diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/alpha/a.out.h')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/alpha/a.out.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/alpha/a.out.h b/ports/sysdeps/unix/sysv/linux/alpha/a.out.h new file mode 100644 index 0000000000..a7699f0fe0 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/alpha/a.out.h @@ -0,0 +1,197 @@ +#ifndef __A_OUT_GNU_H__ +#define __A_OUT_GNU_H__ + +#include <bits/a.out.h> + +#define __GNU_EXEC_MACROS__ + +/* + * OSF/1 ECOFF header structs. ECOFF files consist of: + * - a file header (struct filehdr), + * - an a.out header (struct aouthdr), + * - one or more section headers (struct scnhdr). + * The filhdr's "f_nscns" field contains the + * number of section headers. + */ + +struct filehdr +{ + /* OSF/1 "file" header */ + unsigned short f_magic, f_nscns; + unsigned int f_timdat; + unsigned long f_symptr; + unsigned int f_nsyms; + unsigned short f_opthdr, f_flags; +}; + +struct aouthdr +{ + unsigned long info; /* After that it looks quite normal.. */ + unsigned long tsize; + unsigned long dsize; + unsigned long bsize; + unsigned long entry; + unsigned long text_start; /* With a few additions that actually make sense. */ + unsigned long data_start; + unsigned long bss_start; + unsigned int gprmask, fprmask; /* Bitmask of general & floating point regs used in binary. */ + unsigned long gpvalue; +}; + +struct scnhdr +{ + char s_name[8]; + unsigned long s_paddr; + unsigned long s_vaddr; + unsigned long s_size; + unsigned long s_scnptr; + unsigned long s_relptr; + unsigned long s_lnnoptr; + unsigned short s_nreloc; + unsigned short s_nlnno; + unsigned int s_flags; +}; + +struct exec +{ + /* OSF/1 "file" header */ + struct filehdr fh; + struct aouthdr ah; +}; + +#define a_info ah.info +#define a_text ah.tsize +#define a_data ah.dsize +#define a_bss ah.bsize +#define a_entry ah.entry +#define a_textstart ah.text_start +#define a_datastart ah.data_start +#define a_bssstart ah.bss_start +#define a_gprmask ah.gprmask +#define a_fprmask ah.fprmask +#define a_gpvalue ah.gpvalue + + +#define AOUTHSZ sizeof(struct aouthdr) +#define SCNHSZ sizeof(struct scnhdr) +#define SCNROUND 16 + +enum machine_type +{ + M_OLDSUN2 = 0, + M_68010 = 1, + M_68020 = 2, + M_SPARC = 3, + M_386 = 100, + M_MIPS1 = 151, + M_MIPS2 = 152 +}; + +#define N_MAGIC(exec) ((exec).a_info & 0xffff) +#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff)) +#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff) +#define N_SET_INFO(exec, magic, type, flags) \ + ((exec).a_info = ((magic) & 0xffff) \ + | (((int)(type) & 0xff) << 16) \ + | (((flags) & 0xff) << 24)) +#define N_SET_MAGIC(exec, magic) \ + ((exec).a_info = ((exec).a_info & 0xffff0000) | ((magic) & 0xffff)) +#define N_SET_MACHTYPE(exec, machtype) \ + ((exec).a_info = \ + ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16)) +#define N_SET_FLAGS(exec, flags) \ + ((exec).a_info = \ + ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) + +/* Code indicating object file or impure executable. */ +#define OMAGIC 0407 +/* Code indicating pure executable. */ +#define NMAGIC 0410 +/* Code indicating demand-paged executable. */ +#define ZMAGIC 0413 +/* This indicates a demand-paged executable with the header in the text. + The first page is unmapped to help trap NULL pointer references. */ +#define QMAGIC 0314 +/* Code indicating core file. */ +#define CMAGIC 0421 + +#define N_TRSIZE(x) 0 +#define N_DRSIZE(x) 0 +#define N_SYMSIZE(x) 0 +#define N_BADMAG(x) \ + (N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \ + && N_MAGIC(x) != ZMAGIC && N_MAGIC(x) != QMAGIC) +#define _N_HDROFF(x) (1024 - sizeof (struct exec)) +#define N_TXTOFF(x) \ + ((long) N_MAGIC(x) == ZMAGIC ? 0 : \ + (sizeof (struct exec) + (x).fh.f_nscns * SCNHSZ + SCNROUND - 1) \ + & ~(SCNROUND - 1)) + +#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) +#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) +#define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x)) +#define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x)) +#define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x)) + +/* Address of text segment in memory after it is loaded. */ +#define N_TXTADDR(x) ((x).a_textstart) + +/* Address of data segment in memory after it is loaded. */ +#define SEGMENT_SIZE 1024 + +#define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1)) +#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) + +#define N_DATADDR(x) ((x).a_datastart) +#define N_BSSADDR(x) ((x).a_bssstart) + +#if !defined (N_NLIST_DECLARED) +struct nlist +{ + union + { + char *n_name; + struct nlist *n_next; + long n_strx; + } n_un; + unsigned char n_type; + char n_other; + short n_desc; + unsigned long n_value; +}; +#endif /* no N_NLIST_DECLARED. */ + +#define N_UNDF 0 +#define N_ABS 2 +#define N_TEXT 4 +#define N_DATA 6 +#define N_BSS 8 +#define N_FN 15 +#define N_EXT 1 +#define N_TYPE 036 +#define N_STAB 0340 +#define N_INDR 0xa +#define N_SETA 0x14 /* Absolute set element symbol. */ +#define N_SETT 0x16 /* Text set element symbol. */ +#define N_SETD 0x18 /* Data set element symbol. */ +#define N_SETB 0x1A /* Bss set element symbol. */ +#define N_SETV 0x1C /* Pointer to set vector in data area. */ + +#if !defined (N_RELOCATION_INFO_DECLARED) +/* This structure describes a single relocation to be performed. + The text-relocation section of the file is a vector of these structures, + all of which apply to the text section. + Likewise, the data-relocation section applies to the data section. */ + +struct relocation_info +{ + int r_address; + unsigned int r_symbolnum:24; + unsigned int r_pcrel:1; + unsigned int r_length:2; + unsigned int r_extern:1; + unsigned int r_pad:4; +}; +#endif /* no N_RELOCATION_INFO_DECLARED. */ + +#endif /* __A_OUT_GNU_H__ */ |