Fri Jan 15 18:17:00 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)

* ecoff-ext.h: Added prototypes for new ECOFF swapping functions.
	(opt_ext): New structure.
	* mips.h (ZMAGIC): Defined to be 0413.
	(_LIB): Defined to be ".lib"
	(external_reloc): MIPS ECOFF relocs are only 8 bytes.  Added
	macros to aid in swapping.
This commit is contained in:
Ian Lance Taylor
1993-01-15 23:20:27 +00:00
parent 2aedd91ee1
commit 9dcfbb6781
3 changed files with 69 additions and 4 deletions

View File

@@ -47,6 +47,7 @@ typedef struct external_aouthdr
#define AOUTSZ (sizeof(AOUTHDR))
#define ZMAGIC 0413 /* demand load format, eg normal ld output */
/********************** SECTION HEADER **********************/
@@ -77,6 +78,7 @@ struct external_scnhdr {
#define _SBSS ".sbss"
#define _LIT4 ".lit4"
#define _LIT8 ".lit8"
#define _LIB ".lib"
#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
@@ -98,16 +100,38 @@ struct external_scnhdr {
struct external_reloc {
unsigned char r_vaddr[4];
unsigned char r_symndx[4];
unsigned char r_type[2];
unsigned char pad[2];
unsigned char r_bits[4];
};
/* MIPS ECOFF uses a packed 8 byte format for relocs. These constants
are used to unpack the r_bits field. FIXME: Check these on a big
endian machine. */
#define RELOC_BITS0_SYMNDX_SH_LEFT_BIG 16
#define RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE 0
#define RELOC_BITS1_SYMNDX_SH_LEFT_BIG 8
#define RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE 8
#define RELOC_BITS2_SYMNDX_SH_LEFT_BIG 0
#define RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE 16
#define RELOC_BITS3_TYPE_BIG 0x3C
#define RELOC_BITS3_TYPE_SH_BIG 2
#define RELOC_BITS3_TYPE_LITTLE 0x78
#define RELOC_BITS3_TYPE_SH_LITTLE 3
#define RELOC_BITS3_EXTERN_BIG 0x01
#define RELOC_BITS3_EXTERN_LITTLE 0x80
/* We store the extern field in the r_offset field of a struct
internal_reloc. FIXME: Do this more sensibly. */
#define r_extern r_offset
/* Relevent values for r_type and ecoff. Would someone please document them */
#define RELOC struct external_reloc
#define RELSZ 12
#define RELSZ 8
/* gcc uses mips-tfile to output type information in special stabs
entries. These must match the corresponding definition in