/* GNU/Linux/x86 specific low level interface, for the in-process
agent library for GDB.
- Copyright (C) 2010-2017 Free Software Foundation, Inc.
+ Copyright (C) 2010-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include <sys/mman.h>
#include "tracepoint.h"
#include "linux-x86-tdesc.h"
+#include "common/x86-xstate.h"
/* GDB register numbers. */
}
}
+/* Map the tdesc index to xcr0 mask. */
+static uint64_t idx2mask[X86_TDESC_LAST] = {
+ X86_XSTATE_X87_MASK,
+ X86_XSTATE_SSE_MASK,
+ X86_XSTATE_AVX_MASK,
+ X86_XSTATE_MPX_MASK,
+ X86_XSTATE_AVX_MPX_MASK,
+ X86_XSTATE_AVX_AVX512_MASK,
+ X86_XSTATE_AVX_MPX_AVX512_PKU_MASK,
+};
+
/* Return target_desc to use for IPA, given the tdesc index passed by
gdbserver. */
const struct target_desc *
get_ipa_tdesc (int idx)
{
- switch (idx)
+ if (idx >= X86_TDESC_LAST)
{
- case X86_TDESC_MMX:
- return tdesc_i386_mmx_linux;
- case X86_TDESC_SSE:
- return tdesc_i386_linux;
- case X86_TDESC_AVX:
- return tdesc_i386_avx_linux;
- case X86_TDESC_MPX:
- return tdesc_i386_mpx_linux;
- case X86_TDESC_AVX_MPX:
- return tdesc_i386_avx_mpx_linux;
- case X86_TDESC_AVX_MPX_AVX512:
- return tdesc_i386_avx_mpx_avx512_linux;
- default:
internal_error (__FILE__, __LINE__,
"unknown ipa tdesc index: %d", idx);
- return tdesc_i386_linux;
}
+ return i386_linux_read_description (idx2mask[idx]);
}
/* Allocate buffer for the jump pads. On i386, we can reach an arbitrary
void
initialize_low_tracepoint (void)
{
- init_registers_i386_mmx_linux ();
- init_registers_i386_linux ();
- init_registers_i386_avx_linux ();
- init_registers_i386_mpx_linux ();
- init_registers_i386_avx_mpx_avx512_linux ();
initialize_fast_tracepoint_trampoline_buffer ();
+ for (auto i = 0; i < X86_TDESC_LAST; i++)
+ i386_linux_read_description (idx2mask[i]);
}