| /* |
| * a.out specifics for Sequent Symmetry running Dynix 3.x |
| */ |
| #ifndef A_OUT_DYNIX3_H |
| #define A_OUT_DYNIX3_H |
| |
| #define external_exec dynix_external_exec |
| |
| /* struct exec for Dynix 3 |
| * |
| * a_gdtbl and a_bootstrap are only for standalone binaries. |
| * Shared data fields are not supported by the kernel as of Dynix 3.1, |
| * but are supported by Dynix compiler programs. |
| */ |
| struct dynix_external_exec { |
| unsigned char e_info[4]; |
| unsigned char e_text[4]; |
| unsigned char e_data[4]; |
| unsigned char e_bss[4]; |
| unsigned char e_syms[4]; |
| unsigned char e_entry[4]; |
| unsigned char e_trsize[4]; |
| unsigned char e_drsize[4]; |
| unsigned char e_g_code[8], e_g_data[8], e_g_desc[8]; |
| unsigned char e_shdata[4]; |
| unsigned char e_shbss[4]; |
| unsigned char e_shdrsize[4]; |
| unsigned char e_bootstrap[44]; |
| unsigned char e_reserved[12]; |
| unsigned char e_version[4]; |
| }; |
| |
| #define EXEC_BYTES_SIZE (128) |
| |
| /* |
| * All executables under Dynix are demand paged with read-only text, |
| * Thus no NMAGIC. |
| * |
| * ZMAGIC has a page of 0s at virtual 0, |
| * XMAGIC has an invalid page at virtual 0 |
| */ |
| #define OMAGIC 0x12eb /* .o */ |
| #define ZMAGIC 0x22eb /* zero @ 0, demand load */ |
| #define XMAGIC 0x32eb /* invalid @ 0, demand load */ |
| #define SMAGIC 0x42eb /* standalone, not supported here */ |
| |
| #define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \ |
| (ZMAGIC != N_MAGIC(x)) && \ |
| (XMAGIC != N_MAGIC(x)) && \ |
| (SMAGIC != N_MAGIC(x))) |
| |
| #define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0) |
| |
| #define N_TXTOFF(x) (EXEC_BYTES_SIZE) |
| #define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x)) |
| #define N_SHDATOFF(x) (N_DATOFF(x) + (x).a_data) |
| #define N_TRELOFF(x) (N_SHDATOFF(x) + (x).a_shdata) |
| #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) |
| #define N_SHDRELOFF(x) (N_DRELOFF(x) + (x).a_drsize) |
| #define N_SYMOFF(x) (N_SHDRELOFF(x) + (x).a_shdrsize) |
| #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) |
| |
| #define N_TXTADDR(x) \ |
| (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \ |
| : TEXT_START_ADDR + EXEC_BYTES_SIZE) |
| |
| #define N_TXTSIZE(x) \ |
| (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x).a_text) \ |
| : ((x).a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE)) |
| |
| #endif /* A_OUT_DYNIX3_H */ |