*** Changes since GDB 7.12
+* GDB now supports access to the PKU register on GNU/Linux. The register is
+ added by the Memory Protection Keys for Userspace feature which will be
+ available in future Intel CPUs.
+
* Python Scripting
** New functions to start, stop and access a running btrace recording.
-1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
-1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
-1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
+ -1, /* PKEYS register PKRU */
ORIG_RAX * 8 /* "orig_eax" */
};
\f
#include "features/i386/amd64-mpx-linux.c"
#include "features/i386/amd64-avx-mpx-linux.c"
#include "features/i386/amd64-avx-avx512-linux.c"
-#include "features/i386/amd64-avx-mpx-avx512-linux.c"
+#include "features/i386/amd64-avx-mpx-avx512-pku-linux.c"
#include "features/i386/x32-linux.c"
#include "features/i386/x32-avx-linux.c"
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
+ -1, /* PKEYS register pkru */
/* End of hardware registers */
21 * 8, 22 * 8, /* fs_base and gs_base. */
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
if (gdbarch_ptr_bit (gdbarch) == 32)
/* No MPX on x32, fallback to AVX-AVX512. */
return tdesc_x32_avx_avx512_linux;
else
- return tdesc_amd64_avx_mpx_avx512_linux;
+ return tdesc_amd64_avx_mpx_avx512_pku_linux;
case X86_XSTATE_AVX_AVX512_MASK:
if (gdbarch_ptr_bit (gdbarch) == 32)
return tdesc_x32_avx_avx512_linux;
initialize_tdesc_amd64_mpx_linux ();
initialize_tdesc_amd64_avx_mpx_linux ();
initialize_tdesc_amd64_avx_avx512_linux ();
- initialize_tdesc_amd64_avx_mpx_avx512_linux ();
+ initialize_tdesc_amd64_avx_mpx_avx512_pku_linux ();
initialize_tdesc_x32_linux ();
initialize_tdesc_x32_avx_linux ();
/* Register number for the "orig_rax" register. If this register
contains a value >= 0 it is interpreted as the system call number
that the kernel is supposed to restart. */
-#define AMD64_LINUX_ORIG_RAX_REGNUM AMD64_NUM_REGS
+#define AMD64_LINUX_ORIG_RAX_REGNUM (AMD64_GSBASE_REGNUM + 1)
/* Total number of registers for GNU/Linux. */
#define AMD64_LINUX_NUM_REGS (AMD64_LINUX_ORIG_RAX_REGNUM + 1)
extern struct target_desc *tdesc_amd64_mpx_linux;
extern struct target_desc *tdesc_amd64_avx_mpx_linux;
extern struct target_desc *tdesc_amd64_avx_avx512_linux;
-extern struct target_desc *tdesc_amd64_avx_mpx_avx512_linux;
+extern struct target_desc *tdesc_amd64_avx_mpx_avx512_pku_linux;
extern struct target_desc *tdesc_x32_linux;
extern struct target_desc *tdesc_x32_avx_linux;
#include "features/i386/amd64-mpx.c"
#include "features/i386/amd64-avx-mpx.c"
#include "features/i386/amd64-avx-avx512.c"
-#include "features/i386/amd64-avx-mpx-avx512.c"
+#include "features/i386/amd64-avx-mpx-avx512-pku.c"
#include "features/i386/x32.c"
#include "features/i386/x32-avx.c"
"xmm28", "xmm29", "xmm30", "xmm31"
};
+static const char *amd64_pkeys_names[] = {
+ "pkru"
+};
+
/* DWARF Register Number Mapping as defined in the System V psABI,
section 3.6. */
AMD64_GSBASE_REGNUM, "gs_base");
}
+ if (tdesc_find_feature (tdesc, "org.gnu.gdb.i386.pkeys") != NULL)
+ {
+ tdep->pkeys_register_names = amd64_pkeys_names;
+ tdep->pkru_regnum = AMD64_PKRU_REGNUM;
+ tdep->num_pkeys_regs = 1;
+ }
+
tdep->num_byte_regs = 20;
tdep->num_word_regs = 16;
tdep->num_dword_regs = 16;
{
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
- return tdesc_amd64_avx_mpx_avx512;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_amd64_avx_mpx_avx512_pku;
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_amd64_avx_avx512;
case X86_XSTATE_MPX_MASK:
initialize_tdesc_amd64_mpx ();
initialize_tdesc_amd64_avx_mpx ();
initialize_tdesc_amd64_avx_avx512 ();
- initialize_tdesc_amd64_avx_mpx_avx512 ();
+ initialize_tdesc_amd64_avx_mpx_avx512_pku ();
initialize_tdesc_x32 ();
initialize_tdesc_x32_avx ();
AMD64_K7_REGNUM = AMD64_K0_REGNUM + 7,
AMD64_ZMM0H_REGNUM,
AMD64_ZMM31H_REGNUM = AMD64_ZMM0H_REGNUM + 31,
+ AMD64_PKRU_REGNUM,
AMD64_FSBASE_REGNUM,
AMD64_GSBASE_REGNUM
};
#define X86_XSTATE_AVX512 (X86_XSTATE_K | X86_XSTATE_ZMM_H \
| X86_XSTATE_ZMM)
+#define X86_XSTATE_PKRU (1ULL << 9)
+
/* Supported mask and size of the extended state. */
#define X86_XSTATE_X87_MASK X86_XSTATE_X87
#define X86_XSTATE_SSE_MASK (X86_XSTATE_X87 | X86_XSTATE_SSE)
#define X86_XSTATE_MPX_MASK (X86_XSTATE_SSE_MASK | X86_XSTATE_MPX)
#define X86_XSTATE_AVX_MPX_MASK (X86_XSTATE_AVX_MASK | X86_XSTATE_MPX)
#define X86_XSTATE_AVX_AVX512_MASK (X86_XSTATE_AVX_MASK | X86_XSTATE_AVX512)
-#define X86_XSTATE_AVX_MPX_AVX512_MASK (X86_XSTATE_AVX_MPX_MASK | X86_XSTATE_AVX512)
+#define X86_XSTATE_AVX_MPX_AVX512_PKU_MASK (X86_XSTATE_AVX_MPX_MASK\
+ | X86_XSTATE_AVX512 | X86_XSTATE_PKRU)
+
+#define X86_XSTATE_ALL_MASK (X86_XSTATE_AVX_MPX_AVX512_PKU_MASK)
-#define X86_XSTATE_ALL_MASK (X86_XSTATE_AVX_MPX_AVX512_MASK)
#define X86_XSTATE_SSE_SIZE 576
#define X86_XSTATE_AVX_SIZE 832
#define X86_XSTATE_BNDREGS_SIZE 1024
#define X86_XSTATE_BNDCFG_SIZE 1088
#define X86_XSTATE_AVX512_SIZE 2688
-#define X86_XSTATE_MAX_SIZE 2688
+#define X86_XSTATE_PKRU_SIZE 2696
+#define X86_XSTATE_MAX_SIZE 2696
/* In case one of the MPX XCR0 bits is set we consider we have MPX. */
#define HAS_MPX(XCR0) (((XCR0) & X86_XSTATE_MPX) != 0)
#define HAS_AVX(XCR0) (((XCR0) & X86_XSTATE_AVX) != 0)
#define HAS_AVX512(XCR0) (((XCR0) & X86_XSTATE_AVX512) != 0)
+#define HAS_PKRU(XCR0) (((XCR0) & X86_XSTATE_PKRU) != 0)
/* Get I386 XSAVE extended state size. */
#define X86_XSTATE_SIZE(XCR0) \
- (HAS_AVX512 (XCR0) ? X86_XSTATE_AVX512_SIZE : \
- (HAS_MPX (XCR0) ? X86_XSTATE_BNDCFG_SIZE : \
- (HAS_AVX (XCR0) ? X86_XSTATE_AVX_SIZE : X86_XSTATE_SSE_SIZE)))
+ (HAS_PKRU (XCR0) ? X86_XSTATE_PKRU_SIZE : \
+ (HAS_AVX512 (XCR0) ? X86_XSTATE_AVX512_SIZE : \
+ (HAS_MPX (XCR0) ? X86_XSTATE_BNDCFG_SIZE : \
+ (HAS_AVX (XCR0) ? X86_XSTATE_AVX_SIZE : X86_XSTATE_SSE_SIZE))))
#endif /* X86_XSTATE_H */
@samp{zmm16h} through @samp{zmm31h}, only valid for amd64.
@end itemize
+The @samp{org.gnu.gdb.i386.pkeys} feature is optional. It should
+describe a single register, @samp{pkru}. It is a 32-bit register
+valid for i386 and amd64.
+
@node MicroBlaze Features
@subsection MicroBlaze Features
@cindex target descriptions, MicroBlaze features
i386/i386-mpx i386/i386-mpx-linux \
i386/i386-avx-mpx i386/i386-avx-mpx-linux \
i386/i386-avx-avx512 i386/i386-avx-avx512-linux \
- i386/i386-avx-mpx-avx512 i386/i386-avx-mpx-avx512-linux \
+ i386/i386-avx-mpx-avx512-pku i386/i386-avx-mpx-avx512-pku-linux \
i386/amd64-avx i386/amd64-avx-linux \
i386/amd64-mpx i386/amd64-mpx-linux \
i386/amd64-avx-mpx i386/amd64-avx-mpx-linux \
i386/amd64-avx-avx512 i386/amd64-avx-avx512-linux \
- i386/amd64-avx-mpx-avx512 i386/amd64-avx-mpx-avx512-linux \
+ i386/amd64-avx-mpx-avx512-pku i386/amd64-avx-mpx-avx512-pku-linux \
i386/x32 i386/x32-linux \
i386/x32-avx i386/x32-avx-linux \
i386/x32-avx-avx512 i386/x32-avx-avx512-linux \
i386/amd64-avx.xml \
i386/amd64-avx-avx512-linux.xml \
i386/amd64-avx-avx512.xml \
- i386/amd64-avx-mpx-avx512-linux.xml \
- i386/amd64-avx-mpx-avx512.xml \
+ i386/amd64-avx-mpx-avx512-pku-linux.xml \
+ i386/amd64-avx-mpx-avx512-pku.xml \
i386/amd64-linux.xml \
i386/amd64-mpx-linux.xml \
i386/amd64-mpx.xml \
i386/i386-avx.xml \
i386/i386-avx-avx512-linux.xml \
i386/i386-avx-avx512.xml \
- i386/i386-avx-mpx-avx512-linux.xml \
- i386/i386-avx-mpx-avx512.xml \
+ i386/i386-avx-mpx-avx512-pku-linux.xml \
+ i386/i386-avx-mpx-avx512-pku.xml \
i386/i386-linux.xml \
i386/i386-mmx-linux.xml \
i386/i386-mmx.xml \
i386/32bit-avx512.xml
$(outdir)/i386/i386-avx-avx512-linux.dat: i386/32bit-core.xml i386/32bit-avx.xml \
i386/32bit-linux.xml i386/32bit-avx512.xml
-$(outdir)/i386/i386-avx-mpx-avx512.dat: i386/32bit-core.xml i386/32bit-avx.xml \
- i386/32bit-mpx.xml i386/32bit-avx512.xml
-$(outdir)/i386/i386-avx-mpx-avx512-linux.dat: i386/32bit-core.xml i386/32bit-avx.xml \
- i386/32bit-linux.xml i386/32bit-mpx.xml i386/32bit-avx512.xml
+$(outdir)/i386/i386-avx-mpx-avx512-pku.dat: i386/32bit-core.xml
+ i386/32bit-avx.xml i386/32bit-mpx.xml i386/32bit-avx512.xml \
+ i386/32bit-pkeys.xml
+$(outdir)/i386/i386-avx-mpx-avx512-pku-linux.dat: i386/32bit-core.xml \
+ i386/32bit-avx.xml i386/32bit-mpx.xml i386/32bit-avx512.xml \
+ i386/32bit-pkeys.xml i386/32bit-linux.xml
$(outdir)/i386/i386-mmx.dat: i386/32bit-core.xml
$(outdir)/i386/i386-mmx-linux.dat: i386/32bit-core.xml i386/32bit-linux.xml
$(outdir)/i386/amd64-avx.dat: i386/64bit-core.xml i386/64bit-avx.xml
i386/64bit-avx512.xml
$(outdir)/i386/amd64-avx-avx512-linux.dat: i386/64bit-core.xml i386/64bit-avx.xml \
i386/64bit-avx512.xml i386/64bit-linux.xml
-$(outdir)/i386/amd64-avx-mpx-avx512.dat: i386/64bit-core.xml i386/64bit-avx.xml \
- i386/64bit-mpx.xml i386/64bit-avx512.xml
-$(outdir)/i386/amd64-avx-mpx-avx512-linux.dat: i386/64bit-core.xml i386/64bit-avx.xml \
- i386/64bit-mpx.xml i386/64bit-avx512.xml \
- i386/64bit-linux.xml i386/64bit-segments.xml
+$(outdir)/i386/amd64-avx-mpx-avx512-pku.dat: i386/64bit-core.xml \
+ i386/64bit-avx.xml i386/64bit-mpx.xml i386/64bit-avx512.xml \
+ i386/64bit-pkeys.xml
+$(outdir)/i386/amd64-avx-mpx-avx512-pku-linux.dat: i386/64bit-core.xml \
+ i386/64bit-avx.xml i386/64bit-mpx.xml i386/64bit-avx512.xml \
+ i386/64bit-linux.xml i386/64bit-segments.xml \
+ i386/64bit-pkeys.xml
$(outdir)/i386/x32.dat: i386/x32-core.xml i386/64bit-sse.xml
$(outdir)/i386/x32-linux.dat: i386/x32-core.xml i386/64bit-sse.xml \
i386/64bit-linux.xml i386/64bit-segments.xml
--- /dev/null
+<?xml version="1.0"?>
+<!-- Copyright (C) 2016-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.pkeys">
+
+ <reg name="pkru" bitsize="32" type="uint32"/>
+
+</feature>
--- /dev/null
+<?xml version="1.0"?>
+<!-- Copyright (C) 2016-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.pkeys">
+
+ <reg name="pkru" bitsize="32" type="uint32"/>
+
+</feature>
/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
- Original: amd64-avx-mpx-avx512-linux.xml */
+ Original: amd64-avx-mpx-avx512-pku-linux.xml */
#include "defs.h"
#include "osabi.h"
#include "target-descriptions.h"
-struct target_desc *tdesc_amd64_avx_mpx_avx512_linux;
+struct target_desc *tdesc_amd64_avx_mpx_avx512_pku_linux;
static void
-initialize_tdesc_amd64_avx_mpx_avx512_linux (void)
+initialize_tdesc_amd64_avx_mpx_avx512_pku_linux (void)
{
struct target_desc *result = allocate_target_description ();
struct tdesc_feature *feature;
tdesc_create_reg (feature, "zmm30h", 152, 1, NULL, 256, "v2ui128");
tdesc_create_reg (feature, "zmm31h", 153, 1, NULL, 256, "v2ui128");
- tdesc_amd64_avx_mpx_avx512_linux = result;
+ feature = tdesc_create_feature (result, "org.gnu.gdb.i386.pkeys");
+ tdesc_create_reg (feature, "pkru", 152, 1, NULL, 32, "uint32");
+
+ tdesc_amd64_avx_mpx_avx512_pku_linux = result;
}
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. -->
-<!-- AMD64 with AVX, MPX, AVX512 - Includes Linux-only special "register". -->
+<!-- AMD64 with AVX, MPX, AVX512, PKEYS - Includes Linux-only
+ special "register". -->
<!DOCTYPE target SYSTEM "gdb-target.dtd">
<target>
<xi:include href="64bit-avx.xml"/>
<xi:include href="64bit-mpx.xml"/>
<xi:include href="64bit-avx512.xml"/>
+ <xi:include href="64bit-pkeys.xml"/>
</target>
/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
- Original: amd64-avx-mpx-avx512.xml */
+ Original: amd64-avx-mpx-avx512-pku.xml */
#include "defs.h"
#include "osabi.h"
#include "target-descriptions.h"
-struct target_desc *tdesc_amd64_avx_mpx_avx512;
+struct target_desc *tdesc_amd64_avx_mpx_avx512_pku;
static void
-initialize_tdesc_amd64_avx_mpx_avx512 (void)
+initialize_tdesc_amd64_avx_mpx_avx512_pku (void)
{
struct target_desc *result = allocate_target_description ();
struct tdesc_feature *feature;
tdesc_create_reg (feature, "zmm30h", 149, 1, NULL, 256, "v2ui128");
tdesc_create_reg (feature, "zmm31h", 150, 1, NULL, 256, "v2ui128");
- tdesc_amd64_avx_mpx_avx512 = result;
+ feature = tdesc_create_feature (result, "org.gnu.gdb.i386.pkeys");
+ tdesc_create_reg (feature, "pkru", 151, 1, NULL, 32, "uint32");
+
+ tdesc_amd64_avx_mpx_avx512_pku = result;
}
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. -->
-<!-- AMD64 with AVX, MPX, AVX512 -->
+<!-- AMD64 with AVX, MPX, AVX512, PKEYS -->
<!DOCTYPE target SYSTEM "gdb-target.dtd">
<target>
<xi:include href="64bit-avx.xml"/>
<xi:include href="64bit-mpx.xml"/>
<xi:include href="64bit-avx512.xml"/>
+ <xi:include href="64bit-pkeys.xml"/>
</target>
/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
- Original: i386-avx-mpx-avx512-linux.xml */
+ Original: i386-avx-mpx-avx512-pku-linux.xml */
#include "defs.h"
#include "osabi.h"
#include "target-descriptions.h"
-struct target_desc *tdesc_i386_avx_mpx_avx512_linux;
+struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
static void
-initialize_tdesc_i386_avx_mpx_avx512_linux (void)
+initialize_tdesc_i386_avx_mpx_avx512_pku_linux (void)
{
struct target_desc *result = allocate_target_description ();
struct tdesc_feature *feature;
tdesc_create_reg (feature, "zmm6h", 70, 1, NULL, 256, "v2ui128");
tdesc_create_reg (feature, "zmm7h", 71, 1, NULL, 256, "v2ui128");
- tdesc_i386_avx_mpx_avx512_linux = result;
+ feature = tdesc_create_feature (result, "org.gnu.gdb.i386.pkeys");
+ tdesc_create_reg (feature, "pkru", 72, 1, NULL, 32, "uint32");
+
+ tdesc_i386_avx_mpx_avx512_pku_linux = result;
}
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. -->
-<!-- I386 with AVX, MPX, AVX512 - Includes Linux-only special "register". -->
+<!-- I386 with AVX, MPX, AVX512, PKEYS - Includes Linux-only
+ special "register". -->
<!DOCTYPE target SYSTEM "gdb-target.dtd">
<target>
<xi:include href="32bit-avx.xml"/>
<xi:include href="32bit-mpx.xml"/>
<xi:include href="32bit-avx512.xml"/>
+ <xi:include href="32bit-pkeys.xml"/>
</target>
/* THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi:set ro:
- Original: i386-avx-mpx-avx512.xml */
+ Original: i386-avx-mpx-avx512-pku.xml */
#include "defs.h"
#include "osabi.h"
#include "target-descriptions.h"
-struct target_desc *tdesc_i386_avx_mpx_avx512;
+struct target_desc *tdesc_i386_avx_mpx_avx512_pku;
static void
-initialize_tdesc_i386_avx_mpx_avx512 (void)
+initialize_tdesc_i386_avx_mpx_avx512_pku (void)
{
struct target_desc *result = allocate_target_description ();
struct tdesc_feature *feature;
tdesc_create_reg (feature, "zmm6h", 69, 1, NULL, 256, "v2ui128");
tdesc_create_reg (feature, "zmm7h", 70, 1, NULL, 256, "v2ui128");
- tdesc_i386_avx_mpx_avx512 = result;
+ feature = tdesc_create_feature (result, "org.gnu.gdb.i386.pkeys");
+ tdesc_create_reg (feature, "pkru", 71, 1, NULL, 32, "uint32");
+
+ tdesc_i386_avx_mpx_avx512_pku = result;
}
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. -->
-<!-- I386 with AVX, MPX, AVX512 -->
+<!-- I386 with AVX, MPX, AVX512, PKEYS -->
<!DOCTYPE target SYSTEM "gdb-target.dtd">
<target>
<xi:include href="32bit-avx.xml"/>
<xi:include href="32bit-mpx.xml"/>
<xi:include href="32bit-avx512.xml"/>
+ <xi:include href="32bit-pkeys.xml"/>
</target>
rm -f i386-mpx.c i386-mpx-linux.c
rm -f i386-avx-mpx.c i386-avx-mpx-linux.c
rm -f i386-avx-avx512.c i386-avx-avx512-linux.c
- rm -f i386-avx-mpx-avx512.c i386-avx-mpx-avx512-linux.c
+ rm -f i386-avx-mpx-avx512-pku.c i386-avx-mpx-avx512-pku-linux.c
rm -f amd64-avx.c amd64-avx-linux.c
rm -f amd64-mpx.c amd64-mpx-linux.c
rm -f amd64-avx-mpx.c amd64-avx-mpx-linux.c
rm -f amd64-avx-avx512.c amd64-avx-avx512-linux.c
- rm -f amd64-avx-mpx-avx512.c amd64-avx-mpx-avx512-linux.c
+ rm -f amd64-avx-mpx-avx512-pku.c amd64-avx-mpx-avx512-pku-linux.c
rm -f i386-mmx.c i386-mmx-linux.c
rm -f x32.c x32-linux.c
rm -f x32-avx.c x32-avx-linux.c
i386-avx-avx512-linux-ipa.o: i386-avx-avx512-linux.c
$(IPAGENT_COMPILE) $<
$(POSTCOMPILE)
-i386-avx-mpx-avx512-linux-ipa.o: i386-avx-mpx-avx512-linux.c
+i386-avx-mpx-avx512-pku-linux-ipa.o: i386-avx-mpx-avx512-pku-linux.c
$(IPAGENT_COMPILE) $<
$(POSTCOMPILE)
linux-i386-ipa.o: linux-i386-ipa.c
amd64-avx-avx512-linux-ipa.o: amd64-avx-avx512-linux.c
$(IPAGENT_COMPILE) $<
$(POSTCOMPILE)
-amd64-avx-mpx-avx512-linux-ipa.o: amd64-avx-mpx-avx512-linux.c
+amd64-avx-mpx-avx512-pku-linux-ipa.o: amd64-avx-mpx-avx512-pku-linux.c
$(IPAGENT_COMPILE) $<
$(POSTCOMPILE)
linux-aarch64-ipa.o: linux-aarch64-ipa.c
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-avx512.dat i386-avx-avx512.c
i386-avx-avx512-linux.c : $(srcdir)/../regformats/i386/i386-avx-avx512-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-avx512-linux.dat i386-avx-avx512-linux.c
-i386-avx-mpx-avx512.c : $(srcdir)/../regformats/i386/i386-avx-mpx-avx512.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-mpx-avx512.dat i386-avx-mpx-avx512.c
-i386-avx-mpx-avx512-linux.c : $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-linux.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-linux.dat i386-avx-mpx-avx512-linux.c
i386-mpx.c : $(srcdir)/../regformats/i386/i386-mpx.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-mpx.dat i386-mpx.c
i386-mpx-linux.c : $(srcdir)/../regformats/i386/i386-mpx-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-mpx-linux.dat i386-mpx-linux.c
+i386-avx-mpx-avx512-pku.c : $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-pku.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-pku.dat i386-avx-mpx-avx512-pku.c
+i386-avx-mpx-avx512-pku-linux.c : $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-pku-linux.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-mpx-avx512-pku-linux.dat i386-avx-mpx-avx512-pku-linux.c
i386-avx-mpx.c : $(srcdir)/../regformats/i386/i386-avx-mpx.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/i386-avx-mpx.dat i386-avx-mpx.c
i386-avx-mpx-linux.c : $(srcdir)/../regformats/i386/i386-avx-mpx-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-avx512.dat amd64-avx-avx512.c
amd64-avx-avx512-linux.c : $(srcdir)/../regformats/i386/amd64-avx-avx512-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-avx512-linux.dat amd64-avx-avx512-linux.c
-amd64-avx-mpx-avx512.c : $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512.dat amd64-avx-mpx-avx512.c
-amd64-avx-mpx-avx512-linux.c : $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-linux.dat $(regdat_sh)
- $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-linux.dat amd64-avx-mpx-avx512-linux.c
amd64-mpx.c : $(srcdir)/../regformats/i386/amd64-mpx.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-mpx.dat amd64-mpx.c
amd64-mpx-linux.c : $(srcdir)/../regformats/i386/amd64-mpx-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-mpx-linux.dat amd64-mpx-linux.c
+amd64-avx-mpx-avx512-pku.c : $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-pku.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-pku.dat amd64-avx-mpx-avx512-pku.c
+amd64-avx-mpx-avx512-pku-linux.c : $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-pku-linux.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-mpx-avx512-pku-linux.dat amd64-avx-mpx-avx512-pku-linux.c
amd64-avx-mpx.c : $(srcdir)/../regformats/i386/amd64-avx-mpx.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/i386/amd64-avx-mpx.dat amd64-avx-mpx.c
amd64-avx-mpx-linux.c : $(srcdir)/../regformats/i386/amd64-avx-mpx-linux.dat $(regdat_sh)
# Default hostio_last_error implementation
srv_hostio_err_objs="hostio-errno.o"
-srv_i386_regobj="i386.o i386-avx.o i386-avx-avx512.o i386-avx-mpx-avx512.o i386-mpx.o i386-avx-mpx.o i386-mmx.o"
-srv_i386_linux_regobj="i386-linux.o i386-avx-linux.o i386-avx-avx512-linux.o i386-avx-mpx-avx512-linux.o i386-mpx-linux.o i386-avx-mpx-linux.o i386-mmx-linux.o"
-srv_amd64_regobj="amd64.o amd64-avx.o amd64-avx-avx512.o amd64-avx-mpx-avx512.o amd64-mpx.o amd64-avx-mpx.o x32.o x32-avx.o x32-avx-avx512.o"
-srv_amd64_linux_regobj="amd64-linux.o amd64-avx-linux.o amd64-avx-avx512-linux.o amd64-avx-mpx-avx512-linux.o amd64-mpx-linux.o amd64-avx-mpx-linux.o x32-linux.o x32-avx-linux.o x32-avx-avx512-linux.o"
+srv_i386_regobj="i386.o i386-avx.o i386-avx-avx512.o i386-avx-mpx-avx512-pku.o i386-mpx.o i386-avx-mpx.o i386-mmx.o"
+srv_i386_linux_regobj="i386-linux.o i386-avx-linux.o i386-avx-avx512-linux.o i386-avx-mpx-avx512-pku-linux.o i386-mpx-linux.o i386-avx-mpx-linux.o i386-mmx-linux.o"
+srv_amd64_regobj="amd64.o amd64-avx.o amd64-avx-avx512.o amd64-avx-mpx-avx512-pku.o amd64-mpx.o amd64-avx-mpx.o x32.o x32-avx.o x32-avx-avx512.o"
+srv_amd64_linux_regobj="amd64-linux.o amd64-avx-linux.o amd64-avx-avx512-linux.o amd64-avx-mpx-avx512-pku-linux.o amd64-mpx-linux.o amd64-avx-mpx-linux.o x32-linux.o x32-avx-linux.o x32-avx-avx512-linux.o"
-ipa_i386_linux_regobj="i386-linux-ipa.o i386-avx-linux-ipa.o i386-avx-mpx-linux-ipa.o i386-avx-avx512-linux-ipa.o i386-avx-mpx-avx512-linux-ipa.o i386-mpx-linux-ipa.o i386-mmx-linux-ipa.o"
-ipa_amd64_linux_regobj="amd64-linux-ipa.o amd64-avx-linux-ipa.o amd64-avx-mpx-linux-ipa.o amd64-avx-avx512-linux-ipa.o amd64-avx-mpx-avx512-linux-ipa.o amd64-mpx-linux-ipa.o"
+ipa_i386_linux_regobj="i386-linux-ipa.o i386-avx-linux-ipa.o i386-avx-mpx-linux-ipa.o i386-avx-avx512-linux-ipa.o i386-avx-mpx-avx512-pku-linux-ipa.o i386-mpx-linux-ipa.o i386-mmx-linux-ipa.o"
+ipa_amd64_linux_regobj="amd64-linux-ipa.o amd64-avx-linux-ipa.o amd64-avx-mpx-linux-ipa.o amd64-avx-avx512-linux-ipa.o amd64-avx-mpx-avx512-pku-linux-ipa.o amd64-mpx-linux-ipa.o"
ipa_ppc_linux_regobj="powerpc-32l-ipa.o powerpc-altivec32l-ipa.o powerpc-cell32l-ipa.o powerpc-vsx32l-ipa.o powerpc-isa205-32l-ipa.o powerpc-isa205-altivec32l-ipa.o powerpc-isa205-vsx32l-ipa.o powerpc-e500l-ipa.o powerpc-64l-ipa.o powerpc-altivec64l-ipa.o powerpc-cell64l-ipa.o powerpc-vsx64l-ipa.o powerpc-isa205-64l-ipa.o powerpc-isa205-altivec64l-ipa.o powerpc-isa205-vsx64l-ipa.o"
-srv_i386_32bit_xmlfiles="i386/32bit-core.xml i386/32bit-sse.xml i386/32bit-avx.xml i386/32bit-avx512.xml i386/32bit-mpx.xml"
-srv_i386_64bit_xmlfiles="i386/64bit-core.xml i386/64bit-segments.xml i386/64bit-sse.xml i386/64bit-avx.xml i386/64bit-avx512.xml i386/x32-core.xml i386/64bit-mpx.xml"
-srv_i386_xmlfiles="i386/i386.xml i386/i386-avx.xml i386/i386-avx-avx512.xml i386/i386-avx-mpx-avx512.xml i386/i386-mpx.xml i386/i386-avx-mpx.xml i386/i386-mmx.xml $srv_i386_32bit_xmlfiles"
-srv_amd64_xmlfiles="i386/amd64.xml i386/amd64-avx.xml i386/amd64-avx-avx512.xml i386/amd64-avx-mpx-avx512.xml i386/x32.xml i386/x32-avx.xml i386/x32-avx-avx512.xml i386/amd64-mpx.xml i386/amd64-avx-mpx.xml $srv_i386_64bit_xmlfiles"
-srv_i386_linux_xmlfiles="i386/i386-linux.xml i386/i386-avx-linux.xml i386/i386-avx-avx512-linux.xml i386/i386-avx-mpx-avx512-linux.xml i386/i386-mmx-linux.xml i386/32bit-linux.xml i386/i386-mpx-linux.xml i386/i386-avx-mpx-linux.xml $srv_i386_32bit_xmlfiles"
-srv_amd64_linux_xmlfiles="i386/amd64-linux.xml i386/amd64-avx-linux.xml i386/amd64-avx-avx512.xml i386/amd64-avx-mpx-avx512-linux.xml i386/64bit-linux.xml i386/amd64-mpx-linux.xml i386/amd64-avx-mpx-linux.xml i386/x32-linux.xml i386/x32-avx-linux.xml i386/x32-avx-avx512-linux.xml $srv_i386_64bit_xmlfiles"
+srv_i386_32bit_xmlfiles="i386/32bit-core.xml i386/32bit-sse.xml i386/32bit-avx.xml i386/32bit-avx512.xml i386/32bit-mpx.xml i386/32bit-pkeys.xml"
+srv_i386_64bit_xmlfiles="i386/64bit-core.xml i386/64bit-segments.xml i386/64bit-sse.xml i386/64bit-avx.xml i386/64bit-avx512.xml i386/x32-core.xml i386/64bit-mpx.xml i386/64bit-pkeys.xml"
+srv_i386_xmlfiles="i386/i386.xml i386/i386-avx.xml i386/i386-avx-avx512.xml i386/i386-avx-mpx-avx512-pku.xml i386/i386-mpx.xml i386/i386-avx-mpx.xml i386/i386-mmx.xml $srv_i386_32bit_xmlfiles"
+srv_amd64_xmlfiles="i386/amd64.xml i386/amd64-avx.xml i386/amd64-avx-avx512.xml i386/amd64-avx-mpx-avx512-pku.xml i386/x32.xml i386/x32-avx.xml i386/x32-avx-avx512.xml i386/amd64-mpx.xml i386/amd64-avx-mpx.xml $srv_i386_64bit_xmlfiles"
+srv_i386_linux_xmlfiles="i386/i386-linux.xml i386/i386-avx-linux.xml i386/i386-avx-avx512-linux.xml i386/i386-avx-mpx-avx512-pku-linux.xml i386/i386-mmx-linux.xml i386/32bit-linux.xml i386/i386-mpx-linux.xml i386/i386-avx-mpx-linux.xml $srv_i386_32bit_xmlfiles"
+srv_amd64_linux_xmlfiles="i386/amd64-linux.xml i386/amd64-avx-linux.xml i386/amd64-avx-avx512.xml i386/amd64-avx-mpx-avx512-pku-linux.xml i386/64bit-linux.xml i386/amd64-mpx-linux.xml i386/amd64-avx-mpx-linux.xml i386/x32-linux.xml i386/x32-avx-linux.xml i386/x32-avx-avx512-linux.xml $srv_i386_64bit_xmlfiles"
# Linux object files. This is so we don't have to repeat
static const int num_avx512_zmmh_high_registers = 16;
static const int num_avx512_ymmh_registers = 16;
static const int num_avx512_xmm_registers = 16;
+static const int num_pkeys_registers = 1;
/* Note: These functions preserve the reserved bits in control registers.
However, gdbserver promptly throws away that information. */
/* Space for 16 512-bit zmm16-31 values. */
unsigned char zmmh_high_space[1024];
+
+ /* Space for 1 32-bit PKRU register. The HW XSTATE size for this feature is
+ actually 64 bits, but WRPKRU/RDPKRU instructions ignore upper 32 bits. */
+ unsigned char pkru_space[8];
};
void
for (i = 0; i < num_avx512_ymmh_registers; i++)
memset (((char *) &fp->zmmh_high_space[0]) + 16 + i * 64, 0, 16);
}
+
+ if ((clear_bv & X86_XSTATE_PKRU))
+ for (i = 0; i < num_pkeys_registers; i++)
+ memset (((char *) &fp->pkru_space[0]) + i * 4, 0, 4);
}
/* Check if any x87 registers are changed. */
}
}
+ /* Check if any PKEYS registers are changed. */
+ if ((x86_xcr0 & X86_XSTATE_PKRU))
+ {
+ int pkru_regnum = find_regno (regcache->tdesc, "pkru");
+
+ for (i = 0; i < num_pkeys_registers; i++)
+ {
+ collect_register (regcache, i + pkru_regnum, raw);
+ p = ((char *) &fp->pkru_space[0]) + i * 4;
+ if (memcmp (raw, p, 4) != 0)
+ {
+ xstate_bv |= X86_XSTATE_PKRU;
+ memcpy (p, raw, 4);
+ }
+ }
+ }
+
/* Update the corresponding bits in xstate_bv if any SSE/AVX
registers are changed. */
fp->xstate_bv |= xstate_bv;
}
}
+ if ((x86_xcr0 & X86_XSTATE_PKRU) != 0)
+ {
+ int pkru_regnum = find_regno (regcache->tdesc, "pkru");
+
+ if ((clear_bv & X86_XSTATE_PKRU) != 0)
+ {
+ for (i = 0; i < num_pkeys_registers; i++)
+ supply_register_zeroed (regcache, i + pkru_regnum);
+ }
+ else
+ {
+ p = (gdb_byte *) &fp->pkru_space[0];
+ for (i = 0; i < num_pkeys_registers; i++)
+ supply_register (regcache, i + pkru_regnum, p + i * 4);
+ }
+ }
+
supply_register_by_name (regcache, "fioff", &fp->fioff);
supply_register_by_name (regcache, "fooff", &fp->fooff);
supply_register_by_name (regcache, "mxcsr", &fp->mxcsr);
return tdesc_amd64_mpx_linux;
case X86_TDESC_AVX_MPX:
return tdesc_amd64_avx_mpx_linux;
- case X86_TDESC_AVX_MPX_AVX512:
- return tdesc_amd64_avx_mpx_avx512_linux;
+ case X86_TDESC_AVX_MPX_AVX512_PKU:
+ return tdesc_amd64_avx_mpx_avx512_pku_linux;
case X86_TDESC_AVX_AVX512:
return tdesc_amd64_avx_avx512_linux;
default:
init_registers_amd64_mpx_linux ();
init_registers_amd64_avx_mpx_linux ();
init_registers_amd64_avx_avx512_linux ();
+ init_registers_amd64_avx_mpx_avx512_pku_linux ();
#endif
}
return tdesc_i386_avx_mpx_linux;
case X86_TDESC_AVX_AVX512:
return tdesc_i386_avx_avx512_linux;
- case X86_TDESC_AVX_MPX_AVX512:
- return tdesc_i386_avx_mpx_avx512_linux;
+ case X86_TDESC_AVX_MPX_AVX512_PKU:
+ return tdesc_i386_avx_mpx_avx512_pku_linux;
default:
internal_error (__FILE__, __LINE__,
"unknown ipa tdesc index: %d", idx);
init_registers_i386_avx_linux ();
init_registers_i386_mpx_linux ();
init_registers_i386_avx_avx512_linux ();
- init_registers_i386_avx_mpx_avx512_linux ();
+ init_registers_i386_avx_mpx_avx512_pku_linux ();
initialize_fast_tracepoint_trampoline_buffer ();
}
-1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm31 (AVX512) */
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1 /* pkru */
};
#define X86_64_NUM_REGS (sizeof (x86_64_regmap) / sizeof (x86_64_regmap[0]))
{
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
- return tdesc_amd64_avx_mpx_avx512_linux;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_amd64_avx_mpx_avx512_pku_linux;
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_amd64_avx_avx512_linux;
{
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK: /* No MPX on x32. */
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ /* No x32 MPX and PKU, fall back to avx_avx512. */
+ return tdesc_x32_avx_avx512_linux;
+
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_x32_avx_avx512_linux;
{
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case (X86_XSTATE_AVX_MPX_AVX512_MASK):
- return tdesc_i386_avx_mpx_avx512_linux;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_i386_avx_mpx_avx512_pku_linux;
case (X86_XSTATE_AVX_AVX512_MASK):
return tdesc_i386_avx_avx512_linux;
return X86_TDESC_MPX;
if (tdesc == tdesc_amd64_avx_mpx_linux)
return X86_TDESC_AVX_MPX;
- if (tdesc == tdesc_amd64_avx_mpx_avx512_linux || tdesc == tdesc_x32_avx_avx512_linux)
- return X86_TDESC_AVX_MPX_AVX512;
+ if (tdesc == tdesc_amd64_avx_mpx_avx512_pku_linux || tdesc == tdesc_x32_avx_avx512_linux)
+ return X86_TDESC_AVX_MPX_AVX512_PKU;
if (tdesc == tdesc_amd64_avx_avx512_linux)
return X86_TDESC_AVX_AVX512;
#endif
return X86_TDESC_MPX;
if (tdesc == tdesc_i386_avx_mpx_linux)
return X86_TDESC_AVX_MPX;
- if (tdesc == tdesc_i386_avx_mpx_avx512_linux)
- return X86_TDESC_AVX_MPX_AVX512;
+ if (tdesc == tdesc_i386_avx_mpx_avx512_pku_linux)
+ return X86_TDESC_AVX_MPX_AVX512_PKU;
if (tdesc == tdesc_i386_avx_avx512_linux)
return X86_TDESC_AVX_AVX512;
init_registers_amd64_mpx_linux ();
init_registers_amd64_avx_mpx_linux ();
init_registers_amd64_avx_avx512_linux ();
- init_registers_amd64_avx_mpx_avx512_linux ();
+ init_registers_amd64_avx_mpx_avx512_pku_linux ();
init_registers_x32_linux ();
init_registers_x32_avx_linux ();
init_registers_i386_mpx_linux ();
init_registers_i386_avx_mpx_linux ();
init_registers_i386_avx_avx512_linux ();
- init_registers_i386_avx_mpx_avx512_linux ();
+ init_registers_i386_avx_mpx_avx512_pku_linux ();
tdesc_i386_linux_no_xml = XNEW (struct target_desc);
copy_target_description (tdesc_i386_linux_no_xml, tdesc_i386_linux);
X86_TDESC_MPX = 3,
X86_TDESC_AVX_MPX = 4,
X86_TDESC_AVX_AVX512 = 5,
- X86_TDESC_AVX_MPX_AVX512 = 6,
+ X86_TDESC_AVX_MPX_AVX512_PKU = 6,
};
#ifdef __x86_64__
void init_registers_amd64_avx_avx512_linux (void);
extern const struct target_desc *tdesc_amd64_avx_avx512_linux;
-/* Defined in auto-generated file amd64-avx-mpx-avx512-linux.c. */
-void init_registers_amd64_avx_mpx_avx512_linux (void);
-extern const struct target_desc *tdesc_amd64_avx_mpx_avx512_linux;
+/* Defined in auto-generated file amd64-avx-mpx-avx512-pku-linux.c. */
+void init_registers_amd64_avx_mpx_avx512_pku_linux (void);
+extern const struct target_desc *tdesc_amd64_avx_mpx_avx512_pku_linux;
/* Defined in auto-generated file amd64-avx-mpx-linux.c. */
void init_registers_amd64_avx_mpx_linux (void);
extern const struct target_desc *tdesc_i386_avx_avx512_linux;
/* Defined in auto-generated file i386-avx-mpx-avx512-linux.c. */
-void init_registers_i386_avx_mpx_avx512_linux (void);
-extern const struct target_desc *tdesc_i386_avx_mpx_avx512_linux;
+void init_registers_i386_avx_mpx_avx512_pku_linux (void);
+extern const struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
/* Defined in auto-generated file i386-mpx-linux.c. */
void init_registers_i386_mpx_linux (void);
(I386_ST0_REGNUM <= (regno) && (regno) < I386_SSE_NUM_REGS)
#define GETXSTATEREGS_SUPPLIES(regno) \
- (I386_ST0_REGNUM <= (regno) && (regno) < I386_AVX512_NUM_REGS)
+ (I386_ST0_REGNUM <= (regno) && (regno) < I386_PKEYS_NUM_REGS)
/* Does the current host support the GETREGS request? */
int have_ptrace_getregs =
#include "features/i386/i386-avx-mpx-linux.c"
#include "features/i386/i386-avx-linux.c"
#include "features/i386/i386-avx-avx512-linux.c"
-#include "features/i386/i386-avx-mpx-avx512-linux.c"
+#include "features/i386/i386-avx-mpx-avx512-pku-linux.c"
/* Return non-zero, when the register is in the corresponding register
group. Put the LINUX_ORIG_EAX register in the system group. */
-1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
-1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
-1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
+ -1, /* PKRU register */
11 * 4, /* "orig_eax" */
};
switch ((xcr0 & X86_XSTATE_ALL_MASK))
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
- return tdesc_i386_avx_mpx_avx512_linux;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_i386_avx_mpx_avx512_pku_linux;
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_i386_avx_avx512_linux;
case X86_XSTATE_MPX_MASK:
initialize_tdesc_i386_mpx_linux ();
initialize_tdesc_i386_avx_mpx_linux ();
initialize_tdesc_i386_avx_avx512_linux ();
- initialize_tdesc_i386_avx_mpx_avx512_linux ();
+ initialize_tdesc_i386_avx_mpx_avx512_pku_linux ();
}
/* Register number for the "orig_eax" pseudo-register. If this
pseudo-register contains a value >= 0 it is interpreted as the
system call number that the kernel is supposed to restart. */
-#define I386_LINUX_ORIG_EAX_REGNUM (I386_ZMM7H_REGNUM + 1)
+#define I386_LINUX_ORIG_EAX_REGNUM (I386_PKRU_REGNUM + 1)
/* Total number of registers for GNU/Linux. */
#define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1)
extern struct target_desc *tdesc_i386_mpx_linux;
extern struct target_desc *tdesc_i386_avx_mpx_linux;
extern struct target_desc *tdesc_i386_avx_avx512_linux;
-extern struct target_desc *tdesc_i386_avx_mpx_avx512_linux;
+extern struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
/* Format of XSAVE extended state is:
struct
avx512_zmmh_regs0-7[1153..1407]
avx512_zmmh_regs8-15[1408..1663]
avx512_zmm_regs16-31[1664..2687]
+ pkru[2688..2752]
future_state etc
};
#include "features/i386/i386-mpx.c"
#include "features/i386/i386-avx-mpx.c"
#include "features/i386/i386-avx-avx512.c"
-#include "features/i386/i386-avx-mpx-avx512.c"
+#include "features/i386/i386-avx-mpx-avx512-pku.c"
#include "features/i386/i386-mmx.c"
#include "ax.h"
"bnd0raw", "bnd1raw", "bnd2raw", "bnd3raw", "bndcfgu", "bndstatus"
};
+static const char* i386_pkeys_names[] =
+{
+ "pkru"
+};
+
/* Register names for MPX pseudo-registers. */
static const char *i386_bnd_names[] =
return regnum >= 0 && regnum < I387_NUM_MPX_CTRL_REGS;
}
+/* PKRU register? */
+
+bool
+i386_pkru_regnum_p (struct gdbarch *gdbarch, int regnum)
+{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ int pkru_regnum = tdep->pkru_regnum;
+
+ if (pkru_regnum < 0)
+ return false;
+
+ regnum -= pkru_regnum;
+ return regnum >= 0 && regnum < I387_NUM_PKEYS_REGS;
+}
+
/* Return the name of register REGNUM, or the empty string if it is
an anonymous register. */
ymm_regnum_p, ymmh_regnum_p, ymm_avx512_regnum_p, ymmh_avx512_regnum_p,
bndr_regnum_p, bnd_regnum_p, k_regnum_p, zmm_regnum_p, zmmh_regnum_p,
zmm_avx512_regnum_p, mpx_ctrl_regnum_p, xmm_avx512_regnum_p,
- avx512_p, avx_p, sse_p;
+ avx512_p, avx_p, sse_p, pkru_regnum_p;
/* Don't include pseudo registers, except for MMX, in any register
groups. */
if (group == i386_mmx_reggroup)
return mmx_regnum_p;
+ pkru_regnum_p = i386_pkru_regnum_p(gdbarch, regnum);
xmm_regnum_p = i386_xmm_regnum_p (gdbarch, regnum);
xmm_avx512_regnum_p = i386_xmm_avx512_regnum_p (gdbarch, regnum);
mxcsr_regnum_p = i386_mxcsr_regnum_p (gdbarch, regnum);
&& !bnd_regnum_p
&& !mpx_ctrl_regnum_p
&& !zmm_regnum_p
- && !zmmh_regnum_p);
+ && !zmmh_regnum_p
+ && !pkru_regnum_p);
return default_register_reggroup_p (gdbarch, regnum, group);
}
const struct tdesc_feature *feature_core;
const struct tdesc_feature *feature_sse, *feature_avx, *feature_mpx,
- *feature_avx512;
+ *feature_avx512, *feature_pkeys;
int i, num_regs, valid_p;
if (! tdesc_has_registers (tdesc))
/* Try AVX512 registers. */
feature_avx512 = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.avx512");
+ /* Try PKEYS */
+ feature_pkeys = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.pkeys");
+
valid_p = 1;
/* The XCR0 bits. */
tdep->mpx_register_names[i]);
}
+ if (feature_pkeys)
+ {
+ tdep->xcr0 |= X86_XSTATE_PKRU;
+ if (tdep->pkru_regnum < 0)
+ {
+ tdep->pkeys_register_names = i386_pkeys_names;
+ tdep->pkru_regnum = I386_PKRU_REGNUM;
+ tdep->num_pkeys_regs = 1;
+ }
+
+ for (i = 0; i < I387_NUM_PKEYS_REGS; i++)
+ valid_p &= tdesc_numbered_register (feature_pkeys, tdesc_data,
+ I387_PKRU_REGNUM (tdep) + i,
+ tdep->pkeys_register_names[i]);
+ }
+
return valid_p;
}
/* Even though the default ABI only includes general-purpose registers,
floating-point registers and the SSE registers, we have to leave a
gap for the upper AVX, MPX and AVX512 registers. */
- set_gdbarch_num_regs (gdbarch, I386_AVX512_NUM_REGS);
+ set_gdbarch_num_regs (gdbarch, I386_PKEYS_NUM_REGS);
set_gdbarch_gnu_triplet_regexp (gdbarch, i386_gnu_triplet_regexp);
tdep->num_ymm_avx512_regs = 0;
tdep->num_xmm_avx512_regs = 0;
+ /* No PKEYS registers */
+ tdep->pkru_regnum = -1;
+ tdep->num_pkeys_regs = 0;
+
tdesc_data = tdesc_data_alloc ();
set_gdbarch_relocate_instruction (gdbarch, i386_relocate_instruction);
{
switch (xcr0 & X86_XSTATE_ALL_MASK)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
- return tdesc_i386_avx_mpx_avx512;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_i386_avx_mpx_avx512_pku;
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_i386_avx_avx512;
case X86_XSTATE_AVX_MPX_MASK:
initialize_tdesc_i386_mpx ();
initialize_tdesc_i386_avx_mpx ();
initialize_tdesc_i386_avx_avx512 ();
- initialize_tdesc_i386_avx_mpx_avx512 ();
+ initialize_tdesc_i386_avx_mpx_avx512_pku ();
/* Tell remote stub that we support XML target description. */
register_remote_support_xml ("i386");
/* YMM16-31 register names. Only used for tdesc_numbered_register. */
const char **ymm_avx512_register_names;
+ /* Number of PKEYS registers. */
+ int num_pkeys_regs;
+
+ /* Register number for PKRU register. */
+ int pkru_regnum;
+
+ /* PKEYS register names. */
+ const char **pkeys_register_names;
+
/* Target description. */
const struct target_desc *tdesc;
I386_K0_REGNUM, /* %k0 */
I386_K7_REGNUM = I386_K0_REGNUM + 7,
I386_ZMM0H_REGNUM, /* %zmm0h */
- I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7
+ I386_ZMM7H_REGNUM = I386_ZMM0H_REGNUM + 7,
+ I386_PKRU_REGNUM
};
/* Register numbers of RECORD_REGMAP. */
#define I386_AVX_NUM_REGS (I386_YMM7H_REGNUM + 1)
#define I386_MPX_NUM_REGS (I386_BNDSTATUS_REGNUM + 1)
#define I386_AVX512_NUM_REGS (I386_ZMM7H_REGNUM + 1)
+#define I386_PKEYS_NUM_REGS (I386_PKRU_REGNUM + 1)
/* Size of the largest register. */
#define I386_MAX_REGISTER_SIZE 64
extern int i386_k_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_zmm_regnum_p (struct gdbarch *gdbarch, int regnum);
extern int i386_zmmh_regnum_p (struct gdbarch *gdbarch, int regnum);
+extern bool i386_pkru_regnum_p (struct gdbarch *gdbarch, int regnum);
extern const char *i386_pseudo_register_name (struct gdbarch *gdbarch,
int regnum);
#define XSAVE_AVX512_ZMM_H_ADDR(tdep, xsave, regnum) \
(xsave + xsave_avx512_zmm_h_offset[regnum - I387_ZMM0H_REGNUM (tdep)])
+/* At xsave_pkeys_offset[REGNUM] you find the offset to the location
+ of the PKRU register data structure used by the "xsave"
+ instruction where GDB register REGNUM is stored. */
+
+static int xsave_pkeys_offset[] =
+{
+2688 + 0 * 8 /* %pkru (64 bits in XSTATE, 32-bit actually used by
+ instructions and applications). */
+};
+
+#define XSAVE_PKEYS_ADDR(tdep, xsave, regnum) \
+ (xsave + xsave_pkeys_offset[regnum - I387_PKRU_REGNUM (tdep)])
+
/* Similar to i387_supply_fxsave, but use XSAVE extended state. */
void
avx512_zmm_h = 0x20,
avx512_ymmh_avx512 = 0x40,
avx512_xmm_avx512 = 0x80,
+ pkeys = 0x100,
all = x87 | sse | avxh | mpx | avx512_k | avx512_zmm_h
- | avx512_ymmh_avx512 | avx512_xmm_avx512
+ | avx512_ymmh_avx512 | avx512_xmm_avx512 | pkeys
} regclass;
gdb_assert (regs != NULL);
if (regnum == -1)
regclass = all;
+ else if (regnum >= I387_PKRU_REGNUM (tdep)
+ && regnum < I387_PKEYSEND_REGNUM (tdep))
+ regclass = pkeys;
else if (regnum >= I387_ZMM0H_REGNUM (tdep)
&& regnum < I387_ZMMENDH_REGNUM (tdep))
regclass = avx512_zmm_h;
case none:
break;
+ case pkeys:
+ if ((clear_bv & X86_XSTATE_PKRU))
+ regcache_raw_supply (regcache, regnum, zero);
+ else
+ regcache_raw_supply (regcache, regnum,
+ XSAVE_PKEYS_ADDR (tdep, regs, regnum));
+ return;
+
case avx512_zmm_h:
if ((clear_bv & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
regcache_raw_supply (regcache, regnum, zero);
return;
case all:
+ /* Handle PKEYS registers. */
+ if ((tdep->xcr0 & X86_XSTATE_PKRU))
+ {
+ if ((clear_bv & X86_XSTATE_PKRU))
+ {
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i, zero);
+ }
+ else
+ {
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep);
+ i++)
+ regcache_raw_supply (regcache, i,
+ XSAVE_PKEYS_ADDR (tdep, regs, i));
+ }
+ }
+
/* Handle the upper ZMM registers. */
if ((tdep->xcr0 & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
{
avx512_zmm_h = 0x40 | check,
avx512_ymmh_avx512 = 0x80 | check,
avx512_xmm_avx512 = 0x100 | check,
+ pkeys = 0x200 | check,
all = x87 | sse | avxh | mpx | avx512_k | avx512_zmm_h
- | avx512_ymmh_avx512 | avx512_xmm_avx512
+ | avx512_ymmh_avx512 | avx512_xmm_avx512 | pkeys
} regclass;
gdb_assert (tdep->st0_regnum >= I386_ST0_REGNUM);
if (regnum == -1)
regclass = all;
+ else if (regnum >= I387_PKRU_REGNUM (tdep)
+ && regnum < I387_PKEYSEND_REGNUM (tdep))
+ regclass = pkeys;
else if (regnum >= I387_ZMM0H_REGNUM (tdep)
&& regnum < I387_ZMMENDH_REGNUM (tdep))
regclass = avx512_zmm_h;
/* Clear register set if its bit in xstat_bv is zero. */
if (clear_bv)
{
+ if ((clear_bv & X86_XSTATE_PKRU))
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep); i++)
+ memset (XSAVE_PKEYS_ADDR (tdep, regs, i), 0, 4);
+
if ((clear_bv & X86_XSTATE_BNDREGS))
for (i = I387_BND0R_REGNUM (tdep);
i < I387_BNDCFGU_REGNUM (tdep); i++)
if (regclass == all)
{
+ /* Check if any PKEYS registers are changed. */
+ if ((tdep->xcr0 & X86_XSTATE_PKRU))
+ for (i = I387_PKRU_REGNUM (tdep);
+ i < I387_PKEYSEND_REGNUM (tdep); i++)
+ {
+ regcache_raw_collect (regcache, i, raw);
+ p = XSAVE_PKEYS_ADDR (tdep, regs, i);
+ if (memcmp (raw, p, 4) != 0)
+ {
+ xstate_bv |= X86_XSTATE_PKRU;
+ memcpy (p, raw, 4);
+ }
+ }
+
/* Check if any ZMMH registers are changed. */
if ((tdep->xcr0 & (X86_XSTATE_ZMM_H | X86_XSTATE_ZMM)))
for (i = I387_ZMM0H_REGNUM (tdep);
internal_error (__FILE__, __LINE__,
_("invalid i387 regclass"));
+ case pkeys:
+ /* This is a PKEYS register. */
+ p = XSAVE_PKEYS_ADDR (tdep, regs, regnum);
+ if (memcmp (raw, p, 4) != 0)
+ {
+ xstate_bv |= X86_XSTATE_PKRU;
+ memcpy (p, raw, 4);
+ }
+ break;
+
case avx512_zmm_h:
/* This is a ZMM register. */
p = XSAVE_AVX512_ZMM_H_ADDR (tdep, regs, regnum);
case avx512_zmm_h:
case avx512_ymmh_avx512:
case avx512_xmm_avx512:
+ case pkeys:
/* Register REGNUM has been updated. Return. */
return;
}
#define I387_NUM_BND_REGS 4
#define I387_NUM_MPX_CTRL_REGS 2
#define I387_NUM_K_REGS 8
+#define I387_NUM_PKEYS_REGS 1
+#define I387_PKRU_REGNUM(tdep) ((tdep)->pkru_regnum)
#define I387_K0_REGNUM(tdep) ((tdep)->k0_regnum)
#define I387_NUM_ZMMH_REGS(tdep) ((tdep)->num_zmm_regs)
#define I387_ZMM0H_REGNUM(tdep) ((tdep)->zmm0h_regnum)
#define I387_XMM_AVX512_END_REGNUM(tdep) \
(I387_XMM16_REGNUM (tdep) + I387_NUM_XMM_AVX512_REGS (tdep))
+#define I387_PKEYSEND_REGNUM(tdep) \
+ (I387_PKRU_REGNUM (tdep) + I387_NUM_PKEYS_REGS)
+
/* Print out the i387 floating point state. */
extern void i387_print_float_info (struct gdbarch *gdbarch,
# THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi :set ro:
-# Generated from: i386/amd64-avx-mpx-avx512.xml
-name:amd64_avx_mpx_avx512
-xmltarget:amd64-avx-mpx-avx512.xml
+# Generated from: i386/amd64-avx-mpx-avx512-pku-linux.xml
+name:amd64_avx_mpx_avx512_pku_linux
+xmltarget:amd64-avx-mpx-avx512-pku-linux.xml
expedite:rbp,rsp,rip
64:rax
64:rbx
# THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi :set ro:
-# Generated from: i386/amd64-avx-mpx-avx512-linux.xml
-name:amd64_avx_mpx_avx512_linux
-xmltarget:amd64-avx-mpx-avx512-linux.xml
+# Generated from: i386/amd64-avx-mpx-avx512-pku.xml
+name:amd64_avx_mpx_avx512_pku
+xmltarget:amd64-avx-mpx-avx512-pku.xml
expedite:rbp,rsp,rip
64:rax
64:rbx
256:zmm29h
256:zmm30h
256:zmm31h
+32:pkru
# THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi :set ro:
-# Generated from: i386/i386-avx-mpx-avx512-linux.xml
-name:i386_avx_mpx_avx512_linux
-xmltarget:i386-avx-mpx-avx512-linux.xml
+# Generated from: i386/i386-avx-mpx-avx512-pku-linux.xml
+name:i386_avx_mpx_avx512_pku_linux
+xmltarget:i386-avx-mpx-avx512-pku-linux.xml
expedite:ebp,esp,eip
32:eax
32:ecx
256:zmm5h
256:zmm6h
256:zmm7h
+32:pkru
# THIS FILE IS GENERATED. -*- buffer-read-only: t -*- vi :set ro:
-# Generated from: i386/i386-avx-mpx-avx512.xml
-name:i386_avx_mpx_avx512
-xmltarget:i386-avx-mpx-avx512.xml
+# Generated from: i386/i386-avx-mpx-avx512-pku.xml
+name:i386_avx_mpx_avx512_pku
+xmltarget:i386-avx-mpx-avx512-pku.xml
expedite:ebp,esp,eip
32:eax
32:ecx
256:zmm5h
256:zmm6h
256:zmm7h
+32:pkru
--- /dev/null
+/* Test program for PKEYS registers.
+
+ Copyright 2015-2017 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <stddef.h>
+#include "x86-cpuid.h"
+
+#ifndef NOINLINE
+#define NOINLINE __attribute__ ((noinline))
+#endif
+
+unsigned int have_pkru (void) NOINLINE;
+
+static inline unsigned long
+rdpkru (void)
+{
+ unsigned int eax, edx;
+ unsigned int ecx = 0;
+ unsigned int pkru;
+
+ asm volatile (".byte 0x0f,0x01,0xee\n\t"
+ : "=a" (eax), "=d" (edx)
+ : "c" (ecx));
+ pkru = eax;
+ return pkru;
+}
+
+static inline void
+wrpkru (unsigned int pkru)
+{
+ unsigned int eax = pkru;
+ unsigned int ecx = 0;
+ unsigned int edx = 0;
+
+ asm volatile (".byte 0x0f,0x01,0xef\n\t"
+ : : "a" (eax), "c" (ecx), "d" (edx));
+}
+
+unsigned int NOINLINE
+have_pkru (void)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
+ return 0;
+
+ if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
+ {
+ if (__get_cpuid_max (0, NULL) < 7)
+ return 0;
+
+ __cpuid_count (7, 0, eax, ebx, ecx, edx);
+
+ if ((ecx & bit_PKU) == bit_PKU)
+ return 1;
+ }
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ unsigned int wr_value = 0x12345678;
+ unsigned int rd_value = 0x0;
+
+ if (have_pkru ())
+ {
+ wrpkru (wr_value);
+ asm ("nop\n\t"); /* break here 1. */
+
+ rd_value = rdpkru ();
+ asm ("nop\n\t"); /* break here 2. */
+ }
+ return 0;
+}
--- /dev/null
+# Copyright 2015-2017 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+standard_testfile
+
+if { ![istarget i?86-*-*] && ![istarget x86_64-*-* ] } {
+ unsupported "skipping x86 PKEYS tests."
+ return
+}
+
+set comp_flags "-I${srcdir}/../nat/"
+
+if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \
+ [list debug additional_flags=${comp_flags}]] } {
+ untested "failed to compile x86 PKEYS test.
+ return -1
+}
+
+if ![runto_main] {
+ untested "could not run to main"
+ return -1
+}
+
+set supports_pkru 0
+set test "probe PKRU support"
+gdb_test_multiple "print have_pkru()" $test {
+ -re ".. = 1\r\n$gdb_prompt $" {
+ pass $test
+ set supports_pkru 1
+ }
+}
+
+if { !$supports_pkru } {
+ unsupported "processor does not support protection key feature."
+ return
+}
+
+# Test pkru register at startup
+# set test_string "0"
+
+gdb_test "print \$pkru" "= 0" "pkru register"
+
+# Read values from pseudo registers.
+gdb_breakpoint [ gdb_get_line_number "break here 1" ]
+gdb_continue_to_breakpoint "break here 1" ".*break here 1.*"
+
+gdb_test "info register pkru" ".*pkru.*0x12345678.*" "read pkru register"
+gdb_test "print /x \$pkru = 0x44444444" "= 0x44444444" "set pkru value"
+gdb_test "info register pkru" ".*pkru.*0x44444444.*" "read value after setting value"
+
+gdb_breakpoint [ gdb_get_line_number "break here 2" ]
+gdb_continue_to_breakpoint "break here 2" ".*break here 2.*"
+
+gdb_test "print /x rd_value" "= 0x44444444" "variable after reading pkru"
#ifdef __x86_64__
switch (xcr0_features_bits)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
if (is_x32)
- /* No MPX on x32, fallback to AVX-AVX512. */
+ /* No MPX, PKU on x32, fall back to AVX-AVX512. */
return tdesc_x32_avx_avx512_linux;
else
- return tdesc_amd64_avx_mpx_avx512_linux;
+ return tdesc_amd64_avx_mpx_avx512_pku_linux;
case X86_XSTATE_AVX_AVX512_MASK:
if (is_x32)
return tdesc_x32_avx_avx512_linux;
{
switch (xcr0_features_bits)
{
- case X86_XSTATE_AVX_MPX_AVX512_MASK:
- return tdesc_i386_avx_mpx_avx512_linux;
+ case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
+ return tdesc_i386_avx_mpx_avx512_pku_linux;
case X86_XSTATE_AVX_AVX512_MASK:
return tdesc_i386_avx_avx512_linux;
case X86_XSTATE_MPX_MASK:
projects / thirdparty / binutils-gdb.git / commitdiff
