diff options
Diffstat (limited to 'gprofng/src/stab.h')
| -rw-r--r-- | gprofng/src/stab.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/gprofng/src/stab.h b/gprofng/src/stab.h new file mode 100644 index 0000000..4610105 --- /dev/null +++ b/gprofng/src/stab.h @@ -0,0 +1,205 @@ +/* Copyright (C) 2021 Free Software Foundation, Inc. + Contributed by Oracle. + + This file is part of GNU Binutils. + + 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, 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, 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* + * This file gives definitions supplementing <a.out.h> + * for debugging symbol table entries. + * These entries must have one of the N_STAB bits on, + * and are subject to relocation according to the masks in <a.out.h> + * on 4.x (stabs not relocated on SVR4). + */ + +#ifndef _STAB_H +#define _STAB_H + +/* this file also contains fragments of a.out.h relevant to + * support of stab processing within ELF files + * (when a.out.h is not available) + */ +struct stab +{ + unsigned n_strx; /* index into file string table */ + unsigned char n_type; /* type flag (N_TEXT,..) */ + char n_other; /* used by N_SLINE stab */ + short n_desc; /* see stabs documentation */ + unsigned n_value; /* value of symbol (or sdb offset) */ +}; + +/* patchtypes for N_PATCH stab (n_desc field) */ +#define P_BITFIELD 0x1 +#define P_SPILL 0x2 +#define P_SCOPY 0x3 + +/* markers for N_CODETAG stab (n_other field) */ +#define CODETAG_BITFIELD 0x1 /* load/store of a bit field */ +#define CODETAG_SPILL 0x2 /* spill of registers */ +#define CODETAG_SCOPY 0x3 /* structure copy load/store */ +#define CODETAG_FSTART 0x4 /* points to first inst of new frame (0==leaf)*/ +#define CODETAG_END_CTORS 0x5 /* end of calls to super-class constructors */ +/* UNUSED 0x6 DW_ATCF_SUN_branch_target in dwarf, not used in stabs */ +#define CODETAG_STACK_PROBE 0x7 /* marks insns which probe the stack memory */ + +/* + * Simple values for n_type. + */ +#define N_UNDF 0x0 /* undefined */ +#define N_ABS 0x2 /* absolute */ +#define N_TEXT 0x4 /* text */ +#define N_DATA 0x6 /* data */ +#define N_BSS 0x8 /* bss */ +#define N_COMM 0x12 /* common (internal to ld) */ +#define N_FN 0x1f /* file name symbol */ +#define N_EXT 01 /* external bit, or'ed in */ +#define N_TYPE 0x1e /* mask for all the type bits */ + +/* + * maximum length of stab string before using continuation stab. + * (this is just a suggested limit), assembler has no limit. + */ +#define MAX_STAB_STR_LEN 250 + +/* + * for symbolic debuggers: + */ +#define N_GSYM 0x20 /* global symbol: name,,0,type,0 */ +#define N_FNAME 0x22 /* procedure name (f77 kludge): name,,0 */ +#define N_FUN 0x24 /* procedure: name,,0,linenumber,0 */ +#define N_OUTL 0x25 /* outlined func: name,,0,linenumber,0 */ +#define N_STSYM 0x26 /* static symbol: name,,0,type,0 or section relative */ +#define N_TSTSYM 0x27 /* thread static symbol: Ttdata.data */ +#define N_LCSYM 0x28 /* .lcomm symbol: name,,0,type,0 or section relative */ +#define N_TLCSYM 0x29 /* thread local symbol: Ttbss.bss */ +#define N_MAIN 0x2a /* name of main routine : name,,0,0,0 */ +#define N_ROSYM 0x2c /* ro_data: name,,0,type,0 or section relative */ +#define N_FLSYM 0x2e /* fragmented data: name,,0,type,0 */ +#define N_TFLSYM 0x2f /* thread fragmented data: name,,0,type,0 */ +#define N_PC 0x30 /* global pascal symbol: name,,0,subtype,line */ +#define N_CMDLINE 0x34 /* command line info */ +#define N_OBJ 0x38 /* object file path or name */ +#define N_OPT 0x3c /* compiler options */ +#define N_RSYM 0x40 /* register sym: name,,0,type,register */ +#define N_SLINE 0x44 /* src line: 0,,0,linenumber,function relative */ +#define N_XLINE 0x45 /* h.o. src line: 0,,0,linenumber>>16,0 */ +#define N_ILDPAD 0x4c /* now used as ild pad stab value=strtab delta + * was designed for "function start.end" */ +#define N_SSYM 0x60 /* structure elt: name,,0,type,struct_offset */ +#define N_ENDM 0x62 /* last stab emitted for object module */ +#define N_SO 0x64 /* source file name: name,,0,0,0 */ +#define N_MOD 0x66 /* f90 module: name,,0,0,0 */ +#define N_EMOD 0x68 /* end of f90 module: name,,0,0,0 */ +#define N_READ_MOD 0x6a /* use of f90 module: name;locallist,,0,0,0 */ +#define N_ALIAS 0x6c /* alias name: name,,0,0,0 */ +#define N_LSYM 0x80 /* local sym: name,,0,type,offset */ +#define N_BINCL 0x82 /* header file: name,,0,0,0 */ +#define N_SOL 0x84 /* #included file name: name,,0,0,0 */ +#define N_PSYM 0xa0 /* parameter: name,,0,type,offset */ +#define N_EINCL 0xa2 /* end of include file */ +#define N_ENTRY 0xa4 /* alternate entry: name,linenumber,0 */ +#define N_SINCL 0xa6 /* shared include file */ +#define N_LBRAC 0xc0 /* left bracket: 0,,0,nesting level,function relative */ +#define N_EXCL 0xc2 /* excluded include file */ +#define N_USING 0xc4 /* C++ using command */ +#define N_ISYM 0xc6 /* position independent type symbol, internal */ +#define N_ESYM 0xc8 /* position independent type symbol, external */ +#define N_PATCH 0xd0 /* Instruction to be ignored by run-time checking. */ +#define N_CONSTRUCT 0xd2 /* C++ constructor call. */ +#define N_DESTRUCT 0xd4 /* C++ destructor call. */ +#define N_CODETAG 0xd8 /* Generic code tag */ +#define N_FUN_CHILD 0xd9 /* Identifies a child function */ +#define N_RBRAC 0xe0 /* right bracket: 0,,0,nesting level,function relative */ +#define N_BCOMM 0xe2 /* begin common: name,, */ +#define N_TCOMM 0xe3 /* begin task common: name,, */ +#define N_ECOMM 0xe4 /* end task_common/common: name,, */ +#define N_XCOMM 0xe6 /* excluded common block */ +#define N_ECOML 0xe8 /* end common (local name): ,,address */ +#define N_WITH 0xea /* pascal with statement: type,,0,0,offset */ +#define N_LENG 0xfe /* second stab entry with length information */ + +/* + * for analyzer (cache profile feedback support) + */ +#define N_CPROF 0xf0 /* annotation for cache profile feedback */ + +/* + * n_descr values used in N_CPROF stabs. The n_descr field of + * an N_CPROF stab identifies the type of table whose location + * is defined by the N_CPROF stab. + */ +typedef enum n_cprof_instr_type_t +{ + N_CPROF_INSTR_TYPE_LOAD = 0, /* profiled load ops */ + N_CPROF_INSTR_TYPE_STORE, /* profiled store ops */ + N_CPROF_INSTR_TYPE_PREFETCH, /* profiled prefetch ops */ + N_CPROF_INSTR_TYPE_BRTARGET, /* branch target locations */ + N_CPROF_INSTR_TYPE_NTYPES /* number of types */ +} n_cprof_instr_type_t; + +/* + * for code browser only + */ +#define N_BROWS 0x48 /* path to associated .cb file */ + +/* + * for functions -- n_other bits for N_FUN stab + */ +#define N_FUN_PURE (1 << 0) +#define N_FUN_ELEMENTAL (1 << 1) +#define N_FUN_RECURSIVE (1 << 2) +#define N_FUN_AMD64_PARMDUMP (1 << 3) + +/* + * for variables -- n_other bits for N_LSYM, N_GSYM, N_LCSYM, N_STSYM, ... + */ +#define N_SYM_OMP_TLS (1 << 3) + +/* + * Optional language designations for N_SO (n_desc field) + */ +#define N_SO_AS 1 /* Assembler */ +#define N_SO_C 2 /* C */ +#define N_SO_ANSI_C 3 /* ANSI C */ +#define N_SO_CC 4 /* C++ */ +#define N_SO_FORTRAN 5 /* Fortran 77 */ +#define N_SO_FORTRAN77 5 /* Fortran 77 */ +#define N_SO_PASCAL 6 /* Pascal */ +#define N_SO_FORTRAN90 7 /* Fortran 90 */ +#define N_SO_JAVA 8 /* Java */ +#define N_SO_C99 9 /* C99 */ + +/* + * Floating point type values (encoded in "R" type specification string) + */ +#define NF_NONE 0 /* Undefined type */ +#define NF_SINGLE 1 /* Float IEEE 32 bit floating point */ +#define NF_DOUBLE 2 /* Double IEEE 64 bit floating point */ +#define NF_COMPLEX 3 /* Complex (2 32bit floats) */ +#define NF_COMPLEX16 4 /* Complex (2 64bit doubles) */ +#define NF_COMPLEX32 5 /* Complex (2 128bit long doubles) */ +#define NF_LDOUBLE 6 /* Long double 128 bit floating point */ +#define NF_INTERARITH 7 /* Interval (2 32bit floats) */ +#define NF_DINTERARITH 8 /* Interval (2 64bit doubles) */ +#define NF_QINTERARITH 9 /* Interval (2 128bit long doubles) */ +#define NF_IMAGINARY 10 /* Imaginary (1 32bit floats) */ +#define NF_DIMAGINARY 11 /* Imaginary (1 64bit doubles) */ +#define NF_QIMAGINARY 12 /* Imaginary (1 128bit long doubles) */ + +#endif + + |