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debugmem.cpp
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debugmem.cpp
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/*
*
* Combined Enforcer, MungWall and SegTracker emulation.
*
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include "options.h"
#include "memory.h"
#include "newcpu.h"
#include "debug.h"
#include "debugmem.h"
#include "filesys.h"
#include "zfile.h"
#include "uae.h"
#include "fsdb.h"
#include "rommgr.h"
#define ELFMODE_NORMAL 0
#define ELFMODE_ROM 1
#define ELFMODE_DEBUGMEM 2
#define ELF_ALIGN_MASK 7
#define N_GSYM 0x20
#define N_FUN 0x24
#define N_STSYM 0x26
#define N_LCSYM 0x28
#define N_MAIN 0x2a
#define N_ROSYM 0x2c
#define N_RSYM 0x40
#define N_SLINE 0x44
#define N_DSLINE 0x46
#define N_SSYM 0x60
#define N_SO 0x64
#define N_LSYM 0x80
#define N_SOL 0x84
#define N_PSYM 0xa0
#define N_EINCL 0xa2
#define N_LBRAC 0xc0
#define N_RBRAC 0xe0
#define MAX_SOURCELINELEN 100
static mem_get_func debugmem_func_lgeti;
static mem_get_func debugmem_func_wgeti;
static mem_get_func debugmem_func_lget;
static mem_get_func debugmem_func_wget;
static mem_get_func debugmem_func_bget;
static mem_put_func debugmem_func_lput;
static mem_put_func debugmem_func_wput;
static mem_put_func debugmem_func_bput;
static xlate_func debugmem_func_xlate;
bool debugmem_initialized;
static bool debug_waiting;
static uaecptr debug_task;
static uae_u8 *exec_thistask;
static int executable_last_segment;
static bool libraries_loaded, fds_loaded;
static bool debugmem_mapped;
static int debugstack_word_state;
static uaecptr debugstack_word_addr;
static uaecptr debugstack_word_val;
static bool break_stack_pop, break_stack_push, break_stack_s;
static bool debugmem_active;
static int stackframemode;
uae_u32 debugmem_chiplimit;
bool debugmem_trace;
#define MAX_DEBUGMEMALLOCS 10000
#define MAX_DEBUGSEGS 1000
#define MAX_DEBUGSYMS 10000
#define MAX_STACKVARS 10000
#define MAX_DEBUGCODEFILES 10000
#define MAX_STACKFRAMES 100
struct debugstackframe
{
uaecptr current_pc;
uaecptr branch_pc;
uaecptr next_pc;
uaecptr stack;
uae_u32 regs[16];
uae_u16 sr;
};
static struct debugstackframe *stackframes, *stackframessuper;
static int stackframecnt, stackframecntsuper;
static uae_u32 debugmemptr;
struct stab
{
TCHAR *string;
uae_u8 type;
uae_u8 other;
uae_u16 desc;
uae_u32 val;
};
static struct stab *stabs;
static int stabscount;
struct stabtype
{
TCHAR *name;
uae_u32 id;
};
struct debugcodefile
{
const TCHAR *name, *path;
int length;
uae_u8 *data;
int lines;
uae_u8 **lineptr;
struct stabtype *stabtypes;
int stabtypecount;
uae_u32 start_pc;
uae_u32 end_pc;
};
static struct debugcodefile **codefiles;
static int codefilecnt;
struct linemapping
{
struct debugcodefile *file;
int line;
};
static struct linemapping *linemap;
static int linemapsize;
#define SYMBOL_LOCAL 0
#define SYMBOL_GLOBAL 1
#define SYMBOLTYPE_FUNC 1
struct debugsymbol
{
TCHAR *name;
uae_u32 segment;
uae_u32 allocid;
uae_u32 value;
uae_u32 flags;
uae_u32 type;
struct debugmemallocs *section;
void *data;
};
static struct debugsymbol **symbols;
static int symbolcnt, symbolindex;
struct libname
{
TCHAR *name;
uae_char *aname;
uae_u32 id;
uae_u32 base;
};
static struct libname *libnames;
static int libnamecnt;
struct libsymbol
{
struct libname *lib;
TCHAR *name;
uae_u32 value;
};
static struct libsymbol *libsymbols;
static int libsymbolcnt;
struct stackvar
{
TCHAR *name;
uae_u32 offset;
struct debugsymbol *func;
};
static struct stackvar **stackvars;
static int stackvarcnt;
#define DEBUGALLOC_HUNK 1
#define DEBUGALLOC_ALLOCMEM 2
#define DEBUGALLOC_ALLOCVEC 3
#define DEBUGALLOC_SEG 4
struct debugmemallocs
{
uae_u16 type;
TCHAR *name;
uae_u32 id;
uae_u16 internalid;
uae_u32 parentid;
uae_u32 idtype;
uaecptr start;
uae_u32 size;
uae_u32 start_page;
uae_u32 pages;
uaecptr pc;
uae_u32 data;
uae_u32 relative_start;
};
static struct debugmemallocs **allocs;
static int alloccnt;
#define HUNK_GAP 32768
#define PAGE_SIZE 256
#define PAGE_SIZE_MASK (PAGE_SIZE - 1)
#define DEBUGMEM_READ 0x01
#define DEBUGMEM_WRITE 0x02
#define DEBUGMEM_FETCH 0x04
#define DEBUGMEM_INITIALIZED 0x08
#define DEBUGMEM_STARTBLOCK 0x10
#define DEBUGMEM_ALLOCATED 0x40
#define DEBUGMEM_INUSE 0x80
#define DEBUGMEM_PARTIAL 0x100
#define DEBUGMEM_NOSTACKCHECK 0x200
#define DEBUGMEM_WRITE_NOCACHEFLUSH 0x400
#define DEBUGMEM_STACK 0x1000
struct debugmemdata
{
uae_u16 id;
uae_u16 flags;
uae_u8 unused_start;
uae_u8 unused_end;
uae_u8 state[PAGE_SIZE];
};
static struct debugmemdata **dmd;
static int totalmemdata;
struct debugsegtracker
{
TCHAR *name;
uae_u32 allocid;
uaecptr resident;
};
static struct debugsegtracker **dsegt;
static int segtrackermax, segtrackerindex;
static uae_u32 inhibit_break, last_break;
static uae_u8 *lebx(uae_u8 *p, uae_u32 *v)
{
uae_u32 val = 0;
for (;;) {
uae_u8 b = *p++;
val |= b & 0x7f;
if (!(b & 0x80))
break;
val <<= 7;
}
*v = val;
return p;
}
bool debugmem_break(int type)
{
if (inhibit_break & (1 << type))
return false;
last_break = type;
activate_debugger_new();
return true;
}
static bool debugmem_break_pc(int type, uaecptr pc, int len)
{
if (inhibit_break & (1 << type))
return false;
last_break = type;
activate_debugger_new_pc(pc, len);
return true;
}
bool debugmem_inhibit_break(int mode)
{
if (mode < 0) {
inhibit_break = 0;
return true;
} else if (mode > 0) {
inhibit_break = 0xffffffff;
return true;
} else {
inhibit_break ^= 1 << last_break;
}
return (inhibit_break & (1 << last_break)) != 0;
}
static void debugreportsegment(struct debugsegtracker *seg, bool verbose)
{
struct debugmemallocs *alloc = allocs[seg->allocid];
int parentid = alloc->id;
for (int i = 0; i < MAX_DEBUGMEMALLOCS; i++) {
struct debugmemallocs *a = allocs[i];
if (a->parentid == parentid) {
if (verbose) {
console_out_f(_T("Segment %d (%s): %08x %08x - %08x (%d)\n"),
a->internalid, seg->name, a->idtype, a->start, a->start + a->size - 1, a->size);
} else {
console_out_f(_T("Segment %d: %08x %08x - %08x (%d)\n"),
a->internalid, a->idtype, a->start, a->start + a->size - 1, a->size);
}
}
}
}
static void debugreportalloc(struct debugmemallocs *a)
{
uae_u32 off = debugmem_bank.start;
if (a->type == DEBUGALLOC_HUNK) {
console_out_f(_T("Segment %d: %08x %08x - %08x (%d)"),
a->id, a->idtype, a->start + off, a->start + off + a->size - 1, a->size);
if (a->name) {
console_out_f(_T(" %s"), a->name);
}
console_out_f(_T("\n"));
} else if (a->type == DEBUGALLOC_ALLOCMEM) {
console_out_f(_T("AllocMem ID=%4d: %08x %08x - %08x (%d) AllocFlags: %08x PC: %08x\n"),
a->id, a->idtype, a->start + off, a->start + off + a->size - 1, a->size, a->data, a->pc);
} else if (a->type == DEBUGALLOC_ALLOCVEC) {
console_out_f(_T("AllocVec ID=%4d: %08x %08x - %08x (%d) AllocFlags: %08x PC: %08x\n"),
a->id, a->idtype, a->start + off, a->start + off + a->size - 1, a->size, a->data, a->pc);
} else if (a->type == DEBUGALLOC_SEG) {
static int lastsegment;
struct debugsegtracker *sg = NULL;
const TCHAR *name = _T("<unknown>");
for (int i = 0; i < MAX_DEBUGSEGS; i++) {
sg = dsegt[(i + lastsegment) % MAX_DEBUGSEGS];
if (sg->allocid == a->parentid) {
name = sg->name;
lastsegment = i;
break;
}
}
console_out_f(_T("Segment %d (%s): %08x %08x - %08x (%d)\n"),
a->internalid, name, a->idtype, a->start, a->start + a->size - 1, a->size);
}
}
static void debugreport(struct debugmemdata *dm, uaecptr addr, int rwi, int size, const TCHAR *msg)
{
int offset = addr & PAGE_SIZE_MASK;
uaecptr addr_start = addr & ~PAGE_SIZE_MASK;
uae_u8 state = dm->state[offset];
console_out_f(_T("Invalid access. Addr=%08x RW=%c Size=%d: %s\n"), addr, (rwi & DEBUGMEM_WRITE) ? 'W' : 'R', size, msg);
console_out_f(_T("Page: %08x - %08x. State=%c Modified=%c, Start=%02X, End=%02X\n"),
addr_start, addr_start + PAGE_SIZE - 1,
!(state & (DEBUGMEM_ALLOCATED | DEBUGMEM_INUSE)) ? 'I' : (state & DEBUGMEM_WRITE) ? 'W' : 'R',
(state & DEBUGMEM_WRITE) ? '*' : (state & DEBUGMEM_INITIALIZED) ? '+' : '-',
dm->unused_start, PAGE_SIZE - dm->unused_end - 1);
if (peekdma_data.mask && (peekdma_data.addr == addr || (size > 2 && peekdma_data.addr + 2 == addr))) {
console_out_f(_T("DMA DAT=%04x PTR=%04x\n"), peekdma_data.reg, peekdma_data.ptrreg);
}
debugmem_break(1);
}
#if 0
static uae_u32 debug_get_disp_ea(uaecptr pc, uae_u32 base)
{
uae_u16 dp = get_word_debug(pc);
pc += 2;
int reg = (dp >> 12) & 15;
uae_s32 regd = regs.regs[reg];
if ((dp & 0x800) == 0)
regd = (uae_s32)(uae_s16)regd;
regd <<= (dp >> 9) & 3;
if (dp & 0x100) {
uae_s32 outer = 0;
if (dp & 0x80) base = 0;
if (dp & 0x40) regd = 0;
if ((dp & 0x30) == 0x20) {
base += (uae_s32)(uae_s16)get_word_debug(pc);
pc += 2;
}
if ((dp & 0x30) == 0x30) {
base += get_long_debug(pc);
pc += 4;
}
if ((dp & 0x3) == 0x2) {
outer = (uae_s32)(uae_s16)get_word_debug(pc);
pc += 2;
}
if ((dp & 0x3) == 0x3) {
outer = get_long_debug(pc);
pc += 4;
}
if ((dp & 0x4) == 0)
base += regd;
if (dp & 0x3)
base = get_long_debug(base);
if (dp & 0x4)
base += regd;
return base + outer;
} else {
return base + (uae_s32)((uae_s8)dp) + regd;
}
}
static uaecptr calc_jsr(void)
{
uae_u16 opcode = regs.opcode;
uaecptr pc = regs.instruction_pc;
if ((opcode & 0xff00) == 0x6100) {
uae_u8 o = opcode & 0xff;
if (o == 0) {
return pc + (uae_s16)get_word_debug(pc + 2) + 2;
} else if (o == 0xff) {
return pc + (uae_s32)get_long_debug(pc + 2) + 2;
} else {
return pc + (uae_s8)o + 2;
}
} else if ((opcode & 0xffc0) == 0x4e80) {
int reg = opcode & 7;
int mode = (opcode >> 3) & 7;
switch (mode)
{
case 2:
return m68k_areg(regs, reg);
case 5:
return m68k_areg(regs, reg) + (uae_s16)get_word_debug(pc + 2);
case 6:
return debug_get_disp_ea(pc + 2, m68k_areg(regs, reg));
case 7:
if (reg == 0)
return (uae_u32)(uae_s16)get_word_debug(pc + 2);
if (reg == 1)
return get_long_debug(pc + 2);
if (reg == 2)
return pc + (uae_s16)get_word_debug(pc + 2) + 2;
if (reg == 3)
return debug_get_disp_ea(pc + 2, pc + 2);
break;
}
}
return 0xffffffff;
}
#endif
void branch_stack_pop_rte(uaecptr oldpc)
{
if (!stackframes)
return;
uaecptr newpc = m68k_getpc();
bool found = false;
for (int i = stackframecntsuper - 1; i >= 0; i--) {
struct debugstackframe *sf = &stackframessuper[i];
if (sf->next_pc == newpc) {
stackframecntsuper = i;
found = true;
break;
}
}
if (found) {
if (break_stack_pop) {
break_stack_pop = false;
debugmem_break(0);
}
} else {
// if no match, it probably was stack switch to other address,
// assume it matched..
if (stackframecntsuper > 0)
stackframecntsuper--;
}
if (found && break_stack_pop && break_stack_s) {
break_stack_push = false;
break_stack_pop = false;
debugmem_break(0);
}
}
void branch_stack_pop_rts(uaecptr oldpc)
{
if (!stackframes)
return;
if (!stackframemode) {
if (debug_waiting || (!regs.s && get_long_host(exec_thistask) != debug_task))
return;
}
int cnt = regs.s ? stackframecntsuper : stackframecnt;
uaecptr newpc = m68k_getpc();
bool found = false;
for (int i = cnt - 1; i >= 0; i--) {
struct debugstackframe *sf = regs.s ? &stackframessuper[i] : &stackframes[i];
if (sf->next_pc == newpc) {
cnt = i;
found = true;
break;
}
}
if (regs.s) {
stackframecntsuper = cnt;
} else {
stackframecnt = cnt;
stackframecntsuper = 0;
}
if (found && break_stack_pop && ((break_stack_s && regs.s) || (!break_stack_s && !regs.s))) {
break_stack_push = false;
break_stack_pop = false;
debugmem_break(0);
}
}
void branch_stack_push(uaecptr oldpc, uaecptr newpc)
{
if (!stackframes)
return;
if (!stackframemode) {
if (debug_waiting || (!regs.s && get_long_host(exec_thistask) != debug_task))
return;
}
int cnt = regs.s ? stackframecntsuper : stackframecnt;
struct debugstackframe *sf = regs.s ? &stackframessuper[cnt] : &stackframes[cnt];
sf->current_pc = regs.instruction_pc;
sf->next_pc = newpc;
sf->stack = m68k_areg(regs, 7);
sf->branch_pc = m68k_getpc();
MakeSR();
sf->sr = regs.sr;
memcpy(sf->regs, regs.regs, sizeof(uae_u32) * 16);
if (regs.s) {
stackframecntsuper++;
} else {
stackframecnt++;
stackframecntsuper = 0;
}
if (break_stack_push && ((break_stack_s && regs.s) || (!break_stack_s && !regs.s))) {
break_stack_push = false;
break_stack_pop = false;
debugmem_break(11);
}
}
bool debugmem_break_stack_pop(void)
{
if (!stackframes)
return false;
break_stack_s = regs.s != 0;
break_stack_pop = true;
return true;
}
bool debugmem_break_stack_push(void)
{
if (!stackframes)
return false;
break_stack_s = regs.s != 0;
break_stack_pop = true;
break_stack_push = true;
return true;
}
void debugmem_flushcache(uaecptr addr, int size)
{
if (!debugmem_initialized)
return;
if (size < 0) {
for (int i = 0; i < totalmemdata; i++) {
struct debugmemdata* dm = dmd[i];
if (dm->flags & DEBUGMEM_WRITE_NOCACHEFLUSH) {
for (int j = 0; j < PAGE_SIZE; j++) {
dm->state[j] &= ~DEBUGMEM_WRITE_NOCACHEFLUSH;
}
dm->flags &= ~DEBUGMEM_WRITE_NOCACHEFLUSH;
}
}
return;
}
if (addr + size < debugmem_bank.start || addr >= debugmem_bank.start + debugmem_bank.allocated_size)
return;
for (int i = 0; i < (PAGE_SIZE + size - 1) / PAGE_SIZE; i++) {
uaecptr a = (addr & ~PAGE_SIZE) + i * PAGE_SIZE;
if (a < debugmem_bank.start || a >= debugmem_bank.start + debugmem_bank.allocated_size)
continue;
struct debugmemdata* dm = dmd[(a - debugmem_bank.start) / PAGE_SIZE];
for (int j = 0; j < PAGE_SIZE; j++) {
uaecptr aa = a + j;
if (aa < addr || aa >= addr + size)
continue;
dm->state[j] &= ~DEBUGMEM_WRITE_NOCACHEFLUSH;
}
}
}
static bool debugmem_func(uaecptr addr, int rwi, int size, uae_u32 val)
{
bool ret = true;
uaecptr oaddr = addr;
struct debugmemdata *dmfirst = NULL;
if (debug_waiting && (rwi & DEBUGMEM_FETCH)) {
// first instruction?
if (addr == debugmem_bank.start + HUNK_GAP + 8) {
debugmem_break(2);
debug_waiting = false;
}
}
// in some situations addr may already have start substracted
if (addr >= debugmem_bank.start) {
addr -= debugmem_bank.start;
}
for (int i = 0; i < size; i++) {
int offset = addr & PAGE_SIZE_MASK;
int page = addr / PAGE_SIZE;
struct debugmemdata *dm = dmd[page];
uae_u8 state = dm->state[offset];
if (!i)
dmfirst = dm;
if (!(state & DEBUGMEM_INUSE)) {
debugreport(dm, oaddr, rwi, size, _T("Accessing invalid memory"));
return false;
}
if (!(rwi & DEBUGMEM_NOSTACKCHECK) || ((rwi & DEBUGMEM_NOSTACKCHECK) && !(dm->flags & DEBUGMEM_STACK))) {
if ((rwi & DEBUGMEM_FETCH) && !(state & DEBUGMEM_INITIALIZED) && !(state & DEBUGMEM_WRITE)) {
debugreport(dm, oaddr, rwi, size, _T("Instruction fetch from uninitialized memory"));
return false;
}
if ((rwi & DEBUGMEM_FETCH) && (state & DEBUGMEM_WRITE_NOCACHEFLUSH)) {
debugreport(dm, oaddr, rwi, size, _T("Instruction fetch from memory that was modified without flushing caches"));
return false;
}
if ((rwi & DEBUGMEM_FETCH) && (state & DEBUGMEM_WRITE) && (state & DEBUGMEM_FETCH)) {
debugreport(dm, oaddr, rwi, size, _T("Instruction fetch from memory that was modified after being executed at least once"));
return false;
}
}
if ((rwi & DEBUGMEM_READ) && !(state & DEBUGMEM_INITIALIZED) && !(state & DEBUGMEM_WRITE)) {
debugreport(dm, oaddr, rwi, size, _T("Reading uninitialized memory"));
return false;
}
if (dm->flags & DEBUGMEM_PARTIAL) {
if (offset < dm->unused_start) {
debugreport(dm, oaddr, rwi, size, _T("Reading from partially invalid page (low)"));
return false;
}
if (offset >= PAGE_SIZE - dm->unused_end) {
debugreport(dm, oaddr, rwi, size, _T("Reading from partially invalid page (high)"));
return false;
}
}
if (rwi & DEBUGMEM_WRITE) {
rwi |= DEBUGMEM_WRITE_NOCACHEFLUSH;
dm->flags |= DEBUGMEM_WRITE_NOCACHEFLUSH;
}
if ((rwi & DEBUGMEM_FETCH) && (state & DEBUGMEM_WRITE))
state &= ~(DEBUGMEM_WRITE | DEBUGMEM_WRITE_NOCACHEFLUSH);
if ((state | rwi) != state) {
//console_out_f(_T("addr %08x %d/%d (%02x -> %02x) PC=%08x\n"), addr, i, size, state, rwi, M68K_GETPC);
dm->state[offset] |= rwi;
}
addr++;
}
return ret;
}
static uae_u32 REGPARAM2 debugmem_lget(uaecptr addr)
{
uae_u32 v = 0xdeadf00d;
if (debugmem_func(addr, DEBUGMEM_READ, 4, 0))
v = debugmem_func_lget(addr);
return v;
}
static uae_u32 REGPARAM2 debugmem_wget(uaecptr addr)
{
uae_u32 v = 0xd00d;
if (debugmem_func(addr, DEBUGMEM_READ, 2, 0))
v = debugmem_func_wget(addr);
return v;
}
static uae_u32 REGPARAM2 debugmem_bget(uaecptr addr)
{
uae_u32 v = 0xdd;
if (debugmem_func(addr, DEBUGMEM_READ, 1, 0))
v = debugmem_func_bget(addr);
return v;
}
static uae_u32 REGPARAM2 debugmem_lgeti(uaecptr addr)
{
uae_u32 v = 0x4afc4afc;
if (debugmem_func(addr, DEBUGMEM_READ | DEBUGMEM_FETCH, 4, 0))
v = debugmem_func_lgeti(addr);
return v;
}
static uae_u32 REGPARAM2 debugmem_wgeti(uaecptr addr)
{
uae_u32 v = 0x4afc;
if (debugmem_func(addr, DEBUGMEM_READ | DEBUGMEM_FETCH, 2, 0))
v = debugmem_func_wgeti(addr);
return v;
}
static void REGPARAM2 debugmem_lput(uaecptr addr, uae_u32 v)
{
if (debugmem_func(addr, DEBUGMEM_WRITE, 4, v))
debugmem_func_lput(addr, v);
}
static void REGPARAM2 debugmem_wput(uaecptr addr, uae_u32 v)
{
if (debugmem_func(addr, DEBUGMEM_WRITE, 2, v))
debugmem_func_wput(addr, v);
}
static void REGPARAM2 debugmem_bput(uaecptr addr, uae_u32 v)
{
if (debugmem_func(addr, DEBUGMEM_WRITE, 1, v))
debugmem_func_bput(addr, v);
}
static uae_u8 *REGPARAM2 debugmem_xlate(uaecptr addr)
{
if (debug_waiting)
debugmem_func(addr, DEBUGMEM_FETCH | DEBUGMEM_READ | DEBUGMEM_NOSTACKCHECK, 2, 0);
addr -= debugmem_bank.start & debugmem_bank.mask;
addr &= debugmem_bank.mask;
return debugmem_bank.baseaddr + addr;
}
static int debugmem_free(uaecptr addr, uae_u32 size)
{
uaecptr oaddr = addr;
addr -= debugmem_bank.start;
int page = addr / PAGE_SIZE;
struct debugmemdata *dm = dmd[page];
bool ok = true;
if (!(dm->flags & DEBUGMEM_ALLOCATED)) {
console_out_f(_T("Invalid memory free (%08x %d) Start address points to unallocated memory\n"), oaddr, size);
ok = false;
} else if (!(dm->flags & DEBUGMEM_STARTBLOCK)) {
console_out_f(_T("Invalid memory free (%08x %d) Start address points to allocated memory but not start of allocated memory\n"), oaddr, size);
ok = false;
} else {
struct debugmemallocs *dma = allocs[dm->id];
if (dma->start == addr && dma->size == size) {
// it was valid!
for (int i = 0; i < dma->pages; i++) {
struct debugmemdata *dm2 = dmd[page + i];
memset(dm2, 0, sizeof(struct debugmemdata));
}
memset(debugmem_bank.baseaddr + dma->start_page * PAGE_SIZE, 0x95, dma->pages * PAGE_SIZE);
memset(dma, 0, sizeof(struct debugmemallocs));
return dm->id;
}
console_out_f(_T("Invalid memory free (%08x %d) ID=%d Start address points to start of allocated memory but size does not match allocation size (%d <> %d)\n"),
oaddr, size, dm->id, size, dma->size);
}
// report free memory error
int end = (size + PAGE_SIZE - 1) & ~PAGE_SIZE_MASK;
int allocid = -1;
for (int i = 0; i < end; i++) {
if (page + i >= totalmemdata) {
console_out_f(_T("Free end address is out of range\n"));
ok = false;
break;
}
struct debugmemdata *dm2 = dmd[page + i];
if ((dm2->flags & DEBUGMEM_ALLOCATED) && allocid != page + i) {
struct debugmemallocs *dma = allocs[dm2->id];
console_out_f(_T("Conflicts with existing allocation ID=%d (%08x - %08x %d)\n"),
dm->id, dma->start, dma->start + dma->size - 1, dma->size);
debugreportalloc(dma);
allocid = page + i;
}
}
debugmem_break(3);
return 0;
}
static uae_u32 REGPARAM2 debugmem_chipmem_lget(uaecptr addr)
{
uae_u32 *m;
if (addr < debugmem_chiplimit)
return debugmem_chiphit(addr, 0, -4);
addr &= chipmem_bank.mask;
m = (uae_u32 *)(chipmem_bank.baseaddr + addr);
return do_get_mem_long(m);
}
static uae_u32 REGPARAM2 debugmem_chipmem_wget(uaecptr addr)
{
uae_u16 *m, v;
if (addr < debugmem_chiplimit)
return debugmem_chiphit(addr, 0, -2);
addr &= chipmem_bank.mask;
m = (uae_u16 *)(chipmem_bank.baseaddr + addr);
v = do_get_mem_word(m);
return v;
}
static uae_u32 REGPARAM2 debugmem_chipmem_bget(uaecptr addr)
{
uae_u8 v;
if (addr < debugmem_chiplimit)
return debugmem_chiphit(addr, 0, -1);
addr &= chipmem_bank.mask;
v = chipmem_bank.baseaddr[addr];
return v;
}
void REGPARAM2 debugmem_chipmem_lput(uaecptr addr, uae_u32 l)
{
if (addr < debugmem_chiplimit) {
debugmem_chiphit(addr, l, 4);
} else {
uae_u32 *m;
addr &= chipmem_bank.mask;
m = (uae_u32 *)(chipmem_bank.baseaddr + addr);
do_put_mem_long(m, l);
}
}
void REGPARAM2 debugmem_chipmem_wput(uaecptr addr, uae_u32 w)
{
if (addr < debugmem_chiplimit) {
debugmem_chiphit(addr, w, 2);
} else {
uae_u16 *m;
addr &= chipmem_bank.mask;
m = (uae_u16 *)(chipmem_bank.baseaddr + addr);
do_put_mem_word(m, w);
}
}
void REGPARAM2 debugmem_chipmem_bput(uaecptr addr, uae_u32 b)
{
if (addr < debugmem_chiplimit) {
debugmem_chiphit(addr, b, 1);
} else {
addr &= chipmem_bank.mask;
chipmem_bank.baseaddr[addr] = b;
}
}
static int REGPARAM2 debugmem_chipmem_check(uaecptr addr, uae_u32 size)
{
addr &= chipmem_bank.mask;
return (addr + size) <= chipmem_bank.reserved_size;
}
static uae_u8 *REGPARAM2 debugmem_chipmem_xlate(uaecptr addr)
{
addr &= chipmem_bank.mask;
return chipmem_bank.baseaddr + addr;
}
static addrbank debugmem_chipmem_bank = {
debugmem_chipmem_lget, debugmem_chipmem_wget, debugmem_chipmem_bget,
debugmem_chipmem_lput, debugmem_chipmem_wput, debugmem_chipmem_bput,
debugmem_chipmem_xlate, debugmem_chipmem_check, NULL, _T("chip"), _T("Debug Chip memory"),
debugmem_chipmem_lget, debugmem_chipmem_wget,
ABFLAG_RAM | ABFLAG_THREADSAFE | ABFLAG_CHIPRAM | ABFLAG_CACHE_ENABLE_BOTH, 0, 0
};
static void setchipbank(bool activate)
{
if (activate) {
map_banks(&debugmem_chipmem_bank, 0, 1, 0);
} else {
map_banks(&chipmem_bank, 0, 1, 0);
}
}
static struct debugmemallocs *getallocblock(void)
{
int round = 0;
alloccnt++;
if (alloccnt >= MAX_DEBUGMEMALLOCS) {
alloccnt = 1;
}
while (allocs[alloccnt]->id != 0) {
alloccnt++;
if (alloccnt >= MAX_DEBUGMEMALLOCS) {
alloccnt = 1;
if (round) {
console_out_f(_T("debugmem out of alloc blocks!\n"));
return NULL;
}
round++;
}
}
struct debugmemallocs *dm = allocs[alloccnt];
dm->id = alloccnt;
return dm;
}
static struct debugmemallocs *debugmem_allocate(uae_u32 size, uae_u32 flags, uae_u32 parentid)
{
struct debugmemallocs *dm = getallocblock();
if (!dm)
return NULL;
int offset = debugmemptr / PAGE_SIZE;
bool gotit = true;
int totalsize = 0;
int extrasize = 0;
for (extrasize = HUNK_GAP; extrasize >= PAGE_SIZE; extrasize /= 2) {
totalsize = (extrasize + size + PAGE_SIZE - 1) & ~PAGE_SIZE_MASK;
for (int i = 0; i < totalmemdata; i++) {
struct debugmemdata *dm = dmd[offset];
if (offset + totalsize / PAGE_SIZE >= totalmemdata) {
offset = 0;
continue;
}
gotit = true;
// extra + size continous space available?
if (!(dm->flags & DEBUGMEM_ALLOCATED)) {
for (int j = 0; j < totalsize / PAGE_SIZE; j++) {
struct debugmemdata *dm2 = dmd[offset + j];
if (dm->flags & DEBUGMEM_ALLOCATED) {
gotit = false;
break;
}
}
}
if (gotit)
break;
offset++;
offset = offset % totalmemdata;
}
if (gotit)
break;
}
if (!gotit || !totalsize || !extrasize) {
console_out_f(_T("debugmem out of free space! Alloc size %d, flags %08x\n"), size, flags);
return 0;
}
dm->parentid = parentid;
dm->start_page = offset;
dm->pages = totalsize / PAGE_SIZE;
for (int j = 0; j < dm->pages; j++) {
struct debugmemdata *dm2 = dmd[offset + j];
dm2->flags |= DEBUGMEM_ALLOCATED;
dm2->id = dm->id;
}
memset(debugmem_bank.baseaddr + offset * PAGE_SIZE, 0xa3, totalsize);
int startoffset = extrasize / PAGE_SIZE;
dm->start = (offset + startoffset) * PAGE_SIZE;
dm->size = size;
dm->pc = M68K_GETPC;
for (int j = 0; j < (size + PAGE_SIZE - 1) / PAGE_SIZE; j++) {
struct debugmemdata *dm2 = dmd[offset + startoffset + j];
dm2->flags |= DEBUGMEM_INUSE | flags;
if (j == 0) {
dm2->flags |= DEBUGMEM_STARTBLOCK;
}
memset(dm2->state, ((flags & DEBUGMEM_INITIALIZED) ? DEBUGMEM_INITIALIZED : 0) | DEBUGMEM_INUSE, PAGE_SIZE);
uae_u8 filler = (flags & DEBUGMEM_INITIALIZED) ? 0x00 : 0x99;
memset(debugmem_bank.baseaddr + (offset + startoffset + j) * PAGE_SIZE, filler, PAGE_SIZE);
if (j == (size + PAGE_SIZE - 1) / PAGE_SIZE - 1) {
if (size & PAGE_SIZE_MASK) {
dm2->unused_end = PAGE_SIZE - (size & PAGE_SIZE_MASK);
dm2->flags |= DEBUGMEM_PARTIAL;
memset(dm2->state + (PAGE_SIZE - dm2->unused_end), 0, dm2->unused_end);
memset(debugmem_bank.baseaddr + (offset + startoffset + j) * PAGE_SIZE + (PAGE_SIZE - dm2->unused_end), 0x97, dm2->unused_end);
}
}
}
if (flags & DEBUGMEM_STACK) {
dm->name = my_strdup(_T("STACK"));
}
debugmemptr = offset * PAGE_SIZE + extrasize + ((size + PAGE_SIZE - 1) & ~PAGE_SIZE_MASK);
return dm;
}
static int debugmem_unreserve(uaecptr addr, uae_u32 size, bool noerror)
{
for (int i = 0; i < MAX_DEBUGMEMALLOCS; i++) {
struct debugmemallocs *alloc = allocs[i];
if (alloc->type != DEBUGALLOC_SEG)
continue;
if (alloc->start == addr && alloc->size == size) {
int id = alloc->parentid;
memset(alloc, 0, sizeof(struct debugmemallocs));
return id;
}
if (alloc->start == addr) {
console_out_f(_T("Invalid memory unreserve %08x - %08x %d. Start address points to start of reserved memory but size does not match allocation size (%d <> %d)\n"),
addr, addr + size - 1, size, size, alloc->size);
return 0;
}
}
if (!noerror)