comment fix

1 files changed, 266 insertions, 0 deletions

diff --git a/include/coff/sh.h b/include/coff/sh.h
new file mode 100644
index 0000000..176c6b7
--- /dev/null
+++ b/include/coff/sh.h
@@ -0,0 +1,266 @@
+/*** coff information for Hitachi SH */
+
+/********************** 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			*/
+};
+
+
+
+#define	SH_ARCH_MAGIC_BIG	0x0500
+#define	SH_ARCH_MAGIC_LITTLE	0x0550  /* Little endian SH */
+
+
+#define SHBADMAG(x) \
+ (((x).f_magic!=SH_ARCH_MAGIC_BIG) && \
+  ((x).f_magic!=SH_ARCH_MAGIC_LITTLE))
+
+#define	FILHDR	struct external_filehdr
+#define	FILHSZ	20
+
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+
+
+typedef struct 
+{
+  char 	magic[2];		/* type of file				*/
+  char	vstamp[2];		/* version stamp			*/
+  char	tsize[4];		/* text size in bytes, padded to FW bdry*/
+  char	dsize[4];		/* initialized data "  "		*/
+  char	bsize[4];		/* uninitialized data "   "		*/
+  char	entry[4];		/* entry pt.				*/
+  char 	text_start[4];		/* base of text used for this file */
+  char 	data_start[4];		/* base of data used for this file */
+}
+AOUTHDR;
+
+
+#define AOUTHDRSZ 28
+#define AOUTSZ 28
+
+
+
+
+/********************** SECTION HEADER **********************/
+
+
+struct external_scnhdr {
+	char		s_name[8];	/* section name			*/
+	char		s_paddr[4];	/* physical address, aliased s_nlib */
+	char		s_vaddr[4];	/* virtual address		*/
+	char		s_size[4];	/* section size			*/
+	char		s_scnptr[4];	/* file ptr to raw data for section */
+	char		s_relptr[4];	/* file ptr to relocation	*/
+	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
+	char		s_nreloc[2];	/* number of relocation entries	*/
+	char		s_nlnno[2];	/* number of line number entries*/
+	char		s_flags[4];	/* flags			*/
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT	".text"
+#define _DATA	".data"
+#define _BSS	".bss"
+
+
+#define	SCNHDR	struct external_scnhdr
+#define	SCNHSZ	40
+
+
+/********************** LINE NUMBERS **********************/
+
+/* 1 line number entry for every "breakpointable" source line in a section.
+ * Line numbers are grouped on a per function basis; first entry in a function
+ * grouping will have l_lnno = 0 and in place of physical address will be the
+ * symbol table index of the function name.
+ */
+struct external_lineno {
+	union {
+		char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/
+		char l_paddr[4];	/* (physical) address of line number	*/
+	} l_addr;
+	char l_lnno[4];	/* line number		*/
+};
+
+#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno));
+#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val,  (bfd_byte *) (ext->l_lnno));
+
+#define	LINENO	struct external_lineno
+#define	LINESZ	8
+
+
+/********************** SYMBOLS **********************/
+
+#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
+#define E_FILNMLEN	14	/* # characters in a file name		*/
+#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */
+
+struct external_syment 
+{
+  union {
+    char e_name[E_SYMNMLEN];
+    struct {
+      char e_zeroes[4];
+      char e_offset[4];
+    } e;
+  } e;
+  char e_value[4];
+  char e_scnum[2];
+  char e_type[2];
+  char e_sclass[1];
+  char e_numaux[1];
+};
+
+
+
+#define N_BTMASK	(017)
+#define N_TMASK		(060)
+#define N_BTSHFT	(4)
+#define N_TSHIFT	(2)
+  
+
+union external_auxent {
+	struct {
+		char x_tagndx[4];	/* str, un, or enum tag indx */
+		union {
+			struct {
+			    char  x_lnno[2]; /* declaration line number */
+			    char  x_size[2]; /* str/union/array size */
+			} x_lnsz;
+			char x_fsize[4];	/* size of function */
+		} x_misc;
+		union {
+			struct {		/* if ISFCN, tag, or .bb */
+			    char x_lnnoptr[4];	/* ptr to fcn line # */
+			    char x_endndx[4];	/* entry ndx past block end */
+			} x_fcn;
+			struct {		/* if ISARY, up to 4 dimen. */
+			    char x_dimen[E_DIMNUM][2];
+			} x_ary;
+		} x_fcnary;
+		char x_tvndx[2];		/* tv index */
+	} x_sym;
+
+	union {
+		char x_fname[E_FILNMLEN];
+		struct {
+			char x_zeroes[4];
+			char x_offset[4];
+		} x_n;
+	} x_file;
+
+	struct {
+		char x_scnlen[4];			/* section length */
+		char x_nreloc[2];	/* # relocation entries */
+		char x_nlinno[2];	/* # line numbers */
+	} x_scn;
+
+        struct {
+		char x_tvfill[4];	/* tv fill value */
+		char x_tvlen[2];	/* length of .tv */
+		char x_tvran[2][2];	/* tv range */
+	} x_tv;		/* info about .tv section (in auxent of symbol .tv)) */
+
+
+};
+
+#define	SYMENT	struct external_syment
+#define	SYMESZ	18	
+#define	AUXENT	union external_auxent
+#define	AUXESZ	18
+
+
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+/* The external reloc has an offset field, because some of the reloc
+   types on the h8 don't have room in the instruction for the entire
+   offset - eg the strange jump and high page addressing modes */
+
+struct external_reloc {
+  char r_vaddr[4];
+  char r_symndx[4];
+  char r_offset[4];
+  char r_type[2];
+  char r_stuff[2];
+};
+
+
+#define RELOC struct external_reloc
+#define RELSZ 16
+
+/* SH relocation types.  Not all of these are actually used.  */
+
+#define R_SH_UNUSED	0		/* only used internally */
+#define R_SH_PCREL8 	3		/*  8 bit pcrel 	*/
+#define R_SH_PCREL16 	4		/* 16 bit pcrel 	*/
+#define R_SH_HIGH8  	5		/* high 8 bits of 24 bit address */
+#define R_SH_LOW16 	7		/* low 16 bits of 24 bit immediate */
+#define R_SH_IMM24	6		/* 24 bit immediate */
+#define R_SH_PCDISP8BY4	9  		/* PC rel 8 bits *4 +ve */
+#define R_SH_PCDISP8BY2	10  		/* PC rel 8 bits *2 +ve */
+#define R_SH_PCDISP8    11  		/* 8 bit branch */
+#define R_SH_PCDISP     12  		/* 12 bit branch */
+#define R_SH_IMM32      14    		/* 32 bit immediate */
+#define R_SH_IMM8   	16		/* 8 bit immediate */
+#define R_SH_IMM8BY2    17		/* 8 bit immediate *2 */
+#define R_SH_IMM8BY4    18		/* 8 bit immediate *4 */
+#define R_SH_IMM4   	19		/* 4 bit immediate */
+#define R_SH_IMM4BY2    20		/* 4 bit immediate *2 */
+#define R_SH_IMM4BY4    21		/* 4 bit immediate *4 */
+#define R_SH_PCRELIMM8BY2   22		/* PC rel 8 bits *2 unsigned */
+#define R_SH_PCRELIMM8BY4   23		/* PC rel 8 bits *4 unsigned */
+#define R_SH_IMM16      24    		/* 16 bit immediate */
+
+/* The switch table reloc types are used for relaxing.  They are
+   generated for expressions such as
+     .word L1 - L2
+   The r_offset field holds the difference between the reloc address
+   and L2.  */
+#define R_SH_SWITCH16	25		/* 16 bit switch table entry */
+#define R_SH_SWITCH32	26		/* 32 bit switch table entry */
+
+/* The USES reloc type is used for relaxing.  The compiler will
+   generate .uses pseudo-ops when it finds a function call which it
+   can relax.  The r_offset field of the USES reloc holds the PC
+   relative offset to the instruction which loads the register used in
+   the function call.  */
+#define R_SH_USES	27		/* .uses pseudo-op */
+
+/* The COUNT reloc type is used for relaxing.  The assembler will
+   generate COUNT relocs for addresses referred to by the register
+   loads associated with USES relocs.  The r_offset field of the COUNT
+   reloc holds the number of times the address is references in the
+   object file.  */
+#define R_SH_COUNT	28		/* Count of constant pool uses */
+
+/* The ALIGN reloc type is used for relaxing.  The r_offset field is
+   the power of two to which subsequent portions of the object file
+   must be aligned.  */
+#define R_SH_ALIGN	29		/* .align pseudo-op */
+
+/* The CODE and DATA reloc types are used for aligning load and store
+   instructions.  The assembler will generate a CODE reloc before a
+   block of instructions.  It will generate a DATA reloc before data.
+   A section should be processed assuming it contains data, unless a
+   CODE reloc is seen.  The only relevant pieces of information in the
+   CODE and DATA relocs are the section and the address.  The symbol
+   and offset are meaningless.  */
+#define R_SH_CODE	30		/* start of code */
+#define R_SH_DATA	31		/* start of data */
+
+/* The LABEL reloc type is used for aligning load and store
+   instructions.  The assembler will generate a LABEL reloc for each
+   label within a block of instructions.  This permits the linker to
+   avoid swapping instructions which are the targets of branches.  */
+#define R_SH_LABEL	32		/* label */