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Diffstat (limited to 'gdb/osf-share/cma_stack_int.h')
| -rw-r--r-- | gdb/osf-share/cma_stack_int.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/gdb/osf-share/cma_stack_int.h b/gdb/osf-share/cma_stack_int.h new file mode 100644 index 00000000000..bf76f60756e --- /dev/null +++ b/gdb/osf-share/cma_stack_int.h @@ -0,0 +1,136 @@ +/* + * (c) Copyright 1990-1996 OPEN SOFTWARE FOUNDATION, INC. + * (c) Copyright 1990-1996 HEWLETT-PACKARD COMPANY + * (c) Copyright 1990-1996 DIGITAL EQUIPMENT CORPORATION + * (c) Copyright 1991, 1992 Siemens-Nixdorf Information Systems + * To anyone who acknowledges that this file is provided "AS IS" without + * any express or implied warranty: permission to use, copy, modify, and + * distribute this file for any purpose is hereby granted without fee, + * provided that the above copyright notices and this notice appears in + * all source code copies, and that none of the names listed above be used + * in advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. None of these organizations + * makes any representations about the suitability of this software for + * any purpose. + */ +/* + * Header file for stack management (internal to cma_stack.c, but + * separate for convenience, and unit testing). + */ + +#ifndef CMA_STACK_INT +#define CMA_STACK_INT + +/* + * INCLUDE FILES + */ + +#include <cma.h> +#include <cma_queue.h> +#include <cma_list.h> +#include <cma_tcb_defs.h> + +/* + * CONSTANTS AND MACROS + */ + +#define cma___c_first_free_chunk 0 +#define cma___c_min_count 2 /* Smallest number of chunks to leave */ +#define cma___c_end (-1) /* End of free list (flag) */ +#define cma__c_yellow_size 0 + +/* + * Cluster types + */ +#define cma___c_cluster 0 /* Default cluster */ +#define cma___c_bigstack 1 /* Looks like a cluster, but it's a stack */ + + +#define cma___c_null_cluster (cma___t_cluster *)cma_c_null_ptr + + +/* + * TYPEDEFS + */ + +#ifndef __STDC__ +struct CMA__T_INT_STACK; +#endif + +typedef cma_t_natural cma___t_index; /* Type for chunk index */ + +typedef struct CMA___T_CLU_DESC { + cma__t_list list; /* Queue element for cluster list */ + cma_t_integer type; /* Type of cluster */ + cma_t_address stacks; + cma_t_address limit; + } cma___t_clu_desc; + +typedef union CMA___T_MAP_ENTRY { + struct { + cma__t_int_tcb *tcb; /* TCB associated with stack chunk */ + struct CMA__T_INT_STACK *stack; /* Stack desc. ass. with stack chunk */ + } mapped; + struct { + cma___t_index size; /* Number of chunks in block */ + cma___t_index next; /* Next free block */ + } free; + } cma___t_map_entry; + +/* + * NOTE: It is VERY IMPORTANT that both cma___t_cluster and cma___t_bigstack + * begin with the cma___t_clu_desc structure, as there is some code in the + * stack manager that relies on being able to treat both as equivalent! + */ +typedef struct CMA___T_CLUSTER { + cma___t_clu_desc desc; /* Describe this cluster */ + cma___t_map_entry map[cma__c_chunk_count]; /* thread map */ + cma___t_index free; /* First free chunk index */ + } cma___t_cluster; + +/* + * NOTE: It is VERY IMPORTANT that both cma___t_cluster and cma___t_bigstack + * begin with the cma___t_clu_desc structure, as there is some code in the + * stack manager that relies on being able to treat both as equivalent! + */ +typedef struct CMA___T_BIGSTACK { + cma___t_clu_desc desc; /* Describe this cluster */ + cma__t_int_tcb *tcb; /* TCB associated with stack */ + struct CMA__T_INT_STACK *stack; /* Stack desc. ass. with stack */ + cma_t_natural size; /* Size of big stack */ + cma_t_boolean in_use; /* Set if allocated */ + } cma___t_bigstack; + +#if _CMA_PROTECT_MEMORY_ +typedef struct CMA___T_INT_HOLE { + cma__t_queue link; /* Link holes together */ + cma_t_boolean protected; /* Set when pages are protected */ + cma_t_address first; /* First protected byte */ + cma_t_address last; /* Last protected byte */ + } cma___t_int_hole; +#endif + +typedef struct CMA__T_INT_STACK { + cma__t_object header; /* Common header (sequence, type info */ + cma__t_int_attr *attributes; /* Backpointer to attr obj */ + cma___t_cluster *cluster; /* Stack's cluster */ + cma_t_address stack_base; /* base address of stack */ + cma_t_address yellow_zone; /* first address of yellow zone */ + cma_t_address last_guard; /* last address of guard pages */ + cma_t_natural first_chunk; /* First chunk allocated */ + cma_t_natural chunk_count; /* Count of chunks allocated */ + cma__t_int_tcb *tcb; /* TCB backpointer */ +#if _CMA_PROTECT_MEMORY_ + cma___t_int_hole hole; /* Description of hole */ +#endif + } cma__t_int_stack; + +/* + * GLOBAL DATA + */ + +/* + * INTERNAL INTERFACES + */ + +#endif |