diff options
Diffstat (limited to 'code/qcommon')
| -rw-r--r-- | code/qcommon/vm_x86_64.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/code/qcommon/vm_x86_64.c b/code/qcommon/vm_x86_64.c index e92c377..f90b7ff 100644 --- a/code/qcommon/vm_x86_64.c +++ b/code/qcommon/vm_x86_64.c @@ -201,8 +201,8 @@ static unsigned char op_argsize[256] = }; #define emit(x...) \ - do { FS_Printf(fh_s, ##x); FS_Write("\n", 1, fh_s); } while(0) - + do { fprintf(fh_s, ##x); fputc('\n', fh_s); } while(0) + // integer compare and jump #define IJ(op) \ emit("subq $8, %%rsi"); \ @@ -306,26 +306,15 @@ out: return mem; } -static int doas(const char* in, const char* out, unsigned char** compiledcode) +static int doas(char* in, char* out, unsigned char** compiledcode) { - char rin[4096]; - char rout[4096]; char* buf; char* mem; - cvar_t* homedir; size_t size = -1, allocsize; int ps; pid_t pid; - homedir = Cvar_Get("fs_homepath", "", 0); - - buf = FS_BuildOSPath(homedir->string, NULL, in); - strcpy(rin, buf); - - buf = FS_BuildOSPath(homedir->string, NULL, out); - strcpy(rout, buf); - - Com_Printf("running assembler < %s > %s\n", rin, rout); + Com_Printf("running assembler < %s > %s\n", in, out); pid = fork(); if(pid == -1) { @@ -338,8 +327,8 @@ static int doas(const char* in, const char* out, unsigned char** compiledcode) char* const argv[] = { "as", "-o", - rout, - rin, + out, + in, NULL }; @@ -369,10 +358,10 @@ static int doas(const char* in, const char* out, unsigned char** compiledcode) Com_Printf("done\n"); - mem = mmapfile(rout, &size); + mem = mmapfile(out, &size); if(!mem) { - Com_Printf(S_COLOR_RED "can't mmap object file %s: %s\n", rout, strerror(errno)); + Com_Printf(S_COLOR_RED "can't mmap object file %s: %s\n", out, strerror(errno)); return -1; } @@ -442,16 +431,29 @@ void VM_Compile( vm_t *vm, vmHeader_t *header ) { #ifdef DEBUG_VM char fn_d[MAX_QPATH]; // disassembled #endif - fileHandle_t fh_s; + FILE* fh_s; + int fd_s, fd_o; byte* compiledcode; int compiledsize; Com_Printf("compiling %s\n", vm->name); - strcpy(fn_s,vm->name); - strcpy(fn_o,vm->name); - strcat(fn_s, ".s"); - strcat(fn_o, ".o"); + snprintf(fn_s, sizeof(fn_s), "/tmp/%.63s.s_XXXXXX", vm->name); + snprintf(fn_o, sizeof(fn_o), "/tmp/%.63s.o_XXXXXX", vm->name); + fd_s = mkstemp(fn_s); + fd_o = mkstemp(fn_o); + if(fd_s == -1 || fd_o == -1) + { + if(fd_s != -1) close(fd_s); + if(fd_o != -1) close(fd_o); + unlink(fn_s); + unlink(fn_o); + + Com_Printf(S_COLOR_RED "can't create temporary files for vm\n", fn_s); + vm->compiled = qfalse; + return; + } + #ifdef DEBUG_VM strcpy(fn_d,vm->name); strcat(fn_d, ".qdasm"); @@ -459,8 +461,8 @@ void VM_Compile( vm_t *vm, vmHeader_t *header ) { qdasmout = fopen(fn_d, "w"); #endif - fh_s = FS_FOpenFileWrite(fn_s); - if(fh_s == -1) + fh_s = fdopen(fd_s, "wb"); + if(!fh_s) { Com_Printf(S_COLOR_RED "can't write %s\n", fn_s); vm->compiled = qfalse; @@ -884,14 +886,14 @@ void VM_Compile( vm_t *vm, vmHeader_t *header ) { } } - FS_Flush(fh_s); - FS_FCloseFile(fh_s); + fflush(fh_s); + fclose(fh_s); compiledsize = doas(fn_s, fn_o, &compiledcode); if(compiledsize == -1) { vm->compiled = qfalse; - return; + goto out; } vm->codeBase = compiledcode; // remember to skip ELF header! @@ -920,13 +922,13 @@ void VM_Compile( vm_t *vm, vmHeader_t *header ) { Com_Printf( "VM file %s compiled to %i bytes of code (0x%lx - 0x%lx)\n", vm->name, vm->codeLength, vm->codeBase, vm->codeBase+vm->codeLength ); -#if 0 +out: + close(fd_o); if(!com_developer->integer) { unlink(fn_o); unlink(fn_s); } -#endif } /* |