/* Definitions for using variables in GNU Make.
-Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
-1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-2010 Free Software Foundation, Inc.
+Copyright (C) 1988-2013 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify it under the
Increasing numeric values signify less-overridable definitions. */
enum variable_origin
{
- o_default, /* Variable from the default set. */
- o_env, /* Variable from environment. */
- o_file, /* Variable given in a makefile. */
- o_env_override, /* Variable from environment, if -e. */
- o_command, /* Variable given by user. */
- o_override, /* Variable from an `override' directive. */
- o_automatic, /* Automatic variable -- cannot be set. */
- o_invalid /* Core dump time. */
+ o_default, /* Variable from the default set. */
+ o_env, /* Variable from environment. */
+ o_file, /* Variable given in a makefile. */
+ o_env_override, /* Variable from environment, if -e. */
+ o_command, /* Variable given by user. */
+ o_override, /* Variable from an 'override' directive. */
+ o_automatic, /* Automatic variable -- cannot be set. */
+ o_invalid /* Core dump time. */
};
enum variable_flavor
{
f_bogus, /* Bogus (error) */
- f_simple, /* Simple definition (:=) */
+ f_simple, /* Simple definition (:= or ::=) */
f_recursive, /* Recursive definition (=) */
f_append, /* Appending definition (+=) */
- f_conditional /* Conditional definition (?=) */
+ f_conditional, /* Conditional definition (?=) */
+ f_shell /* Shell assignment (!=) */
};
/* Structure that represents one variable definition.
Each bucket of the hash table is a chain of these,
- chained through `next'. */
+ chained through 'next'. */
#define EXP_COUNT_BITS 15 /* This gets all the bitfields into 32 bits */
#define EXP_COUNT_MAX ((1<<EXP_COUNT_BITS)-1)
struct variable
{
- char *name; /* Variable name. */
- int length; /* strlen (name) */
- char *value; /* Variable value. */
- struct floc fileinfo; /* Where the variable was defined. */
- unsigned int recursive:1; /* Gets recursively re-evaluated. */
- unsigned int append:1; /* Nonzero if an appending target-specific
+ char *name; /* Variable name. */
+ char *value; /* Variable value. */
+ gmk_floc fileinfo; /* Where the variable was defined. */
+ int length; /* strlen (name) */
+ unsigned int recursive:1; /* Gets recursively re-evaluated. */
+ unsigned int append:1; /* Nonzero if an appending target-specific
variable. */
unsigned int conditional:1; /* Nonzero if set with a ?=. */
- unsigned int per_target:1; /* Nonzero if a target-specific variable. */
+ unsigned int per_target:1; /* Nonzero if a target-specific variable. */
unsigned int special:1; /* Nonzero if this is a special variable. */
unsigned int exportable:1; /* Nonzero if the variable _could_ be
exported. */
- unsigned int expanding:1; /* Nonzero if currently being expanded. */
+ unsigned int expanding:1; /* Nonzero if currently being expanded. */
unsigned int private_var:1; /* Nonzero avoids inheritance of this
target-specific variable. */
unsigned int exp_count:EXP_COUNT_BITS;
/* If >1, allow this many self-referential
expansions. */
enum variable_flavor
- flavor ENUM_BITFIELD (3); /* Variable flavor. */
+ flavor ENUM_BITFIELD (3); /* Variable flavor. */
enum variable_origin
- origin ENUM_BITFIELD (3); /* Variable origin. */
+ origin ENUM_BITFIELD (3); /* Variable origin. */
enum variable_export
{
- v_export, /* Export this variable. */
- v_noexport, /* Don't export this variable. */
- v_ifset, /* Export it if it has a non-default value. */
- v_default /* Decide in target_environment. */
+ v_export, /* Export this variable. */
+ v_noexport, /* Don't export this variable. */
+ v_ifset, /* Export it if it has a non-default value. */
+ v_default /* Decide in target_environment. */
} export ENUM_BITFIELD (2);
};
struct variable_set
{
- struct hash_table table; /* Hash table of variables. */
+ struct hash_table table; /* Hash table of variables. */
};
/* Structure that represents a list of variable sets. */
struct variable_set_list
{
- struct variable_set_list *next; /* Link in the chain. */
- struct variable_set *set; /* Variable set. */
+ struct variable_set_list *next; /* Link in the chain. */
+ struct variable_set *set; /* Variable set. */
int next_is_parent; /* True if next is a parent target. */
};
char *variable_expand (const char *line);
char *variable_expand_for_file (const char *line, struct file *file);
char *allocated_variable_expand_for_file (const char *line, struct file *file);
-#define allocated_variable_expand(line) \
+#define allocated_variable_expand(line) \
allocated_variable_expand_for_file (line, (struct file *) 0)
char *expand_argument (const char *str, const char *end);
char *variable_expand_string (char *line, const char *string, long length);
const char *replace, const char *pattern_percent,
const char *replace_percent);
char *patsubst_expand (char *o, const char *text, char *pattern, char *replace);
+char *func_shell_base (char *o, char **argv, int trim_newlines);
+
/* expand.c */
char *recursively_expand_for_file (struct variable *v, struct file *file);
void define_automatic_variables (void);
void initialize_file_variables (struct file *file, int reading);
void print_file_variables (const struct file *file);
-void print_variable_set (struct variable_set *set, char *prefix);
+void print_file_variables (const struct file *file);
+void print_target_variables (const struct file *file);
void merge_variable_set_lists (struct variable_set_list **to_list,
struct variable_set_list *from_list);
-struct variable *do_variable_definition (const struct floc *flocp,
+struct variable *do_variable_definition (const gmk_floc *flocp,
const char *name, const char *value,
enum variable_origin origin,
enum variable_flavor flavor,
int target_var);
char *parse_variable_definition (const char *line,
- enum variable_flavor *flavor);
+ struct variable *v);
struct variable *assign_variable_definition (struct variable *v, char *line);
-struct variable *try_variable_definition (const struct floc *flocp, char *line,
+struct variable *try_variable_definition (const gmk_floc *flocp, char *line,
enum variable_origin origin,
int target_var);
void init_hash_global_variable_set (void);
void hash_init_function_table (void);
+void define_new_function(const gmk_floc *flocp, const char *name,
+ unsigned int min, unsigned int max, unsigned int flags,
+ gmk_func_ptr func);
struct variable *lookup_variable (const char *name, unsigned int length);
struct variable *lookup_variable_in_set (const char *name, unsigned int length,
const struct variable_set *set);
enum variable_origin origin,
int recursive,
struct variable_set *set,
- const struct floc *flocp);
+ const gmk_floc *flocp);
/* Define a variable in the current variable set. */
#define warn_undefined(n,l) do{\
if (warn_undefined_variables_flag) \
error (reading_file, \
- _("warning: undefined variable `%.*s'"), \
+ _("warning: undefined variable '%.*s'"), \
(int)(l), (n)); \
}while(0)
extern int export_all_variables;
#define MAKELEVEL_NAME "MAKELEVEL"
-#define MAKELEVEL_LENGTH (sizeof (MAKELEVEL_NAME) - 1)
+#define MAKELEVEL_LENGTH (CSTRLEN (MAKELEVEL_NAME))
projects / platform / upstream / make.git / blobdiff