s390x/gdb: add gs registers
Let's provide the guarded storage registers via gdb server. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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2
configure
vendored
2
configure
vendored
@ -6231,7 +6231,7 @@ case "$target_name" in
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echo "TARGET_ABI32=y" >> $config_target_mak
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echo "TARGET_ABI32=y" >> $config_target_mak
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;;
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;;
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s390x)
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s390x)
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gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml"
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gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
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;;
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;;
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tilegx)
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tilegx)
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;;
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;;
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14
gdb-xml/s390-gs.xml
Normal file
14
gdb-xml/s390-gs.xml
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@ -0,0 +1,14 @@
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<?xml version="1.0"?>
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<!-- Copyright 2017 IBM Corp.
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This work is licensed under the terms of the GNU GPL, version 2 or
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(at your option) any later version. See the COPYING file in the
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top-level directory. -->
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<!DOCTYPE feature SYSTEM "gdb-target.dtd">
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<feature name="org.gnu.gdb.s390.gs">
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<reg name="gs_reserved" bitsize="64" type="uint64" group="system"/>
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<reg name="gsd" bitsize="64" type="uint64" group="system"/>
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<reg name="gssm" bitsize="64" type="uint64" group="system"/>
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<reg name="gsepla" bitsize="64" type="data_ptr" group="system"/>
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</feature>
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@ -286,6 +286,26 @@ static int cpu_write_virt_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
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}
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}
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#endif
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#endif
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/* the values represent the positions in s390-gs.xml */
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#define S390_GS_RESERVED_REGNUM 0
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#define S390_GS_GSD_REGNUM 1
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#define S390_GS_GSSM_REGNUM 2
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#define S390_GS_GSEPLA_REGNUM 3
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/* total number of registers in s390-gs.xml */
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#define S390_NUM_GS_REGS 4
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static int cpu_read_gs_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
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{
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return gdb_get_regl(mem_buf, env->gscb[n]);
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}
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static int cpu_write_gs_reg(CPUS390XState *env, uint8_t *mem_buf, int n)
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{
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env->gscb[n] = ldtul_p(mem_buf);
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cpu_synchronize_post_init(ENV_GET_CPU(env));
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return 8;
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}
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void s390_cpu_gdb_init(CPUState *cs)
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void s390_cpu_gdb_init(CPUState *cs)
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{
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{
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gdb_register_coprocessor(cs, cpu_read_ac_reg,
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gdb_register_coprocessor(cs, cpu_read_ac_reg,
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@ -300,6 +320,10 @@ void s390_cpu_gdb_init(CPUState *cs)
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cpu_write_vreg,
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cpu_write_vreg,
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S390_NUM_VREGS, "s390-vx.xml", 0);
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S390_NUM_VREGS, "s390-vx.xml", 0);
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gdb_register_coprocessor(cs, cpu_read_gs_reg,
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cpu_write_gs_reg,
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S390_NUM_GS_REGS, "s390-gs.xml", 0);
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#ifndef CONFIG_USER_ONLY
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#ifndef CONFIG_USER_ONLY
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gdb_register_coprocessor(cs, cpu_read_c_reg,
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gdb_register_coprocessor(cs, cpu_read_c_reg,
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cpu_write_c_reg,
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cpu_write_c_reg,
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