The first commit

ido/ido5.3_recomp/Makefile

@@ -0,0 +1,37 @@
+IRIX_ROOT := ../ido5.3_compiler
+
+cc: OPT_CFLAGS := -O2
+cfe: OPT_CFLAGS := -O2
+uopt: OPT_CFLAGS := -O2
+ugen: OPT_CFLAGS := -O2
+as1: OPT_CFLAGS := -O2
+acpp: OPT_CFLAGS := -O2
+
+RECOMP := recomp
+
+ugen_c.c: RECOMP_FLAGS := --conservative
+
+all: cc cfe uopt ugen as1 acpp copt ujoin uld umerge usplit err.english.cc
+
+clean:
+	$(RM) cc* cfe* uopt* ugen* as1* acpp* copt* ujoin* uld* umerge* usplit* err.english.cc $(RECOMP) libc_impl.o
+
+$(RECOMP): recomp.cpp
+	$(CXX) $^ -o $@ -std=c++11 -O2 -Wno-switch `pkg-config --cflags --libs capstone`
+
+libc_impl.o: libc_impl.c libc_impl.h
+	$(CC) $< -c -fno-strict-aliasing -O2 -DIDO53
+
+err.english.cc: $(IRIX_ROOT)/usr/lib/err.english.cc
+	cp $^ $@
+
+cc_c.c: $(IRIX_ROOT)/usr/bin/cc $(RECOMP)
+	./$(RECOMP) $(RECOMP_FLAGS) $< > $@
+
+%_c.c: $(IRIX_ROOT)/usr/lib/% $(RECOMP)
+	./$(RECOMP) $(RECOMP_FLAGS) $< > $@
+
+%: %_c.c libc_impl.o
+	$(CC) libc_impl.o $< -o $@ $(OPT_CFLAGS) -fno-strict-aliasing -lm -no-pie
+
+.PHONY: all clean

ido/ido5.3_recomp/elf.h

@@ -0,0 +1,99 @@
+#ifndef ELF_H
+#define ELF_H
+
+#include <stdint.h>
+
+#define EI_DATA      5
+#define EI_NIDENT    16
+#define SHT_SYMTAB   2
+#define SHT_DYNAMIC  6
+#define SHT_REL      9
+#define SHT_DYNSYM   11
+#define SHT_MIPS_REGINFO    0x70000006
+#define STN_UNDEF    0
+#define STT_OBJECT   1
+#define STT_FUNC     2
+#define DT_PLTGOT    3
+#define DT_MIPS_LOCAL_GOTNO 0x7000000a
+#define DT_MIPS_SYMTABNO    0x70000011
+#define DT_MIPS_GOTSYM      0x70000013
+
+#define ELF32_R_SYM(info)  ((info) >> 8)
+#define ELF32_R_TYPE(info) ((info) & 0xff)
+
+#define ELF32_ST_TYPE(info) ((info) & 0xf)
+
+#define R_MIPS_26    4
+#define R_MIPS_HI16  5
+#define R_MIPS_LO16  6
+
+#define SHN_UNDEF 0
+#define SHN_COMMON 0xfff2
+#define SHN_MIPS_ACOMMON 0xff00
+#define SHN_MIPS_TEXT 0xff01
+#define SHN_MIPS_DATA 0xff02
+
+typedef uint32_t Elf32_Addr;
+typedef uint32_t Elf32_Off;
+
+typedef struct {
+   uint8_t    e_ident[EI_NIDENT];
+   uint16_t   e_type;
+   uint16_t   e_machine;
+   uint32_t   e_version;
+   Elf32_Addr e_entry;
+   Elf32_Off  e_phoff;
+   Elf32_Off  e_shoff;
+   uint32_t   e_flags;
+   uint16_t   e_ehsize;
+   uint16_t   e_phentsize;
+   uint16_t   e_phnum;
+   uint16_t   e_shentsize;
+   uint16_t   e_shnum;
+   uint16_t   e_shstrndx;
+} Elf32_Ehdr;
+
+typedef struct {
+   uint32_t   sh_name;
+   uint32_t   sh_type;
+   uint32_t   sh_flags;
+   Elf32_Addr sh_addr;
+   Elf32_Off  sh_offset;
+   uint32_t   sh_size;
+   uint32_t   sh_link;
+   uint32_t   sh_info;
+   uint32_t   sh_addralign;
+   uint32_t   sh_entsize;
+} Elf32_Shdr;
+
+typedef struct {
+   uint32_t   st_name;
+   Elf32_Addr st_value;
+   uint32_t   st_size;
+   uint8_t    st_info;
+   uint8_t    st_other;
+   uint16_t   st_shndx;
+} Elf32_Sym;
+
+typedef struct {
+   Elf32_Addr r_offset;
+   uint32_t   r_info;
+} Elf32_Rel;
+
+typedef struct
+{
+   uint32_t ri_gprmask;    /* General registers used.  */
+   uint32_t ri_cprmask[4]; /* Coprocessor registers used.  */
+   int32_t  ri_gp_value;   /* $gp register value.  */
+} Elf32_RegInfo;
+
+typedef struct
+{
+   int32_t d_tag;          /* Dynamic entry type */
+   union {
+      uint32_t d_val;      /* Integer value */
+      Elf32_Addr d_ptr;    /* Address value */
+   } d_un;
+} Elf32_Dyn;
+
+#endif

ido/ido5.3_recomp/header.h

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+
+#include "libc_impl.h"
+#include "helpers.h"
+
+#define RM_RN 0
+#define RM_RZ 1
+#define RM_RP 2
+#define RM_RM 3
+
+union FloatReg {
+    float f[2];
+    uint32_t w[2];
+    double d;
+};
+
+#define cvt_w_d(f) \
+    ((fcsr & RM_RZ) ? ((isnan(f) || f <= -2147483649.0 || f >= 2147483648.0) ? (fcsr |= 0x40, 2147483647) : (int)f) : (assert(0), 0))
+
+#define cvt_w_s(f) cvt_w_d((double)f)
+
+static union FloatReg f0 = {{0, 0}}, f2 = {{0, 0}}, f4 = {{0, 0}}, f6 = {{0, 0}}, f8 = {{0, 0}},
+f10 = {{0, 0}}, f12 = {{0, 0}}, f14 = {{0, 0}}, f16 = {{0, 0}}, f18 = {{0, 0}}, f20 = {{0, 0}},
+f22 = {{0, 0}}, f24 = {{0, 0}}, f26 = {{0, 0}}, f28 = {{0, 0}}, f30 = {{0, 0}};
+static uint32_t fcsr = 1;

ido/ido5.3_recomp/helpers.h

@@ -0,0 +1,13 @@
+#ifndef HELPERS_H
+#define HELPERS_H
+
+#include <stdint.h>
+
+#define MEM_U32(a) (*(uint32_t *)(mem + a))
+#define MEM_S32(a) (*(int32_t *)(mem + a))
+#define MEM_U16(a) (*(uint16_t *)(mem + ((a) ^ 2)))
+#define MEM_S16(a) (*(int16_t *)(mem + ((a) ^ 2)))
+#define MEM_U8(a) (*(uint8_t *)(mem + ((a) ^ 3)))
+#define MEM_S8(a) (*(int8_t *)(mem + ((a) ^ 3)))
+
+#endif

ido/ido5.3_recomp/libc_impl.h

@@ -0,0 +1,163 @@
+#include <stdint.h>
+
+void mmap_initial_data_range(uint8_t *mem, uint32_t start, uint32_t end);
+void setup_libc_data(uint8_t *mem);
+
+uint32_t wrapper_sbrk(uint8_t *mem, int increment);
+uint32_t wrapper_malloc(uint8_t *mem, uint32_t size);
+uint32_t wrapper_calloc(uint8_t *mem, uint32_t num, uint32_t size);
+uint32_t wrapper_realloc(uint8_t *mem, uint32_t data_addr, uint32_t size);
+int wrapper_fscanf(uint8_t *mem, uint32_t fp_addr, uint32_t format_addr, uint32_t sp);
+int wrapper_printf(uint8_t *mem, uint32_t format_addr, uint32_t sp);
+int wrapper_sprintf(uint8_t *mem, uint32_t str_addr, uint32_t format_addr, uint32_t sp);
+int wrapper_fprintf(uint8_t *mem, uint32_t fp_addr, uint32_t format_addr, uint32_t sp);
+int wrapper__doprnt(uint8_t *mem, uint32_t format_addr, uint32_t params_addr, uint32_t fp_addr);
+void wrapper_free(uint8_t *mem, uint32_t data_addr);
+uint32_t wrapper_strlen(uint8_t *mem, uint32_t str_addr);
+int wrapper_open(uint8_t *mem, uint32_t pathname_addr, int flags, int mode);
+int wrapper_creat(uint8_t *mem, uint32_t pathname_addr, int mode);
+int wrapper_access(uint8_t *mem, uint32_t pathname_addr, int mode);
+int wrapper_rename(uint8_t *mem, uint32_t oldpath_addr, uint32_t newpath_addr);
+int wrapper_utime(uint8_t *mem, uint32_t filename_addr, uint32_t times_addr);
+int wrapper_flock(uint8_t *mem, int fd, int operation);
+int wrapper_chmod(uint8_t *mem, uint32_t path_addr, uint32_t mode);
+int wrapper_umask(int mode);
+uint32_t wrapper_ecvt(uint8_t *mem, double number, int ndigits, uint32_t decpt_addr, uint32_t sign_addr);
+uint32_t wrapper_fcvt(uint8_t *mem, double number, int ndigits, uint32_t decpt_addr, uint32_t sign_addr);
+double wrapper_sqrt(double v);
+float wrapper_sqrtf(float v);
+int wrapper_atoi(uint8_t *mem, uint32_t nptr_addr);
+int wrapper_atol(uint8_t *mem, uint32_t nptr_addr);
+double wrapper_atof(uint8_t *mem, uint32_t nptr_addr);
+int wrapper_strtol(uint8_t *mem, uint32_t nptr_addr, uint32_t endptr_addr, int base);
+uint32_t wrapper_strtoul(uint8_t *mem, uint32_t nptr_addr, uint32_t endptr_addr, int base);
+double wrapper_strtod(uint8_t *mem, uint32_t nptr_addr, uint32_t endptr_addr);
+uint32_t wrapper_strchr(uint8_t *mem, uint32_t str_addr, int c);
+uint32_t wrapper_strrchr(uint8_t *mem, uint32_t str_addr, int c);
+uint32_t wrapper_strcspn(uint8_t *mem, uint32_t str_addr, uint32_t invalid_addr);
+uint32_t wrapper_strpbrk(uint8_t *mem, uint32_t str_addr, uint32_t accept_addr);
+int wrapper_fstat(uint8_t *mem, int fildes, uint32_t buf_addr);
+int wrapper_stat(uint8_t *mem, uint32_t pathname_addr, uint32_t buf_addr);
+int wrapper_ftruncate(uint8_t *mem, int fd, int length);
+void wrapper_bcopy(uint8_t *mem, uint32_t src_addr, uint32_t dst_addr, uint32_t len);
+uint32_t wrapper_memcpy(uint8_t *mem, uint32_t dst_addr, uint32_t src_addr, uint32_t len);
+uint32_t wrapper_memccpy(uint8_t *mem, uint32_t dst_addr, uint32_t src_addr, int c, uint32_t len);
+int wrapper_read(uint8_t *mem, int fd, uint32_t buf_addr, uint32_t nbytes);
+int wrapper_write(uint8_t *mem, int fd, uint32_t buf_addr, uint32_t nbytes);
+uint32_t wrapper_fopen(uint8_t *mem, uint32_t path_addr, uint32_t mode_addr);
+uint32_t wrapper_freopen(uint8_t *mem, uint32_t path_addr, uint32_t mode_addr, uint32_t fp_addr);
+int wrapper_fclose(uint8_t *mem, uint32_t fp_addr);
+int wrapper_fflush(uint8_t *mem, uint32_t fp_addr);
+int wrapper_ftell(uint8_t *mem, uint32_t fp_addr);
+void wrapper_rewind(uint8_t *mem, uint32_t fp_addr);
+int wrapper_fseek(uint8_t *mem, uint32_t fp_addr, int offset, int origin);
+int wrapper_lseek(uint8_t *mem, int fd, int offset, int whence);
+int wrapper_dup(uint8_t *mem, int fd);
+int wrapper_dup2(uint8_t *mem, int oldfd, int newfd);
+int wrapper_pipe(uint8_t *mem, uint32_t pipefd_addr);
+void wrapper_perror(uint8_t *mem, uint32_t str_addr);
+int wrapper_fdopen(uint8_t *mem, int fd, uint32_t mode_addr);
+uint32_t wrapper_memset(uint8_t *mem, uint32_t dest_addr, int byte, uint32_t n);
+int wrapper_bcmp(uint8_t *mem, uint32_t s1_addr, uint32_t s2_addr, uint32_t n);
+int wrapper_memcmp(uint8_t *mem, uint32_t s1_addr, uint32_t s2_addr, uint32_t n);
+int wrapper_getpid(void);
+int wrapper_getpgrp(uint8_t *mem);
+int wrapper_remove(uint8_t *mem, uint32_t path_addr);
+int wrapper_unlink(uint8_t *mem, uint32_t path_addr);
+int wrapper_close(uint8_t *mem, int fd);
+int wrapper_strcmp(uint8_t *mem, uint32_t s1_addr, uint32_t s2_addr);
+int wrapper_strncmp(uint8_t *mem, uint32_t s1_addr, uint32_t s2_addr, uint32_t n);
+uint32_t wrapper_strcpy(uint8_t *mem, uint32_t dest_addr, uint32_t src_addr);
+uint32_t wrapper_strncpy(uint8_t *mem, uint32_t dest_addr, uint32_t src_addr, uint32_t n);
+uint32_t wrapper_strcat(uint8_t *mem, uint32_t dest_addr, uint32_t src_addr);
+uint32_t wrapper_strncat(uint8_t *mem, uint32_t dest_addr, uint32_t src_addr, uint32_t n);
+uint32_t wrapper_strtok(uint8_t *mem, uint32_t str_addr, uint32_t delimiters_addr);
+uint32_t wrapper_strstr(uint8_t *mem, uint32_t str1_addr, uint32_t str2_addr);
+uint32_t wrapper_strdup(uint8_t *mem, uint32_t str_addr);
+int wrapper_toupper(int c);
+int wrapper_tolower(int c);
+int wrapper_gethostname(uint8_t *mem, uint32_t name_addr, uint32_t len);
+int wrapper_isatty(uint8_t *mem, int fd);
+int wrapper_times(uint8_t *mem, uint32_t buffer_addr);
+uint32_t wrapper_strftime(uint8_t *mem, uint32_t ptr_addr, uint32_t maxsize, uint32_t format_addr, uint32_t timeptr_addr);
+int wrapper_clock(void);
+uint32_t wrapper_ctime(uint8_t *mem, uint32_t timep_addr);
+uint32_t wrapper_localtime(uint8_t *mem, uint32_t timep_addr);
+int wrapper_setvbuf(uint8_t *mem, uint32_t fp_addr, uint32_t buf_addr, int mode, uint32_t size);
+int wrapper___semgetc(uint8_t *mem, uint32_t fp_addr);
+int wrapper___semputc(uint8_t *mem, int c, uint32_t fp_addr);
+int wrapper_fgetc(uint8_t *mem, uint32_t fp_addr);
+int wrapper_fgets(uint8_t *mem, uint32_t str_addr, int count, uint32_t fp_addr);
+int wrapper___filbuf(uint8_t *mem, uint32_t fp_addr);
+int wrapper___flsbuf(uint8_t *mem, int ch, uint32_t fp_addr);
+int wrapper_ungetc(uint8_t *mem, int ch, uint32_t fp_addr);
+uint32_t wrapper_gets(uint8_t *mem, uint32_t str_addr);
+uint32_t wrapper_fread(uint8_t *mem, uint32_t data_addr, uint32_t size, uint32_t count, uint32_t fp_addr);
+uint32_t wrapper_fwrite(uint8_t *mem, uint32_t data_addr, uint32_t size, uint32_t count, uint32_t fp_addr);
+int wrapper_fputs(uint8_t *mem, uint32_t str_addr, uint32_t fp_addr);
+int wrapper_puts(uint8_t *mem, uint32_t str_addr);
+uint32_t wrapper_getcwd(uint8_t *mem, uint32_t buf_addr, uint32_t size);
+int wrapper_time(uint8_t *mem, uint32_t tloc_addr);
+void wrapper_bzero(uint8_t *mem, uint32_t str_addr, uint32_t n);
+int wrapper_fp_class_d(double d);
+double wrapper_ldexp(double d, int i);
+int64_t wrapper___ll_mul(int64_t a0, int64_t a1);
+int64_t wrapper___ll_div(int64_t a0, int64_t a1);
+int64_t wrapper___ll_rem(uint64_t a0, int64_t a1);
+int64_t wrapper___ll_lshift(int64_t a0, uint64_t shift);
+int64_t wrapper___ll_rshift(int64_t a0, uint64_t shift);
+uint64_t wrapper___ull_div(uint64_t a0, uint64_t a1);
+uint64_t wrapper___ull_rem(uint64_t a0, uint64_t a1);
+uint64_t wrapper___ull_rshift(uint64_t a0, uint64_t shift);
+uint64_t wrapper___d_to_ull(double d);
+int64_t wrapper___d_to_ll(double d);
+uint64_t wrapper___f_to_ull(float f);
+int64_t wrapper___f_to_ll(float f);
+float wrapper___ull_to_f(uint64_t v);
+float wrapper___ll_to_f(int64_t v);
+double wrapper___ull_to_d(uint64_t v);
+double wrapper___ll_to_d(int64_t v);
+void wrapper_abort(uint8_t *mem);
+void wrapper_exit(uint8_t *mem, int status);
+void wrapper__exit(uint8_t *mem, int status);
+void wrapper__cleanup(uint8_t *mem);
+uint32_t wrapper__rld_new_interface(uint8_t *mem, uint32_t operation, uint32_t sp);
+void wrapper__exithandle(uint8_t *mem);
+int wrapper__prctl(uint8_t *mem, int operation, uint32_t sp);
+double wrapper__atod(uint8_t *mem, uint32_t buffer_addr, int ndigits, int dexp);
+int wrapper_pathconf(uint8_t *mem, uint32_t path_addr, int name);
+uint32_t wrapper_getenv(uint8_t *mem, uint32_t name_addr);
+uint32_t wrapper_gettxt(uint8_t *mem, uint32_t msgid_addr, uint32_t default_str_addr);
+uint32_t wrapper_setlocale(uint8_t *mem, int category, uint32_t locale_addr);
+uint32_t wrapper_mmap(uint8_t *mem, uint32_t addr, uint32_t length, int prot, int flags, int fd, int offset);
+int wrapper_munmap(uint8_t *mem, uint32_t addr, uint32_t length);
+int wrapper_mprotect(uint8_t *mem, uint32_t addr, uint32_t length, int prot);
+int wrapper_sysconf(uint8_t *mem, int name);
+int wrapper_getpagesize(uint8_t *mem);
+int wrapper_strerror(uint8_t *mem, int errnum);
+int wrapper_ioctl(uint8_t *mem, int fd, uint32_t request, uint32_t sp);
+int wrapper_fcntl(uint8_t *mem, int fd, int cmd, uint32_t sp);
+uint32_t wrapper_signal(uint8_t *mem, int signum, uint64_t (*trampoline)(uint8_t *mem, uint32_t sp, uint32_t a0, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t fp_dest), uint32_t handler_addr, uint32_t sp);
+uint32_t wrapper_sigset(uint8_t *mem, int signum, uint64_t (*trampoline)(uint8_t *mem, uint32_t sp, uint32_t a0, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t fp_dest), uint32_t disp_addr, uint32_t sp);
+int wrapper_get_fpc_csr(uint8_t *mem);
+int wrapper_set_fpc_csr(uint8_t *mem, int csr);
+int wrapper_setjmp(uint8_t *mem, uint32_t addr);
+void wrapper_longjmp(uint8_t *mem, uint32_t addr, int status);
+uint32_t wrapper_tempnam(uint8_t *mem, uint32_t dir_addr, uint32_t pfx_addr);
+uint32_t wrapper_tmpnam(uint8_t *mem, uint32_t str_addr);
+uint32_t wrapper_mktemp(uint8_t *mem, uint32_t template_addr);
+int wrapper_mkstemp(uint8_t *mem, uint32_t name_addr);
+uint32_t wrapper_tmpfile(uint8_t *mem);
+int wrapper_wait(uint8_t *mem, uint32_t wstatus_addr);
+int wrapper_kill(uint8_t *mem, int pid, int sig);
+int wrapper_execlp(uint8_t *mem, uint32_t file_addr, uint32_t sp);
+int wrapper_execv(uint8_t *mem, uint32_t pathname_addr, uint32_t argv_addr);
+int wrapper_execvp(uint8_t *mem, uint32_t file_addr, uint32_t argv_addr);
+int wrapper_fork(uint8_t *mem);
+int wrapper_system(uint8_t *mem, uint32_t command_addr);
+uint32_t wrapper_tsearch(uint8_t *mem, uint32_t key_addr, uint32_t rootp_addr, uint32_t compar_addr);
+uint32_t wrapper_tfind(uint8_t *mem, uint32_t key_addr, uint32_t rootp_addr, uint32_t compar_addr);
+uint32_t wrapper_qsort(uint8_t *mem, uint32_t base_addr, uint32_t num, uint32_t size, uint64_t (*trampoline)(uint8_t *mem, uint32_t sp, uint32_t a0, uint32_t a1, uint32_t a2, uint32_t a3, uint32_t fp_dest), uint32_t compare_addr, uint32_t sp);
+uint32_t wrapper_regcmp(uint8_t *mem, uint32_t string1_addr, uint32_t sp);
+uint32_t wrapper_regex(uint8_t *mem, uint32_t re_addr, uint32_t subject_addr, uint32_t sp);
+void wrapper___assert(uint8_t *mem, uint32_t assertion_addr, uint32_t file_addr, int line);