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target/arm: Split out output_vector_union_type

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Create a subroutine for creating the union of unions
of the various type sizes that a vector may contain.

Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230227213329.793795-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-02-27 11:33:19 -10:00 • committed by Peter Maydell
parent e03aba8853
commit f214bdde5a
1 changed files with 45 additions and 38 deletions
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31
target/arm/gdbstub64.c
View file

@ -210,6 +210,8 @@ int aarch64_gdb_set_sve_reg(CPUARMState *env, uint8_t *buf, int reg)
return 0; return 0;
} }
static void output_vector_union_type(GString *s, int reg_width)
{
struct TypeSize { struct TypeSize {
const char *gdb_type; const char *gdb_type;
short size; short size;
@ -237,17 +239,10 @@ static const struct TypeSize vec_lanes[] = {
{ "int8", 8, 'b', 's' }, { "int8", 8, 'b', 's' },
}; };
int arm_gen_dynamic_svereg_xml(CPUState *cs, int base_reg) static const char suf[] = { 'q', 'd', 's', 'h', 'b' };
{
ARMCPU *cpu = ARM_CPU(cs);
GString *s = g_string_new(NULL);
DynamicGDBXMLInfo *info = &cpu->dyn_svereg_xml;
g_autoptr(GString) ts = g_string_new(""); g_autoptr(GString) ts = g_string_new("");
int i, j, bits, reg_width = (cpu->sve_max_vq * 128); int i, j, bits;
info->num = 0;
g_string_printf(s, "<?xml version=\"1.0\"?>");
g_string_append_printf(s, "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">");
g_string_append_printf(s, "<feature name=\"org.gnu.gdb.aarch64.sve\">");
/* First define types and totals in a whole VL */ /* First define types and totals in a whole VL */
for (i = 0; i < ARRAY_SIZE(vec_lanes); i++) { for (i = 0; i < ARRAY_SIZE(vec_lanes); i++) {
@ -263,7 +258,6 @@ int arm_gen_dynamic_svereg_xml(CPUState *cs, int base_reg)
* 8 bits. * 8 bits.
*/ */
for (bits = 128, i = 0; bits >= 8; bits /= 2, i++) { for (bits = 128, i = 0; bits >= 8; bits /= 2, i++) {
const char suf[] = { 'q', 'd', 's', 'h', 'b' };
g_string_append_printf(s, "<union id=\"svevn%c\">", suf[i]); g_string_append_printf(s, "<union id=\"svevn%c\">", suf[i]);
for (j = 0; j < ARRAY_SIZE(vec_lanes); j++) { for (j = 0; j < ARRAY_SIZE(vec_lanes); j++) {
if (vec_lanes[j].size == bits) { if (vec_lanes[j].size == bits) {
@ -277,11 +271,24 @@ int arm_gen_dynamic_svereg_xml(CPUState *cs, int base_reg)
/* And now the final union of unions */ /* And now the final union of unions */
g_string_append(s, "<union id=\"svev\">"); g_string_append(s, "<union id=\"svev\">");
for (bits = 128, i = 0; bits >= 8; bits /= 2, i++) { for (bits = 128, i = 0; bits >= 8; bits /= 2, i++) {
const char suf[] = { 'q', 'd', 's', 'h', 'b' };
g_string_append_printf(s, "<field name=\"%c\" type=\"svevn%c\"/>", g_string_append_printf(s, "<field name=\"%c\" type=\"svevn%c\"/>",
suf[i], suf[i]); suf[i], suf[i]);
} }
g_string_append(s, "</union>"); g_string_append(s, "</union>");
}
int arm_gen_dynamic_svereg_xml(CPUState *cs, int base_reg)
{
ARMCPU *cpu = ARM_CPU(cs);
GString *s = g_string_new(NULL);
DynamicGDBXMLInfo *info = &cpu->dyn_svereg_xml;
int i, reg_width = (cpu->sve_max_vq * 128);
info->num = 0;
g_string_printf(s, "<?xml version=\"1.0\"?>");
g_string_append_printf(s, "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">");
g_string_append_printf(s, "<feature name=\"org.gnu.gdb.aarch64.sve\">");
output_vector_union_type(s, reg_width);
/* Finally the sve prefix type */ /* Finally the sve prefix type */
g_string_append_printf(s, g_string_append_printf(s,