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ruby--ruby/mini_builtin.c

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Removed BOM [ci skip]
2019-11-07 23:21:29 -05:00
#include "internal.h"
support builtin features with Ruby and C. Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
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#include "vm_core.h"
#include "iseq.h"
#include "builtin.h"
// include from miniinits.c
static const char *
read_file(const char *fname, size_t *psize)
{
struct stat st;
char *code;
FILE *fp;
if (stat(fname, &st) != 0) {
rb_bug("stat fails: %s", fname);
}
size_t fsize = st.st_size;
if ((code = malloc(fsize + 1)) == NULL) {
rb_bug("can't allocate memory: %s (%d)", fname, (int)fsize);
}
if ((fp = fopen(fname, "rb")) == NULL) {
rb_bug("can't open file: %s", fname);
}
size_t read_size = fread(code, 1, fsize, fp);
if (read_size != fsize) {
rb_bug("can't read file enough: %s (expect %d but was %d)", fname, (int)fsize, (int)read_size);
}
code[fsize] = 0;
*psize = fsize;
return code;
}
static struct st_table *loaded_builtin_table;
don't embed full-path. miniruby load *.rb from srcdir. To specify file path, tool/mk_builtin_loader.rb embed full path of each *.rb file. However it prevent to pre-generation of required files for tarball. This patch generate srcdir/*.rb from __FILE__ information.
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static char srcdir[0x200];
static const char fname[] = "mini_builtin.c";
static const char *
feature_path(const char *name)
{
static char path[0x200];
snprintf(path, 0x200-1, "%s%s.rb", srcdir, name);
// fprintf(stderr, "srcdir:%s, path:%s, PATH_SEP_CHAR:%c\n", srcdir, path, PATH_SEP_CHAR);
return path;
}
support builtin features with Ruby and C. Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
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void
don't embed full-path. miniruby load *.rb from srcdir. To specify file path, tool/mk_builtin_loader.rb embed full path of each *.rb file. However it prevent to pre-generation of required files for tarball. This patch generate srcdir/*.rb from __FILE__ information.
2019-11-08 16:55:38 -05:00
rb_load_with_builtin_functions(const char *feature_name, const struct rb_builtin_function *table)
support builtin features with Ruby and C. Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
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{
size_t fsize;
don't embed full-path. miniruby load *.rb from srcdir. To specify file path, tool/mk_builtin_loader.rb embed full path of each *.rb file. However it prevent to pre-generation of required files for tarball. This patch generate srcdir/*.rb from __FILE__ information.
2019-11-08 16:55:38 -05:00
const char *code = read_file(feature_path(feature_name), &fsize);
support builtin features with Ruby and C. Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
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VALUE code_str = rb_utf8_str_new_static(code, fsize);
VALUE name_str = rb_sprintf("<internal:%s>", feature_name);
rb_obj_hide(code_str);
rb_ast_t *ast = rb_parser_compile_string_path(rb_parser_new(), name_str, code_str, 1);
GET_VM()->builtin_function_table = table;
const rb_iseq_t *iseq = rb_iseq_new(&ast->body, name_str, name_str, Qnil, NULL, ISEQ_TYPE_TOP);
GET_VM()->builtin_function_table = NULL;
rb_ast_dispose(ast);
free((void *)code); // code_str becomes broken.
// register (loaded iseq will not be freed)
st_insert(loaded_builtin_table, (st_data_t)feature_name, (st_data_t)iseq);
rb_gc_register_mark_object((VALUE)iseq);
// eval
rb_iseq_eval(iseq);
}
static int
each_builtin_i(st_data_t key, st_data_t val, st_data_t dmy)
{
const char *feature = (const char *)key;
const rb_iseq_t *iseq = (const rb_iseq_t *)val;
rb_yield_values(2, rb_str_new2(feature), rb_iseqw_new(iseq));
return ST_CONTINUE;
}
static VALUE
each_builtin(VALUE self)
{
st_foreach(loaded_builtin_table, each_builtin_i, 0);
return Qnil;
}
void
Init_builtin(void)
{
rb_define_singleton_method(rb_cRubyVM, "each_builtin", each_builtin, 0);
loaded_builtin_table = st_init_strtable();
don't embed full-path. miniruby load *.rb from srcdir. To specify file path, tool/mk_builtin_loader.rb embed full path of each *.rb file. However it prevent to pre-generation of required files for tarball. This patch generate srcdir/*.rb from __FILE__ information.
2019-11-08 16:55:38 -05:00
// check srcdir
// assume __FILE__ encoding is ASCII compatible.
int pos = strlen(__FILE__) - strlen(fname);
if (pos < 0) rb_bug("strlen(%s) - strlen(%s) < 0", __FILE__, fname);
if (strcmp(__FILE__ + pos, fname) != 0) {
rb_bug("%s does not terminate with %s\n", __FILE__, fname);
}
strncpy(srcdir, __FILE__, 0x200-1);
srcdir[pos] = 0;
support builtin features with Ruby and C. Support loading builtin features written in Ruby, which implement with C builtin functions. [Feature #16254] Several features: (1) Load .rb file at boottime with native binary. Now, prelude.rb is loaded at boottime. However, this file is contained into the interpreter as a text format and we need to compile it. This patch contains a feature to load from binary format. (2) __builtin_func() in Ruby call func() written in C. In Ruby file, we can write `__builtin_func()` like method call. However this is not a method call, but special syntax to call a function `func()` written in C. C functions should be defined in a file (same compile unit) which load this .rb file. Functions (`func` in above example) should be defined with (a) 1st parameter: rb_execution_context_t *ec (b) rest parameters (0 to 15). (c) VALUE return type. This is very similar requirements for functions used by rb_define_method(), however `rb_execution_context_t *ec` is new requirement. (3) automatic C code generation from .rb files. tool/mk_builtin_loader.rb creates a C code to load .rb files needed by miniruby and ruby command. This script is run by BASERUBY, so *.rb should be written in BASERUBY compatbile syntax. This script load a .rb file and find all of __builtin_ prefix method calls, and generate a part of C code to export functions. tool/mk_builtin_binary.rb creates a C code which contains binary compiled Ruby files needed by ruby command.
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}
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