/* COFF information for TI COFF support. Definitions in this file should be
customized in a target-specific file, and then this file included (see
- tic54x.h for an example). */
+ tic54x.h for an example).
+
+ Copyright (C) 2000-2019 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. */
+
#ifndef COFF_TI_H
#define COFF_TI_H
+/* Note "coff/external.h is not used because TI adds extra fields to the structures. */
+
/********************** FILE HEADER **********************/
-struct external_filehdr {
- char f_magic[2]; /* magic number */
- char f_nscns[2]; /* number of sections */
- char f_timdat[4]; /* time & date stamp */
- char f_symptr[4]; /* file pointer to symtab */
- char f_nsyms[4]; /* number of symtab entries */
- char f_opthdr[2]; /* sizeof(optional hdr) */
- char f_flags[2]; /* flags */
- char f_target_id[2]; /* magic no. (TI COFF-specific) */
-};
+struct external_filehdr
+ {
+ char f_magic[2]; /* magic number */
+ char f_nscns[2]; /* number of sections */
+ char f_timdat[4]; /* time & date stamp */
+ char f_symptr[4]; /* file pointer to symtab */
+ char f_nsyms[4]; /* number of symtab entries */
+ char f_opthdr[2]; /* sizeof(optional hdr) */
+ char f_flags[2]; /* flags */
+ char f_target_id[2]; /* magic no. (TI COFF-specific) */
+ };
/* COFF0 has magic number in f_magic, and omits f_target_id from the file
header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2
#error "TICOFF_TARGET_ARCH needs to be defined for your CPU"
#endif
+#ifndef TICOFF_TARGET_MACHINE_GET
+#define TICOFF_TARGET_MACHINE_GET(FLAGS) 0
+#endif
+
+#ifndef TICOFF_TARGET_MACHINE_SET
+#define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE)
+#endif
+
/* Default to COFF2 for file output */
#ifndef TICOFF_DEFAULT_MAGIC
#define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC
/* This value is made available in the rare case where a bfd is unavailable */
#ifndef OCTETS_PER_BYTE_POWER
-#warn OCTETS_PER_BYTE_POWER not defined for this CPU, it will default to 0
+#error "OCTETS_PER_BYTE_POWER not defined for this CPU"
#else
#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
#endif
/* we need to read/write an extra field in the coff file header */
#ifndef COFF_ADJUST_FILEHDR_IN_POST
-#define COFF_ADJUST_FILEHDR_IN_POST(abfd,src,dst) \
-do { ((struct internal_filehdr *)(dst))->f_target_id = \
-bfd_h_get_16(abfd, (bfd_byte *)(((FILHDR *)(src))->f_target_id)); \
-} while(0)
+#define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \
+ do \
+ { \
+ if (!COFF0_P (abfd)) \
+ ((struct internal_filehdr *)(dst))->f_target_id = \
+ H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id); \
+ } \
+ while (0)
#endif
#ifndef COFF_ADJUST_FILEHDR_OUT_POST
-#define COFF_ADJUST_FILEHDR_OUT_POST(abfd,src,dst) \
-do { bfd_h_put_16(abfd, ((struct internal_filehdr *)(src))->f_target_id, \
- (bfd_byte *)(((FILHDR *)(dst))->f_target_id)); \
-} while(0)
+#define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \
+ do \
+ { \
+ if (!COFF0_P (abfd)) \
+ H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \
+ ((FILHDR *)(dst))->f_target_id); \
+ } \
+ while (0)
#endif
#define FILHDR struct external_filehdr
#define F_RELFLG (0x0001)
#define F_EXEC (0x0002)
#define F_LNNO (0x0004)
+#define F_VERS (0x0010) /* TMS320C4x code */
/* F_LSYMS needs to be redefined in your source file */
#define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */
/* COFF2 changes the offsets and sizes of these fields
Assume we're dealing with the COFF2 scnhdr structure, and adjust
- accordingly
- */
-#define GET_SCNHDR_NRELOC(ABFD,PTR) \
-(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, PTR))
-#define PUT_SCNHDR_NRELOC(ABFD,VAL,PTR) \
-(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,PTR))
-#define GET_SCNHDR_NLNNO(ABFD,PTR) \
-(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-2))
-#define PUT_SCNHDR_NLNNO(ABFD,VAL,PTR) \
-(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-2))
-#define GET_SCNHDR_FLAGS(ABFD,PTR) \
-(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-4))
-#define PUT_SCNHDR_FLAGS(ABFD,VAL,PTR) \
-(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-4))
-#define GET_SCNHDR_PAGE(ABFD,PTR) \
-(COFF2_P(ABFD) ? bfd_h_get_16 (ABFD,PTR) : bfd_h_get_8 (ABFD, (PTR)-7))
-/* on output, make sure that the "reserved" field is zero */
-#define PUT_SCNHDR_PAGE(ABFD,VAL,PTR) \
-(COFF2_P(ABFD) ? bfd_h_put_16 (ABFD,VAL,PTR) : \
-bfd_h_put_8 (ABFD,VAL,(PTR)-7), bfd_h_put_8 (ABFD, 0, (PTR)-8))
+ 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) - 2))
+#define GET_SCNHDR_FLAGS(ABFD, LOC) \
+ (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4))
+#define PUT_SCNHDR_FLAGS(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. */
+#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 */
-#define GET_SCNHDR_SIZE(ABFD,SZP) \
-(bfd_h_get_32(ABFD,SZP)*bfd_octets_per_byte(ABFD))
-#define PUT_SCNHDR_SIZE(ABFD,SZ,SZP) \
-bfd_h_put_32(ABFD,(SZ)/bfd_octets_per_byte(ABFD),SZP)
-
-#define COFF_ADJUST_SCNHDR_IN_POST(ABFD,EXT,INT) \
-do { ((struct internal_scnhdr *)(INT))->s_page = \
-GET_SCNHDR_PAGE(ABFD,(bfd_byte *)((SCNHDR *)(EXT))->s_page); \
-} while(0)
+#define GET_SCNHDR_SIZE(ABFD, SZP) \
+ (H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD, NULL))
+#define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \
+ H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD, NULL), SZP)
+
+#define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \
+ do \
+ { \
+ ((struct internal_scnhdr *)(INT))->s_page = \
+ GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page); \
+ } \
+ while (0)
+
+/* The entire scnhdr may not be assigned.
+ Ensure that everything is initialized. */
+#define COFF_ADJUST_SCNHDR_OUT_PRE(ABFD, INT, EXT) \
+ do \
+ { \
+ memset((EXT), 0, sizeof (SCNHDR)); \
+ } \
+ while (0)
/* The line number and reloc overflow checking in coff_swap_scnhdr_out in
coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc.
Due to different sized v0/v1/v2 section headers, we have to re-write these
fields.
*/
-#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \
-do { \
-PUT_SCNHDR_NLNNO(ABFD,((struct internal_scnhdr *)(INT))->s_nlnno,\
- (bfd_byte *)((SCNHDR *)(EXT))->s_nlnno); \
-PUT_SCNHDR_NRELOC(ABFD,((struct internal_scnhdr *)(INT))->s_nreloc,\
- (bfd_byte *)((SCNHDR *)(EXT))->s_nreloc); \
-PUT_SCNHDR_FLAGS(ABFD,((struct internal_scnhdr *)(INT))->s_flags, \
- (bfd_byte *)((SCNHDR *)(EXT))->s_flags); \
-PUT_SCNHDR_PAGE(ABFD,((struct internal_scnhdr *)(INT))->s_page, \
- (bfd_byte *)((SCNHDR *)(EXT))->s_page); \
-} while(0)
-
-/* Page macros
-
- The first GDB port requires flags in its remote memory access commands to
- distinguish between data/prog space. Hopefully we can make this go away
- eventually. Stuff the page in the upper bits of a 32-bit address, since
- the c5x family only uses 16 or 23 bits.
-
- c2x, c5x and most c54x devices have 16-bit addresses, but the c548 has
- 23-bit program addresses. Make sure the page flags don't interfere.
- These flags are used by GDB to identify the destination page for
- addresses.
-*/
-
-/* recognized load pages */
-#define PG_PROG 0x0 /* PROG page */
-#define PG_DATA 0x1 /* DATA page */
-
-#define ADDR_MASK 0x00FFFFFF
-#define PG_TO_FLAG(p) (((unsigned long)(p) & 0xFF) << 24)
-#define FLAG_TO_PG(f) (((f) >> 24) & 0xFF)
+#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \
+ do \
+ { \
+ PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno, \
+ ((SCNHDR *)(EXT))->s_nlnno); \
+ PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\
+ ((SCNHDR *)(EXT))->s_nreloc); \
+ PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags, \
+ ((SCNHDR *)(EXT))->s_flags); \
+ PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page, \
+ ((SCNHDR *)(EXT))->s_page); \
+ } \
+ while (0)
/*
* names of "special" sections
#define AUXESZ 18
/* section lengths are in target bytes (not host bytes) */
-#define GET_SCN_SCNLEN(ABFD,EXT) \
-(bfd_h_get_32(ABFD,(bfd_byte *)(EXT)->x_scn.x_scnlen)*bfd_octets_per_byte(ABFD))
-#define PUT_SCN_SCNLEN(ABFD,INT,EXT) \
-bfd_h_put_32(ABFD,(INT)/bfd_octets_per_byte(ABFD),\
- (bfd_byte *)(EXT)->x_scn.x_scnlen)
+#define GET_SCN_SCNLEN(ABFD, EXT) \
+ (H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD, NULL))
+#define PUT_SCN_SCNLEN(ABFD, INT, EXT) \
+ H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD, NULL), (EXT)->x_scn.x_scnlen)
/* lnsz size is in bits in COFF file, in bytes in BFD */
#define GET_LNSZ_SIZE(abfd, ext) \
-(bfd_h_get_16(abfd, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_size) / \
- (class != C_FIELD ? 8 : 1))
+ (H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (in_class != C_FIELD ? 8 : 1))
#define PUT_LNSZ_SIZE(abfd, in, ext) \
- bfd_h_put_16(abfd, ((class != C_FIELD) ? (in)*8 : (in)), \
- (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
+ H_PUT_16 (abfd, ((in_class != C_FIELD) ? (in) * 8 : (in)), \
+ ext->x_sym.x_misc.x_lnsz.x_size)
-/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes */
-#define COFF_ADJUST_SYM_IN_POST(ABFD,EXT,INT) \
-do { struct internal_syment *dst = (struct internal_syment *)(INT); \
-if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) dst->n_value /= 8; \
-} while (0)
-
-#define COFF_ADJUST_SYM_OUT_POST(ABFD,INT,EXT) \
-do { struct internal_syment *src = (struct internal_syment *)(INT); \
-SYMENT *dst = (SYMENT *)(EXT); \
-if(src->n_sclass == C_MOU || src->n_sclass == C_MOS) \
-bfd_h_put_32(abfd,src->n_value * 8,(bfd_byte *)dst->e_value); \
-} while (0)
+/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes
+ Also put the load page flag of the section into the symbol value if it's an
+ address. */
+#ifndef NEEDS_PAGE
+#define NEEDS_PAGE(X) 0
+#define PAGE_MASK 0
+#endif
+#define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \
+ do \
+ { \
+ struct internal_syment *dst = (struct internal_syment *)(INT); \
+ if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU) \
+ dst->n_value /= 8; \
+ else if (NEEDS_PAGE (dst->n_sclass)) { \
+ asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \
+ dst->n_value |= (scn->lma & PAGE_MASK); \
+ } \
+ } \
+ while (0)
+
+#define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \
+ do \
+ { \
+ struct internal_syment *src = (struct internal_syment *)(INT); \
+ SYMENT *dst = (SYMENT *)(EXT); \
+ if (src->n_sclass == C_MOU || src->n_sclass == C_MOS) \
+ H_PUT_32 (abfd, src->n_value * 8, dst->e_value); \
+ else if (NEEDS_PAGE (src->n_sclass)) { \
+ H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value); \
+ } \
+ } \
+ while (0)
/* Detect section-relative absolute symbols so they get flagged with a sym
index of -1.
*/
-#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC,SECT) \
-((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \
- && (RELOC)->howto->name[0] == 'A')
+#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \
+ ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \
+ && (RELOC)->howto->name[0] == 'A')
/********************** RELOCATION DIRECTIVES **********************/
-struct external_reloc_v0 {
+struct external_reloc_v0
+{
char r_vaddr[4];
char r_symndx[2];
char r_reserved[2];
char r_type[2];
};
-struct external_reloc {
+struct external_reloc
+{
char r_vaddr[4];
char r_symndx[4];
char r_reserved[2]; /* extended pmad byte for COFF2 */
#define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */
#define RELSZ 12 /* for COFF1/2 */
+#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \
+ do memset (dst->r_reserved, 0, sizeof (dst->r_reserved)); while (0)
+
/* various relocation types. */
#define R_ABS 0x0000 /* no relocation */
#define R_REL13 0x002A /* 13-bit direct reference (???) */
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