GDBFeatureBuilder unifies the logic to generate dynamic GDBFeature. Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com> --- include/exec/gdbstub.h | 20 ++++++++++++++ gdbstub/gdbstub.c | 59 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 79 insertions(+)
diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h index d0dcc99ed4..1f4608d4f9 100644 --- a/include/exec/gdbstub.h +++ b/include/exec/gdbstub.h @@ -16,6 +16,11 @@ typedef struct GDBFeature { int num_regs; } GDBFeature; +typedef struct GDBFeatureBuilder { + GDBFeature *feature; + GPtrArray *xml; +} GDBFeatureBuilder; + /* Get or set a register. Returns the size of the register. */ typedef int (*gdb_get_reg_cb)(CPUArchState *env, GByteArray *buf, int reg); @@ -34,6 +39,21 @@ void gdb_register_coprocessor(CPUState *cpu, */ int gdbserver_start(const char *port_or_device); +void gdb_feature_builder_init(GDBFeatureBuilder *builder, GDBFeature *feature, + const char *name, const char *xmlname); + +void gdb_feature_builder_append_tag(const GDBFeatureBuilder *builder, + const char *format, ...) + G_GNUC_PRINTF(2, 3); + +void gdb_feature_builder_append_reg(const GDBFeatureBuilder *builder, + const char *name, + int bitsize, + const char *type, + const char *group); + +void gdb_feature_builder_end(const GDBFeatureBuilder *builder); + const GDBFeature *gdb_find_static_feature(const char *xmlname); void gdb_set_stop_cpu(CPUState *cpu); diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 293e8ea439..32e88de431 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -414,6 +414,65 @@ static const char *get_feature_xml(const char *p, const char **newp, return name ? gdb_static_features[i].xml : NULL; } +void gdb_feature_builder_init(GDBFeatureBuilder *builder, GDBFeature *feature, + const char *name, const char *xmlname) +{ + char *header = g_markup_printf_escaped( + "<?xml version=\"1.0\"?>" + "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">" + "<feature name=\"%s\">", + name); + + builder->feature = feature; + builder->xml = g_ptr_array_new(); + g_ptr_array_add(builder->xml, header); + feature->xmlname = xmlname; + feature->num_regs = 0; +} + +void gdb_feature_builder_append_tag(const GDBFeatureBuilder *builder, + const char *format, ...) +{ + va_list ap; + va_start(ap, format); + g_ptr_array_add(builder->xml, g_markup_vprintf_escaped(format, ap)); + va_end(ap); +} + +void gdb_feature_builder_append_reg(const GDBFeatureBuilder *builder, + const char *name, + int bitsize, + const char *type, + const char *group) +{ + if (group) { + gdb_feature_builder_append_tag( + builder, + "<reg name=\"%s\" bitsize=\"%d\" type=\"%s\" group=\"%s\"/>", + name, bitsize, type, group); + } else { + gdb_feature_builder_append_tag( + builder, "<reg name=\"%s\" bitsize=\"%d\" type=\"%s\"/>", + name, bitsize, type); + } + + builder->feature->num_regs++; +} + +void gdb_feature_builder_end(const GDBFeatureBuilder *builder) +{ + g_ptr_array_add(builder->xml, (void *)"</feature>"); + g_ptr_array_add(builder->xml, NULL); + + builder->feature->xml = g_strjoinv(NULL, (void *)builder->xml->pdata); + + for (guint i = 0; i < builder->xml->len - 2; i++) { + g_free(g_ptr_array_index(builder->xml, i)); + } + + g_ptr_array_free(builder->xml, TRUE); +} + const GDBFeature *gdb_find_static_feature(const char *xmlname) { const GDBFeature *feature; -- 2.41.0