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[MAXCPU] Added support for maxcpu (backport from box64) (#982)

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* [MAXCPU] Added support for maxcpu (backport from box64)

* [MAXCPU] Added documentation for maxcpu

* [ARM PRINTER] Fixed ADR decoder

* [WRAPPED] Fixed wrapped libc
This commit is contained in:
rajdakin 2024-07-16 11:15:33 +02:00 committed by GitHub
parent 54ed80f68a
commit e14d8abb61
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GPG Key ID: B5690EEEBB952194
10 changed files with 75 additions and 19 deletions
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5
docs/USAGE.md
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@ -206,6 +206,11 @@ Handling of x87 80bits long double
* 0 : Try to handle 80bits long double as precise as possible (Default)
* 1 : Handle them as double
#### BOX64_MAXCPU
Maximum CPU Core exposed
* 0 : Don't cap the number of cpu core exposed (Default)
* XXX : Cap the maximum CPU Core exposed to XXX (usefull with wine64 or GridAutosport for example)
#### BOX86_LIBCEF *
Detect libcef and apply malloc_hack settings
* 0 : Don't detect libcef

2
rebuild_printer.py
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@ -72,7 +72,7 @@ def main(root, ver, __debug_forceAllDebugging=False):
# Get all actual instructions
# Ignore white lines and lines beginning with either !, ; or #
insts = list(filter(lambda l: not re.match("^\s*$", l) and not re.match("^([!;#])", l), insts.split('\n')))
insts = list(filter(lambda l: not re.match("^\\s*$", l) and not re.match("^([!;#])", l), insts.split('\n')))
try:
# Do not open with `with` to be able to open it in writing mode

2
src/dynarec/arm_instructions.txt
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@ -471,8 +471,10 @@ ARM_ cond 0 0 0 1 1 1 1 0 Rn Rd (1) (1) (1) (1) 1 0 0 1 Rt STREXH<c> <Rd>, <Rt>,
ARM_ cond 0 0 0 1 1 1 1 1 Rn Rt (1) (1) (1) (1) 1 0 0 1 (1) (1) (1) (1) LDREXH<c> <Rt>, [<Rn>]
ARM_ cond 0 0 1 0 0 0 0 S Rn Rd imm12 AND{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 0 1 S Rn Rd imm12 EOR{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 1 0 0 1 1 1 1 Rd imm12 ADR<c> <Rd>, #-<const>
ARM_ cond 0 0 1 0 0 1 0 S Rn Rd imm12 SUB{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 1 1 S Rn Rd imm12 RSB{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 0 0 0 1 1 1 1 Rd imm12 ADR<c> <Rd>, #<const>
ARM_ cond 0 0 1 0 1 0 0 S Rn Rd imm12 ADD{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 0 1 S Rn Rd imm12 ADC{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 1 0 S Rn Rd imm12 SBC{S}<c> <Rd>, <Rn>, #<const>

24
src/dynarec/arm_printer.c
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@ -3944,18 +3944,6 @@ const char* arm_print(uint32_t opcode) {
uint8_t shift = ((opcode >> 4) & 0xFF);
sprintf(ret, "TEQ%s %s, %s%s", cond, regname[rn], regname[rm], print_shift(shift, 1));
} else if ((opcode&0b00001111111111110000000000000000) == 0b00000010100011110000000000000000) {
const char* cond = conds[(opcode >> 28) & 0xF];
int rd = (opcode >> 16) & 0xF;
uint32_t imm12 = opcode&0b111111111111;
sprintf(ret, "ADR %s, #0x%x", regname[rd], imm12);
} else if ((opcode&0b00001111111111110000000000000000) == 0b00000010010011110000000000000000) {
const char* cond = conds[(opcode >> 28) & 0xF];
int rd = (opcode >> 16) & 0xF;
uint32_t imm12 = opcode&0b111111111111;
sprintf(ret, "ADR %s, #-0x%x", regname[rd], imm12);
} else if ((opcode & 0x0FF000F0) == 0x01400090) {
const char* cond = conds[(opcode >> 28) & 0xF];
int rt = (opcode >> 12) & 0xF;
@ -4209,6 +4197,12 @@ const char* arm_print(uint32_t opcode) {
uint16_t imm12 = ((opcode >> 0) & 0xFFF);
sprintf(ret, "EOR%s%s %s, %s, #0x%x", (s ? "S" : ""), cond, regname[rd], regname[rn], print_modified_imm_ARM(imm12));
} else if ((opcode & 0x0FFF0000) == 0x024F0000) {
const char* cond = conds[(opcode >> 28) & 0xF];
int rd = (opcode >> 12) & 0xF;
uint16_t imm12 = ((opcode >> 0) & 0xFFF);
sprintf(ret, "ADR%s %s, #-0x%x", cond, regname[rd], print_modified_imm_ARM(imm12));
} else if ((opcode & 0x0FE00000) == 0x02400000) {
int s = (opcode >> 20) & 1;
const char* cond = conds[(opcode >> 28) & 0xF];
@ -4225,6 +4219,12 @@ const char* arm_print(uint32_t opcode) {
uint16_t imm12 = ((opcode >> 0) & 0xFFF);
sprintf(ret, "RSB%s%s %s, %s, #0x%x", (s ? "S" : ""), cond, regname[rd], regname[rn], print_modified_imm_ARM(imm12));
} else if ((opcode & 0x0FFF0000) == 0x028F0000) {
const char* cond = conds[(opcode >> 28) & 0xF];
int rd = (opcode >> 12) & 0xF;
uint16_t imm12 = ((opcode >> 0) & 0xFFF);
sprintf(ret, "ADR%s %s, #0x%x", cond, regname[rd], print_modified_imm_ARM(imm12));
} else if ((opcode & 0x0FE00000) == 0x02800000) {
int s = (opcode >> 20) & 1;
const char* cond = conds[(opcode >> 28) & 0xF];

2
src/dynarec/last_run.txt
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@ -353,8 +353,10 @@ ARM_ cond 0 0 0 1 1 1 1 0 Rn Rd (1) (1) (1) (1) 1 0 0 1 Rt STREXH<c> <Rd>, <Rt>,
ARM_ cond 0 0 0 1 1 1 1 1 Rn Rt (1) (1) (1) (1) 1 0 0 1 (1) (1) (1) (1) LDREXH<c> <Rt>, [<Rn>]
ARM_ cond 0 0 1 0 0 0 0 S Rn Rd imm12 AND{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 0 1 S Rn Rd imm12 EOR{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 1 0 0 1 1 1 1 Rd imm12 ADR<c> <Rd>, #-<const>
ARM_ cond 0 0 1 0 0 1 0 S Rn Rd imm12 SUB{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 0 1 1 S Rn Rd imm12 RSB{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 0 0 0 1 1 1 1 Rd imm12 ADR<c> <Rd>, #<const>
ARM_ cond 0 0 1 0 1 0 0 S Rn Rd imm12 ADD{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 0 1 S Rn Rd imm12 ADC{S}<c> <Rd>, <Rn>, #<const>
ARM_ cond 0 0 1 0 1 1 0 S Rn Rd imm12 SBC{S}<c> <Rd>, <Rn>, #<const>

2
src/include/debug.h
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@ -10,6 +10,8 @@ extern int box86_dynarec;
extern uintptr_t box86_pagesize;
extern uintptr_t box86_load_addr;
extern int box86_showbt;
extern int box86_maxcpu;
extern int box86_maxcpu_immutable;
#ifdef DYNAREC
extern int box86_dynarec_dump;
extern int box86_dynarec_trace;

18
src/main.c
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@ -51,6 +51,8 @@ int box86_dynarec_log = LOG_NONE;
uintptr_t box86_pagesize;
uintptr_t box86_load_addr = 0;
int box86_showbt = 0;
int box86_maxcpu = 0;
int box86_maxcpu_immutable = 0;
int box86_isglibc234 = 0;
int box86_nosandbox = 0;
int box86_malloc_hack = 0;
@ -759,6 +761,19 @@ void LoadLogEnv()
if(box86_showbt)
printf_log(LOG_INFO, "Show Backtrace for signals\n");
}
p = getenv("BOX64_MAXCPU");
if(p) {
int maxcpu = 0;
if(sscanf(p, "%d", &maxcpu)==1)
box86_maxcpu = maxcpu;
if(box86_maxcpu<0)
box86_maxcpu = 0;
if(box86_maxcpu) {
printf_log(LOG_INFO, "Will not expose more than %d cpu cores\n", box86_maxcpu);
} else {
printf_log(LOG_INFO, "Will not limit the number of cpu cores exposed\n");
}
}
box86_pagesize = sysconf(_SC_PAGESIZE);
if(!box86_pagesize)
box86_pagesize = 4096;
@ -1569,6 +1584,9 @@ int main(int argc, const char **argv, char **env)
my_context->argv[i] = box_strdup(argv[i+nextarg]);
printf_log(LOG_INFO, "argv[%i]=\"%s\"\n", i, my_context->argv[i]);
}
if(box86_wine) {
box86_maxcpu_immutable = 1; // cannot change once wine is loaded
}
if(box86_nosandbox)
{
add_argv("--no-sandbox");

4
src/tools/my_cpuid.c
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@ -93,8 +93,8 @@ int getNCpu()
{
if(!nCPU)
grabNCpu();
if(box86_wine && nCPU>32)
return 32;
if(box86_maxcpu && nCPU>box86_maxcpu)
return box86_maxcpu;
return nCPU;
}

9
src/tools/rcfile.c
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@ -55,6 +55,7 @@ ENTRYBOOL(BOX86_LIBCEF, box86_libcef) \
ENTRYBOOL(BOX86_SDL2_JGUID, box86_sdl2_jguid) \
ENTRYBOOL(BOX86_MUTEX_ALIGNED, box86_mutex_aligned) \
ENTRYINT(BOX86_MALLOC_HACK, box86_malloc_hack, 0, 2, 2) \
ENTRYINTPOS(BOX86_MAXCPU, new_maxcpu) \
#ifdef HAVE_TRACE
#define SUPER2() \
@ -399,6 +400,7 @@ void ApplyParams(const char* name, path_collection_t* preload)
return;
static const char* old_name = NULL;
int new_cycle_log = cycle_log;
int new_maxcpu = box86_maxcpu;
if(old_name && !strcmp(name, old_name))
return;
old_name = name;
@ -442,6 +444,13 @@ void ApplyParams(const char* name, path_collection_t* preload)
cycle_log = new_cycle_log;
initCycleLog(my_context);
}
if(!box86_maxcpu_immutable) {
if(new_maxcpu!=box86_maxcpu && box86_maxcpu && box86_maxcpu<new_maxcpu) {
printf_log(LOG_INFO, "Not applying BOX86_MAXCPU=%d because a lesser value is already active: %d\n", new_maxcpu, box86_maxcpu);
} else
box86_maxcpu = new_maxcpu;
} else if(new_maxcpu!=box86_maxcpu)
printf_log(LOG_INFO, "Not applying BOX86_MAXCPU=%d because it's too late\n", new_maxcpu);
if(param->is_ld_library_path_present) AppendList(&my_context->box86_ld_lib, param->ld_library_path, 1);
if(param->is_box86_path_present) AppendList(&my_context->box86_path, param->box86_path, 1);
if(param->is_trace_file_present) {

26
src/wrapped/wrappedlibc.c
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@ -1892,6 +1892,15 @@ EXPORT int32_t my_open(x86emu_t* emu, void* pathname, int32_t flags, uint32_t mo
lseek(tmp, 0, SEEK_SET);
return tmp;
}
if(box86_maxcpu && (!strcmp(pathname, "/sys/devices/system/cpu/present") || !strcmp(pathname, "/sys/devices/system/cpu/online")) && (getNCpu()>=box86_maxcpu)) {
// special case for cpu present (to limit to box86_maxcpu cores)
int tmp = shm_open(TMP_CPUPRESENT, O_RDWR | O_CREAT, S_IRWXU);
if(tmp<0) return open(pathname, flags, mode); // error fallback
shm_unlink(TMP_CPUPRESENT); // remove the shm file, but it will still exist because it's currently in use
CreateCPUPresentFile(tmp);
lseek(tmp, 0, SEEK_SET);
return tmp;
}
if(isCpuTopology((const char*)pathname)!=-1) {
int n = isCpuTopology((const char*)pathname);
char buf[512];
@ -2009,6 +2018,15 @@ EXPORT int32_t my_open64(x86emu_t* emu, void* pathname, int32_t flags, uint32_t
lseek(tmp, 0, SEEK_SET);
return tmp;
}
if(box86_maxcpu && (!strcmp(pathname, "/sys/devices/system/cpu/present") || !strcmp(pathname, "/sys/devices/system/cpu/online")) && (getNCpu()>=box86_maxcpu)) {
// special case for cpu present (to limit to box86_maxcpu cores)
int tmp = shm_open(TMP_CPUPRESENT, O_RDWR | O_CREAT, S_IRWXU);
if(tmp<0) return open64(pathname, flags, mode); // error fallback
shm_unlink(TMP_CPUPRESENT); // remove the shm file, but it will still exist because it's currently in use
CreateCPUPresentFile(tmp);
lseek(tmp, 0, SEEK_SET);
return fdopen(tmp, mode);
}
if(isCpuTopology((const char*)pathname)!=-1) {
int n = isCpuTopology((const char*)pathname);
char buf[512];
@ -2084,8 +2102,8 @@ EXPORT FILE* my_fopen(x86emu_t* emu, const char* path, const char* mode)
lseek(tmp, 0, SEEK_SET);
return fdopen(tmp, mode);;
}
if(box86_wine && (!strcmp(path, "/sys/devices/system/cpu/present") || !strcmp(path, "/sys/devices/system/cpu/online")) && (getNCpu()>=32)) {
// special case for cpu present (to limit to 64 cores)
if(box86_maxcpu && (!strcmp(path, "/sys/devices/system/cpu/present") || !strcmp(path, "/sys/devices/system/cpu/online")) && (getNCpu()>=box86_maxcpu)) {
// special case for cpu present (to limit to box86_maxcpu cores)
int tmp = shm_open(TMP_CPUPRESENT, O_RDWR | O_CREAT, S_IRWXU);
if(tmp<0) return fopen(path, mode); // error fallback
shm_unlink(TMP_CPUPRESENT); // remove the shm file, but it will still exist because it's currently in use
@ -2160,8 +2178,8 @@ EXPORT FILE* my_fopen64(x86emu_t* emu, const char* path, const char* mode)
lseek(tmp, 0, SEEK_SET);
return fdopen(tmp, mode);;
}
if(box86_wine && (!strcmp(path, "/sys/devices/system/cpu/present") || !strcmp(path, "/sys/devices/system/cpu/online")) && (getNCpu()>=32)) {
// special case for cpu present (to limit to 64 cores)
if(box86_maxcpu && (!strcmp(path, "/sys/devices/system/cpu/present") || !strcmp(path, "/sys/devices/system/cpu/online")) && (getNCpu()>=box86_maxcpu)) {
// special case for cpu present (to limit to box86_maxcpu cores)
int tmp = shm_open(TMP_CPUPRESENT, O_RDWR | O_CREAT, S_IRWXU);
if(tmp<0) return fopen64(path, mode); // error fallback
shm_unlink(TMP_CPUPRESENT); // remove the shm file, but it will still exist because it's currently in use