1*3d8817e4Smiod /* a.out specifics for Sequent Symmetry running Dynix 3.x 2*3d8817e4Smiod 3*3d8817e4Smiod Copyright 2001 Free Software Foundation, Inc. 4*3d8817e4Smiod 5*3d8817e4Smiod This program is free software; you can redistribute it and/or modify 6*3d8817e4Smiod it under the terms of the GNU General Public License as published by 7*3d8817e4Smiod the Free Software Foundation; either version 2 of the License, or 8*3d8817e4Smiod (at your option) any later version. 9*3d8817e4Smiod 10*3d8817e4Smiod This program is distributed in the hope that it will be useful, 11*3d8817e4Smiod but WITHOUT ANY WARRANTY; without even the implied warranty of 12*3d8817e4Smiod MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13*3d8817e4Smiod GNU General Public License for more details. 14*3d8817e4Smiod 15*3d8817e4Smiod You should have received a copy of the GNU General Public License 16*3d8817e4Smiod along with this program; if not, write to the Free Software 17*3d8817e4Smiod Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 18*3d8817e4Smiod 19*3d8817e4Smiod #ifndef A_OUT_DYNIX3_H 20*3d8817e4Smiod #define A_OUT_DYNIX3_H 21*3d8817e4Smiod 22*3d8817e4Smiod #define external_exec dynix_external_exec 23*3d8817e4Smiod 24*3d8817e4Smiod /* struct exec for Dynix 3 25*3d8817e4Smiod 26*3d8817e4Smiod a_gdtbl and a_bootstrap are only for standalone binaries. 27*3d8817e4Smiod Shared data fields are not supported by the kernel as of Dynix 3.1, 28*3d8817e4Smiod but are supported by Dynix compiler programs. */ 29*3d8817e4Smiod struct dynix_external_exec 30*3d8817e4Smiod { 31*3d8817e4Smiod unsigned char e_info[4]; 32*3d8817e4Smiod unsigned char e_text[4]; 33*3d8817e4Smiod unsigned char e_data[4]; 34*3d8817e4Smiod unsigned char e_bss[4]; 35*3d8817e4Smiod unsigned char e_syms[4]; 36*3d8817e4Smiod unsigned char e_entry[4]; 37*3d8817e4Smiod unsigned char e_trsize[4]; 38*3d8817e4Smiod unsigned char e_drsize[4]; 39*3d8817e4Smiod unsigned char e_g_code[8]; 40*3d8817e4Smiod unsigned char e_g_data[8]; 41*3d8817e4Smiod unsigned char e_g_desc[8]; 42*3d8817e4Smiod unsigned char e_shdata[4]; 43*3d8817e4Smiod unsigned char e_shbss[4]; 44*3d8817e4Smiod unsigned char e_shdrsize[4]; 45*3d8817e4Smiod unsigned char e_bootstrap[44]; 46*3d8817e4Smiod unsigned char e_reserved[12]; 47*3d8817e4Smiod unsigned char e_version[4]; 48*3d8817e4Smiod }; 49*3d8817e4Smiod 50*3d8817e4Smiod #define EXEC_BYTES_SIZE (128) 51*3d8817e4Smiod 52*3d8817e4Smiod /* All executables under Dynix are demand paged with read-only text, 53*3d8817e4Smiod Thus no NMAGIC. 54*3d8817e4Smiod 55*3d8817e4Smiod ZMAGIC has a page of 0s at virtual 0, 56*3d8817e4Smiod XMAGIC has an invalid page at virtual 0. */ 57*3d8817e4Smiod #define OMAGIC 0x12eb /* .o */ 58*3d8817e4Smiod #define ZMAGIC 0x22eb /* zero @ 0, demand load */ 59*3d8817e4Smiod #define XMAGIC 0x32eb /* invalid @ 0, demand load */ 60*3d8817e4Smiod #define SMAGIC 0x42eb /* standalone, not supported here */ 61*3d8817e4Smiod 62*3d8817e4Smiod #define N_BADMAG(x) ((OMAGIC != N_MAGIC(x)) && \ 63*3d8817e4Smiod (ZMAGIC != N_MAGIC(x)) && \ 64*3d8817e4Smiod (XMAGIC != N_MAGIC(x)) && \ 65*3d8817e4Smiod (SMAGIC != N_MAGIC(x))) 66*3d8817e4Smiod 67*3d8817e4Smiod #define N_ADDRADJ(x) ((ZMAGIC == N_MAGIC(x) || XMAGIC == N_MAGIC(x)) ? 0x1000 : 0) 68*3d8817e4Smiod 69*3d8817e4Smiod #define N_TXTOFF(x) (EXEC_BYTES_SIZE) 70*3d8817e4Smiod #define N_DATOFF(x) (N_TXTOFF(x) + N_TXTSIZE(x)) 71*3d8817e4Smiod #define N_SHDATOFF(x) (N_DATOFF(x) + (x).a_data) 72*3d8817e4Smiod #define N_TRELOFF(x) (N_SHDATOFF(x) + (x).a_shdata) 73*3d8817e4Smiod #define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize) 74*3d8817e4Smiod #define N_SHDRELOFF(x) (N_DRELOFF(x) + (x).a_drsize) 75*3d8817e4Smiod #define N_SYMOFF(x) (N_SHDRELOFF(x) + (x).a_shdrsize) 76*3d8817e4Smiod #define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms) 77*3d8817e4Smiod 78*3d8817e4Smiod #define N_TXTADDR(x) \ 79*3d8817e4Smiod (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? 0 \ 80*3d8817e4Smiod : TEXT_START_ADDR + EXEC_BYTES_SIZE) 81*3d8817e4Smiod 82*3d8817e4Smiod #define N_TXTSIZE(x) \ 83*3d8817e4Smiod (((OMAGIC == N_MAGIC(x)) || (SMAGIC == N_MAGIC(x))) ? ((x).a_text) \ 84*3d8817e4Smiod : ((x).a_text - N_ADDRADJ(x) - EXEC_BYTES_SIZE)) 85*3d8817e4Smiod 86*3d8817e4Smiod #endif /* A_OUT_DYNIX3_H */ 87