Add bash 5.2 to third_party

2025-05-28 00:02:28 +00:00 · 2023-12-11 07:38:17 -08:00 · 2023-12-11 07:38:17 -08:00 · f4a2a65cc8
commit f4a2a65cc8
parent e1f65d5f2b
237 changed files with 120739 additions and 1 deletions
--- a/third_party/bash/xmalloc.c
+++ b/third_party/bash/xmalloc.c
@ -0,0 +1,225 @@
+/* xmalloc.c -- safe versions of malloc and realloc */
+
+/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the GNU Bourne Again SHell.
+
+   Bash 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.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if defined (HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#include "bashtypes.h"
+#include <stdio.h>
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include "error.h"
+
+#include "bashintl.h"
+
+#if !defined (PTR_T)
+#  if defined (__STDC__)
+#    define PTR_T void *
+#  else
+#    define PTR_T char *
+#  endif /* !__STDC__ */
+#endif /* !PTR_T */
+
+#if HAVE_SBRK && !HAVE_DECL_SBRK
+extern char *sbrk();
+#endif
+
+#if HAVE_SBRK && defined (USING_BASH_MALLOC)
+static PTR_T lbreak;
+static int brkfound;
+static size_t allocated;
+#endif
+
+/* **************************************************************** */
+/*								    */
+/*		   Memory Allocation and Deallocation.		    */
+/*								    */
+/* **************************************************************** */
+
+#if HAVE_SBRK && defined (USING_BASH_MALLOC)
+#define FINDBRK() \
+do { \
+  if (brkfound == 0) \
+    { \
+      lbreak = (PTR_T)sbrk (0); \
+      brkfound++; \
+    } \
+} while (0)
+
+static size_t
+findbrk ()
+{
+  FINDBRK();
+  return (char *)sbrk (0) - (char *)lbreak;
+}
+#else
+#define FINDBRK()
+#endif
+
+static void
+allocerr (func, bytes)
+     const char *func;
+     size_t bytes;
+{
+#if HAVE_SBRK && defined (USING_BASH_MALLOC)
+      allocated = findbrk ();
+      fatal_error (_("%s: cannot allocate %lu bytes (%lu bytes allocated)"), func, (unsigned long)bytes, (unsigned long)allocated);
+#else
+      fatal_error (_("%s: cannot allocate %lu bytes"), func, (unsigned long)bytes);
+#endif /* !HAVE_SBRK */
+}
+
+/* Return a pointer to free()able block of memory large enough
+   to hold BYTES number of bytes.  If the memory cannot be allocated,
+   print an error message and abort. */
+PTR_T
+xmalloc (bytes)
+     size_t bytes;
+{
+  PTR_T temp;
+
+#if defined (DEBUG)
+  if (bytes == 0)
+    internal_warning("xmalloc: size argument is 0");
+#endif
+
+  FINDBRK();
+  temp = malloc (bytes);
+
+  if (temp == 0)
+    allocerr ("xmalloc", bytes);
+
+  return (temp);
+}
+
+PTR_T
+xrealloc (pointer, bytes)
+     PTR_T pointer;
+     size_t bytes;
+{
+  PTR_T temp;
+
+#if defined (DEBUG)
+  if (bytes == 0)
+    internal_warning("xrealloc: size argument is 0");
+#endif
+
+  FINDBRK();
+  temp = pointer ? realloc (pointer, bytes) : malloc (bytes);
+
+  if (temp == 0)
+    allocerr ("xrealloc", bytes);
+
+  return (temp);
+}
+
+/* Use this as the function to call when adding unwind protects so we
+   don't need to know what free() returns. */
+void
+xfree (string)
+     PTR_T string;
+{
+  if (string)
+    free (string);
+}
+
+#ifdef USING_BASH_MALLOC
+#include <malloc/shmalloc.h>
+
+static void
+sh_allocerr (func, bytes, file, line)
+     const char *func;
+     size_t bytes;
+     char *file;
+     int line;
+{
+#if HAVE_SBRK
+      allocated = findbrk ();
+      fatal_error (_("%s: %s:%d: cannot allocate %lu bytes (%lu bytes allocated)"), func, file, line, (unsigned long)bytes, (unsigned long)allocated);
+#else
+      fatal_error (_("%s: %s:%d: cannot allocate %lu bytes"), func, file, line, (unsigned long)bytes);
+#endif /* !HAVE_SBRK */
+}
+
+PTR_T
+sh_xmalloc (bytes, file, line)
+     size_t bytes;
+     char *file;
+     int line;
+{
+  PTR_T temp;
+
+#if defined (DEBUG)
+  if (bytes == 0)
+    internal_warning("xmalloc: %s:%d: size argument is 0", file, line);
+#endif
+
+  FINDBRK();
+  temp = sh_malloc (bytes, file, line);
+
+  if (temp == 0)
+    sh_allocerr ("xmalloc", bytes, file, line);
+
+  return (temp);
+}
+
+PTR_T
+sh_xrealloc (pointer, bytes, file, line)
+     PTR_T pointer;
+     size_t bytes;
+     char *file;
+     int line;
+{
+  PTR_T temp;
+
+#if defined (DEBUG)
+  if (bytes == 0)
+    internal_warning("xrealloc: %s:%d: size argument is 0", file, line);
+#endif
+
+  FINDBRK();
+  temp = pointer ? sh_realloc (pointer, bytes, file, line) : sh_malloc (bytes, file, line);
+
+  if (temp == 0)
+    sh_allocerr ("xrealloc", bytes, file, line);
+
+  return (temp);
+}
+
+void
+sh_xfree (string, file, line)
+     PTR_T string;
+     char *file;
+     int line;
+{
+  if (string)
+    sh_free (string, file, line);
+}
+#endif