Adding upstream version 1:0.1.9998svn3589+dfsg.upstream/1%0.1.9998svn3589+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 551 insertions, 0 deletions

diff --git a/src/kmk/variable.h b/src/kmk/variable.h
new file mode 100644
index 0000000..db13b92
--- /dev/null
+++ b/src/kmk/variable.h
@@ -0,0 +1,551 @@
+/* Definitions for using variables in GNU Make.
+Copyright (C) 1988-2016 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
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "hash.h"
+#ifdef CONFIG_WITH_COMPILER
+# include "kmk_cc_exec.h"
+#endif
+
+/* Codes in a variable definition saying where the definition came from.
+   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.  */
+#ifdef CONFIG_WITH_LOCAL_VARIABLES
+    o_local,            /* Variable from an 'local' directive.  */
+#endif
+    o_automatic,        /* Automatic variable -- cannot be set.  */
+    o_invalid           /* Core dump time.  */
+  };
+
+enum variable_flavor
+  {
+    f_bogus,            /* Bogus (error) */
+    f_simple,           /* Simple definition (:= or ::=) */
+    f_recursive,        /* Recursive definition (=) */
+    f_append,           /* Appending definition (+=) */
+#ifdef CONFIG_WITH_PREPEND_ASSIGNMENT
+    f_prepend,          /* Prepending definition (>=) */
+#endif
+    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'.  */
+
+#define EXP_COUNT_BITS  15      /* This gets all the bitfields into 32 bits */
+#define EXP_COUNT_MAX   ((1<<EXP_COUNT_BITS)-1)
+#ifdef CONFIG_WITH_VALUE_LENGTH
+# define VAR_ALIGN_VALUE_ALLOC(len)  ( ((len) + (unsigned int)15) & ~(unsigned int)15 )
+#endif
+
+struct variable
+  {
+#ifndef CONFIG_WITH_STRCACHE2
+    char *name;                 /* Variable name.  */
+#else
+    const char *name;		/* Variable name (in varaible_strcache).  */
+#endif
+    char *value;                /* Variable value.  */
+    floc fileinfo;              /* Where the variable was defined.  */
+    int length;                 /* strlen (name) */
+#ifdef CONFIG_WITH_VALUE_LENGTH
+    unsigned int value_length;	/* The length of the value.  */
+    unsigned int value_alloc_len; /* The amount of memory we've actually allocated. */
+    /* FIXME: make lengths unsigned! */
+#endif
+    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 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 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.  */
+#ifdef CONFIG_WITH_RDONLY_VARIABLE_VALUE
+    unsigned int rdonly_val:1;  /* VALUE is read only (strcache/const). */
+#endif
+#ifdef KMK
+    unsigned int alias:1;       /* Nonzero if alias. VALUE points to the real variable. */
+    unsigned int aliased:1;     /* Nonzero if aliased. Cannot be undefined. */
+#endif
+    enum variable_flavor
+      flavor ENUM_BITFIELD (3); /* Variable flavor.  */
+    enum variable_origin
+#ifdef CONFIG_WITH_LOCAL_VARIABLES
+      origin ENUM_BITFIELD (4);	/* Variable origin.  */
+#else
+      origin ENUM_BITFIELD (3); /* Variable origin.  */
+#endif
+    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.  */
+      } export ENUM_BITFIELD (2);
+#ifdef CONFIG_WITH_COMPILER
+    int recursive_without_dollar : 2; /* 0 if undetermined, 1 if value has no '$' chars, -1 if it has. */
+#endif
+#ifdef CONFIG_WITH_MAKE_STATS
+    unsigned int changes;      /* Variable modification count.  */
+    unsigned int reallocs;     /* Realloc on value count.  */
+    unsigned int references;   /* Lookup count.  */
+    unsigned long long cTicksEvalVal; /* Number of ticks spend in cEvalVal. */
+#endif
+#if defined (CONFIG_WITH_COMPILER) || defined (CONFIG_WITH_MAKE_STATS)
+    unsigned int evalval_count; /* Times used with $(evalval ) or $(evalctx ) since last change. */
+    unsigned int expand_count;  /* Times expanded since last change (not to be confused with exp_count). */
+#endif
+#ifdef CONFIG_WITH_COMPILER
+    struct kmk_cc_evalprog *evalprog;     /* Pointer to evalval/evalctx "program". */
+    struct kmk_cc_expandprog *expandprog; /* Pointer to variable expand "program". */
+#endif
+  };
+
+/* Update statistics and invalidates optimizations when a variable changes. */
+#ifdef CONFIG_WITH_COMPILER
+# define VARIABLE_CHANGED(v) \
+  do { \
+      MAKE_STATS_2((v)->changes++); \
+      if ((v)->evalprog || (v)->expandprog) kmk_cc_variable_changed(v); \
+      (v)->expand_count = 0; \
+      (v)->evalval_count = 0; \
+      (v)->recursive_without_dollar = 0; \
+    } while (0)
+#else
+# define VARIABLE_CHANGED(v) MAKE_STATS_2((v)->changes++)
+#endif
+
+/* Macro that avoids a lot of CONFIG_WITH_COMPILER checks when
+   accessing recursive_without_dollar. */
+#ifdef CONFIG_WITH_COMPILER
+# define IS_VARIABLE_RECURSIVE_WITHOUT_DOLLAR(v) ((v)->recursive_without_dollar > 0)
+#else
+# define IS_VARIABLE_RECURSIVE_WITHOUT_DOLLAR(v) 0
+#endif
+
+
+
+/* Structure that represents a variable set.  */
+
+struct variable_set
+  {
+    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.  */
+    int next_is_parent;                 /* True if next is a parent target.  */
+  };
+
+/* Structure used for pattern-specific variables.  */
+
+struct pattern_var
+  {
+    struct pattern_var *next;
+    const char *suffix;
+    const char *target;
+    unsigned int len;
+    struct variable variable;
+  };
+
+extern char *variable_buffer;
+extern struct variable_set_list *current_variable_set_list;
+extern struct variable *default_goal_var;
+extern struct variable shell_var;
+
+#ifdef KMK
+extern struct variable_set global_variable_set;
+extern struct variable_set_list global_setlist;
+extern unsigned int variable_buffer_length;
+# define VARIABLE_BUFFER_ZONE   5
+#endif
+
+/* expand.c */
+#ifndef KMK
+char *
+variable_buffer_output (char *ptr, const char *string, unsigned int length);
+#else /* KMK */
+# include <k/kDefs.h>
+/* Subroutine of variable_expand and friends:
+   The text to add is LENGTH chars starting at STRING to the variable_buffer.
+   The text is added to the buffer at PTR, and the updated pointer into
+   the buffer is returned as the value.  Thus, the value returned by
+   each call to variable_buffer_output should be the first argument to
+   the following call.  */
+
+K_INLINE char *variable_buffer_output (char *ptr, const char *string, unsigned int length)
+{
+  register unsigned int newlen = length + (ptr - variable_buffer);
+
+  if ((newlen + VARIABLE_BUFFER_ZONE) > variable_buffer_length)
+    {
+      unsigned int offset = ptr - variable_buffer;
+      variable_buffer_length = variable_buffer_length <= 1024
+                             ? 2048 : variable_buffer_length * 4;
+      if (variable_buffer_length < newlen + 100)
+          variable_buffer_length = (newlen + 100 + 1023) & ~1023U;
+      variable_buffer = xrealloc (variable_buffer, variable_buffer_length);
+      ptr = variable_buffer + offset;
+    }
+
+# ifndef _MSC_VER
+  switch (length)
+    {
+      case 4: ptr[3] = string[3]; /* fall thru */
+      case 3: ptr[2] = string[2]; /* fall thru */
+      case 2: ptr[1] = string[1]; /* fall thru */
+      case 1: ptr[0] = string[0]; /* fall thru */
+      case 0:
+          break;
+      default:
+          memcpy (ptr, string, length);
+          break;
+    }
+# else
+  memcpy (ptr, string, length);
+# endif
+  return ptr + length;
+}
+#endif /* KMK */
+
+char *variable_expand (const char *line);
+char *variable_expand_for_file (const char *line, struct file *file);
+#if defined (CONFIG_WITH_VALUE_LENGTH) || defined (CONFIG_WITH_COMMANDS_FUNC)
+char *variable_expand_for_file_2 (char *o, const char *line, unsigned int lenght,
+                                  struct file *file, unsigned int *value_lenp);
+#endif
+char *allocated_variable_expand_for_file (const char *line, struct file *file);
+#ifndef CONFIG_WITH_VALUE_LENGTH
+#define allocated_variable_expand(line) \
+  allocated_variable_expand_for_file (line, (struct file *) 0)
+#else  /* CONFIG_WITH_VALUE_LENGTH */
+# define allocated_variable_expand(line) \
+  allocated_variable_expand_2 (line, -1, NULL)
+char *allocated_variable_expand_2 (const char *line, unsigned int length, unsigned int *value_lenp);
+char *allocated_variable_expand_3 (const char *line, unsigned int length,
+                                   unsigned int *value_lenp, unsigned int *buffer_lengthp);
+void recycle_variable_buffer (char *buffer, unsigned int length);
+#endif /* CONFIG_WITH_VALUE_LENGTH */
+char *expand_argument (const char *str, const char *end);
+#ifndef CONFIG_WITH_VALUE_LENGTH
+char *
+variable_expand_string (char *line, const char *string, long length);
+#else  /* CONFIG_WITH_VALUE_LENGTH */
+# include <k/kDefs.h>
+char *
+variable_expand_string_2 (char *line, const char *string, long length, char **eol);
+K_INLINE char *variable_expand_string (char *line, const char *string, long length)
+{
+    char *ignored;
+    return variable_expand_string_2 (line, string, length, &ignored);
+}
+#endif /* CONFIG_WITH_VALUE_LENGTH */
+void install_variable_buffer (char **bufp, unsigned int *lenp);
+void restore_variable_buffer (char *buf, unsigned int len);
+char *install_variable_buffer_with_hint (char **bufp, unsigned int *lenp, unsigned int size_hint); /* bird */
+char *ensure_variable_buffer_space (char *ptr, unsigned int size); /* bird */
+#ifdef CONFIG_WITH_VALUE_LENGTH
+void append_expanded_string_to_variable (struct variable *v, const char *value,
+                                         unsigned int value_len, int append);
+#endif
+
+/* function.c */
+#ifndef CONFIG_WITH_VALUE_LENGTH
+int handle_function (char **op, const char **stringp);
+#else
+int handle_function (char **op, const char **stringp, const char *nameend, const char *eol);
+#endif
+#ifdef CONFIG_WITH_COMPILER
+typedef char *(*make_function_ptr_t) (char *, char **, const char *);
+make_function_ptr_t lookup_function_for_compiler (const char *name, unsigned int len,
+                                                  unsigned char *minargsp, unsigned char *maxargsp,
+                                                  char *expargsp, const char **funcnamep);
+#endif
+int pattern_matches (const char *pattern, const char *percent, const char *str);
+char *subst_expand (char *o, const char *text, const char *subst,
+                    const char *replace, unsigned int slen, unsigned int rlen,
+                    int by_word);
+char *patsubst_expand_pat (char *o, const char *text, const char *pattern,
+                           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);
+void shell_completed (int exit_code, int exit_sig);
+
+#ifdef CONFIG_WITH_COMMANDS_FUNC /* for append.c */
+char *func_commands (char *o, char **argv, const char *funcname);
+#endif
+
+#if defined (CONFIG_WITH_VALUE_LENGTH)
+/* Avoid calling handle_function for every variable, do the
+   basic checks in variable_expand_string_2. */
+extern char func_char_map[256];
+# define MAX_FUNCTION_LENGTH    14
+# define MIN_FUNCTION_LENGTH    2
+K_INLINE const char *may_be_function_name (const char *name, const char *eos)
+{
+  unsigned char ch;
+  unsigned int len = name - eos;
+
+  /* Minimum length is MIN + whitespace. Check this directly.
+     ASSUMES: MIN_FUNCTION_LENGTH == 2 */
+
+  if (MY_PREDICT_TRUE(len < MIN_FUNCTION_LENGTH + 1
+                      || !func_char_map[(int)(name[0])]
+                      || !func_char_map[(int)(name[1])]))
+    return 0;
+  if (MY_PREDICT_TRUE(!func_char_map[ch = name[2]]))
+    return ISSPACE (ch) ? name + 2 : 0;
+
+  name += 3;
+  if (len > MAX_FUNCTION_LENGTH)
+    len = MAX_FUNCTION_LENGTH - 3;
+  else if (len == 3)
+    len -= 3;
+  if (!len)
+    return 0;
+
+  /* Loop over the remaining possiblities. */
+
+  while (func_char_map[ch = *name])
+    {
+      if (!len--)
+        return 0;
+      name++;
+    }
+  if (ch == '\0' || ISBLANK (ch))
+    return name;
+  return 0;
+}
+#endif /* CONFIG_WITH_VALUE_LENGTH */
+
+/* expand.c */
+#ifndef CONFIG_WITH_VALUE_LENGTH
+char *recursively_expand_for_file (struct variable *v, struct file *file);
+#define recursively_expand(v)   recursively_expand_for_file (v, NULL)
+#else
+char *recursively_expand_for_file (struct variable *v, struct file *file,
+                                   unsigned int *value_lenp);
+# define recursively_expand(v)  recursively_expand_for_file (v, NULL, NULL)
+#endif /* CONFIG_WITH_VALUE_LENGTH */
+#ifdef CONFIG_WITH_COMPILER
+char *reference_recursive_variable (char *o, struct variable *v);
+#endif
+
+/* variable.c */
+struct variable_set_list *create_new_variable_set (void);
+void free_variable_set (struct variable_set_list *);
+struct variable_set_list *push_new_variable_scope (void);
+void pop_variable_scope (void);
+void define_automatic_variables (void);
+void initialize_file_variables (struct file *file, int reading);
+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);
+#ifdef KMK
+void print_variable_set (struct variable_set *set, const char *prefix, int pauto);
+#endif
+
+#ifndef CONFIG_WITH_VALUE_LENGTH
+struct variable *do_variable_definition (const floc *flocp,
+                                         const char *name, const char *value,
+                                         enum variable_origin origin,
+                                         enum variable_flavor flavor,
+                                         int target_var);
+#else  /* CONFIG_WITH_VALUE_LENGTH */
+# define do_variable_definition(flocp, varname, value, origin, flavor, target_var) \
+    do_variable_definition_2 ((flocp), (varname), (value), ~0U, 0, NULL, \
+                              (origin), (flavor), (target_var))
+struct variable *do_variable_definition_2 (const floc *flocp,
+                                           const char *varname,
+                                           const char *value,
+                                           unsigned int value_len,
+                                           int simple_value, char *free_value,
+                                           enum variable_origin origin,
+                                           enum variable_flavor flavor,
+                                           int target_var);
+#endif /* CONFIG_WITH_VALUE_LENGTH */
+char *parse_variable_definition (const char *line,
+                                 struct variable *v);
+struct variable *assign_variable_definition (struct variable *v, const char *line IF_WITH_VALUE_LENGTH_PARAM(char *eos));
+struct variable *try_variable_definition (const floc *flocp, const char *line
+                                          IF_WITH_VALUE_LENGTH_PARAM(char *eos),
+                                          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 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);
+#ifdef CONFIG_WITH_STRCACHE2
+struct variable *lookup_variable_strcached (const char *name);
+#endif
+
+#ifdef CONFIG_WITH_VALUE_LENGTH
+void append_string_to_variable (struct variable *v, const char *value,
+                                unsigned int value_len, int append);
+struct variable * do_variable_definition_append (const floc *flocp, struct variable *v,
+                                                 const char *value, unsigned int value_len,
+                                                 int simple_value, enum variable_origin origin,
+                                                 int append);
+
+struct variable *define_variable_in_set (const char *name, unsigned int length,
+                                         const char *value,
+                                         unsigned int value_length,
+                                         int duplicate_value,
+                                         enum variable_origin origin,
+                                         int recursive,
+                                         struct variable_set *set,
+                                         const floc *flocp);
+
+/* Define a variable in the current variable set.  */
+
+#define define_variable(n,l,v,o,r) \
+          define_variable_in_set((n),(l),(v),~0U,1,(o),(r),\
+                                 current_variable_set_list->set,NILF)
+
+#define define_variable_vl(n,l,v,vl,dv,o,r) \
+          define_variable_in_set((n),(l),(v),(vl),(dv),(o),(r),\
+                                 current_variable_set_list->set,NILF)
+
+/* Define a variable with a constant name in the current variable set.  */
+
+#define define_variable_cname(n,v,o,r) \
+          define_variable_in_set((n),(sizeof (n) - 1),(v),~0U,1,(o),(r),\
+                                 current_variable_set_list->set,NILF)
+
+/* Define a variable with a location in the current variable set.  */
+
+#define define_variable_loc(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),~0U,1,(o),(r),\
+                                 current_variable_set_list->set,(f))
+
+/* Define a variable with a location in the global variable set.  */
+
+#define define_variable_global(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),~0U,1,(o),(r),NULL,(f))
+
+#define define_variable_vl_global(n,l,v,vl,dv,o,r,f) \
+          define_variable_in_set((n),(l),(v),(vl),(dv),(o),(r),NULL,(f))
+
+/* Define a variable in FILE's variable set.  */
+
+#define define_variable_for_file(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),~0U,1,(o),(r),(f)->variables->set,NILF)
+
+#else  /* !CONFIG_WITH_VALUE_LENGTH */
+
+struct variable *define_variable_in_set (const char *name, unsigned int length,
+                                         const char *value,
+                                         enum variable_origin origin,
+                                         int recursive,
+                                         struct variable_set *set,
+                                         const floc *flocp);
+
+/* Define a variable in the current variable set.  */
+
+#define define_variable(n,l,v,o,r) \
+          define_variable_in_set((n),(l),(v),(o),(r),\
+                                 current_variable_set_list->set,NILF)           /* force merge conflict */
+
+/* Define a variable with a constant name in the current variable set.  */
+
+#define define_variable_cname(n,v,o,r) \
+          define_variable_in_set((n),(sizeof (n) - 1),(v),(o),(r),\
+                                 current_variable_set_list->set,NILF)           /* force merge conflict */
+
+/* Define a variable with a location in the current variable set.  */
+
+#define define_variable_loc(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),(o),(r),\
+                                 current_variable_set_list->set,(f))            /* force merge conflict */
+
+/* Define a variable with a location in the global variable set.  */
+
+#define define_variable_global(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),(o),(r),NULL,(f))                  /* force merge conflict */
+
+/* Define a variable in FILE's variable set.  */
+
+#define define_variable_for_file(n,l,v,o,r,f) \
+          define_variable_in_set((n),(l),(v),(o),(r),(f)->variables->set,NILF)  /* force merge conflict */
+
+#endif /* !CONFIG_WITH_VALUE_LENGTH */
+
+void undefine_variable_in_set (const char *name, unsigned int length,
+                               enum variable_origin origin,
+                               struct variable_set *set);
+
+/* Remove variable from the current variable set. */
+
+#define undefine_variable_global(n,l,o) \
+          undefine_variable_in_set((n),(l),(o),NULL)
+
+#ifdef KMK
+struct variable *
+define_variable_alias_in_set (const char *name, unsigned int length,
+                              struct variable *target, enum variable_origin origin,
+                              struct variable_set *set, const floc *flocp);
+#endif
+
+/* Warn that NAME is an undefined variable.  */
+
+#define warn_undefined(n,l) do{\
+                              if (warn_undefined_variables_flag)        \
+                                error (reading_file, (l),               \
+                                       _("warning: undefined variable '%.*s'"), \
+                                       (int)(l), (n));                  \
+                              }while(0)
+
+char **target_environment (struct file *file);
+
+struct pattern_var *create_pattern_var (const char *target,
+                                        const char *suffix);
+
+extern int export_all_variables;
+#ifdef CONFIG_WITH_STRCACHE2
+extern struct strcache2 variable_strcache;
+#endif
+
+#ifdef KMK
+# define MAKELEVEL_NAME "KMK_LEVEL"
+#else
+#define MAKELEVEL_NAME "MAKELEVEL"
+#endif
+#define MAKELEVEL_LENGTH (CSTRLEN (MAKELEVEL_NAME))