X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fhelper%2Freplacements.h;h=84705c528acd42013efd8e4688483b6888b3e5d7;hb=167ce32a7cb99962e6ae8f8c6d36b0999c16888c;hp=0b132d778fd8bc75f55c09395427a5d7d56e0f3f;hpb=7087b66f19a7d60025f7315baa26d682804f3640;p=openocd.git

diff --git a/src/helper/replacements.h b/src/helper/replacements.h
index 0b132d778f..84705c528a 100644
--- a/src/helper/replacements.h
+++ b/src/helper/replacements.h
@@ -24,6 +24,8 @@
 #include "config.h"
 #endif
 
+#include "types.h"
+
 /* include necessary headers for socket functionality */
 #ifdef _WIN32
 #include <winsock2.h>
@@ -65,7 +67,40 @@ struct timezone {
 };
 
 extern int gettimeofday(struct timeval *tv, struct timezone *tz);
-#endif
+#endif
+
+/**** clear_malloc & fill_malloc ****/
+void *clear_malloc(size_t size);
+void *fill_malloc(size_t size);
+
+/*
+ * Now you have 3 ways for the malloc function:
+ *
+ * 1. Do not change anything, use the original malloc
+ *
+ * 2. Use the clear_malloc function instead of the original malloc.
+ *    In this case you must use the following define:
+ *    #define malloc((_a)) clear_malloc((_a))
+ *
+ * 3. Use the fill_malloc function instead of the original malloc.
+ *    In this case you must use the following define:
+ *    #define malloc((_a)) fill_malloc((_a))
+ *
+ * We have figured out that there could exist some malloc problems
+ * where variables are using without to be initialise. To find this
+ * places, use the fill_malloc function. With this function we want 
+ * to initialize memory to some known bad state. This is quite easily 
+ * spotted in the debugger and will trap to an invalid address. 
+ *
+ * clear_malloc can be used if you want to set not initialise 
+ * variable to 0.
+ *
+ * If you do not want to change the malloc function, to not use one of
+ * the following macros. Which is the default way.
+ */
+ 
+//#define malloc(_a) clear_malloc(_a)
+//#define malloc(_a) fill_malloc(_a)
 
 /* GNU extensions to the C library that may be missing on some systems */
 #ifndef HAVE_STRNDUP
@@ -152,4 +187,51 @@ static __inline void socket_nonblock(int fd)
 #endif
 }
 
+#ifndef HAVE_ELF_H
+
+typedef struct
+{
+	unsigned char	e_ident[16];	/* Magic number and other info */
+	u16	e_type;			/* Object file type */
+	u16	e_machine;		/* Architecture */
+	u32	e_version;		/* Object file version */
+	u32 e_entry;		/* Entry point virtual address */
+	u32 e_phoff;		/* Program header table file offset */
+	u32	e_shoff;		/* Section header table file offset */
+	u32	e_flags;		/* Processor-specific flags */
+	u16	e_ehsize;		/* ELF header size in bytes */
+	u16	e_phentsize;		/* Program header table entry size */
+	u16	e_phnum;		/* Program header table entry count */
+	u16	e_shentsize;		/* Section header table entry size */
+	u16	e_shnum;		/* Section header table entry count */
+	u16	e_shstrndx;		/* Section header string table index */
+} Elf32_Ehdr;
+
+#define	ELFMAG		"\177ELF"
+#define	SELFMAG		4
+
+#define EI_CLASS	4		/* File class byte index */
+#define ELFCLASS32	1		/* 32-bit objects */
+#define ELFCLASS64	2		/* 64-bit objects */
+
+#define EI_DATA		5		/* Data encoding byte index */
+#define ELFDATA2LSB	1		/* 2's complement, little endian */
+#define ELFDATA2MSB	2		/* 2's complement, big endian */
+
+typedef struct
+{
+	u32 p_type;			/* Segment type */
+	u32 p_offset;		/* Segment file offset */
+	u32 p_vaddr;		/* Segment virtual address */
+	u32 p_paddr;		/* Segment physical address */
+	u32 p_filesz;		/* Segment size in file */
+	u32 p_memsz;		/* Segment size in memory */
+	u32 p_flags;		/* Segment flags */
+	u32 p_align;		/* Segment alignment */
+} Elf32_Phdr;
+
+#define PT_LOAD		1		/* Loadable program segment */
+
+#endif /* HAVE_ELF_H */
+
 #endif /* REPLACEMENTS_H */