target/arm: prepare for multiple dynamic XMLs
We will want to generate similar dynamic XML for gdbstub support of SVE registers (the upstream doesn't use XML). To that end lightly rename a few things to make the distinction. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200316172155.971-16-alex.bennee@linaro.org>
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@ -128,14 +128,20 @@ enum {
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/**
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* DynamicGDBXMLInfo:
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* @desc: Contains the XML descriptions.
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* @num_cpregs: Number of the Coprocessor registers seen by GDB.
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* @cpregs_keys: Array that contains the corresponding Key of
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* a given cpreg with the same order of the cpreg in the XML description.
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* @num: Number of the registers in this XML seen by GDB.
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* @data: A union with data specific to the set of registers
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* @cpregs_keys: Array that contains the corresponding Key of
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* a given cpreg with the same order of the cpreg
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* in the XML description.
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*/
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typedef struct DynamicGDBXMLInfo {
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char *desc;
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int num_cpregs;
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uint32_t *cpregs_keys;
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int num;
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union {
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struct {
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uint32_t *keys;
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} cpregs;
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} data;
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} DynamicGDBXMLInfo;
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/* CPU state for each instance of a generic timer (in cp15 c14) */
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@ -749,7 +755,7 @@ struct ARMCPU {
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uint64_t *cpreg_vmstate_values;
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int32_t cpreg_vmstate_array_len;
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DynamicGDBXMLInfo dyn_xml;
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DynamicGDBXMLInfo dyn_sysreg_xml;
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/* Timers used by the generic (architected) timer */
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QEMUTimer *gt_timer[NUM_GTIMERS];
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@ -974,7 +980,7 @@ int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
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/* Dynamically generates for gdb stub an XML description of the sysregs from
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* the cp_regs hashtable. Returns the registered sysregs number.
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*/
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int arm_gen_dynamic_xml(CPUState *cpu);
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int arm_gen_dynamic_sysreg_xml(CPUState *cpu);
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/* Returns the dynamically generated XML for the gdb stub.
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* Returns a pointer to the XML contents for the specified XML file or NULL
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@ -106,15 +106,15 @@ int arm_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
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return 0;
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}
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static void arm_gen_one_xml_reg_tag(GString *s, DynamicGDBXMLInfo *dyn_xml,
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ARMCPRegInfo *ri, uint32_t ri_key,
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int bitsize)
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static void arm_gen_one_xml_sysreg_tag(GString *s, DynamicGDBXMLInfo *dyn_xml,
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ARMCPRegInfo *ri, uint32_t ri_key,
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int bitsize)
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{
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g_string_append_printf(s, "<reg name=\"%s\"", ri->name);
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g_string_append_printf(s, " bitsize=\"%d\"", bitsize);
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g_string_append_printf(s, " group=\"cp_regs\"/>");
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dyn_xml->num_cpregs++;
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dyn_xml->cpregs_keys[dyn_xml->num_cpregs - 1] = ri_key;
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dyn_xml->data.cpregs.keys[dyn_xml->num] = ri_key;
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dyn_xml->num++;
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}
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static void arm_register_sysreg_for_xml(gpointer key, gpointer value,
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@ -126,12 +126,12 @@ static void arm_register_sysreg_for_xml(gpointer key, gpointer value,
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GString *s = param->s;
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ARMCPU *cpu = ARM_CPU(param->cs);
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CPUARMState *env = &cpu->env;
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DynamicGDBXMLInfo *dyn_xml = &cpu->dyn_xml;
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DynamicGDBXMLInfo *dyn_xml = &cpu->dyn_sysreg_xml;
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if (!(ri->type & (ARM_CP_NO_RAW | ARM_CP_NO_GDB))) {
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if (arm_feature(env, ARM_FEATURE_AARCH64)) {
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if (ri->state == ARM_CP_STATE_AA64) {
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arm_gen_one_xml_reg_tag(s , dyn_xml, ri, ri_key, 64);
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arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64);
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}
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} else {
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if (ri->state == ARM_CP_STATE_AA32) {
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@ -140,30 +140,30 @@ static void arm_register_sysreg_for_xml(gpointer key, gpointer value,
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return;
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}
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if (ri->type & ARM_CP_64BIT) {
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arm_gen_one_xml_reg_tag(s , dyn_xml, ri, ri_key, 64);
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arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 64);
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} else {
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arm_gen_one_xml_reg_tag(s , dyn_xml, ri, ri_key, 32);
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arm_gen_one_xml_sysreg_tag(s , dyn_xml, ri, ri_key, 32);
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}
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}
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}
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}
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}
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int arm_gen_dynamic_xml(CPUState *cs)
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int arm_gen_dynamic_sysreg_xml(CPUState *cs)
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{
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ARMCPU *cpu = ARM_CPU(cs);
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GString *s = g_string_new(NULL);
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RegisterSysregXmlParam param = {cs, s};
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cpu->dyn_xml.num_cpregs = 0;
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cpu->dyn_xml.cpregs_keys = g_new(uint32_t, g_hash_table_size(cpu->cp_regs));
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cpu->dyn_sysreg_xml.num = 0;
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cpu->dyn_sysreg_xml.data.cpregs.keys = g_new(uint32_t, g_hash_table_size(cpu->cp_regs));
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g_string_printf(s, "<?xml version=\"1.0\"?>");
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g_string_append_printf(s, "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">");
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g_string_append_printf(s, "<feature name=\"org.qemu.gdb.arm.sys.regs\">");
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g_hash_table_foreach(cpu->cp_regs, arm_register_sysreg_for_xml, ¶m);
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g_string_append_printf(s, "</feature>");
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cpu->dyn_xml.desc = g_string_free(s, false);
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return cpu->dyn_xml.num_cpregs;
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cpu->dyn_sysreg_xml.desc = g_string_free(s, false);
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return cpu->dyn_sysreg_xml.num;
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}
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const char *arm_gdb_get_dynamic_xml(CPUState *cs, const char *xmlname)
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@ -171,7 +171,7 @@ const char *arm_gdb_get_dynamic_xml(CPUState *cs, const char *xmlname)
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ARMCPU *cpu = ARM_CPU(cs);
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if (strcmp(xmlname, "system-registers.xml") == 0) {
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return cpu->dyn_xml.desc;
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return cpu->dyn_sysreg_xml.desc;
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}
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return NULL;
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}
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@ -208,7 +208,7 @@ static int arm_gdb_get_sysreg(CPUARMState *env, GByteArray *buf, int reg)
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const ARMCPRegInfo *ri;
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uint32_t key;
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key = cpu->dyn_xml.cpregs_keys[reg];
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key = cpu->dyn_sysreg_xml.data.cpregs.keys[reg];
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ri = get_arm_cp_reginfo(cpu->cp_regs, key);
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if (ri) {
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if (cpreg_field_is_64bit(ri)) {
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@ -7973,7 +7973,7 @@ void arm_cpu_register_gdb_regs_for_features(ARMCPU *cpu)
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19, "arm-vfp.xml", 0);
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}
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gdb_register_coprocessor(cs, arm_gdb_get_sysreg, arm_gdb_set_sysreg,
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arm_gen_dynamic_xml(cs),
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arm_gen_dynamic_sysreg_xml(cs),
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"system-registers.xml", 0);
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}
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