From 1dbcd68cf12168c359df2da36b5b612100310a30 Mon Sep 17 00:00:00 2001 From: Walfred Tedeschi Date: Wed, 20 Nov 2013 13:02:00 +0100 Subject: Add MPX support for i386 2013-11-20 Walfred Tedeschi * i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Add MPX registers on the range of registers to be read from xsave buffer. (i386_linux_read_description): Add case for MPX. * i386-linux-tdep.c: Include features/i386/i386-mpx-linux.c. (i386_linux_gregset_reg_offset): Add MPX registers. (i386_linux_core_read_description): Initialize also MPX. (_initialize_i386_linux_tdep): Add mpx initialization. * i386-tdep.h (gdbarch_tdep): Add fields bnd0r_regnum, bnd0_regnum, mpx_register_names. (i386_regnum): Add MPX registers. (I386_MPX_NUM_REGS): New macro. (i386_bnd_regnum_p): New function. * i386-linux-tdep.h (I386_LINUX_NUM_REGS): Set number of registers to be the number of BNDSTATUS. (tdesc_i386_mpx_linux): Add description for MPX Linux registers. * i386-tdep.c: Include features/i386/i386-mpx.c. (i386_mpx_names): Add MPX register names array. (i386_bnd_names): Add bnd pseudo register names array. (i386_bndr_regnum_p): Lookup register numbers for bnd raw registers. (i386_bndr_regnum_p): Lookup register numbers for bnd raw registers. (386_mpx_ctrl_regnum_p): Lookup register numbers for MPX control registers. (i386_bnd_type): New function. (i386_pseudo_register_type): Use i386_bnd_type for bnd pseudo register types. (i386_pseudo_register_read_into_value): Add bnd case. (i386_pseudo_register_write): Add bnd pseudo registers. (i386_register_reggroup_p): Add MPX register to the group all. (i386_validate_tdesc_p): Add MPX to the target description validation. (i386_pseudo_register_name): Add bnd pseudo registers. (i386_gdbarch_init): Add MPX for architecture initialization. (_initia_initialize_i386_tdep): Add mpx initialization. * i387-tdep.c (xsave_mpx_offset): New vector for MPX offsets on XSAVE buffer. (XSAVE_MPX_ADDR): New macro. (i387_supply_xsave): Add MPX case. (i387_collect_xsave): Add MPX case. * i387-tdep.h (I387_BND0R_REGNUM): New macro. (I387_BNDCFGU_REGNUM): New macro. (I387_NUM_MPX_REGS): New macro. (I387_NUM_BND_REGS): New macro. (I387_NUM_MPX_CTRL_REGS): New macro. (I387_MPXEND_REGNUM): New macro. * common/i386-xstate.h (I386_XSTATE_BNDREGS): New macro. (I386_XSTATE_BNDCFG): Likewise. (I386_XSTATE_MPX_MASK): Likewise. (I386_XSTATE_ALL_MASK): New macro represents flags for all states. (I386_XSTATE_BNDREGS_SIZE): New macro. (I386_XSTATE_BNDCFG_SIZE): Likewise. (I386_XSTATE_SIZE): Adapt for MPX. (I386_XSTATE_MAX_SIZE): Likewise. Change-Id: I9ddb7d49434d86fa18eb6b99515203d7c567aefd Signed-off-by: Walfred Tedeschi Conflicts: gdb/ChangeLog --- gdb/i386-linux-tdep.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'gdb/i386-linux-tdep.c') diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index 21aee96..b46a51e 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -50,6 +50,7 @@ #include "features/i386/i386-linux.c" #include "features/i386/i386-mmx-linux.c" +#include "features/i386/i386-mpx-linux.c" #include "features/i386/i386-avx-linux.c" /* Supported register note sections. */ @@ -569,6 +570,8 @@ int i386_linux_gregset_reg_offset[] = -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */ + -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */ 11 * 4 /* "orig_eax" */ }; @@ -642,8 +645,11 @@ i386_linux_core_read_description (struct gdbarch *gdbarch, { /* Linux/i386. */ uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd); - switch ((xcr0 & I386_XSTATE_AVX_MASK)) + + switch ((xcr0 & I386_XSTATE_ALL_MASK)) { + case I386_XSTATE_MPX_MASK: + return tdesc_i386_mpx_linux; case I386_XSTATE_AVX_MASK: return tdesc_i386_avx_linux; case I386_XSTATE_SSE_MASK: @@ -979,4 +985,5 @@ _initialize_i386_linux_tdep (void) initialize_tdesc_i386_linux (); initialize_tdesc_i386_mmx_linux (); initialize_tdesc_i386_avx_linux (); + initialize_tdesc_i386_mpx_linux (); } -- cgit v1.1