
+typedef long long v2di __attribute__((vector_size(16)));
+extern v2di v1, v2, v3;
+
+# define BEFORE_TLSDESC_CALL() \
+ v1 = __extension__(v2di){0, 0}; \
+ v2 = __extension__(v2di){0, 0};
+
+# define AFTER_TLSDESC_CALL() \
+ v3 = __extension__(v2di){0, 0}; \
+ asm volatile ("" : "+x" (v3)); \
+ union { v2di x; long long a[2]; } u; \
+ u.x = v3; \
+ TEST_VERIFY_EXIT (u.a[0] == 0 && u.a[1] == 0);
+#endif
+
+#include <elf/tst-gnu2-tls2.h>
diff --git a/sysdeps/x86/tst-tls23.c b/sysdeps/x86/tst-tls23.c
new file mode 100644
index 0000000..6130d91
--- /dev/null
+++ b/sysdeps/x86/tst-tls23.c
@@ -0,0 +1,22 @@
+#ifndef __x86_64__
+#include <sys/platform/x86.h>
+
+#define IS_SUPPORTED() CPU_FEATURE_ACTIVE (SSE2)
+#endif
+
+/* Set XMM0...XMM7 to all 1s. */
+#define PREPARE_MALLOC() \
+{ \
+ asm volatile ("pcmpeqd %%xmm0, %%xmm0" : : : "xmm0" ); \
+ asm volatile ("pcmpeqd %%xmm1, %%xmm1" : : : "xmm1" ); \
+ asm volatile ("pcmpeqd %%xmm2, %%xmm2" : : : "xmm2" ); \
+ asm volatile ("pcmpeqd %%xmm3, %%xmm3" : : : "xmm3" ); \
+ asm volatile ("pcmpeqd %%xmm4, %%xmm4" : : : "xmm4" ); \
+ asm volatile ("pcmpeqd %%xmm5, %%xmm5" : : : "xmm5" ); \
+ asm volatile ("pcmpeqd %%xmm6, %%xmm6" : : : "xmm6" ); \
+ asm volatile ("pcmpeqd %%xmm7, %%xmm7" : : : "xmm7" ); \
+}
+
+#include <elf/tst-tls23.c>
+
+v2di v1, v2, v3;
diff --git a/sysdeps/x86/tst-tls23.h b/sysdeps/x86/tst-tls23.h
new file mode 100644
index 0000000..21cee4c
--- /dev/null
+++ b/sysdeps/x86/tst-tls23.h
@@ -0,0 +1,35 @@
+/* Test that __tls_get_addr preserves XMM registers.
+ Copyright (C) 2025 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+
+typedef long long v2di __attribute__((vector_size(16)));
+extern v2di v1, v2, v3;
+
+#define BEFORE_TLS_CALL() \
+ v1 = __extension__(v2di){0, 0}; \
+ v2 = __extension__(v2di){0, 0};
+
+#define AFTER_TLS_CALL() \
+ v3 = __extension__(v2di){0, 0}; \
+ asm volatile ("" : "+x" (v3)); \
+ union { v2di x; long long a[2]; } u; \
+ u.x = v3; \
+ TEST_VERIFY_EXIT (u.a[0] == 0 && u.a[1] == 0);
+
+#include <elf/tst-tls23.h>
generated by cgit v1.1 at 2025-07-10 22:40:02 +0000