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2735833d5f
This patch allows examination of the registers FS_BASE and GS_BASE for Linux Systems running on 64bit. Tests for simple read and write of the new registers is also added with this patch. 2017-01-27 Walfred Tedeschi <walfred.tedeschi@intel.com> Richard Henderson <rth@redhat.com> gdb/ChangeLog: * amd64-linux-nat.c (PTRACE_ARCH_PRCTL): New define. (amd64_linux_fetch_inferior_registers): Add case to fetch FS_BASE GS_BASE for older kernels. (amd64_linux_store_inferior_registers): Add case to store FS_BASE GS_BASE for older kernels. * amd64-linux-tdep.c (amd64_linux_gregset_reg_offset): Add FS_BASE and GS_BASE to the offset table. (amd64_linux_register_reggroup_p): Add FS_BASE and GS_BASE to the system register group. * amd64-nat.c (amd64_native_gregset_reg_offset): Implements case for older kernels. * amd64-tdep.c (amd64_init_abi): Add segment registers for the amd64 ABI. * amd64-tdep.h (amd64_regnum): Add AMD64_FSBASE_REGNUM and AMD64_GSBASE_REGNUM. (AMD64_NUM_REGS): Set to AMD64_GSBASE_REGNUM + 1. * features/Makefile (amd64-linux.dat, amd64-avx-linux.dat) (amd64-mpx-linux.dat, amd64-avx512-linux.dat, x32-linux.dat) (x32-avx-linux.dat, x32-avx512-linux.dat): Add i386/64bit-segments.xml in those rules. * features/i386/64bit-segments.xml: New file. * features/i386/amd64-avx-mpx-linux.xml: Add 64bit-segments.xml. * features/i386/amd64-avx-linux.xml: Add 64bit-segments.xml. * features/i386/amd64-avx512-linux.xml: Add 64bit-segments.xml. * features/i386/amd64-mpx-linux.xml: Add 64bit-segments.xml. * features/i386/x32-avx512-linux.xml: Add 64bit-segments.xml. * features/i386/x32-avx-linux.xml: Add 64bit-segments.xml. * features/i386/amd64-linux.xml: Add 64bit-segments.xml. * features/i386/amd64-avx-linux.c: Regenerated. * features/i386/amd64-avx-mpx-linux.c: Regenerated. * features/i386/amd64-avx-mpx.c: Regenerated. * features/i386/amd64-avx512-linux.c: Regenerated. * features/i386/amd64-linux.c: Regenerated. * features/i386/amd64-mpx-linux.c: Regenerated. * features/i386/i386-avx-mpx-linux.c: Regenerated. * features/i386/i386-avx-mpx.c: Regenerated. * features/i386/x32-avx-linux.c: Regenerated. * features/i386/x32-avx512-linux.c: Regenerated. * regformats/i386/amd64-avx-linux.dat: Regenerated. * regformats/i386/amd64-avx-mpx-linux.dat: Regenerated. * regformats/i386/amd64-avx512-linux.dat: Regenerated. * regformats/i386/amd64-linux.dat: Regenerated. * regformats/i386/amd64-mpx-linux.dat: Regenerated. * regformats/i386/x32-avx-linux.dat: Regenerated. * regformats/i386/x32-avx512-linux.dat: Regenerated. * regformats/i386/x32-linux.dat: Regenerated. gdb/doc/ChangeLog: * gdb.texinfo (i386 Features): Add system segment registers as feature. gdb/gdbserver/ChangeLog: * linux-x86-low.c (x86_64_regmap): Add fs_base and gs_base to the register table. (x86_fill_gregset): Add support for old kernels for the fs_base and gs_base system registers. (x86_store_gregset): Likewise. * configure.srv (srv_i386_64bit_xmlfiles): Add 64bit-segments.xml. gdb/testsuite/ChangeLog: * gdb.arch/amd64-gs_base.c: New file. * gdb.arch/amd64-gs_base.exp: New file. Change-Id: I2e0eeb93058a2320d4d3b045082643cfe4aff963 Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>
19 lines
624 B
XML
19 lines
624 B
XML
<?xml version="1.0"?>
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<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. -->
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<!-- AMD64 - Includes Linux-only special "register". -->
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<!DOCTYPE target SYSTEM "gdb-target.dtd">
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<target>
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<architecture>i386:x86-64</architecture>
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<osabi>GNU/Linux</osabi>
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<xi:include href="64bit-core.xml"/>
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<xi:include href="64bit-sse.xml"/>
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<xi:include href="64bit-linux.xml"/>
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<xi:include href="64bit-segments.xml"/>
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</target>
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