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2ine-tms34010/lib2ine.h
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Ryan C. Gordon 14073f3361 Added a basic config file parser to lib2ine. 
This will let the app set up some state about the OS/2 "system", like what
Unix paths are mapped to which OS/2 drive letters, system vars, etc.

This reads from /etc/2ine.cfg, and then tries a copy in the user's local
config dir to add/override settings.

This mostly doesn't do anything yet, but the framework is there for adding
stuff, and the drive letter mapping is done, even if nothing is using it.
2018-06-24 02:40:36 -04:00

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/**
* 2ine; an OS/2 emulator for Linux.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
/* lib2ine is support code and data that is common between various native
reimplementations of the OS/2 API, and the OS/2 binary loader. */
#ifndef _INCL_LIB2INE_H_
#define _INCL_LIB2INE_H_ 1
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
typedef uint8_t uint8;
typedef uint16_t uint16;
typedef uint32_t uint32;
typedef uint64_t uint64;
typedef int8_t sint8;
typedef int16_t sint16;
typedef int32_t sint32;
typedef int64_t sint64;
typedef unsigned int uint;
#ifndef _STUBBED
#define _STUBBED(x, what) do { \
static int seen_this = 0; \
if (!seen_this) { \
seen_this = 1; \
fprintf(stderr, "2INE " what ": %s at %s (%s:%d)\n", x, __FUNCTION__, __FILE__, __LINE__); \
} \
} while (0)
#endif
#if 0
#ifndef STUBBED
#define STUBBED(x) _STUBBED(x, "STUBBED")
#endif
#ifndef FIXME
#define FIXME(x) _STUBBED(x, "FIXME")
#endif
#endif
#ifndef STUBBED
#define STUBBED(x) do {} while (0)
#endif
#ifndef FIXME
#define FIXME(x) do {} while (0)
#endif
#pragma pack(push, 1)
typedef struct LxHeader
{
uint8 magic_l;
uint8 magic_x;
uint8 byte_order;
uint8 word_order;
uint32 lx_version;
uint16 cpu_type;
uint16 os_type;
uint32 module_version;
uint32 module_flags;
uint32 module_num_pages;
uint32 eip_object;
uint32 eip;
uint32 esp_object;
uint32 esp;
uint32 page_size;
uint32 page_offset_shift;
uint32 fixup_section_size;
uint32 fixup_section_checksum;
uint32 loader_section_size;
uint32 loader_section_checksum;
uint32 object_table_offset;
uint32 module_num_objects;
uint32 object_page_table_offset;
uint32 object_iter_pages_offset;
uint32 resource_table_offset;
uint32 num_resource_table_entries;
uint32 resident_name_table_offset;
uint32 entry_table_offset;
uint32 module_directives_offset;
uint32 num_module_directives;
uint32 fixup_page_table_offset;
uint32 fixup_record_table_offset;
uint32 import_module_table_offset;
uint32 num_import_mod_entries;
uint32 import_proc_table_offset;
uint32 per_page_checksum_offset;
uint32 data_pages_offset;
uint32 num_preload_pages;
uint32 non_resident_name_table_offset;
uint32 non_resident_name_table_len;
uint32 non_resident_name_table_checksum;
uint32 auto_ds_object_num;
uint32 debug_info_offset;
uint32 debug_info_len;
uint32 num_instance_preload;
uint32 num_instance_demand;
uint32 heapsize;
} LxHeader;
typedef struct LxObjectTableEntry
{
uint32 virtual_size;
uint32 reloc_base_addr;
uint32 object_flags;
uint32 page_table_index;
uint32 num_page_table_entries;
uint32 reserved;
} LxObjectTableEntry;
typedef struct LxObjectPageTableEntry
{
uint32 page_data_offset;
uint16 data_size;
uint16 flags;
} LxObjectPageTableEntry;
typedef struct LxResourceTableEntry
{
uint16 type_id;
uint16 name_id;
uint32 resource_size;
uint16 object;
uint32 offset;
} LxResourceTableEntry;
typedef struct NeHeader
{
uint8 magic_n;
uint8 magic_e;
uint8 linker_version;
uint8 linker_revision;
uint16 entry_table_offset;
uint16 entry_table_size;
uint32 crc32;
uint16 module_flags;
uint16 auto_data_segment;
uint16 dynamic_heap_size;
uint16 stack_size;
uint16 reg_ip;
uint16 reg_cs;
uint16 reg_sp;
uint16 reg_ss;
uint16 num_segment_table_entries;
uint16 num_module_ref_table_entries;
uint16 non_resident_name_table_size;
uint16 segment_table_offset;
uint16 resource_table_offset;
uint16 resident_name_table_offset;
uint16 module_reference_table_offset;
uint16 imported_names_table_offset;
uint32 non_resident_name_table_offset;
uint16 num_movable_entries;
uint16 sector_alignment_shift_count;
uint16 num_resource_entries;
uint8 exe_type;
uint8 os2_exe_flags;
uint8 reserved[8];
} NeHeader;
typedef struct NeSegmentTableEntry
{
uint16 offset;
uint16 size;
uint16 segment_flags;
uint16 minimum_allocation;
} NeSegmentTableEntry;
#pragma pack(pop)
typedef struct LxMmaps
{
void *mapped;
void *addr;
size_t size;
int prot;
uint16 alias; // 16:16 alias, if one.
} LxMmaps;
typedef struct LxExport
{
uint32 ordinal;
const char *name; // can be NULL
void *addr;
const LxMmaps *object;
} LxExport;
struct LxModule;
typedef struct LxModule LxModule;
struct LxModule
{
uint32 refcount;
int is_lx; // 1 if an LX module, 0 if NE.
union
{
LxHeader lx;
NeHeader ne;
} header;
char name[256]; // !!! FIXME: allocate this.
LxModule **dependencies;
uint32 num_dependencies;
LxMmaps *mmaps;
uint32 num_mmaps;
const LxExport *exports;
uint32 num_exports;
void *nativelib;
uint32 eip;
uint32 esp;
uint16 autodatasize; // only used for NE binaries.
int initialized;
char *os2path; // absolute path to module, in OS/2 format
// !!! FIXME: put this elsewhere?
uint32 signal_exception_focus_count;
LxModule *prev; // all loaded modules are in a doubly-linked list.
LxModule *next; // all loaded modules are in a doubly-linked list.
};
#pragma pack(push, 1)
typedef struct LxTIB2
{
uint32 tib2_ultid;
uint32 tib2_ulpri;
uint32 tib2_version;
uint16 tib2_usMCCount;
uint16 tib2_fMCForceFlag;
} LxTIB2;
typedef struct LxTIB
{
void *tib_pexchain;
void *tib_pstack;
void *tib_pstacklimit;
LxTIB2 *tib_ptib2;
uint32 tib_version;
uint32 tib_ordinal;
} LxTIB;
typedef struct LxPIB
{
uint32 pib_ulpid;
uint32 pib_ulppid;
void *pib_hmte;
char *pib_pchcmd;
char *pib_pchenv;
uint32 pib_flstatus;
uint32 pib_ultype;
} LxPIB;
#pragma pack(pop)
// We put the 128 bytes of TLS slots (etc) after the TIB structs.
typedef struct LxPostTIB
{
uint32 tls[32];
void *anchor_block;
} LxPostTIB;
#define LXTIBSIZE (sizeof (LxTIB) + sizeof (LxTIB2) + sizeof (LxPostTIB))
#define LX_MAX_LDT_SLOTS 8192
typedef struct LxLoaderState
{
LxModule *loaded_modules;
LxModule *main_module;
uint8 main_tibspace[LXTIBSIZE];
LxPIB pib;
int using_lx_loader;
int subprocess;
int running;
int trace_native;
int trace_events;
char *drives[26]; // mount points, A: through Z: ... NULL if unmounted.
uint8 main_tib_selector;
uint32 mainstacksize;
uint16 original_cs;
uint16 original_ds;
uint16 original_es;
uint16 original_ss;
uint32 *ldt; //[LX_MAX_LDT_SLOTS];
char *libpath;
uint32 libpathlen;
uint32 *tlspage;
uint32 tlsmask; // one bit for each TLS slot in use.
uint8 tlsallocs[32]; // number of TLS slots allocated in one block, indexed by starting block (zero if not the starting block).
void (*dosExit)(uint32 action, uint32 result);
void (*initOs2Tib)(uint8 *tibspace, void *_topOfStack, const size_t stacklen, const uint32 tid);
uint16 (*setOs2Tib)(uint8 *tibspace);
LxTIB *(*getOs2Tib)(void);
void (*deinitOs2Tib)(const uint16 selector);
void *(*allocSegment)(uint16 *selector, const int iscode);
void (*freeSegment)(const uint16 selector);
int (*findSelector)(const uint32 addr, uint16 *outselector, uint16 *outoffset, int iscode);
void (*freeSelector)(const uint16 selector);
void *(*convert1616to32)(const uint32 addr1616);
uint32 (*convert32to1616)(void *addr32);
LxModule *(*loadModule)(const char *modname);
char *(*makeUnixPath)(const char *os2path, uint32 *err);
void __attribute__((noreturn)) (*terminate)(const uint32 exitcode);
} LxLoaderState;
typedef const LxExport *(*LxNativeModuleInitEntryPoint)(uint32 *lx_num_exports);
typedef void (*LxNativeModuleDeinitEntryPoint)(void);
// !!! FIXME: need to change this symbol name.
extern __attribute__((visibility("default"))) LxLoaderState GLoaderState;
#define LX_NATIVE_CONSTRUCTOR(modname) void __attribute__((constructor)) lxNativeConstructor_##modname(void)
#define LX_NATIVE_DESTRUCTOR(modname) void __attribute__((destructor)) lxNativeDestructor_##modname(void)
#endif
// end of lib2ine.h ...
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