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add -fdump-analysis to dump type information to json

Browse Source 
This commit adds -fdump-analysis which creates
a `$NAME-analysis.json` file with all of the finished
semantic analysis that the stage1 compiler produced.
It contains types, packages, declarations, and files.

This is an initial implementation; some data will be
missing. However it's easy to improve the implementation,
which is in `src/dump_analysis.cpp`.

The next step for #21 will be to create Zig code which parses
this json file and creates user-facing HTML documentation.

This feature has other uses, however; for example, it could
be used for IDE integration features until the self-hosted
compiler is available.
This commit is contained in:
Andrew Kelley 2019-10-03 17:58:22 -04:00
parent 7640bec8e0
commit 59ac7b91da
No known key found for this signature in database
GPG Key ID: 7C5F548F728501A9
10 changed files with 829 additions and 131 deletions
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2
CMakeLists.txt
View File

@ -443,6 +443,7 @@ set(ZIG_SOURCES
"${CMAKE_SOURCE_DIR}/src/cache_hash.cpp"
"${CMAKE_SOURCE_DIR}/src/codegen.cpp"
"${CMAKE_SOURCE_DIR}/src/compiler.cpp"
"${CMAKE_SOURCE_DIR}/src/dump_analysis.cpp"
"${CMAKE_SOURCE_DIR}/src/errmsg.cpp"
"${CMAKE_SOURCE_DIR}/src/error.cpp"
"${CMAKE_SOURCE_DIR}/src/glibc.cpp"
@ -453,7 +454,6 @@ set(ZIG_SOURCES
"${CMAKE_SOURCE_DIR}/src/os.cpp"
"${CMAKE_SOURCE_DIR}/src/parser.cpp"
"${CMAKE_SOURCE_DIR}/src/range_set.cpp"
"${CMAKE_SOURCE_DIR}/src/stack_report.cpp"
"${CMAKE_SOURCE_DIR}/src/target.cpp"
"${CMAKE_SOURCE_DIR}/src/tokenizer.cpp"
"${CMAKE_SOURCE_DIR}/src/translate_c.cpp"

7
src/all_types.hpp
View File

@ -1300,6 +1300,12 @@ struct ZigTypeEnum {
uint32_t type_ptr_hash(const ZigType *ptr);
bool type_ptr_eql(const ZigType *a, const ZigType *b);
uint32_t pkg_ptr_hash(const ZigPackage *ptr);
bool pkg_ptr_eql(const ZigPackage *a, const ZigPackage *b);
uint32_t tld_ptr_hash(const Tld *ptr);
bool tld_ptr_eql(const Tld *a, const Tld *b);
struct ZigTypeUnion {
AstNode *decl_node;
TypeUnionField *fields;
@ -2056,6 +2062,7 @@ struct CodeGen {
bool have_dynamic_link; // this is whether the final thing will be dynamically linked. see also is_dynamic
bool have_stack_probing;
bool function_sections;
bool enable_dump_analysis;
Buf *mmacosx_version_min;
Buf *mios_version_min;

16
src/analyze.cpp
View File

@ -7303,6 +7303,22 @@ bool type_ptr_eql(const ZigType *a, const ZigType *b) {
return a == b;
}
uint32_t pkg_ptr_hash(const ZigPackage *ptr) {
return hash_ptr((void*)ptr);
}
bool pkg_ptr_eql(const ZigPackage *a, const ZigPackage *b) {
return a == b;
}
uint32_t tld_ptr_hash(const Tld *ptr) {
return hash_ptr((void*)ptr);
}
bool tld_ptr_eql(const Tld *a, const Tld *b) {
return a == b;
}
ConstExprValue *get_builtin_value(CodeGen *codegen, const char *name) {
Tld *tld = get_container_scope(codegen->compile_var_import)->decl_table.get(buf_create_from_str(name));
resolve_top_level_decl(codegen, tld, nullptr, false);

29
src/codegen.cpp
View File

@ -20,6 +20,7 @@
#include "util.hpp"
#include "zig_llvm.h"
#include "userland.h"
#include "dump_analysis.hpp"
#include <stdio.h>
#include <errno.h>
@ -1724,7 +1725,7 @@ static LLVMValueRef ir_llvm_value(CodeGen *g, IrInstruction *instruction) {
}
ATTRIBUTE_NORETURN
static void report_errors_and_exit(CodeGen *g) {
void codegen_report_errors_and_exit(CodeGen *g) {
assert(g->errors.length != 0);
for (size_t i = 0; i < g->errors.length; i += 1) {
ErrorMsg *err = g->errors.at(i);
@ -1735,7 +1736,7 @@ static void report_errors_and_exit(CodeGen *g) {
static void report_errors_and_maybe_exit(CodeGen *g) {
if (g->errors.length != 0) {
report_errors_and_exit(g);
codegen_report_errors_and_exit(g);
}
}
@ -1745,7 +1746,7 @@ static void give_up_with_c_abi_error(CodeGen *g, AstNode *source_node) {
buf_sprintf("TODO: support C ABI for more targets. https://github.com/ziglang/zig/issues/1481"));
add_error_note(g, msg, source_node,
buf_sprintf("pointers, integers, floats, bools, and enums work on all targets"));
report_errors_and_exit(g);
codegen_report_errors_and_exit(g);
}
static LLVMValueRef build_alloca(CodeGen *g, ZigType *type_entry, const char *name, uint32_t alignment) {
@ -3456,7 +3457,7 @@ static bool value_is_all_undef(CodeGen *g, ConstExprValue *const_val) {
Error err;
if (const_val->special == ConstValSpecialLazy &&
(err = ir_resolve_lazy(g, nullptr, const_val)))
report_errors_and_exit(g);
codegen_report_errors_and_exit(g);
switch (const_val->special) {
case ConstValSpecialLazy:
@ -4253,7 +4254,7 @@ static LLVMValueRef ir_render_struct_field_ptr(CodeGen *g, IrExecutable *executa
ZigType *struct_type = (struct_ptr_type->id == ZigTypeIdPointer) ?
struct_ptr_type->data.pointer.child_type : struct_ptr_type;
if ((err = type_resolve(g, struct_type, ResolveStatusLLVMFull)))
report_errors_and_exit(g);
codegen_report_errors_and_exit(g);
assert(field->gen_index != SIZE_MAX);
return LLVMBuildStructGEP(g->builder, struct_ptr, (unsigned)field->gen_index, "");
@ -6625,7 +6626,7 @@ static LLVMValueRef gen_const_val(CodeGen *g, ConstExprValue *const_val, const c
check: switch (const_val->special) {
case ConstValSpecialLazy:
if ((err = ir_resolve_lazy(g, nullptr, const_val))) {
report_errors_and_exit(g);
codegen_report_errors_and_exit(g);
}
goto check;
case ConstValSpecialRuntime:
@ -10157,6 +10158,7 @@ static Error check_cache(CodeGen *g, Buf *manifest_dir, Buf *digest) {
cache_bool(ch, g->have_stack_probing);
cache_bool(ch, g->is_dummy_so);
cache_bool(ch, g->function_sections);
cache_bool(ch, g->enable_dump_analysis);
cache_buf_opt(ch, g->mmacosx_version_min);
cache_buf_opt(ch, g->mios_version_min);
cache_usize(ch, g->version_major);
@ -10338,6 +10340,21 @@ void codegen_build_and_link(CodeGen *g) {
gen_h_file(g);
}
}
if (g->enable_dump_analysis) {
const char *analysis_json_filename = buf_ptr(buf_sprintf("%s" OS_SEP "%s-analysis.json",
buf_ptr(g->output_dir), buf_ptr(g->root_out_name)));
FILE *f = fopen(analysis_json_filename, "wb");
if (f == nullptr) {
fprintf(stderr, "Unable to open '%s': %s\n", analysis_json_filename, strerror(errno));
exit(1);
}
zig_print_analysis_dump(g, f);
if (fclose(f) != 0) {
fprintf(stderr, "Unable to write '%s': %s\n", analysis_json_filename, strerror(errno));
exit(1);
}
}
// If we're outputting assembly or llvm IR we skip linking.
// If we're making a library or executable we must link.

2
src/codegen.hpp
View File

@ -64,4 +64,6 @@ void codegen_release_caches(CodeGen *codegen);
bool codegen_fn_has_err_ret_tracing_arg(CodeGen *g, ZigType *return_type);
bool codegen_fn_has_err_ret_tracing_stack(CodeGen *g, ZigFn *fn, bool is_async);
void codegen_report_errors_and_exit(CodeGen *g);
#endif

769
src/dump_analysis.cpp Normal file
View File

@ -0,0 +1,769 @@
/*
* Copyright (c) 2019 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "dump_analysis.hpp"
#include "compiler.hpp"
#include "analyze.hpp"
#include "config.h"
#include "ir.hpp"
#include "codegen.hpp"
enum JsonWriterState {
JsonWriterStateInvalid,
JsonWriterStateValue,
JsonWriterStateArrayStart,
JsonWriterStateArray,
JsonWriterStateObjectStart,
JsonWriterStateObject,
};
#define JSON_MAX_DEPTH 10
struct JsonWriter {
size_t state_index;
FILE *f;
const char *one_indent;
const char *nl;
JsonWriterState state[JSON_MAX_DEPTH];
};
static void jw_init(JsonWriter *jw, FILE *f, const char *one_indent, const char *nl) {
jw->state_index = 1;
jw->f = f;
jw->one_indent = one_indent;
jw->nl = nl;
jw->state[0] = JsonWriterStateInvalid;
jw->state[1] = JsonWriterStateValue;
}
static void jw_nl_indent(JsonWriter *jw) {
assert(jw->state_index >= 1);
fprintf(jw->f, "%s", jw->nl);
for (size_t i = 0; i < jw->state_index - 1; i += 1) {
fprintf(jw->f, jw->one_indent);
}
}
static void jw_push_state(JsonWriter *jw, JsonWriterState state) {
jw->state_index += 1;
assert(jw->state_index < JSON_MAX_DEPTH);
jw->state[jw->state_index] = state;
}
static void jw_pop_state(JsonWriter *jw) {
assert(jw->state_index != 0);
jw->state_index -= 1;
}
static void jw_begin_array(JsonWriter *jw) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
fprintf(jw->f, "[");
jw->state[jw->state_index] = JsonWriterStateArrayStart;
}
static void jw_begin_object(JsonWriter *jw) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
fprintf(jw->f, "{");
jw->state[jw->state_index] = JsonWriterStateObjectStart;
}
static void jw_array_elem(JsonWriter *jw) {
switch (jw->state[jw->state_index]) {
case JsonWriterStateInvalid:
case JsonWriterStateValue:
case JsonWriterStateObjectStart:
case JsonWriterStateObject:
zig_unreachable();
case JsonWriterStateArray:
fprintf(jw->f, ",");
// fallthrough
case JsonWriterStateArrayStart:
jw->state[jw->state_index] = JsonWriterStateArray;
jw_push_state(jw, JsonWriterStateValue);
jw_nl_indent(jw);
return;
}
zig_unreachable();
}
static void jw_write_escaped_string(JsonWriter *jw, const char *s) {
fprintf(jw->f, "\"");
for (;; s += 1) {
switch (*s) {
case 0:
fprintf(jw->f, "\"");
return;
case '"':
fprintf(jw->f, "\\\"");
continue;
case '\t':
fprintf(jw->f, "\\t");
continue;
case '\r':
fprintf(jw->f, "\\r");
continue;
case '\n':
fprintf(jw->f, "\\n");
continue;
case '\b':
fprintf(jw->f, "\\b");
continue;
case '\f':
fprintf(jw->f, "\\f");
continue;
case '\\':
fprintf(jw->f, "\\\\");
continue;
default:
fprintf(jw->f, "%c", *s);
continue;
}
}
}
static void jw_object_field(JsonWriter *jw, const char *name) {
switch (jw->state[jw->state_index]) {
case JsonWriterStateInvalid:
case JsonWriterStateValue:
case JsonWriterStateArray:
case JsonWriterStateArrayStart:
zig_unreachable();
case JsonWriterStateObject:
fprintf(jw->f, ",");
// fallthrough
case JsonWriterStateObjectStart:
jw->state[jw->state_index] = JsonWriterStateObject;
jw_push_state(jw, JsonWriterStateValue);
jw_nl_indent(jw);
jw_write_escaped_string(jw, name);
fprintf(jw->f, ": ");
return;
}
zig_unreachable();
}
static void jw_end_array(JsonWriter *jw) {
switch (jw->state[jw->state_index]) {
case JsonWriterStateInvalid:
case JsonWriterStateValue:
case JsonWriterStateObjectStart:
case JsonWriterStateObject:
zig_unreachable();
case JsonWriterStateArrayStart:
fprintf(jw->f, "]");
jw_pop_state(jw);
return;
case JsonWriterStateArray:
jw_nl_indent(jw);
jw_pop_state(jw);
fprintf(jw->f, "]");
return;
}
zig_unreachable();
}
static void jw_end_object(JsonWriter *jw) {
switch (jw->state[jw->state_index]) {
case JsonWriterStateInvalid:
zig_unreachable();
case JsonWriterStateValue:
zig_unreachable();
case JsonWriterStateArray:
zig_unreachable();
case JsonWriterStateArrayStart:
zig_unreachable();
case JsonWriterStateObjectStart:
fprintf(jw->f, "}");
jw_pop_state(jw);
return;
case JsonWriterStateObject:
jw_nl_indent(jw);
jw_pop_state(jw);
fprintf(jw->f, "}");
return;
}
zig_unreachable();
}
static void jw_null(JsonWriter *jw) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
fprintf(jw->f, "null");
jw_pop_state(jw);
}
static void jw_bool(JsonWriter *jw, bool x) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
if (x) {
fprintf(jw->f, "true");
} else {
fprintf(jw->f, "false");
}
jw_pop_state(jw);
}
static void jw_int(JsonWriter *jw, int64_t x) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
if (x > 4503599627370496 || x < -4503599627370496) {
fprintf(jw->f, "\"%" ZIG_PRI_i64 "\"", x);
} else {
fprintf(jw->f, "%" ZIG_PRI_i64, x);
}
jw_pop_state(jw);
}
static void jw_string(JsonWriter *jw, const char *s) {
assert(jw->state[jw->state_index] == JsonWriterStateValue);
jw_write_escaped_string(jw, s);
jw_pop_state(jw);
}
static void tree_print(FILE *f, ZigType *ty, size_t indent);
static void pretty_print_bytes(FILE *f, double n) {
if (n > 1024.0 * 1024.0 * 1024.0) {
fprintf(f, "%.02f GiB", n / 1024.0 / 1024.0 / 1024.0);
return;
}
if (n > 1024.0 * 1024.0) {
fprintf(f, "%.02f MiB", n / 1024.0 / 1024.0);
return;
}
if (n > 1024.0) {
fprintf(f, "%.02f KiB", n / 1024.0);
return;
}
fprintf(f, "%.02f bytes", n );
return;
}
static int compare_type_abi_sizes_desc(const void *a, const void *b) {
uint64_t size_a = (*(ZigType * const*)(a))->abi_size;
uint64_t size_b = (*(ZigType * const*)(b))->abi_size;
if (size_a > size_b)
return -1;
if (size_a < size_b)
return 1;
return 0;
}
static void start_child(FILE *f, size_t indent) {
fprintf(f, "\n");
for (size_t i = 0; i < indent; i += 1) {
fprintf(f, " ");
}
}
static void start_peer(FILE *f, size_t indent) {
fprintf(f, ",\n");
for (size_t i = 0; i < indent; i += 1) {
fprintf(f, " ");
}
}
static void tree_print_struct(FILE *f, ZigType *struct_type, size_t indent) {
ZigList<ZigType *> children = {};
uint64_t sum_from_fields = 0;
for (size_t i = 0; i < struct_type->data.structure.src_field_count; i += 1) {
TypeStructField *field = &struct_type->data.structure.fields[i];
children.append(field->type_entry);
sum_from_fields += field->type_entry->abi_size;
}
qsort(children.items, children.length, sizeof(ZigType *), compare_type_abi_sizes_desc);
start_peer(f, indent);
fprintf(f, "\"padding\": \"%" ZIG_PRI_u64 "\"", struct_type->abi_size - sum_from_fields);
start_peer(f, indent);
fprintf(f, "\"fields\": [");
for (size_t i = 0; i < children.length; i += 1) {
if (i == 0) {
start_child(f, indent + 1);
} else {
start_peer(f, indent + 1);
}
fprintf(f, "{");
ZigType *child_type = children.at(i);
tree_print(f, child_type, indent + 2);
start_child(f, indent + 1);
fprintf(f, "}");
}
start_child(f, indent);
fprintf(f, "]");
}
static void tree_print(FILE *f, ZigType *ty, size_t indent) {
start_child(f, indent);
fprintf(f, "\"type\": \"%s\"", buf_ptr(&ty->name));
start_peer(f, indent);
fprintf(f, "\"sizef\": \"");
pretty_print_bytes(f, ty->abi_size);
fprintf(f, "\"");
start_peer(f, indent);
fprintf(f, "\"size\": \"%" ZIG_PRI_usize "\"", ty->abi_size);
switch (ty->id) {
case ZigTypeIdFnFrame:
return tree_print_struct(f, ty->data.frame.locals_struct, indent);
case ZigTypeIdStruct:
return tree_print_struct(f, ty, indent);
default:
start_child(f, indent);
return;
}
}
void zig_print_stack_report(CodeGen *g, FILE *f) {
if (g->largest_frame_fn == nullptr) {
fprintf(f, "{\"error\": \"No async function frames in entire compilation.\"}\n");
return;
}
fprintf(f, "{");
tree_print(f, g->largest_frame_fn->frame_type, 1);
start_child(f, 0);
fprintf(f, "}\n");
}
struct AnalDumpCtx {
CodeGen *g;
JsonWriter jw;
ZigList<ZigType *> type_list;
HashMap<const ZigType *, uint32_t, type_ptr_hash, type_ptr_eql> type_map;
ZigList<ZigPackage *> pkg_list;
HashMap<const ZigPackage *, uint32_t, pkg_ptr_hash, pkg_ptr_eql> pkg_map;
ZigList<Buf *> file_list;
HashMap<Buf *, uint32_t, buf_hash, buf_eql_buf> file_map;
ZigList<Tld *> decl_list;
HashMap<const Tld *, uint32_t, tld_ptr_hash, tld_ptr_eql> decl_map;
};
static uint32_t anal_dump_get_type_id(AnalDumpCtx *ctx, ZigType *ty);
static void anal_dump_value(AnalDumpCtx *ctx, AstNode *source_node, ZigType *ty, ConstExprValue *value);
static void anal_dump_poke_value(AnalDumpCtx *ctx, AstNode *source_node, ZigType *ty, ConstExprValue *value) {
Error err;
if (value->type != ty) {
return;
}
if ((err = ir_resolve_lazy(ctx->g, source_node, value))) {
codegen_report_errors_and_exit(ctx->g);
}
if (value->special == ConstValSpecialUndef) {
return;
}
if (value->special == ConstValSpecialRuntime) {
return;
}
switch (ty->id) {
case ZigTypeIdMetaType: {
ZigType *val_ty = value->data.x_type;
(void)anal_dump_get_type_id(ctx, val_ty);
return;
}
default:
return;
}
zig_unreachable();
}
static uint32_t anal_dump_get_type_id(AnalDumpCtx *ctx, ZigType *ty) {
uint32_t type_id = ctx->type_list.length;
auto existing_entry = ctx->type_map.put_unique(ty, type_id);
if (existing_entry == nullptr) {
ctx->type_list.append(ty);
} else {
type_id = existing_entry->value;
}
return type_id;
}
static uint32_t anal_dump_get_pkg_id(AnalDumpCtx *ctx, ZigPackage *pkg) {
assert(pkg != nullptr);
uint32_t pkg_id = ctx->pkg_list.length;
auto existing_entry = ctx->pkg_map.put_unique(pkg, pkg_id);
if (existing_entry == nullptr) {
ctx->pkg_list.append(pkg);
} else {
pkg_id = existing_entry->value;
}
return pkg_id;
}
static uint32_t anal_dump_get_file_id(AnalDumpCtx *ctx, Buf *file) {
uint32_t file_id = ctx->file_list.length;
auto existing_entry = ctx->file_map.put_unique(file, file_id);
if (existing_entry == nullptr) {
ctx->file_list.append(file);
} else {
file_id = existing_entry->value;
}
return file_id;
}
static uint32_t anal_dump_get_decl_id(AnalDumpCtx *ctx, Tld *tld) {
uint32_t decl_id = ctx->decl_list.length;
auto existing_entry = ctx->decl_map.put_unique(tld, decl_id);
if (existing_entry == nullptr) {
ctx->decl_list.append(tld);
if (tld->import != nullptr) {
(void)anal_dump_get_type_id(ctx, tld->import);
}
// poke the types
switch (tld->id) {
case TldIdVar: {
TldVar *tld_var = reinterpret_cast<TldVar *>(tld);
ZigVar *var = tld_var->var;
if (var != nullptr) {
(void)anal_dump_get_type_id(ctx, var->var_type);
if (var->const_value != nullptr) {
anal_dump_poke_value(ctx, var->decl_node, var->var_type, var->const_value);
}
}
break;
}
case TldIdFn: {
TldFn *tld_fn = reinterpret_cast<TldFn *>(tld);
ZigFn *fn = tld_fn->fn_entry;
if (fn != nullptr) {
(void)anal_dump_get_type_id(ctx, fn->type_entry);
}
break;
}
default:
break;
}
} else {
decl_id = existing_entry->value;
}
return decl_id;
}
static void anal_dump_type_ref(AnalDumpCtx *ctx, ZigType *ty) {
uint32_t type_id = anal_dump_get_type_id(ctx, ty);
jw_int(&ctx->jw, type_id);
}
static void anal_dump_pkg_ref(AnalDumpCtx *ctx, ZigPackage *pkg) {
uint32_t pkg_id = anal_dump_get_pkg_id(ctx, pkg);
jw_int(&ctx->jw, pkg_id);
}
static void anal_dump_file_ref(AnalDumpCtx *ctx, Buf *file) {
uint32_t file_id = anal_dump_get_file_id(ctx, file);
jw_int(&ctx->jw, file_id);
}
static void anal_dump_decl_ref(AnalDumpCtx *ctx, Tld *tld) {
uint32_t decl_id = anal_dump_get_decl_id(ctx, tld);
jw_int(&ctx->jw, decl_id);
}
static void anal_dump_pkg(AnalDumpCtx *ctx, ZigPackage *pkg) {
JsonWriter *jw = &ctx->jw;
jw_array_elem(jw);
jw_begin_object(jw);
jw_object_field(jw, "name");
jw_string(jw, buf_ptr(&pkg->pkg_path));
jw_object_field(jw, "file");
Buf full_path_buf = BUF_INIT;
os_path_join(&pkg->root_src_dir, &pkg->root_src_path, &full_path_buf);
Buf *resolve_paths[] = { &full_path_buf, };
Buf *resolved_path = buf_alloc();
*resolved_path = os_path_resolve(resolve_paths, 1);
anal_dump_file_ref(ctx, resolved_path);
auto import_entry = ctx->g->import_table.maybe_get(resolved_path);
if (!import_entry) {
fprintf(stderr, "due to a race condition or bug, files moved around during analysis\n");
exit(1);
}
jw_object_field(jw, "main");
anal_dump_type_ref(ctx, import_entry->value);
jw_object_field(jw, "table");
jw_begin_object(jw);
auto it = pkg->package_table.entry_iterator();
for (;;) {
auto *entry = it.next();
if (!entry)
break;
ZigPackage *child_pkg = entry->value;
if (child_pkg != nullptr) {
jw_object_field(jw, buf_ptr(entry->key));
anal_dump_pkg_ref(ctx, child_pkg);
}
}
jw_end_object(jw);
jw_end_object(jw);
}
static void anal_dump_decl(AnalDumpCtx *ctx, Tld *tld) {
JsonWriter *jw = &ctx->jw;
bool make_obj = tld->id == TldIdVar || tld->id == TldIdFn;
if (make_obj) {
jw_array_elem(jw);
jw_begin_object(jw);
jw_object_field(jw, "import");
anal_dump_type_ref(ctx, tld->import);
jw_object_field(jw, "line");
jw_int(jw, tld->source_node->line);
jw_object_field(jw, "col");
jw_int(jw, tld->source_node->column);
jw_object_field(jw, "name");
jw_string(jw, buf_ptr(tld->name));
}
switch (tld->id) {
case TldIdVar: {
TldVar *tld_var = reinterpret_cast<TldVar *>(tld);
ZigVar *var = tld_var->var;
if (var != nullptr) {
jw_object_field(jw, "kind");
if (var->src_is_const) {
jw_string(jw, "const");
} else {
jw_string(jw, "var");
}
if (var->is_thread_local) {
jw_object_field(jw, "threadlocal");
jw_bool(jw, true);
}
jw_object_field(jw, "type");
anal_dump_type_ref(ctx, var->var_type);
if (var->const_value != nullptr) {
jw_object_field(jw, "value");
anal_dump_value(ctx, var->decl_node, var->var_type, var->const_value);
}
}
break;
}
case TldIdFn: {
TldFn *tld_fn = reinterpret_cast<TldFn *>(tld);
ZigFn *fn = tld_fn->fn_entry;
if (fn != nullptr) {
jw_object_field(jw, "kind");
jw_string(jw, "const");
jw_object_field(jw, "type");
anal_dump_type_ref(ctx, fn->type_entry);
}
break;
}
default:
break;
}
if (make_obj) {
jw_end_object(jw);
}
}
static void anal_dump_file(AnalDumpCtx *ctx, Buf *file) {
JsonWriter *jw = &ctx->jw;
jw_string(jw, buf_ptr(file));
}
static void anal_dump_value(AnalDumpCtx *ctx, AstNode *source_node, ZigType *ty, ConstExprValue *value) {
Error err;
if (value->type != ty) {
jw_null(&ctx->jw);
return;
}
if ((err = ir_resolve_lazy(ctx->g, source_node, value))) {
codegen_report_errors_and_exit(ctx->g);
}
if (value->special == ConstValSpecialUndef) {
jw_string(&ctx->jw, "undefined");
return;
}
if (value->special == ConstValSpecialRuntime) {
jw_null(&ctx->jw);
return;
}
switch (ty->id) {
case ZigTypeIdMetaType: {
ZigType *val_ty = value->data.x_type;
anal_dump_type_ref(ctx, val_ty);
return;
}
default:
jw_null(&ctx->jw);
return;
}
zig_unreachable();
}
static void anal_dump_type(AnalDumpCtx *ctx, ZigType *ty) {
JsonWriter *jw = &ctx->jw;
jw_array_elem(jw);
jw_begin_object(jw);
jw_object_field(jw, "name");
jw_string(jw, buf_ptr(&ty->name));
jw_object_field(jw, "kind");
jw_int(jw, type_id_index(ty));
switch (ty->id) {
case ZigTypeIdStruct: {
if (ty->data.structure.is_slice) {
// TODO
break;
}
jw_object_field(jw, "decls");
jw_begin_array(jw);
ScopeDecls *decls_scope = ty->data.structure.decls_scope;
auto it = decls_scope->decl_table.entry_iterator();
for (;;) {
auto *entry = it.next();
if (!entry)
break;
Tld *tld = entry->value;
jw_array_elem(jw);
anal_dump_decl_ref(ctx, tld);
}
jw_end_array(jw);
if (ty->data.structure.root_struct != nullptr) {
Buf *path_buf = ty->data.structure.root_struct->path;
jw_object_field(jw, "file");
anal_dump_file_ref(ctx, path_buf);
}
break;
}
case ZigTypeIdFloat: {
jw_object_field(jw, "bits");
jw_int(jw, ty->data.floating.bit_count);
break;
}
default:
// TODO
break;
}
jw_end_object(jw);
}
void zig_print_analysis_dump(CodeGen *g, FILE *f) {
Error err;
AnalDumpCtx ctx = {};
ctx.g = g;
JsonWriter *jw = &ctx.jw;
jw_init(jw, f, " ", "\n");
ctx.type_map.init(16);
ctx.pkg_map.init(16);
ctx.file_map.init(16);
ctx.decl_map.init(16);
jw_begin_object(jw);
jw_object_field(jw, "typeKinds");
jw_begin_array(jw);
for (size_t i = 0; i < type_id_len(); i += 1) {
jw_array_elem(jw);
jw_string(jw, type_id_name(type_id_at_index(i)));
}
jw_end_array(jw);
jw_object_field(jw, "params");
jw_begin_object(jw);
{
jw_object_field(jw, "zigId");
Buf *compiler_id;
if ((err = get_compiler_id(&compiler_id))) {
fprintf(stderr, "Unable to determine compiler id: %s\n", err_str(err));
exit(1);
}
jw_string(jw, buf_ptr(compiler_id));
jw_object_field(jw, "zigVersion");
jw_string(jw, ZIG_VERSION_STRING);
jw_object_field(jw, "target");
Buf triple_buf = BUF_INIT;
target_triple_zig(&triple_buf, g->zig_target);
jw_string(jw, buf_ptr(&triple_buf));
}
jw_end_object(jw);
jw_object_field(jw, "rootPkg");
anal_dump_pkg_ref(&ctx, g->root_package);
jw_object_field(jw, "packages");
jw_begin_array(jw);
for (uint32_t i = 0; i < ctx.pkg_list.length; i += 1) {
anal_dump_pkg(&ctx, ctx.pkg_list.at(i));
}
jw_end_array(jw);
jw_object_field(jw, "types");
jw_begin_array(jw);
for (uint32_t i = 0; i < ctx.type_list.length; i += 1) {
ZigType *ty = ctx.type_list.at(i);
anal_dump_type(&ctx, ty);
}
jw_end_array(jw);
jw_object_field(jw, "decls");
jw_begin_array(jw);
for (uint32_t i = 0; i < ctx.decl_list.length; i += 1) {
Tld *decl = ctx.decl_list.at(i);
anal_dump_decl(&ctx, decl);
}
jw_end_array(jw);
jw_object_field(jw, "files");
jw_begin_array(jw);
for (uint32_t i = 0; i < ctx.file_list.length; i += 1) {
Buf *file = ctx.file_list.at(i);
jw_array_elem(jw);
anal_dump_file(&ctx, file);
}
jw_end_array(jw);
jw_end_object(jw);
}

5
src/stack_report.hpp → src/dump_analysis.hpp
View File

@ -5,12 +5,13 @@
* See http://opensource.org/licenses/MIT
*/
#ifndef ZIG_STACK_REPORT_HPP
#define ZIG_STACK_REPORT_HPP
#ifndef ZIG_DUMP_ANALYSIS_HPP
#define ZIG_DUMP_ANALYSIS_HPP
#include "all_types.hpp"
#include <stdio.h>
void zig_print_stack_report(CodeGen *g, FILE *f);
void zig_print_analysis_dump(CodeGen *g, FILE *f);
#endif

7
src/main.cpp
View File

@ -16,7 +16,7 @@
#include "libc_installation.hpp"
#include "userland.h"
#include "glibc.hpp"
#include "stack_report.hpp"
#include "dump_analysis.hpp"
#include <stdio.h>
@ -64,6 +64,7 @@ static int print_full_usage(const char *arg0, FILE *file, int return_code) {
" -fno-PIC disable Position Independent Code\n"
" -ftime-report print timing diagnostics\n"
" -fstack-report print stack size diagnostics\n"
" -fdump-analysis write analysis.json file for use with zig docs\n"
" --libc [file] Provide a file which specifies libc paths\n"
" --name [name] override output name\n"
" --output-dir [dir] override output directory (defaults to cwd)\n"
@ -479,6 +480,7 @@ int main(int argc, char **argv) {
size_t ver_patch = 0;
bool timing_info = false;
bool stack_report = false;
bool enable_dump_analysis = false;
const char *cache_dir = nullptr;
CliPkg *cur_pkg = allocate<CliPkg>(1);
BuildMode build_mode = BuildModeDebug;
@ -662,6 +664,8 @@ int main(int argc, char **argv) {
timing_info = true;
} else if (strcmp(arg, "-fstack-report") == 0) {
stack_report = true;
} else if (strcmp(arg, "-fdump-analysis") == 0) {
enable_dump_analysis = true;
} else if (strcmp(arg, "--enable-valgrind") == 0) {
valgrind_support = ValgrindSupportEnabled;
} else if (strcmp(arg, "--disable-valgrind") == 0) {
@ -1138,6 +1142,7 @@ int main(int argc, char **argv) {
g->enable_time_report = timing_info;
g->enable_stack_report = stack_report;
g->enable_dump_analysis = enable_dump_analysis;
codegen_set_out_name(g, buf_out_name);
codegen_set_lib_version(g, ver_major, ver_minor, ver_patch);
g->want_single_threaded = want_single_threaded;

2
src/os.hpp
View File

@ -47,6 +47,7 @@ extern const char *possible_ld_names[];
#if defined(ZIG_OS_WINDOWS)
#define ZIG_PRI_usize "I64u"
#define ZIG_PRI_i64 "I64d"
#define ZIG_PRI_u64 "I64u"
#define ZIG_PRI_llu "I64u"
#define ZIG_PRI_x64 "I64x"
@ -54,6 +55,7 @@ extern const char *possible_ld_names[];
#define ZIG_OS_SEP_CHAR '\\'
#else
#define ZIG_PRI_usize "zu"
#define ZIG_PRI_i64 PRId64
#define ZIG_PRI_u64 PRIu64
#define ZIG_PRI_llu "llu"
#define ZIG_PRI_x64 PRIx64

121
src/stack_report.cpp
View File

@ -1,121 +0,0 @@
/*
* Copyright (c) 2019 Andrew Kelley
*
* This file is part of zig, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "stack_report.hpp"
static void tree_print(FILE *f, ZigType *ty, size_t indent);
static void pretty_print_bytes(FILE *f, double n) {
if (n > 1024.0 * 1024.0 * 1024.0) {
fprintf(f, "%.02f GiB", n / 1024.0 / 1024.0 / 1024.0);
return;
}
if (n > 1024.0 * 1024.0) {
fprintf(f, "%.02f MiB", n / 1024.0 / 1024.0);
return;
}
if (n > 1024.0) {
fprintf(f, "%.02f KiB", n / 1024.0);
return;
}
fprintf(f, "%.02f bytes", n );
return;
}
static int compare_type_abi_sizes_desc(const void *a, const void *b) {
uint64_t size_a = (*(ZigType * const*)(a))->abi_size;
uint64_t size_b = (*(ZigType * const*)(b))->abi_size;
if (size_a > size_b)
return -1;
if (size_a < size_b)
return 1;
return 0;
}
static void start_child(FILE *f, size_t indent) {
fprintf(f, "\n");
for (size_t i = 0; i < indent; i += 1) {
fprintf(f, " ");
}
}
static void start_peer(FILE *f, size_t indent) {
fprintf(f, ",\n");
for (size_t i = 0; i < indent; i += 1) {
fprintf(f, " ");
}
}
static void tree_print_struct(FILE *f, ZigType *struct_type, size_t indent) {
ZigList<ZigType *> children = {};
uint64_t sum_from_fields = 0;
for (size_t i = 0; i < struct_type->data.structure.src_field_count; i += 1) {
TypeStructField *field = &struct_type->data.structure.fields[i];
children.append(field->type_entry);
sum_from_fields += field->type_entry->abi_size;
}
qsort(children.items, children.length, sizeof(ZigType *), compare_type_abi_sizes_desc);
start_peer(f, indent);
fprintf(f, "\"padding\": \"%" ZIG_PRI_u64 "\"", struct_type->abi_size - sum_from_fields);
start_peer(f, indent);
fprintf(f, "\"fields\": [");
for (size_t i = 0; i < children.length; i += 1) {
if (i == 0) {
start_child(f, indent + 1);
} else {
start_peer(f, indent + 1);
}
fprintf(f, "{");
ZigType *child_type = children.at(i);
tree_print(f, child_type, indent + 2);
start_child(f, indent + 1);
fprintf(f, "}");
}
start_child(f, indent);
fprintf(f, "]");
}
static void tree_print(FILE *f, ZigType *ty, size_t indent) {
start_child(f, indent);
fprintf(f, "\"type\": \"%s\"", buf_ptr(&ty->name));
start_peer(f, indent);
fprintf(f, "\"sizef\": \"");
pretty_print_bytes(f, ty->abi_size);
fprintf(f, "\"");
start_peer(f, indent);
fprintf(f, "\"size\": \"%" ZIG_PRI_usize "\"", ty->abi_size);
switch (ty->id) {
case ZigTypeIdFnFrame:
return tree_print_struct(f, ty->data.frame.locals_struct, indent);
case ZigTypeIdStruct:
return tree_print_struct(f, ty, indent);
default:
start_child(f, indent);
return;
}
}
void zig_print_stack_report(CodeGen *g, FILE *f) {
if (g->largest_frame_fn == nullptr) {
fprintf(f, "{\"error\": \"No async function frames in entire compilation.\"}\n");
return;
}
fprintf(f, "{");
tree_print(f, g->largest_frame_fn->frame_type, 1);
start_child(f, 0);
fprintf(f, "}\n");
}