customized in a target-specific file, and then this file included (see
tic54x.h for an example).
- Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright 2000, 2001, 2002, 2003, 2008 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/* COFF2 changes the offsets and sizes of these fields
Assume we're dealing with the COFF2 scnhdr structure, and adjust
- accordingly
- */
+ accordingly. Note: The GNU C versions of some of these macros
+ are necessary in order to avoid compile time warnings triggered
+ gcc's array bounds checking. The PUT_SCNHDR_PAGE macro also has
+ the advantage on not evaluating LOC twice. */
+
#define GET_SCNHDR_NRELOC(ABFD, LOC) \
(COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC))
#define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \
(COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC))
+#ifdef __GNUC__
+#define GET_SCNHDR_NLNNO(ABFD, LOC) \
+ ({ \
+ int nlnno; \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ nlnno = H_GET_32 (ABFD, ptr); \
+ else \
+ nlnno = H_GET_16 (ABFD, ptr - 2); \
+ nlnno; \
+ })
+#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
+ do \
+ { \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ H_PUT_32 (ABFD, VAL, ptr); \
+ else \
+ H_PUT_16 (ABFD, VAL, ptr - 2); \
+ } \
+ while (0)
+#define GET_SCNHDR_FLAGS(ABFD, LOC) \
+ ({ \
+ int flags; \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ flags = H_GET_32 (ABFD, ptr); \
+ else \
+ flags = H_GET_16 (ABFD, ptr - 4); \
+ flags; \
+ })
+#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \
+ do \
+ { \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ H_PUT_32 (ABFD, VAL, ptr); \
+ else \
+ H_PUT_16 (ABFD, VAL, ptr - 4); \
+ } \
+ while (0)
+#define GET_SCNHDR_PAGE(ABFD, LOC) \
+ ({ \
+ unsigned page; \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ page = H_GET_16 (ABFD, ptr); \
+ else \
+ page = (unsigned) H_GET_8 (ABFD, ptr - 7); \
+ page; \
+ })
+/* On output, make sure that the "reserved" field is zero. */
+#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
+ do \
+ { \
+ char * ptr = (LOC); \
+ if (COFF2_P (ABFD)) \
+ H_PUT_16 (ABFD, VAL, ptr); \
+ else \
+ { \
+ H_PUT_8 (ABFD, VAL, ptr - 7); \
+ H_PUT_8 (ABFD, 0, ptr - 8); \
+ } \
+ } \
+ while (0)
+#else
#define GET_SCNHDR_NLNNO(ABFD, LOC) \
(COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2))
#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
(COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4))
#define GET_SCNHDR_PAGE(ABFD, LOC) \
(COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7))
-/* on output, make sure that the "reserved" field is zero */
+/* On output, make sure that the "reserved" field is zero. */
#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
(COFF2_P (ABFD) \
? H_PUT_16 (ABFD, VAL, LOC) \
: H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8))
+#endif
+
/* TI COFF stores section size as number of bytes (address units, not octets),
so adjust to be number of octets, which is what BFD expects */