/* ECOFF support on Alpha machines.
- coff/ecoff.h must be included before this file. */
-
+ coff/ecoff.h must be included before this file.
+
+ Copyright (C) 2001-2019 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
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
/********************** FILE HEADER **********************/
-struct external_filehdr {
+struct external_filehdr
+{
unsigned char f_magic[2]; /* magic number */
unsigned char f_nscns[2]; /* number of sections */
unsigned char f_timdat[4]; /* time & date stamp */
};
/* Magic numbers are defined in coff/ecoff.h. */
-#define ALPHA_ECOFF_BADMAG(x) ((x).f_magic!=ALPHA_MAGIC)
+#define ALPHA_ECOFF_BADMAG(x) \
+ ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD)
+
+#define ALPHA_ECOFF_COMPRESSEDMAG(x) \
+ ((x).f_magic == ALPHA_MAGIC_COMPRESSED)
+
+/* The object type is encoded in the f_flags. */
+#define F_ALPHA_OBJECT_TYPE_MASK 0x3000
+#define F_ALPHA_NO_SHARED 0x1000
+#define F_ALPHA_SHARABLE 0x2000
+#define F_ALPHA_CALL_SHARED 0x3000
#define FILHDR struct external_filehdr
-#define FILHSZ sizeof(FILHDR)
+#define FILHSZ 24
/********************** AOUT "OPTIONAL HEADER" **********************/
-
typedef struct external_aouthdr
{
unsigned char magic[2]; /* type of file */
unsigned char vstamp[2]; /* version stamp */
- unsigned char tsize[8]; /* text size in bytes, padded to FW bdry*/
+ unsigned char bldrev[2]; /* ?? */
+ unsigned char padding[2]; /* pad to quadword boundary */
+ unsigned char tsize[8]; /* text size in bytes */
unsigned char dsize[8]; /* initialized data " " */
unsigned char bsize[8]; /* uninitialized data " " */
unsigned char entry[8]; /* entry pt. */
unsigned char text_start[8]; /* base of text used for this file */
unsigned char data_start[8]; /* base of data used for this file */
unsigned char bss_start[8]; /* base of bss used for this file */
- unsigned char gprmask[4]; /* ?? */
- unsigned char cprmask[4][8]; /* ?? */
- unsigned char gp_value[4]; /* value for gp register */
+ unsigned char gprmask[4]; /* bitmask of general registers used */
+ unsigned char fprmask[4]; /* bitmask of floating point registers used */
+ unsigned char gp_value[8]; /* value for gp register */
} AOUTHDR;
/* compute size of a header */
-#define AOUTSZ (sizeof(AOUTHDR))
+#define AOUTSZ 80
+#define AOUTHDRSZ 80
/********************** SECTION HEADER **********************/
-struct external_scnhdr {
+struct external_scnhdr
+{
unsigned char s_name[8]; /* section name */
unsigned char s_paddr[8]; /* physical address, aliased s_nlib */
unsigned char s_vaddr[8]; /* virtual address */
};
#define SCNHDR struct external_scnhdr
-#define SCNHSZ sizeof(SCNHDR)
+#define SCNHSZ 64
/********************** RELOCATION DIRECTIVES **********************/
-struct external_reloc {
+struct external_reloc
+{
unsigned char r_vaddr[8];
+ unsigned char r_symndx[4];
unsigned char r_bits[4];
};
#define RELOC struct external_reloc
-#define RELSZ 8
-
-/* MIPS ECOFF uses a packed 8 byte format for relocs. These constants
- are used to unpack the r_bits field. */
-
-#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 0x1E
-#define RELOC_BITS3_TYPE_SH_BIG 1
-#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
-
-#define DEFAULT_DATA_SECTION_ALIGNMENT 16
-#define DEFAULT_BSS_SECTION_ALIGNMENT 16
-#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
-/* For new sections we havn't heard of before */
-#define DEFAULT_SECTION_ALIGNMENT 16
+#define RELSZ 16
+
+/* Constants to unpack the r_bits field. The Alpha seems to always be
+ little endian, so I haven't bothered to define big endian variants
+ of these. */
+
+#define RELOC_BITS0_TYPE_LITTLE 0xff
+#define RELOC_BITS0_TYPE_SH_LITTLE 0
+
+#define RELOC_BITS1_EXTERN_LITTLE 0x01
+
+#define RELOC_BITS1_OFFSET_LITTLE 0x7e
+#define RELOC_BITS1_OFFSET_SH_LITTLE 1
+
+#define RELOC_BITS1_RESERVED_LITTLE 0x80
+#define RELOC_BITS1_RESERVED_SH_LITTLE 7
+#define RELOC_BITS2_RESERVED_LITTLE 0xff
+#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1
+#define RELOC_BITS3_RESERVED_LITTLE 0x03
+#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9
+
+#define RELOC_BITS3_SIZE_LITTLE 0xfc
+#define RELOC_BITS3_SIZE_SH_LITTLE 2
+
+/* The r_type field in a reloc is one of the following values. */
+#define ALPHA_R_IGNORE 0
+#define ALPHA_R_REFLONG 1
+#define ALPHA_R_REFQUAD 2
+#define ALPHA_R_GPREL32 3
+#define ALPHA_R_LITERAL 4
+#define ALPHA_R_LITUSE 5
+#define ALPHA_R_GPDISP 6
+#define ALPHA_R_BRADDR 7
+#define ALPHA_R_HINT 8
+#define ALPHA_R_SREL16 9
+#define ALPHA_R_SREL32 10
+#define ALPHA_R_SREL64 11
+#define ALPHA_R_OP_PUSH 12
+#define ALPHA_R_OP_STORE 13
+#define ALPHA_R_OP_PSUB 14
+#define ALPHA_R_OP_PRSHIFT 15
+#define ALPHA_R_GPVALUE 16
+#define ALPHA_R_GPRELHIGH 17
+#define ALPHA_R_GPRELLOW 18
+#define ALPHA_R_IMMED 19
+
+/* Overloaded reloc value used by Net- and OpenBSD. */
+#define ALPHA_R_LITERALSLEAZY 17
+
+/* With ALPHA_R_LITUSE, the r_size field is one of the following values. */
+#define ALPHA_R_LU_BASE 1
+#define ALPHA_R_LU_BYTOFF 2
+#define ALPHA_R_LU_JSR 3
+
+/* With ALPHA_R_IMMED, the r_size field is one of the following values. */
+#define ALPHA_R_IMMED_GP_16 1
+#define ALPHA_R_IMMED_GP_HI32 2
+#define ALPHA_R_IMMED_SCN_HI32 3
+#define ALPHA_R_IMMED_BR_HI32 4
+#define ALPHA_R_IMMED_LO32 5
/********************** SYMBOLIC INFORMATION **********************/
/* File header as a set of bytes */
-struct hdr_ext {
+struct hdr_ext
+{
unsigned char h_magic[2];
unsigned char h_vstamp[2];
unsigned char h_ilineMax[4];
- unsigned char h_cbLine[4];
- unsigned char h_cbLineOffset[4];
unsigned char h_idnMax[4];
- unsigned char h_cbDnOffset[4];
unsigned char h_ipdMax[4];
- unsigned char h_cbPdOffset[4];
unsigned char h_isymMax[4];
- unsigned char h_cbSymOffset[4];
unsigned char h_ioptMax[4];
- unsigned char h_cbOptOffset[4];
unsigned char h_iauxMax[4];
- unsigned char h_cbAuxOffset[4];
unsigned char h_issMax[4];
- unsigned char h_cbSsOffset[4];
unsigned char h_issExtMax[4];
- unsigned char h_cbSsExtOffset[4];
unsigned char h_ifdMax[4];
- unsigned char h_cbFdOffset[4];
unsigned char h_crfd[4];
- unsigned char h_cbRfdOffset[4];
unsigned char h_iextMax[4];
- unsigned char h_cbExtOffset[4];
+ unsigned char h_cbLine[8];
+ unsigned char h_cbLineOffset[8];
+ unsigned char h_cbDnOffset[8];
+ unsigned char h_cbPdOffset[8];
+ unsigned char h_cbSymOffset[8];
+ unsigned char h_cbOptOffset[8];
+ unsigned char h_cbAuxOffset[8];
+ unsigned char h_cbSsOffset[8];
+ unsigned char h_cbSsExtOffset[8];
+ unsigned char h_cbFdOffset[8];
+ unsigned char h_cbRfdOffset[8];
+ unsigned char h_cbExtOffset[8];
};
/* File descriptor external record */
-struct fdr_ext {
- unsigned char f_adr[4];
+struct fdr_ext
+{
+ unsigned char f_adr[8];
+ unsigned char f_cbLineOffset[8];
+ unsigned char f_cbLine[8];
+ unsigned char f_cbSs[8];
unsigned char f_rss[4];
unsigned char f_issBase[4];
- unsigned char f_cbSs[4];
unsigned char f_isymBase[4];
unsigned char f_csym[4];
unsigned char f_ilineBase[4];
unsigned char f_cline[4];
unsigned char f_ioptBase[4];
unsigned char f_copt[4];
- unsigned char f_ipdFirst[2];
- unsigned char f_cpd[2];
+ unsigned char f_ipdFirst[4];
+ unsigned char f_cpd[4];
unsigned char f_iauxBase[4];
unsigned char f_caux[4];
unsigned char f_rfdBase[4];
unsigned char f_crfd[4];
unsigned char f_bits1[1];
unsigned char f_bits2[3];
- unsigned char f_cbLineOffset[4];
- unsigned char f_cbLine[4];
+ unsigned char f_padding[4];
};
#define FDR_BITS1_LANG_BIG 0xF8
/* Procedure descriptor external record */
struct pdr_ext {
- unsigned char p_adr[4];
+ unsigned char p_adr[8];
+ unsigned char p_cbLineOffset[8];
unsigned char p_isym[4];
unsigned char p_iline[4];
unsigned char p_regmask[4];
unsigned char p_fregmask[4];
unsigned char p_fregoffset[4];
unsigned char p_frameoffset[4];
- unsigned char p_framereg[2];
- unsigned char p_pcreg[2];
unsigned char p_lnLow[4];
unsigned char p_lnHigh[4];
- unsigned char p_cbLineOffset[4];
+ unsigned char p_gp_prologue[1];
+ unsigned char p_bits1[1];
+ unsigned char p_bits2[1];
+ unsigned char p_localoff[1];
+ unsigned char p_framereg[2];
+ unsigned char p_pcreg[2];
};
+#define PDR_BITS1_GP_USED_BIG 0x80
+#define PDR_BITS1_REG_FRAME_BIG 0x40
+#define PDR_BITS1_PROF_BIG 0x20
+#define PDR_BITS1_RESERVED_BIG 0x1f
+#define PDR_BITS1_RESERVED_SH_LEFT_BIG 8
+#define PDR_BITS2_RESERVED_BIG 0xff
+#define PDR_BITS2_RESERVED_SH_BIG 0
+
+#define PDR_BITS1_GP_USED_LITTLE 0x01
+#define PDR_BITS1_REG_FRAME_LITTLE 0x02
+#define PDR_BITS1_PROF_LITTLE 0x04
+#define PDR_BITS1_RESERVED_LITTLE 0xf8
+#define PDR_BITS1_RESERVED_SH_LITTLE 3
+#define PDR_BITS2_RESERVED_LITTLE 0xff
+#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5
+
/* Line numbers */
struct line_ext {
/* Symbol external record */
struct sym_ext {
+ unsigned char s_value[8];
unsigned char s_iss[4];
- unsigned char s_value[4];
unsigned char s_bits1[1];
unsigned char s_bits2[1];
unsigned char s_bits3[1];
/* External symbol external record */
struct ext_ext {
- unsigned char es_bits1[1];
- unsigned char es_bits2[1];
- unsigned char es_ifd[2];
struct sym_ext es_asym;
+ unsigned char es_bits1[1];
+ unsigned char es_bits2[3];
+ unsigned char es_ifd[4];
};
#define EXT_BITS1_JMPTBL_BIG 0x80
projects / deliverable / binutils-gdb.git / blobdiff