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[Qemu-devel] [5914] Remove a few dyngen and dyngen related code
|
From: |
Aurelien Jarno |
|
Subject: |
[Qemu-devel] [5914] Remove a few dyngen and dyngen related code |
|
Date: |
Sun, 07 Dec 2008 15:21:24 +0000 |
Revision: 5914
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5914
Author: aurel32
Date: 2008-12-07 15:21:23 +0000 (Sun, 07 Dec 2008)
Log Message:
-----------
Remove a few dyngen and dyngen related code
Signed-off-by: Aurelien Jarno <address@hidden>
Modified Paths:
--------------
trunk/Makefile
trunk/Makefile.target
trunk/tcg/README
Removed Paths:
-------------
trunk/dyngen.c
Modified: trunk/Makefile
===================================================================
--- trunk/Makefile 2008-12-07 14:18:02 UTC (rev 5913)
+++ trunk/Makefile 2008-12-07 15:21:23 UTC (rev 5914)
@@ -36,7 +36,7 @@
SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
-subdir-%: dyngen$(EXESUF)
+subdir-%:
$(MAKE) -C $(subst subdir-,,$@) all
$(filter %-softmmu,$(SUBDIR_RULES)): libqemu_common.a
@@ -195,15 +195,10 @@
qemu-nbd$(EXESUF): qemu-nbd.o qemu-tool.o osdep.o $(BLOCK_OBJS)
$(CC) $(LDFLAGS) -o $@ $^ -lz $(LIBS)
-# dyngen host tool
-dyngen$(EXESUF): dyngen.c
- $(HOST_CC) $(CFLAGS) $(CPPFLAGS) -o $@ $^
-
clean:
# avoid old build problems by removing potentially incorrect old files
rm -f config.mak config.h op-i386.h opc-i386.h gen-op-i386.h op-arm.h
opc-arm.h gen-op-arm.h
- rm -f *.o *.d *.a $(TOOLS) dyngen$(EXESUF) TAGS cscope.* *.pod *~ */*~
- rm -rf dyngen.dSYM
+ rm -f *.o *.d *.a $(TOOLS) TAGS cscope.* *.pod *~ */*~
rm -f slirp/*.o slirp/*.d audio/*.o audio/*.d
$(MAKE) -C tests clean
for d in $(TARGET_DIRS); do \
Modified: trunk/Makefile.target
===================================================================
--- trunk/Makefile.target 2008-12-07 14:18:02 UTC (rev 5913)
+++ trunk/Makefile.target 2008-12-07 15:21:23 UTC (rev 5914)
@@ -27,7 +27,6 @@
CPPFLAGS=-I. -I.. -I$(TARGET_PATH) -I$(SRC_PATH) -MMD -MT $@ -MP -DNEED_CPU_H
#CFLAGS+=-Werror
LIBS=
-DYNGEN=../dyngen$(EXESUF)
# user emulator name
ifndef TARGET_ARCH2
TARGET_ARCH2=$(TARGET_ARCH)
@@ -186,10 +185,6 @@
# cpu emulator library
LIBOBJS=exec.o kqemu.o translate-all.o cpu-exec.o\
translate.o host-utils.o
-ifdef CONFIG_DYNGEN_OP
-exec.o: dyngen-opc.h
-LIBOBJS+=op.o
-endif
# TCG code generator
LIBOBJS+= tcg/tcg.o tcg/tcg-dyngen.o tcg/tcg-runtime.o
CPPFLAGS+=-I$(SRC_PATH)/tcg -I$(SRC_PATH)/tcg/$(ARCH)
@@ -261,36 +256,16 @@
# libqemu
-ifdef CONFIG_DYNGEN_OP
-OPC_H = gen-op.h dyngen-opc.h op.h
-endif
-
libqemu.a: $(LIBOBJS)
rm -f $@
$(AR) rcs $@ $(LIBOBJS)
-translate.o: translate.c cpu.h $(OPC_H)
+translate.o: translate.c cpu.h
-translate-all.o: translate-all.c cpu.h $(OPC_H)
+translate-all.o: translate-all.c cpu.h
-tcg/tcg.o: cpu.h $(OPC_H)
+tcg/tcg.o: cpu.h
-tcg/tcg-dyngen.o: $(OPC_H)
-
-tcg/tcg-runtime.o: $(OPC_H)
-
-op.h: op.o $(DYNGEN)
- $(DYNGEN) -o $@ $<
-
-dyngen-opc.h: op.o $(DYNGEN)
- $(DYNGEN) -c -o $@ $<
-
-gen-op.h: op.o $(DYNGEN)
- $(DYNGEN) -g -o $@ $<
-
-op.o: op.c
- $(CC) $(OP_CFLAGS) $(CPPFLAGS) $(I386_CFLAGS) -c -o $@ $<
-
machine.o: machine.c
$(CC) $(OP_CFLAGS) $(CPPFLAGS) -c -o $@ $<
@@ -299,7 +274,7 @@
op_helper.o: op_helper.c
$(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) $(I386_CFLAGS) -c -o $@ $<
-cpu-exec.o: cpu-exec.c $(OPC_H)
+cpu-exec.o: cpu-exec.c
$(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
#########################################################
@@ -807,7 +782,7 @@
$(CC) $(CPPFLAGS) -c -o $@ $<
clean:
- rm -f *.o *.a *~ $(PROGS) gen-op.h dyngen-opc.h op.h nwfpe/*.o fpu/*.o
+ rm -f *.o *.a *~ $(PROGS) nwfpe/*.o fpu/*.o
rm -f *.d */*.d tcg/*.o
install: all
Deleted: trunk/dyngen.c
===================================================================
--- trunk/dyngen.c 2008-12-07 14:18:02 UTC (rev 5913)
+++ trunk/dyngen.c 2008-12-07 15:21:23 UTC (rev 5914)
@@ -1,2794 +0,0 @@
-/*
- * Generic Dynamic compiler generator
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * The COFF object format support was extracted from Kazu's QEMU port
- * to Win32.
- *
- * Mach-O Support by Matt Reda and Pierre d'Herbemont
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-#include <inttypes.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include "config-host.h"
-
-/* NOTE: we test CONFIG_WIN32 instead of _WIN32 to enabled cross
- compilation */
-#if defined(CONFIG_WIN32)
-#define CONFIG_FORMAT_COFF
-#elif defined(CONFIG_DARWIN)
-#define CONFIG_FORMAT_MACH
-#else
-#define CONFIG_FORMAT_ELF
-#endif
-
-#ifdef CONFIG_FORMAT_ELF
-
-/* elf format definitions. We use these macros to test the CPU to
- allow cross compilation (this tool must be ran on the build
- platform) */
-#if defined(HOST_I386)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_386
-#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
-#undef ELF_USES_RELOCA
-
-#elif defined(HOST_X86_64)
-
-#define ELF_CLASS ELFCLASS64
-#define ELF_ARCH EM_X86_64
-#define elf_check_arch(x) ((x) == EM_X86_64)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_PPC)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_PPC
-#define elf_check_arch(x) ((x) == EM_PPC)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_PPC64)
-
-#define ELF_CLASS ELFCLASS64
-#define ELF_ARCH EM_PPC64
-#define elf_check_arch(x) ((x) == EM_PPC64)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_S390)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_S390
-#define elf_check_arch(x) ((x) == EM_S390)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_ALPHA)
-
-#define ELF_CLASS ELFCLASS64
-#define ELF_ARCH EM_ALPHA
-#define elf_check_arch(x) ((x) == EM_ALPHA)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_IA64)
-
-#define ELF_CLASS ELFCLASS64
-#define ELF_ARCH EM_IA_64
-#define elf_check_arch(x) ((x) == EM_IA_64)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_SPARC)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_SPARC
-#define elf_check_arch(x) ((x) == EM_SPARC || (x) == EM_SPARC32PLUS)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_SPARC64)
-
-#define ELF_CLASS ELFCLASS64
-#define ELF_ARCH EM_SPARCV9
-#define elf_check_arch(x) ((x) == EM_SPARCV9)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_ARM)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_ARM
-#define elf_check_arch(x) ((x) == EM_ARM)
-#define ELF_USES_RELOC
-
-#elif defined(HOST_M68K)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_68K
-#define elf_check_arch(x) ((x) == EM_68K)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_HPPA)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_PARISC
-#define elf_check_arch(x) ((x) == EM_PARISC)
-#define ELF_USES_RELOCA
-
-#elif defined(HOST_MIPS)
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_MIPS
-#define elf_check_arch(x) ((x) == EM_MIPS)
-#define ELF_USES_RELOC
-
-#elif defined(HOST_MIPS64)
-
-/* Assume n32 ABI here, which is ELF32. */
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_MIPS
-#define elf_check_arch(x) ((x) == EM_MIPS)
-#define ELF_USES_RELOCA
-
-#else
-#error unsupported CPU - please update the code
-#endif
-
-#include "elf.h"
-
-#if ELF_CLASS == ELFCLASS32
-typedef int32_t host_long;
-typedef uint32_t host_ulong;
-#define swabls(x) swab32s(x)
-#define swablss(x) swab32ss(x)
-#else
-typedef int64_t host_long;
-typedef uint64_t host_ulong;
-#define swabls(x) swab64s(x)
-#define swablss(x) swab64ss(x)
-#endif
-
-#ifdef ELF_USES_RELOCA
-#define SHT_RELOC SHT_RELA
-#else
-#define SHT_RELOC SHT_REL
-#endif
-
-#define EXE_RELOC ELF_RELOC
-#define EXE_SYM ElfW(Sym)
-
-#endif /* CONFIG_FORMAT_ELF */
-
-#ifdef CONFIG_FORMAT_COFF
-
-typedef int32_t host_long;
-typedef uint32_t host_ulong;
-
-#include "a.out.h"
-
-#define FILENAMELEN 256
-
-typedef struct coff_sym {
- struct external_syment *st_syment;
- char st_name[FILENAMELEN];
- uint32_t st_value;
- int st_size;
- uint8_t st_type;
- uint8_t st_shndx;
-} coff_Sym;
-
-typedef struct coff_rel {
- struct external_reloc *r_reloc;
- int r_offset;
- uint8_t r_type;
-} coff_Rel;
-
-#define EXE_RELOC struct coff_rel
-#define EXE_SYM struct coff_sym
-
-#endif /* CONFIG_FORMAT_COFF */
-
-#ifdef CONFIG_FORMAT_MACH
-
-#include <mach-o/loader.h>
-#include <mach-o/nlist.h>
-#include <mach-o/reloc.h>
-#include <mach-o/ppc/reloc.h>
-
-# define check_mach_header(x) (x.magic == MH_MAGIC)
-typedef int32_t host_long;
-typedef uint32_t host_ulong;
-
-struct nlist_extended
-{
- union {
- char *n_name;
- long n_strx;
- } n_un;
- unsigned char n_type;
- unsigned char n_sect;
- short st_desc;
- unsigned long st_value;
- unsigned long st_size;
-};
-
-#define EXE_RELOC struct relocation_info
-#define EXE_SYM struct nlist_extended
-
-#endif /* CONFIG_FORMAT_MACH */
-
-#include "bswap.h"
-
-enum {
- OUT_GEN_OP,
- OUT_CODE,
- OUT_INDEX_OP,
-};
-
-/* all dynamically generated functions begin with this code */
-#define OP_PREFIX "op_"
-
-int do_swap;
-
-static void __attribute__((noreturn)) __attribute__((format (printf, 1, 2)))
error(const char *fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
- fprintf(stderr, "dyngen: ");
- vfprintf(stderr, fmt, ap);
- fprintf(stderr, "\n");
- va_end(ap);
- exit(1);
-}
-
-static void *load_data(int fd, long offset, unsigned int size)
-{
- char *data;
-
- data = malloc(size);
- if (!data)
- return NULL;
- lseek(fd, offset, SEEK_SET);
- if (read(fd, data, size) != size) {
- free(data);
- return NULL;
- }
- return data;
-}
-
-static int strstart(const char *str, const char *val, const char **ptr)
-{
- const char *p, *q;
- p = str;
- q = val;
- while (*q != '\0') {
- if (*p != *q)
- return 0;
- p++;
- q++;
- }
- if (ptr)
- *ptr = p;
- return 1;
-}
-
-static void pstrcpy(char *buf, int buf_size, const char *str)
-{
- int c;
- char *q = buf;
-
- if (buf_size <= 0)
- return;
-
- for(;;) {
- c = *str++;
- if (c == 0 || q >= buf + buf_size - 1)
- break;
- *q++ = c;
- }
- *q = '\0';
-}
-
-static void swab16s(uint16_t *p)
-{
- *p = bswap16(*p);
-}
-
-static void swab32s(uint32_t *p)
-{
- *p = bswap32(*p);
-}
-
-static void swab32ss(int32_t *p)
-{
- *p = bswap32(*p);
-}
-
-static void swab64s(uint64_t *p)
-{
- *p = bswap64(*p);
-}
-
-static void swab64ss(int64_t *p)
-{
- *p = bswap64(*p);
-}
-
-static uint16_t get16(uint16_t *p)
-{
- uint16_t val;
- val = *p;
- if (do_swap)
- val = bswap16(val);
- return val;
-}
-
-static uint32_t get32(uint32_t *p)
-{
- uint32_t val;
- val = *p;
- if (do_swap)
- val = bswap32(val);
- return val;
-}
-
-static void put16(uint16_t *p, uint16_t val)
-{
- if (do_swap)
- val = bswap16(val);
- *p = val;
-}
-
-static void put32(uint32_t *p, uint32_t val)
-{
- if (do_swap)
- val = bswap32(val);
- *p = val;
-}
-
-/* executable information */
-EXE_SYM *symtab;
-int nb_syms;
-int text_shndx;
-uint8_t *text;
-EXE_RELOC *relocs;
-int nb_relocs;
-
-#ifdef CONFIG_FORMAT_ELF
-
-/* ELF file info */
-struct elf_shdr *shdr;
-uint8_t **sdata;
-struct elfhdr ehdr;
-char *strtab;
-
-static int elf_must_swap(struct elfhdr *h)
-{
- union {
- uint32_t i;
- uint8_t b[4];
- } swaptest;
-
- swaptest.i = 1;
- return (h->e_ident[EI_DATA] == ELFDATA2MSB) !=
- (swaptest.b[0] == 0);
-}
-
-static void elf_swap_ehdr(struct elfhdr *h)
-{
- swab16s(&h->e_type); /* Object file type */
- swab16s(&h-> e_machine); /* Architecture */
- swab32s(&h-> e_version); /* Object file version */
- swabls(&h-> e_entry); /* Entry point virtual address
*/
- swabls(&h-> e_phoff); /* Program header table file
offset */
- swabls(&h-> e_shoff); /* Section header table file
offset */
- swab32s(&h-> e_flags); /* Processor-specific flags */
- swab16s(&h-> e_ehsize); /* ELF header size in bytes */
- swab16s(&h-> e_phentsize); /* Program header table entry
size */
- swab16s(&h-> e_phnum); /* Program header table entry
count */
- swab16s(&h-> e_shentsize); /* Section header table entry
size */
- swab16s(&h-> e_shnum); /* Section header table entry
count */
- swab16s(&h-> e_shstrndx); /* Section header string table
index */
-}
-
-static void elf_swap_shdr(struct elf_shdr *h)
-{
- swab32s(&h-> sh_name); /* Section name (string tbl index) */
- swab32s(&h-> sh_type); /* Section type */
- swabls(&h-> sh_flags); /* Section flags */
- swabls(&h-> sh_addr); /* Section virtual addr at execution */
- swabls(&h-> sh_offset); /* Section file offset */
- swabls(&h-> sh_size); /* Section size in bytes */
- swab32s(&h-> sh_link); /* Link to another section */
- swab32s(&h-> sh_info); /* Additional section information */
- swabls(&h-> sh_addralign); /* Section alignment */
- swabls(&h-> sh_entsize); /* Entry size if section holds table */
-}
-
-static void elf_swap_phdr(struct elf_phdr *h)
-{
- swab32s(&h->p_type); /* Segment type */
- swabls(&h->p_offset); /* Segment file offset */
- swabls(&h->p_vaddr); /* Segment virtual address */
- swabls(&h->p_paddr); /* Segment physical address */
- swabls(&h->p_filesz); /* Segment size in file */
- swabls(&h->p_memsz); /* Segment size in memory */
- swab32s(&h->p_flags); /* Segment flags */
- swabls(&h->p_align); /* Segment alignment */
-}
-
-static void elf_swap_rel(ELF_RELOC *rel)
-{
- swabls(&rel->r_offset);
- swabls(&rel->r_info);
-#ifdef ELF_USES_RELOCA
- swablss(&rel->r_addend);
-#endif
-}
-
-static struct elf_shdr *find_elf_section(struct elf_shdr *shdr, int shnum,
- const char *shstr, const char *name)
-{
- int i;
- const char *shname;
- struct elf_shdr *sec;
-
- for(i = 0; i < shnum; i++) {
- sec = &shdr[i];
- if (!sec->sh_name)
- continue;
- shname = shstr + sec->sh_name;
- if (!strcmp(shname, name))
- return sec;
- }
- return NULL;
-}
-
-static int find_reloc(int sh_index)
-{
- struct elf_shdr *sec;
- int i;
-
- for(i = 0; i < ehdr.e_shnum; i++) {
- sec = &shdr[i];
- if (sec->sh_type == SHT_RELOC && sec->sh_info == sh_index)
- return i;
- }
- return 0;
-}
-
-static host_ulong get_rel_offset(EXE_RELOC *rel)
-{
- return rel->r_offset;
-}
-
-static char *get_rel_sym_name(EXE_RELOC *rel)
-{
- return strtab + symtab[ELFW(R_SYM)(rel->r_info)].st_name;
-}
-
-static char *get_sym_name(EXE_SYM *sym)
-{
- return strtab + sym->st_name;
-}
-
-/* load an elf object file */
-static int load_object(const char *filename)
-{
- int fd;
- struct elf_shdr *sec, *symtab_sec, *strtab_sec, *text_sec;
- int i, j;
- ElfW(Sym) *sym;
- char *shstr;
- ELF_RELOC *rel;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- error("can't open file '%s'", filename);
-
- /* Read ELF header. */
- if (read(fd, &ehdr, sizeof (ehdr)) != sizeof (ehdr))
- error("unable to read file header");
-
- /* Check ELF identification. */
- if (ehdr.e_ident[EI_MAG0] != ELFMAG0
- || ehdr.e_ident[EI_MAG1] != ELFMAG1
- || ehdr.e_ident[EI_MAG2] != ELFMAG2
- || ehdr.e_ident[EI_MAG3] != ELFMAG3
- || ehdr.e_ident[EI_VERSION] != EV_CURRENT) {
- error("bad ELF header");
- }
-
- do_swap = elf_must_swap(&ehdr);
- if (do_swap)
- elf_swap_ehdr(&ehdr);
- if (ehdr.e_ident[EI_CLASS] != ELF_CLASS)
- error("Unsupported ELF class");
- if (ehdr.e_type != ET_REL)
- error("ELF object file expected");
- if (ehdr.e_version != EV_CURRENT)
- error("Invalid ELF version");
- if (!elf_check_arch(ehdr.e_machine))
- error("Unsupported CPU (e_machine=%d)", ehdr.e_machine);
-
- /* read section headers */
- shdr = load_data(fd, ehdr.e_shoff, ehdr.e_shnum * sizeof(struct elf_shdr));
- if (do_swap) {
- for(i = 0; i < ehdr.e_shnum; i++) {
- elf_swap_shdr(&shdr[i]);
- }
- }
-
- /* read all section data */
- sdata = malloc(sizeof(void *) * ehdr.e_shnum);
- memset(sdata, 0, sizeof(void *) * ehdr.e_shnum);
-
- for(i = 0;i < ehdr.e_shnum; i++) {
- sec = &shdr[i];
- if (sec->sh_type != SHT_NOBITS)
- sdata[i] = load_data(fd, sec->sh_offset, sec->sh_size);
- }
-
- sec = &shdr[ehdr.e_shstrndx];
- shstr = (char *)sdata[ehdr.e_shstrndx];
-
- /* swap relocations */
- for(i = 0; i < ehdr.e_shnum; i++) {
- sec = &shdr[i];
- if (sec->sh_type == SHT_RELOC) {
- nb_relocs = sec->sh_size / sec->sh_entsize;
- if (do_swap) {
- for(j = 0, rel = (ELF_RELOC *)sdata[i]; j < nb_relocs; j++,
rel++)
- elf_swap_rel(rel);
- }
- }
- }
- /* text section */
-
- text_sec = find_elf_section(shdr, ehdr.e_shnum, shstr, ".text");
- if (!text_sec)
- error("could not find .text section");
- text_shndx = text_sec - shdr;
- text = sdata[text_shndx];
-
- /* find text relocations, if any */
- relocs = NULL;
- nb_relocs = 0;
- i = find_reloc(text_shndx);
- if (i != 0) {
- relocs = (ELF_RELOC *)sdata[i];
- nb_relocs = shdr[i].sh_size / shdr[i].sh_entsize;
- }
-
- symtab_sec = find_elf_section(shdr, ehdr.e_shnum, shstr, ".symtab");
- if (!symtab_sec)
- error("could not find .symtab section");
- strtab_sec = &shdr[symtab_sec->sh_link];
-
- symtab = (ElfW(Sym) *)sdata[symtab_sec - shdr];
- strtab = (char *)sdata[symtab_sec->sh_link];
-
- nb_syms = symtab_sec->sh_size / sizeof(ElfW(Sym));
- if (do_swap) {
- for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- swab32s(&sym->st_name);
- swabls(&sym->st_value);
- swabls(&sym->st_size);
- swab16s(&sym->st_shndx);
- }
- }
- close(fd);
- return 0;
-}
-
-#endif /* CONFIG_FORMAT_ELF */
-
-#ifdef CONFIG_FORMAT_COFF
-
-/* COFF file info */
-struct external_scnhdr *shdr;
-uint8_t **sdata;
-struct external_filehdr fhdr;
-struct external_syment *coff_symtab;
-char *strtab;
-int coff_text_shndx, coff_data_shndx;
-
-int data_shndx;
-
-#define STRTAB_SIZE 4
-
-#define DIR32 0x06
-#define DISP32 0x14
-
-#define T_FUNCTION 0x20
-#define C_EXTERNAL 2
-
-void sym_ent_name(struct external_syment *ext_sym, EXE_SYM *sym)
-{
- char *q;
- int c, i, len;
-
- if (ext_sym->e.e.e_zeroes != 0) {
- q = sym->st_name;
- for(i = 0; i < 8; i++) {
- c = ext_sym->e.e_name[i];
- if (c == '\0')
- break;
- *q++ = c;
- }
- *q = '\0';
- } else {
- pstrcpy(sym->st_name, sizeof(sym->st_name), strtab +
ext_sym->e.e.e_offset);
- }
-
- /* now convert the name to a C name (suppress the leading '_') */
- if (sym->st_name[0] == '_') {
- len = strlen(sym->st_name);
- memmove(sym->st_name, sym->st_name + 1, len - 1);
- sym->st_name[len - 1] = '\0';
- }
-}
-
-char *name_for_dotdata(struct coff_rel *rel)
-{
- int i;
- struct coff_sym *sym;
- uint32_t text_data;
-
- text_data = *(uint32_t *)(text + rel->r_offset);
-
- for (i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- if (sym->st_syment->e_scnum == data_shndx &&
- text_data >= sym->st_value &&
- text_data < sym->st_value + sym->st_size) {
-
- return sym->st_name;
-
- }
- }
- return NULL;
-}
-
-static char *get_sym_name(EXE_SYM *sym)
-{
- return sym->st_name;
-}
-
-static char *get_rel_sym_name(EXE_RELOC *rel)
-{
- char *name;
- name = get_sym_name(symtab + *(uint32_t *)(rel->r_reloc->r_symndx));
- if (!strcmp(name, ".data"))
- name = name_for_dotdata(rel);
- if (name[0] == '.')
- return NULL;
- return name;
-}
-
-static host_ulong get_rel_offset(EXE_RELOC *rel)
-{
- return rel->r_offset;
-}
-
-struct external_scnhdr *find_coff_section(struct external_scnhdr *shdr, int
shnum, const char *name)
-{
- int i;
- const char *shname;
- struct external_scnhdr *sec;
-
- for(i = 0; i < shnum; i++) {
- sec = &shdr[i];
- if (!sec->s_name)
- continue;
- shname = sec->s_name;
- if (!strcmp(shname, name))
- return sec;
- }
- return NULL;
-}
-
-/* load a coff object file */
-int load_object(const char *filename)
-{
- int fd;
- struct external_scnhdr *sec, *text_sec, *data_sec;
- int i;
- struct external_syment *ext_sym;
- struct external_reloc *coff_relocs;
- struct external_reloc *ext_rel;
- uint32_t *n_strtab;
- EXE_SYM *sym;
- EXE_RELOC *rel;
- const char *p;
- int aux_size, j;
-
- fd = open(filename, O_RDONLY
-#ifdef _WIN32
- | O_BINARY
-#endif
- );
- if (fd < 0)
- error("can't open file '%s'", filename);
-
- /* Read COFF header. */
- if (read(fd, &fhdr, sizeof (fhdr)) != sizeof (fhdr))
- error("unable to read file header");
-
- /* Check COFF identification. */
- if (fhdr.f_magic != I386MAGIC) {
- error("bad COFF header");
- }
- do_swap = 0;
-
- /* read section headers */
- shdr = load_data(fd, sizeof(struct external_filehdr) + fhdr.f_opthdr,
fhdr.f_nscns * sizeof(struct external_scnhdr));
-
- /* read all section data */
- sdata = malloc(sizeof(void *) * fhdr.f_nscns);
- memset(sdata, 0, sizeof(void *) * fhdr.f_nscns);
-
- for(i = 0;i < fhdr.f_nscns; i++) {
- sec = &shdr[i];
- if (!strstart(sec->s_name, ".bss", &p))
- sdata[i] = load_data(fd, sec->s_scnptr, sec->s_size);
- }
-
-
- /* text section */
- text_sec = find_coff_section(shdr, fhdr.f_nscns, ".text");
- if (!text_sec)
- error("could not find .text section");
- coff_text_shndx = text_sec - shdr;
- text = sdata[coff_text_shndx];
-
- /* data section */
- data_sec = find_coff_section(shdr, fhdr.f_nscns, ".data");
- if (!data_sec)
- error("could not find .data section");
- coff_data_shndx = data_sec - shdr;
-
- coff_symtab = load_data(fd, fhdr.f_symptr, fhdr.f_nsyms*SYMESZ);
- for (i = 0, ext_sym = coff_symtab; i < nb_syms; i++, ext_sym++) {
- for(i=0;i<8;i++)
- printf(" %02x", ((uint8_t *)ext_sym->e.e_name)[i]);
- printf("\n");
- }
-
-
- n_strtab = load_data(fd, (fhdr.f_symptr + fhdr.f_nsyms*SYMESZ),
STRTAB_SIZE);
- strtab = load_data(fd, (fhdr.f_symptr + fhdr.f_nsyms*SYMESZ), *n_strtab);
-
- nb_syms = fhdr.f_nsyms;
-
- for (i = 0, ext_sym = coff_symtab; i < nb_syms; i++, ext_sym++) {
- if (strstart(ext_sym->e.e_name, ".text", NULL))
- text_shndx = ext_sym->e_scnum;
- if (strstart(ext_sym->e.e_name, ".data", NULL))
- data_shndx = ext_sym->e_scnum;
- }
-
- /* set coff symbol */
- symtab = malloc(sizeof(struct coff_sym) * nb_syms);
-
- for (i = 0, ext_sym = coff_symtab, sym = symtab; i < nb_syms; i++,
ext_sym++, sym++) {
- memset(sym, 0, sizeof(*sym));
- sym->st_syment = ext_sym;
- sym_ent_name(ext_sym, sym);
- sym->st_value = ext_sym->e_value;
-
- aux_size = *(int8_t *)ext_sym->e_numaux;
- if (ext_sym->e_scnum == text_shndx && ext_sym->e_type ==
T_FUNCTION) {
- for (j = aux_size + 1; j < nb_syms - i; j++) {
- if ((ext_sym + j)->e_scnum == text_shndx &&
- (ext_sym + j)->e_type == T_FUNCTION ){
- sym->st_size = (ext_sym + j)->e_value -
ext_sym->e_value;
- break;
- } else if (j == nb_syms - i - 1) {
- sec = &shdr[coff_text_shndx];
- sym->st_size = sec->s_size -
ext_sym->e_value;
- break;
- }
- }
- } else if (ext_sym->e_scnum == data_shndx && *(uint8_t
*)ext_sym->e_sclass == C_EXTERNAL) {
- for (j = aux_size + 1; j < nb_syms - i; j++) {
- if ((ext_sym + j)->e_scnum == data_shndx) {
- sym->st_size = (ext_sym + j)->e_value -
ext_sym->e_value;
- break;
- } else if (j == nb_syms - i - 1) {
- sec = &shdr[coff_data_shndx];
- sym->st_size = sec->s_size -
ext_sym->e_value;
- break;
- }
- }
- } else {
- sym->st_size = 0;
- }
-
- sym->st_type = ext_sym->e_type;
- sym->st_shndx = ext_sym->e_scnum;
- }
-
-
- /* find text relocations, if any */
- sec = &shdr[coff_text_shndx];
- coff_relocs = load_data(fd, sec->s_relptr, sec->s_nreloc*RELSZ);
- nb_relocs = sec->s_nreloc;
-
- /* set coff relocation */
- relocs = malloc(sizeof(struct coff_rel) * nb_relocs);
- for (i = 0, ext_rel = coff_relocs, rel = relocs; i < nb_relocs;
- i++, ext_rel++, rel++) {
- memset(rel, 0, sizeof(*rel));
- rel->r_reloc = ext_rel;
- rel->r_offset = *(uint32_t *)ext_rel->r_vaddr;
- rel->r_type = *(uint16_t *)ext_rel->r_type;
- }
- return 0;
-}
-
-#endif /* CONFIG_FORMAT_COFF */
-
-#ifdef CONFIG_FORMAT_MACH
-
-/* File Header */
-struct mach_header mach_hdr;
-
-/* commands */
-struct segment_command *segment = 0;
-struct dysymtab_command *dysymtabcmd = 0;
-struct symtab_command *symtabcmd = 0;
-
-/* section */
-struct section *section_hdr;
-struct section *text_sec_hdr;
-uint8_t **sdata;
-
-/* relocs */
-struct relocation_info *relocs;
-
-/* symbols */
-EXE_SYM *symtab;
-struct nlist *symtab_std;
-char *strtab;
-
-/* indirect symbols */
-uint32_t *tocdylib;
-
-/* Utility functions */
-
-static inline char *find_str_by_index(int index)
-{
- return strtab+index;
-}
-
-/* Used by dyngen common code */
-static char *get_sym_name(EXE_SYM *sym)
-{
- char *name = find_str_by_index(sym->n_un.n_strx);
-
- if ( sym->n_type & N_STAB ) /* Debug symbols are ignored */
- return "debug";
-
- if(!name)
- return name;
- if(name[0]=='_')
- return name + 1;
- else
- return name;
-}
-
-/* find a section index given its segname, sectname */
-static int find_mach_sec_index(struct section *section_hdr, int shnum, const
char *segname,
- const char *sectname)
-{
- int i;
- struct section *sec = section_hdr;
-
- for(i = 0; i < shnum; i++, sec++) {
- if (!sec->segname || !sec->sectname)
- continue;
- if (!strcmp(sec->sectname, sectname) && !strcmp(sec->segname, segname))
- return i;
- }
- return -1;
-}
-
-/* find a section header given its segname, sectname */
-struct section *find_mach_sec_hdr(struct section *section_hdr, int shnum,
const char *segname,
- const char *sectname)
-{
- int index = find_mach_sec_index(section_hdr, shnum, segname, sectname);
- if(index == -1)
- return NULL;
- return section_hdr+index;
-}
-
-
-static inline void fetch_next_pair_value(struct relocation_info * rel,
unsigned int *value)
-{
- struct scattered_relocation_info * scarel;
-
- if(R_SCATTERED & rel->r_address) {
- scarel = (struct scattered_relocation_info*)rel;
- if(scarel->r_type != PPC_RELOC_PAIR)
- error("fetch_next_pair_value: looking for a pair which was not
found (1)");
- *value = scarel->r_value;
- } else {
- if(rel->r_type != PPC_RELOC_PAIR)
- error("fetch_next_pair_value: looking for a pair which
was not found (2)");
- *value = rel->r_address;
- }
-}
-
-/* find a sym name given its value, in a section number */
-static const char * find_sym_with_value_and_sec_number( int value, int
sectnum, int * offset )
-{
- int i, ret = -1;
-
- for( i = 0 ; i < nb_syms; i++ )
- {
- if( !(symtab[i].n_type & N_STAB) && (symtab[i].n_type & N_SECT) &&
- (symtab[i].n_sect == sectnum) && (symtab[i].st_value
<= value) )
- {
- if( (ret<0) || (symtab[i].st_value >=
symtab[ret].st_value) )
- ret = i;
- }
- }
- if( ret < 0 ) {
- *offset = 0;
- return 0;
- } else {
- *offset = value - symtab[ret].st_value;
- return get_sym_name(&symtab[ret]);
- }
-}
-
-/*
- * Find symbol name given a (virtual) address, and a section which is of type
- * S_NON_LAZY_SYMBOL_POINTERS or S_LAZY_SYMBOL_POINTERS or S_SYMBOL_STUBS
- */
-static const char * find_reloc_name_in_sec_ptr(int address, struct section *
sec_hdr)
-{
- unsigned int tocindex, symindex, size;
- const char *name = 0;
-
- /* Sanity check */
- if(!( address >= sec_hdr->addr && address < (sec_hdr->addr +
sec_hdr->size) ) )
- return (char*)0;
-
- if( sec_hdr->flags & S_SYMBOL_STUBS ){
- size = sec_hdr->reserved2;
- if(size == 0)
- error("size = 0");
-
- }
- else if( sec_hdr->flags & S_LAZY_SYMBOL_POINTERS ||
- sec_hdr->flags & S_NON_LAZY_SYMBOL_POINTERS)
- size = sizeof(unsigned long);
- else
- return 0;
-
- /* Compute our index in toc */
- tocindex = (address - sec_hdr->addr)/size;
- symindex = tocdylib[sec_hdr->reserved1 + tocindex];
-
- name = get_sym_name(&symtab[symindex]);
-
- return name;
-}
-
-static const char * find_reloc_name_given_its_address(int address)
-{
- unsigned int i;
- for(i = 0; i < segment->nsects ; i++)
- {
- const char * name = find_reloc_name_in_sec_ptr(address,
§ion_hdr[i]);
- if((long)name != -1)
- return name;
- }
- return 0;
-}
-
-static const char * get_reloc_name(EXE_RELOC * rel, int * sslide)
-{
- char * name = 0;
- struct scattered_relocation_info * sca_rel = (struct
scattered_relocation_info*)rel;
- int sectnum = rel->r_symbolnum;
- int sectoffset;
- int other_half=0;
-
- /* init the slide value */
- *sslide = 0;
-
- if(R_SCATTERED & rel->r_address)
- return (char
*)find_reloc_name_given_its_address(sca_rel->r_value);
-
- if(rel->r_extern)
- {
- /* ignore debug sym */
- if ( symtab[rel->r_symbolnum].n_type & N_STAB )
- return 0;
- return get_sym_name(&symtab[rel->r_symbolnum]);
- }
-
- /* Intruction contains an offset to the symbols pointed to, in the
rel->r_symbolnum section */
- sectoffset = *(uint32_t *)(text + rel->r_address) & 0xffff;
-
- if(sectnum==0xffffff)
- return 0;
-
- /* Sanity Check */
- if(sectnum > segment->nsects)
- error("sectnum > segment->nsects");
-
- switch(rel->r_type)
- {
- case PPC_RELOC_LO16: fetch_next_pair_value(rel+1, &other_half);
sectoffset |= (other_half << 16);
- break;
- case PPC_RELOC_HI16: fetch_next_pair_value(rel+1, &other_half);
sectoffset = (sectoffset << 16) | (uint16_t)(other_half & 0xffff);
- break;
- case PPC_RELOC_HA16: fetch_next_pair_value(rel+1, &other_half);
sectoffset = (sectoffset << 16) + (int16_t)(other_half & 0xffff);
- break;
- case PPC_RELOC_BR24:
- sectoffset = ( *(uint32_t *)(text + rel->r_address) &
0x03fffffc );
- if (sectoffset & 0x02000000) sectoffset |= 0xfc000000;
- break;
- default:
- error("switch(rel->type) not found");
- }
-
- if(rel->r_pcrel)
- sectoffset += rel->r_address;
-
- if (rel->r_type == PPC_RELOC_BR24)
- name = (char *)find_reloc_name_in_sec_ptr((int)sectoffset,
§ion_hdr[sectnum-1]);
-
- /* search it in the full symbol list, if not found */
- if(!name)
- name = (char *)find_sym_with_value_and_sec_number(sectoffset,
sectnum, sslide);
-
- return name;
-}
-
-/* Used by dyngen common code */
-static const char * get_rel_sym_name(EXE_RELOC * rel)
-{
- int sslide;
- return get_reloc_name( rel, &sslide);
-}
-
-/* Used by dyngen common code */
-static host_ulong get_rel_offset(EXE_RELOC *rel)
-{
- struct scattered_relocation_info * sca_rel = (struct
scattered_relocation_info*)rel;
- if(R_SCATTERED & rel->r_address)
- return sca_rel->r_address;
- else
- return rel->r_address;
-}
-
-/* load a mach-o object file */
-int load_object(const char *filename)
-{
- int fd;
- unsigned int offset_to_segment = 0;
- unsigned int offset_to_dysymtab = 0;
- unsigned int offset_to_symtab = 0;
- struct load_command lc;
- unsigned int i, j;
- EXE_SYM *sym;
- struct nlist *syment;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- error("can't open file '%s'", filename);
-
- /* Read Mach header. */
- if (read(fd, &mach_hdr, sizeof (mach_hdr)) != sizeof (mach_hdr))
- error("unable to read file header");
-
- /* Check Mach identification. */
- if (!check_mach_header(mach_hdr)) {
- error("bad Mach header");
- }
-
- if (mach_hdr.cputype != CPU_TYPE_POWERPC)
- error("Unsupported CPU");
-
- if (mach_hdr.filetype != MH_OBJECT)
- error("Unsupported Mach Object");
-
- /* read segment headers */
- for(i=0, j=sizeof(mach_hdr); i<mach_hdr.ncmds ; i++)
- {
- if(read(fd, &lc, sizeof(struct load_command)) != sizeof(struct
load_command))
- error("unable to read load_command");
- if(lc.cmd == LC_SEGMENT)
- {
- offset_to_segment = j;
- lseek(fd, offset_to_segment, SEEK_SET);
- segment = malloc(sizeof(struct segment_command));
- if(read(fd, segment, sizeof(struct segment_command)) !=
sizeof(struct segment_command))
- error("unable to read LC_SEGMENT");
- }
- if(lc.cmd == LC_DYSYMTAB)
- {
- offset_to_dysymtab = j;
- lseek(fd, offset_to_dysymtab, SEEK_SET);
- dysymtabcmd = malloc(sizeof(struct dysymtab_command));
- if(read(fd, dysymtabcmd, sizeof(struct dysymtab_command)) !=
sizeof(struct dysymtab_command))
- error("unable to read LC_DYSYMTAB");
- }
- if(lc.cmd == LC_SYMTAB)
- {
- offset_to_symtab = j;
- lseek(fd, offset_to_symtab, SEEK_SET);
- symtabcmd = malloc(sizeof(struct symtab_command));
- if(read(fd, symtabcmd, sizeof(struct symtab_command)) !=
sizeof(struct symtab_command))
- error("unable to read LC_SYMTAB");
- }
- j+=lc.cmdsize;
-
- lseek(fd, j, SEEK_SET);
- }
-
- if(!segment)
- error("unable to find LC_SEGMENT");
-
- /* read section headers */
- section_hdr = load_data(fd, offset_to_segment + sizeof(struct
segment_command), segment->nsects * sizeof(struct section));
-
- /* read all section data */
- sdata = (uint8_t **)malloc(sizeof(void *) * segment->nsects);
- memset(sdata, 0, sizeof(void *) * segment->nsects);
-
- /* Load the data in section data */
- for(i = 0; i < segment->nsects; i++) {
- sdata[i] = load_data(fd, section_hdr[i].offset, section_hdr[i].size);
- }
-
- /* text section */
- text_sec_hdr = find_mach_sec_hdr(section_hdr, segment->nsects,
SEG_TEXT, SECT_TEXT);
- i = find_mach_sec_index(section_hdr, segment->nsects, SEG_TEXT,
SECT_TEXT);
- if (i == -1 || !text_sec_hdr)
- error("could not find __TEXT,__text section");
- text = sdata[i];
-
- /* Make sure dysym was loaded */
- if(!(int)dysymtabcmd)
- error("could not find __DYSYMTAB segment");
-
- /* read the table of content of the indirect sym */
- tocdylib = load_data( fd, dysymtabcmd->indirectsymoff,
dysymtabcmd->nindirectsyms * sizeof(uint32_t) );
-
- /* Make sure symtab was loaded */
- if(!(int)symtabcmd)
- error("could not find __SYMTAB segment");
- nb_syms = symtabcmd->nsyms;
-
- symtab_std = load_data(fd, symtabcmd->symoff, symtabcmd->nsyms *
sizeof(struct nlist));
- strtab = load_data(fd, symtabcmd->stroff, symtabcmd->strsize);
-
- symtab = malloc(sizeof(EXE_SYM) * nb_syms);
-
- /* Now transform the symtab, to an extended version, with the sym size,
and the C name */
- for(i = 0, sym = symtab, syment = symtab_std; i < nb_syms; i++, sym++,
syment++) {
- struct nlist *sym_follow, *sym_next = 0;
- unsigned int j;
- memset(sym, 0, sizeof(*sym));
-
- if ( syment->n_type & N_STAB ) /* Debug symbols are skipped */
- continue;
-
- memcpy(sym, syment, sizeof(*syment));
-
- /* Find the following symbol in order to get the current symbol
size */
- for(j = 0, sym_follow = symtab_std; j < nb_syms; j++, sym_follow++) {
- if ( sym_follow->n_sect != 1 || sym_follow->n_type & N_STAB ||
!(sym_follow->n_value > sym->st_value))
- continue;
- if(!sym_next) {
- sym_next = sym_follow;
- continue;
- }
- if(!(sym_next->n_value > sym_follow->n_value))
- continue;
- sym_next = sym_follow;
- }
- if(sym_next)
- sym->st_size = sym_next->n_value - sym->st_value;
- else
- sym->st_size = text_sec_hdr->size - sym->st_value;
- }
-
- /* Find Reloc */
- relocs = load_data(fd, text_sec_hdr->reloff, text_sec_hdr->nreloc *
sizeof(struct relocation_info));
- nb_relocs = text_sec_hdr->nreloc;
-
- close(fd);
- return 0;
-}
-
-#endif /* CONFIG_FORMAT_MACH */
-
-/* return true if the expression is a label reference */
-static int get_reloc_expr(char *name, int name_size, const char *sym_name)
-{
- const char *p;
-
- if (strstart(sym_name, "__op_param", &p)) {
- snprintf(name, name_size, "param%s", p);
- } else if (strstart(sym_name, "__op_gen_label", &p)) {
- snprintf(name, name_size, "param%s", p);
- return 1;
- } else {
-#if defined(HOST_SPARC) || defined(HOST_HPPA)
- if (sym_name[0] == '.')
- snprintf(name, name_size,
- "(long)(&__dot_%s)",
- sym_name + 1);
- else
-#endif
- snprintf(name, name_size, "(long)(&%s)", sym_name);
- }
- return 0;
-}
-
-#ifdef HOST_IA64
-
-#define PLT_ENTRY_SIZE 16 /* 1 bundle containing "brl" */
-
-struct plt_entry {
- struct plt_entry *next;
- const char *name;
- unsigned long addend;
-} *plt_list;
-
-static int
-get_plt_index (const char *name, unsigned long addend)
-{
- struct plt_entry *plt, *prev= NULL;
- int index = 0;
-
- /* see if we already have an entry for this target: */
- for (plt = plt_list; plt; ++index, prev = plt, plt = plt->next)
- if (strcmp(plt->name, name) == 0 && plt->addend == addend)
- return index;
-
- /* nope; create a new PLT entry: */
-
- plt = malloc(sizeof(*plt));
- if (!plt) {
- perror("malloc");
- exit(1);
- }
- memset(plt, 0, sizeof(*plt));
- plt->name = strdup(name);
- plt->addend = addend;
-
- /* append to plt-list: */
- if (prev)
- prev->next = plt;
- else
- plt_list = plt;
- return index;
-}
-
-#endif
-
-#define MAX_ARGS 3
-
-/* generate op code */
-static void gen_code(const char *name, host_ulong offset, host_ulong size,
- FILE *outfile, int gen_switch)
-{
- int copy_size = 0;
- uint8_t *p_start, *p_end;
- host_ulong start_offset;
- int nb_args, i, n;
- uint8_t args_present[MAX_ARGS];
- const char *sym_name, *p;
- EXE_RELOC *rel;
-
- /* Compute exact size excluding prologue and epilogue instructions.
- * Increment start_offset to skip epilogue instructions, then compute
- * copy_size the indicate the size of the remaining instructions (in
- * bytes).
- */
- p_start = text + offset;
- p_end = p_start + size;
- start_offset = offset;
-#if defined(HOST_I386) || defined(HOST_X86_64)
-#ifdef CONFIG_FORMAT_COFF
- {
- uint8_t *p;
- p = p_end - 1;
- if (p == p_start)
- error("empty code for %s", name);
- while (*p != 0xc3) {
- p--;
- if (p <= p_start)
- error("ret or jmp expected at the end of %s", name);
- }
- copy_size = p - p_start;
- }
-#else
- {
- int len;
- len = p_end - p_start;
- if (len == 0)
- error("empty code for %s", name);
- if (p_end[-1] == 0xc3) {
- len--;
- } else {
- error("ret or jmp expected at the end of %s", name);
- }
- copy_size = len;
- }
-#endif
-#elif defined(HOST_PPC)
- {
- uint8_t *p;
- p = (void *)(p_end - 4);
- if (p == p_start)
- error("empty code for %s", name);
- if (get32((uint32_t *)p) != 0x4e800020)
- error("blr expected at the end of %s", name);
- copy_size = p - p_start;
- }
-#elif defined(HOST_S390)
- {
- uint8_t *p;
- p = (void *)(p_end - 2);
- if (p == p_start)
- error("empty code for %s", name);
- if ((get16((uint16_t *)p) & 0xfff0) != 0x07f0)
- error("br expected at the end of %s", name);
- copy_size = p - p_start;
- }
-#elif defined(HOST_ALPHA)
- {
- uint8_t *p;
- p = p_end - 4;
-#if 0
- /* XXX: check why it occurs */
- if (p == p_start)
- error("empty code for %s", name);
-#endif
- if (get32((uint32_t *)p) != 0x6bfa8001)
- error("ret expected at the end of %s", name);
- copy_size = p - p_start;
- }
-#elif defined(HOST_IA64)
- {
- uint8_t *p;
- p = (void *)(p_end - 4);
- if (p == p_start)
- error("empty code for %s", name);
- /* br.ret.sptk.many b0;; */
- /* 08 00 84 00 */
- if (get32((uint32_t *)p) != 0x00840008)
- error("br.ret.sptk.many b0;; expected at the end of %s", name);
- copy_size = p_end - p_start;
- }
-#elif defined(HOST_SPARC)
- {
-#define INSN_SAVE 0x9de3a000
-#define INSN_RET 0x81c7e008
-#define INSN_RETL 0x81c3e008
-#define INSN_RESTORE 0x81e80000
-#define INSN_RETURN 0x81cfe008
-#define INSN_NOP 0x01000000
-#define INSN_ADD_SP 0x9c03a000 // add %sp, nn, %sp
-#define INSN_SUB_SP 0x9c23a000 // sub %sp, nn, %sp
-
- uint32_t start_insn, end_insn1, end_insn2;
- uint8_t *p;
- p = (void *)(p_end - 8);
- if (p <= p_start)
- error("empty code for %s", name);
- start_insn = get32((uint32_t *)(p_start + 0x0));
- end_insn1 = get32((uint32_t *)(p + 0x0));
- end_insn2 = get32((uint32_t *)(p + 0x4));
- if (((start_insn & ~0x1fff) == INSN_SAVE) ||
- (start_insn & ~0x1fff) == INSN_ADD_SP) {
- p_start += 0x4;
- start_offset += 0x4;
- if (end_insn1 == INSN_RET && end_insn2 == INSN_RESTORE)
- /* SPARC v7: ret; restore; */ ;
- else if (end_insn1 == INSN_RETURN && end_insn2 == INSN_NOP)
- /* SPARC v9: return; nop; */ ;
- else if (end_insn1 == INSN_RETL && (end_insn2 & ~0x1fff) ==
INSN_SUB_SP)
- /* SPARC v7: retl; sub %sp, nn, %sp; */ ;
- else
-
- error("ret; restore; not found at end of %s", name);
- } else if (end_insn1 == INSN_RETL && end_insn2 == INSN_NOP) {
- ;
- } else {
- error("No save at the beginning of %s", name);
- }
-#if 0
- /* Skip a preceeding nop, if present. */
- if (p > p_start) {
- skip_insn = get32((uint32_t *)(p - 0x4));
- if (skip_insn == INSN_NOP)
- p -= 4;
- }
-#endif
- copy_size = p - p_start;
- }
-#elif defined(HOST_SPARC64)
- {
-#define INSN_SAVE 0x9de3a000
-#define INSN_RET 0x81c7e008
-#define INSN_RETL 0x81c3e008
-#define INSN_RESTORE 0x81e80000
-#define INSN_RETURN 0x81cfe008
-#define INSN_NOP 0x01000000
-#define INSN_ADD_SP 0x9c03a000 // add %sp, nn, %sp
-#define INSN_SUB_SP 0x9c23a000 // sub %sp, nn, %sp
-
- uint32_t start_insn, end_insn1, end_insn2, skip_insn;
- uint8_t *p;
- p = (void *)(p_end - 8);
-#if 0
- /* XXX: check why it occurs */
- if (p <= p_start)
- error("empty code for %s", name);
-#endif
- start_insn = get32((uint32_t *)(p_start + 0x0));
- end_insn1 = get32((uint32_t *)(p + 0x0));
- end_insn2 = get32((uint32_t *)(p + 0x4));
- if (((start_insn & ~0x1fff) == INSN_SAVE) ||
- (start_insn & ~0x1fff) == INSN_ADD_SP) {
- p_start += 0x4;
- start_offset += 0x4;
- if (end_insn1 == INSN_RET && end_insn2 == INSN_RESTORE)
- /* SPARC v7: ret; restore; */ ;
- else if (end_insn1 == INSN_RETURN && end_insn2 == INSN_NOP)
- /* SPARC v9: return; nop; */ ;
- else if (end_insn1 == INSN_RETL && (end_insn2 & ~0x1fff) ==
INSN_SUB_SP)
- /* SPARC v7: retl; sub %sp, nn, %sp; */ ;
- else
-
- error("ret; restore; not found at end of %s", name);
- } else if (end_insn1 == INSN_RETL && end_insn2 == INSN_NOP) {
- ;
- } else {
- error("No save at the beginning of %s", name);
- }
-
-#if 0
- /* Skip a preceeding nop, if present. */
- if (p > p_start) {
- skip_insn = get32((uint32_t *)(p - 0x4));
- if (skip_insn == 0x01000000)
- p -= 4;
- }
-#endif
-
- copy_size = p - p_start;
- }
-#elif defined(HOST_M68K)
- {
- uint8_t *p;
- p = (void *)(p_end - 2);
- if (p == p_start)
- error("empty code for %s", name);
- // remove NOP's, probably added for alignment
- while ((get16((uint16_t *)p) == 0x4e71) &&
- (p>p_start))
- p -= 2;
- if (get16((uint16_t *)p) != 0x4e75)
- error("rts expected at the end of %s", name);
- copy_size = p - p_start;
- }
-#elif defined(HOST_HPPA)
- {
- uint8_t *p;
- p = p_start;
- while (p < p_end) {
- uint32_t insn = get32((uint32_t *)p);
- if (insn == 0x6bc23fd9 || /* stw rp,-14(sp) */
- insn == 0x08030241 || /* copy r3,r1 */
- insn == 0x081e0243 || /* copy sp,r3 */
- (insn & 0xffffc000) == 0x37de0000 || /* ldo x(sp),sp */
- (insn & 0xffffc000) == 0x6fc10000) /* stwm r1,x(sp) */
- p += 4;
- else
- break;
- }
- start_offset += p - p_start;
- p_start = p;
- p = p_end - 4;
-
- while (p > p_start) {
- uint32_t insn = get32((uint32_t *)p);
- if ((insn & 0xffffc000) == 0x347e0000 || /* ldo x(r3),sp */
- (insn & 0xffe0c000) == 0x4fc00000 || /* ldwm x(sp),rx */
- (insn & 0xffffc000) == 0x37de0000 || /* ldo x(sp),sp */
- insn == 0x48623fd9 || /* ldw -14(r3),rp */
- insn == 0xe840c000 || /* bv r0(rp) */
- insn == 0xe840c002) /* bv,n r0(rp) */
- p -= 4;
- else
- break;
- }
- p += 4;
- if (p <= p_start)
- error("empty code for %s", name);
-
- copy_size = p - p_start;
- }
-#elif defined(HOST_MIPS) || defined(HOST_MIPS64)
- {
-#define INSN_RETURN 0x03e00008
-#define INSN_NOP 0x00000000
-
- uint8_t *p = p_end;
-
- if (p < (p_start + 0x8)) {
- error("empty code for %s", name);
- } else {
- uint32_t end_insn1, end_insn2;
-
- p -= 0x8;
- end_insn1 = get32((uint32_t *)(p + 0x0));
- end_insn2 = get32((uint32_t *)(p + 0x4));
- if (end_insn1 != INSN_RETURN && end_insn2 != INSN_NOP)
- error("jr ra not found at end of %s", name);
- }
- copy_size = p - p_start;
- }
-#elif defined(HOST_ARM)
- error("dyngen targets not supported on ARM");
-#elif defined(HOST_PPC64)
- error("dyngen targets not supported on PPC64");
-#else
-#error unsupported CPU
-#endif
-
- /* compute the number of arguments by looking at the relocations */
- for(i = 0;i < MAX_ARGS; i++)
- args_present[i] = 0;
-
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- host_ulong offset = get_rel_offset(rel);
- if (offset >= start_offset &&
- offset < start_offset + (p_end - p_start)) {
- sym_name = get_rel_sym_name(rel);
- if(!sym_name)
- continue;
- if (strstart(sym_name, "__op_param", &p) ||
- strstart(sym_name, "__op_gen_label", &p)) {
- n = strtoul(p, NULL, 10);
- if (n > MAX_ARGS)
- error("too many arguments in %s", name);
- args_present[n - 1] = 1;
- }
- }
- }
-
- nb_args = 0;
- while (nb_args < MAX_ARGS && args_present[nb_args])
- nb_args++;
- for(i = nb_args; i < MAX_ARGS; i++) {
- if (args_present[i])
- error("inconsistent argument numbering in %s", name);
- }
-
- if (gen_switch == 2) {
-
-#if defined(HOST_HPPA)
- int op_size = copy_size;
- int has_stubs = 0;
- char relname[256];
- int type, is_label;
-
- for (i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = get_rel_sym_name(rel);
- sym_name = strtab + symtab[ELF32_R_SYM(rel->r_info)].st_name;
- is_label = get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
-
- if (!is_label && type == R_PARISC_PCREL17F) {
- has_stubs = 1;
- op_size += 8; /* ldil and be,n instructions */
- }
- }
- }
-
- if (has_stubs)
- op_size += 4; /* b,l,n instruction, to skip past the stubs */
-
- fprintf(outfile, "DEF(%s, %d, %d)\n", name + 3, nb_args, op_size);
-#else
- fprintf(outfile, "DEF(%s, %d, %d)\n", name + 3, nb_args, copy_size);
-#endif
-
- } else if (gen_switch == 1) {
-
- /* output C code */
- fprintf(outfile, "case INDEX_%s: {\n", name);
- if (nb_args > 0) {
- fprintf(outfile, " long ");
- for(i = 0; i < nb_args; i++) {
- if (i != 0)
- fprintf(outfile, ", ");
- fprintf(outfile, "param%d", i + 1);
- }
- fprintf(outfile, ";\n");
- }
-#if defined(HOST_IA64)
- fprintf(outfile, " extern char %s;\n", name);
-#else
- fprintf(outfile, " extern void %s();\n", name);
-#endif
-
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- host_ulong offset = get_rel_offset(rel);
- if (offset >= start_offset &&
- offset < start_offset + (p_end - p_start)) {
- sym_name = get_rel_sym_name(rel);
- if(!sym_name)
- continue;
- if (*sym_name &&
- !strstart(sym_name, "__op_param", NULL) &&
- !strstart(sym_name, "__op_jmp", NULL) &&
- !strstart(sym_name, "__op_gen_label", NULL)) {
-#if defined(HOST_SPARC) || defined(HOST_HPPA)
- if (sym_name[0] == '.') {
- fprintf(outfile,
- "extern char __dot_%s __asm__(\"%s\");\n",
- sym_name+1, sym_name);
- continue;
- }
-#endif
-#if defined(__APPLE__)
- /* Set __attribute((unused)) on darwin because we
- want to avoid warning when we don't use the symbol. */
- fprintf(outfile, " extern char %s
__attribute__((unused));\n", sym_name);
-#elif defined(HOST_IA64)
- if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
- /*
- * PCREL21 br.call targets generally
- * are out of range and need to go
- * through an "import stub".
- */
- fprintf(outfile, " extern char %s;\n",
- sym_name);
-#else
- fprintf(outfile, "extern char %s;\n", sym_name);
-#endif
- }
- }
- }
-
-#ifdef __hppa__
- fprintf(outfile, " memcpy(gen_code_ptr, (void *)((char
*)__canonicalize_funcptr_for_compare(%s)+%d), %d);\n",
- name, (int)(start_offset - offset),
copy_size);
-#else
- fprintf(outfile, " memcpy(gen_code_ptr, (void *)((char *)&%s+%d),
%d);\n",
- name, (int)(start_offset - offset),
copy_size);
-#endif
-
- /* emit code offset information */
- {
- EXE_SYM *sym;
- const char *sym_name, *p;
- host_ulong val;
- int n;
-
- for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- sym_name = get_sym_name(sym);
- if (strstart(sym_name, "__op_label", &p)) {
- uint8_t *ptr;
- unsigned long offset;
-
- /* test if the variable refers to a label inside
- the code we are generating */
-#ifdef CONFIG_FORMAT_COFF
- if (sym->st_shndx == text_shndx) {
- ptr = sdata[coff_text_shndx];
- } else if (sym->st_shndx == data_shndx) {
- ptr = sdata[coff_data_shndx];
- } else {
- ptr = NULL;
- }
-#elif defined(CONFIG_FORMAT_MACH)
- if(!sym->n_sect)
- continue;
- ptr = sdata[sym->n_sect-1];
-#else
- ptr = sdata[sym->st_shndx];
-#endif
- if (!ptr)
- error("__op_labelN in invalid section");
- offset = sym->st_value;
-#ifdef CONFIG_FORMAT_MACH
- offset -= section_hdr[sym->n_sect-1].addr;
-#endif
- val = *(host_ulong *)(ptr + offset);
-#ifdef ELF_USES_RELOCA
- {
- int reloc_shndx, nb_relocs1, j;
-
- /* try to find a matching relocation */
- reloc_shndx = find_reloc(sym->st_shndx);
- if (reloc_shndx) {
- nb_relocs1 = shdr[reloc_shndx].sh_size /
- shdr[reloc_shndx].sh_entsize;
- rel = (ELF_RELOC *)sdata[reloc_shndx];
- for(j = 0; j < nb_relocs1; j++) {
- if (rel->r_offset == offset) {
- val = rel->r_addend;
- break;
- }
- rel++;
- }
- }
- }
-#endif
- if (val >= start_offset && val <= start_offset +
copy_size) {
- n = strtol(p, NULL, 10);
- fprintf(outfile, " label_offsets[%d] = %ld +
(gen_code_ptr - gen_code_buf);\n", n, (long)(val - start_offset));
- }
- }
- }
- }
-
- /* load parameters in variables */
- for(i = 0; i < nb_args; i++) {
- fprintf(outfile, " param%d = *opparam_ptr++;\n", i + 1);
- }
-
- /* patch relocations */
-#if defined(HOST_I386)
- {
- char relname[256];
- int type, is_label;
- int addend;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = get_rel_sym_name(rel);
- if (!sym_name)
- continue;
- reloc_offset = rel->r_offset - start_offset;
- if (strstart(sym_name, "__op_jmp", &p)) {
- int n;
- n = strtol(p, NULL, 10);
- /* __op_jmp relocations are done at
- runtime to do translated block
- chaining: the offset of the instruction
- needs to be stored */
- fprintf(outfile, " jmp_offsets[%d] = %d +
(gen_code_ptr - gen_code_buf);\n",
- n, reloc_offset);
- continue;
- }
-
- is_label = get_reloc_expr(relname, sizeof(relname),
sym_name);
- addend = get32((uint32_t *)(text + rel->r_offset));
-#ifdef CONFIG_FORMAT_ELF
- type = ELF32_R_TYPE(rel->r_info);
- if (is_label) {
- switch(type) {
- case R_386_32:
- case R_386_PC32:
- fprintf(outfile, " tcg_out_reloc(s,
gen_code_ptr + %d, %d, %s, %d);\n",
- reloc_offset, type, relname, addend);
- break;
- default:
- error("unsupported i386 relocation (%d)", type);
- }
- } else {
- switch(type) {
- case R_386_32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_386_PC32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s - (long)(gen_code_ptr + %d) + %d;\n",
- reloc_offset, relname, reloc_offset,
addend);
- break;
- default:
- error("unsupported i386 relocation (%d)", type);
- }
- }
-#elif defined(CONFIG_FORMAT_COFF)
- {
- char *temp_name;
- int j;
- EXE_SYM *sym;
- temp_name = get_sym_name(symtab + *(uint32_t
*)(rel->r_reloc->r_symndx));
- if (!strcmp(temp_name, ".data")) {
- for (j = 0, sym = symtab; j < nb_syms; j++, sym++)
{
- if (strstart(sym->st_name, sym_name, NULL)) {
- addend -= sym->st_value;
- }
- }
- }
- }
- type = rel->r_type;
- if (is_label) {
-/* TCG uses elf relocation constants */
-#define R_386_32 1
-#define R_386_PC32 2
- switch(type) {
- case DIR32:
- type = R_386_32;
- goto do_reloc;
- case DISP32:
- type = R_386_PC32;
- addend -= 4;
- do_reloc:
- fprintf(outfile, " tcg_out_reloc(s,
gen_code_ptr + %d, %d, %s, %d);\n",
- reloc_offset, type, relname, addend);
- break;
- default:
- error("unsupported i386 relocation (%d)", type);
- }
- } else {
- switch(type) {
- case DIR32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case DISP32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s - (long)(gen_code_ptr + %d) + %d -4;\n",
- reloc_offset, relname, reloc_offset,
addend);
- break;
- default:
- error("unsupported i386 relocation (%d)", type);
- }
- }
-#else
-#error unsupport object format
-#endif
- }
- }
- }
-#elif defined(HOST_X86_64)
- {
- char relname[256];
- int type, is_label;
- int addend;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = strtab +
symtab[ELFW(R_SYM)(rel->r_info)].st_name;
- is_label = get_reloc_expr(relname, sizeof(relname),
sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
- if (is_label) {
- switch(type) {
- case R_X86_64_32:
- case R_X86_64_32S:
- case R_X86_64_PC32:
- fprintf(outfile, " tcg_out_reloc(s,
gen_code_ptr + %d, %d, %s, %d);\n",
- reloc_offset, type, relname, addend);
- break;
- default:
- error("unsupported X86_64 relocation (%d)", type);
- }
- } else {
- switch(type) {
- case R_X86_64_32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = (uint32_t)%s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_X86_64_32S:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = (int32_t)%s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_X86_64_PC32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s - (long)(gen_code_ptr + %d) + %d;\n",
- reloc_offset, relname, reloc_offset,
addend);
- break;
- default:
- error("unsupported X86_64 relocation (%d)", type);
- }
- }
- }
- }
- }
-#elif defined(HOST_PPC)
- {
-#ifdef CONFIG_FORMAT_ELF
- char relname[256];
- int type;
- int addend;
- int is_label;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = strtab +
symtab[ELFW(R_SYM)(rel->r_info)].st_name;
- reloc_offset = rel->r_offset - start_offset;
- if (strstart(sym_name, "__op_jmp", &p)) {
- int n;
- n = strtol(p, NULL, 10);
- /* __op_jmp relocations are done at
- runtime to do translated block
- chaining: the offset of the instruction
- needs to be stored */
- fprintf(outfile, " jmp_offsets[%d] = %d +
(gen_code_ptr - gen_code_buf);\n",
- n, reloc_offset);
- continue;
- }
-
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- is_label = get_reloc_expr(relname, sizeof(relname),
sym_name);
- addend = rel->r_addend;
- if (is_label) {
- switch (type) {
- case R_PPC_REL24:
- fprintf (outfile, " tcg_out_reloc(s,
gen_code_ptr + %d, %d, %s, %d);\n",
- reloc_offset, type, relname, addend);
- break;
- default:
- error ("unsupported ppc relocation (%d)",
type);
- }
- }
- else {
- switch(type) {
- case R_PPC_ADDR32:
- fprintf(outfile, " *(uint32_t
*)(gen_code_ptr + %d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_PPC_ADDR16_LO:
- fprintf(outfile, " *(uint16_t
*)(gen_code_ptr + %d) = (%s + %d);\n",
- reloc_offset, relname, addend);
- break;
- case R_PPC_ADDR16_HI:
- fprintf(outfile, " *(uint16_t
*)(gen_code_ptr + %d) = (%s + %d) >> 16;\n",
- reloc_offset, relname, addend);
- break;
- case R_PPC_ADDR16_HA:
- fprintf(outfile, " *(uint16_t
*)(gen_code_ptr + %d) = (%s + %d + 0x8000) >> 16;\n",
- reloc_offset, relname, addend);
- break;
- case R_PPC_REL24:
- /* warning: must be at 32 MB distancy */
- fprintf(outfile, "{\n"
- " long disp = (%s -
(long)(gen_code_ptr + %d) + %d);\n"
- " if ((disp << 6) >> 6 != disp)
{;\n"
- " fprintf(stderr, \"Branch
target is too far away\\n\");"
- " abort();\n"
- " }\n"
- "}\n",
- relname, reloc_offset, addend);
- fprintf(outfile, " *(uint32_t
*)(gen_code_ptr + %d) = (*(uint32_t *)(gen_code_ptr + %d) & ~0x03fffffc) | ((%s
- (long)(gen_code_ptr + %d) + %d) & 0x03fffffc);\n",
- reloc_offset, reloc_offset, relname,
reloc_offset, addend);
- break;
- default:
- error("unsupported powerpc relocation (%d)",
type);
- }
- }
- }
- }
-#elif defined(CONFIG_FORMAT_MACH)
- struct scattered_relocation_info *scarel;
- struct relocation_info * rel;
- char final_sym_name[256];
- const char *sym_name;
- const char *p;
- int slide, sslide;
- int i;
-
- for(i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
- unsigned int offset, length, value = 0;
- unsigned int type, pcrel, isym = 0;
- unsigned int usesym = 0;
-
- if(R_SCATTERED & rel->r_address) {
- scarel = (struct scattered_relocation_info*)rel;
- offset = (unsigned int)scarel->r_address;
- length = scarel->r_length;
- pcrel = scarel->r_pcrel;
- type = scarel->r_type;
- value = scarel->r_value;
- } else {
- value = isym = rel->r_symbolnum;
- usesym = (rel->r_extern);
- offset = rel->r_address;
- length = rel->r_length;
- pcrel = rel->r_pcrel;
- type = rel->r_type;
- }
-
- slide = offset - start_offset;
-
- if (!(offset >= start_offset && offset < start_offset +
size))
- continue; /* not in our range */
-
- sym_name = get_reloc_name(rel, &sslide);
-
- if(usesym && symtab[isym].n_type & N_STAB)
- continue; /* don't handle STAB (debug sym) */
-
- if (sym_name && strstart(sym_name, "__op_jmp", &p)) {
- int n;
- n = strtol(p, NULL, 10);
- fprintf(outfile, " jmp_offsets[%d] = %d +
(gen_code_ptr - gen_code_buf);\n",
- n, slide);
- continue; /* Nothing more to do */
- }
-
- if(!sym_name) {
- fprintf(outfile, "/* #warning relocation not
handled in %s (value 0x%x, %s, offset 0x%x, length 0x%x, %s, type 0x%x) */\n",
- name, value, usesym ? "use sym" : "don't
use sym", offset, length, pcrel ? "pcrel":"", type);
- continue; /* dunno how to handle without
final_sym_name */
- }
-
- get_reloc_expr(final_sym_name, sizeof(final_sym_name),
- sym_name);
- switch(type) {
- case PPC_RELOC_BR24:
- if (!strstart(sym_name,"__op_gen_label",&p)) {
- fprintf(outfile, "{\n");
- fprintf(outfile, " uint32_t imm =
*(uint32_t *)(gen_code_ptr + %d) & 0x3fffffc;\n", slide);
- fprintf(outfile, " *(uint32_t
*)(gen_code_ptr + %d) = (*(uint32_t *)(gen_code_ptr + %d) & ~0x03fffffc) |
((imm + ((long)%s - (long)gen_code_ptr) + %d) & 0x03fffffc);\n",
- slide, slide, name, sslide);
- fprintf(outfile, "}\n");
- } else {
- fprintf(outfile, " *(uint32_t
*)(gen_code_ptr + %d) = (*(uint32_t *)(gen_code_ptr + %d) & ~0x03fffffc) |
(((long)%s - (long)gen_code_ptr - %d) & 0x03fffffc);\n",
- slide, slide, final_sym_name, slide);
- }
- break;
- case PPC_RELOC_HI16:
- fprintf(outfile, " *(uint16_t *)(gen_code_ptr +
%d + 2) = (%s + %d) >> 16;\n",
- slide, final_sym_name, sslide);
- break;
- case PPC_RELOC_LO16:
- fprintf(outfile, " *(uint16_t *)(gen_code_ptr +
%d + 2) = (%s + %d);\n",
- slide, final_sym_name, sslide);
- break;
- case PPC_RELOC_HA16:
- fprintf(outfile, " *(uint16_t *)(gen_code_ptr +
%d + 2) = (%s + %d + 0x8000) >> 16;\n",
- slide, final_sym_name, sslide);
- break;
- default:
- error("unsupported powerpc relocation (%d)", type);
- }
- }
-#else
-#error unsupport object format
-#endif
- }
-#elif defined(HOST_S390)
- {
- char relname[256];
- int type;
- int addend;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = strtab +
symtab[ELFW(R_SYM)(rel->r_info)].st_name;
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
- switch(type) {
- case R_390_32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_390_16:
- fprintf(outfile, " *(uint16_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_390_8:
- fprintf(outfile, " *(uint8_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_390_PC32DBL:
- if
(ELF32_ST_TYPE(symtab[ELFW(R_SYM)(rel->r_info)].st_info) == STT_SECTION) {
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d)
+= "
- "((long)&%s - (long)gen_code_ptr) >>
1;\n",
- reloc_offset, name);
- }
- else
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d)
= "
- "(%s + %d - ((uint32_t)gen_code_ptr +
%d)) >> 1;\n",
- reloc_offset, relname, addend,
reloc_offset);
- break;
- default:
- error("unsupported s390 relocation (%d)", type);
- }
- }
- }
- }
-#elif defined(HOST_ALPHA)
- {
- for (i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset && rel->r_offset <
start_offset + copy_size) {
- int type;
- long reloc_offset;
-
- type = ELF64_R_TYPE(rel->r_info);
- sym_name = strtab +
symtab[ELF64_R_SYM(rel->r_info)].st_name;
- reloc_offset = rel->r_offset - start_offset;
- switch (type) {
- case R_ALPHA_GPDISP:
- /* The gp is just 32 bit, and never changes, so
it's easiest to emit it
- as an immediate instead of constructing it from
the pv or ra. */
- fprintf(outfile, " immediate_ldah(gen_code_ptr +
%ld, gp);\n",
- reloc_offset);
- fprintf(outfile, " immediate_lda(gen_code_ptr +
%ld, gp);\n",
- reloc_offset + (int)rel->r_addend);
- break;
- case R_ALPHA_LITUSE:
- /* jsr to literal hint. Could be used to optimize
to bsr. Ignore for
- now, since some called functions (libc) need pv
to be set up. */
- break;
- case R_ALPHA_HINT:
- /* Branch target prediction hint. Ignore for now.
Should be already
- correct for in-function jumps. */
- break;
- case R_ALPHA_LITERAL:
- /* Load a literal from the GOT relative to the gp.
Since there's only a
- single gp, nothing is to be done. */
- break;
- case R_ALPHA_GPRELHIGH:
- /* Handle fake relocations against __op_param
symbol. Need to emit the
- high part of the immediate value instead. Other
symbols need no
- special treatment. */
- if (strstart(sym_name, "__op_param", &p))
- fprintf(outfile, "
immediate_ldah(gen_code_ptr + %ld, param%s);\n",
- reloc_offset, p);
- break;
- case R_ALPHA_GPRELLOW:
- if (strstart(sym_name, "__op_param", &p))
- fprintf(outfile, "
immediate_lda(gen_code_ptr + %ld, param%s);\n",
- reloc_offset, p);
- break;
- case R_ALPHA_BRSGP:
- /* PC-relative jump. Tweak offset to skip the two
instructions that try to
- set up the gp from the pv. */
- fprintf(outfile, " fix_bsr(gen_code_ptr + %ld,
(uint8_t *) &%s - (gen_code_ptr + %ld + 4) + 8);\n",
- reloc_offset, sym_name, reloc_offset);
- break;
- default:
- error("unsupported Alpha relocation (%d)", type);
- }
- }
- }
- }
-#elif defined(HOST_IA64)
- {
- unsigned long sym_idx;
- long code_offset;
- char relname[256];
- int type;
- long addend;
-
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- sym_idx = ELF64_R_SYM(rel->r_info);
- if (rel->r_offset < start_offset
- || rel->r_offset >= start_offset + copy_size)
- continue;
- sym_name = (strtab + symtab[sym_idx].st_name);
- code_offset = rel->r_offset - start_offset;
- if (strstart(sym_name, "__op_jmp", &p)) {
- int n;
- n = strtol(p, NULL, 10);
- /* __op_jmp relocations are done at
- runtime to do translated block
- chaining: the offset of the instruction
- needs to be stored */
- fprintf(outfile, " jmp_offsets[%d] ="
- "%ld + (gen_code_ptr - gen_code_buf);\n",
- n, code_offset);
- continue;
- }
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF64_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- switch(type) {
- case R_IA64_IMM64:
- fprintf(outfile,
- " ia64_imm64(gen_code_ptr + %ld, "
- "%s + %ld);\n",
- code_offset, relname, addend);
- break;
- case R_IA64_LTOFF22X:
- case R_IA64_LTOFF22:
- fprintf(outfile, " IA64_LTOFF(gen_code_ptr + %ld,"
- " %s + %ld, %d);\n",
- code_offset, relname, addend,
- (type == R_IA64_LTOFF22X));
- break;
- case R_IA64_LDXMOV:
- fprintf(outfile,
- " ia64_ldxmov(gen_code_ptr + %ld,"
- " %s + %ld);\n", code_offset, relname,
addend);
- break;
-
- case R_IA64_PCREL21B:
- if (strstart(sym_name, "__op_gen_label", NULL)) {
- fprintf(outfile,
- " ia64_imm21b(gen_code_ptr + %ld,"
- " (long) (%s + %ld -\n\t\t"
- "((long) gen_code_ptr + %ld)) >> 4);\n",
- code_offset, relname, addend,
- code_offset & ~0xfUL);
- } else {
- fprintf(outfile,
- " IA64_PLT(gen_code_ptr + %ld, "
- "%d);\t/* %s + %ld */\n",
- code_offset,
- get_plt_index(sym_name, addend),
- sym_name, addend);
- }
- break;
- default:
- error("unsupported ia64 relocation (0x%x)",
- type);
- }
- }
- fprintf(outfile, " ia64_nop_b(gen_code_ptr + %d);\n",
- copy_size - 16 + 2);
- }
-#elif defined(HOST_SPARC)
- {
- char relname[256];
- int type;
- int addend;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = strtab +
symtab[ELF32_R_SYM(rel->r_info)].st_name;
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
- switch(type) {
- case R_SPARC_32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_SPARC_HI22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffff) "
- " | (((%s + %d) >> 10) & 0x3fffff);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
- case R_SPARC_LO10:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3ff) "
- " | ((%s + %d) & 0x3ff);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
- case R_SPARC_WDISP30:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffffff) "
- " | ((((%s + %d) - (long)(gen_code_ptr +
%d))>>2) "
- " & 0x3fffffff);\n",
- reloc_offset, reloc_offset, relname, addend,
- reloc_offset);
- break;
- case R_SPARC_WDISP22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffff) "
- " | ((((%s + %d) - (long)(gen_code_ptr +
%d))>>2) "
- " & 0x3fffff);\n",
- rel->r_offset - start_offset,
- rel->r_offset - start_offset,
- relname, addend,
- rel->r_offset - start_offset);
- break;
- default:
- error("unsupported sparc relocation (%d)", type);
- }
- }
- }
- }
-#elif defined(HOST_SPARC64)
- {
- char relname[256];
- int type;
- int addend;
- int reloc_offset;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = strtab +
symtab[ELF64_R_SYM(rel->r_info)].st_name;
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
- switch(type) {
- case R_SPARC_32:
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr +
%d) = %s + %d;\n",
- reloc_offset, relname, addend);
- break;
- case R_SPARC_HI22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffff) "
- " | (((%s + %d) >> 10) & 0x3fffff);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
- case R_SPARC_LO10:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3ff) "
- " | ((%s + %d) & 0x3ff);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
- case R_SPARC_OLO10:
- addend += ELF64_R_TYPE_DATA (rel->r_info);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3ff) "
- " | ((%s + %d) & 0x3ff);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
- case R_SPARC_WDISP30:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffffff) "
- " | ((((%s + %d) - (long)(gen_code_ptr +
%d))>>2) "
- " & 0x3fffffff);\n",
- reloc_offset, reloc_offset, relname, addend,
- reloc_offset);
- break;
- case R_SPARC_WDISP22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x3fffff) "
- " | ((((%s + %d) - (long)(gen_code_ptr +
%d))>>2) "
- " & 0x3fffff);\n",
- reloc_offset, reloc_offset, relname,
addend,
- reloc_offset);
- break;
- case R_SPARC_HH22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x00000000) "
- " | (((%s + %d) >> 42) & 0x00000000);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
-
- case R_SPARC_LM22:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x00000000) "
- " | (((%s + %d) >> 10) & 0x00000000);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
-
- case R_SPARC_HM10:
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + %d) = "
- "((*(uint32_t *)(gen_code_ptr + %d)) "
- " & ~0x00000000) "
- " | ((((%s + %d) >> 32 & 0x3ff)) &
0x00000000);\n",
- reloc_offset, reloc_offset, relname,
addend);
- break;
-
- default:
- error("unsupported sparc64 relocation (%d) for
symbol %s", type, relname);
- }
- }
- }
- }
-#elif defined(HOST_M68K)
- {
- char relname[256];
- int type;
- int addend;
- int reloc_offset;
- Elf32_Sym *sym;
- for(i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym = &(symtab[ELFW(R_SYM)(rel->r_info)]);
- sym_name = strtab +
symtab[ELFW(R_SYM)(rel->r_info)].st_name;
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = get32((uint32_t *)(text + rel->r_offset)) +
rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
- switch(type) {
- case R_68K_32:
- fprintf(outfile, " /* R_68K_32 RELOC, offset %x
*/\n", rel->r_offset) ;
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d)
= %s + %#x;\n",
- reloc_offset, relname, addend );
- break;
- case R_68K_PC32:
- fprintf(outfile, " /* R_68K_PC32 RELOC, offset %x
*/\n", rel->r_offset);
- fprintf(outfile, " *(uint32_t *)(gen_code_ptr + %d)
= %s - (long)(gen_code_ptr + %#x) + %#x;\n",
- reloc_offset, relname, reloc_offset,
/*sym->st_value+*/ addend);
- break;
- default:
- error("unsupported m68k relocation (%d)", type);
- }
- }
- }
- }
-#elif defined(HOST_HPPA)
- {
- char relname[256];
- int type, is_label;
- int addend;
- int reloc_offset;
- for (i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset &&
- rel->r_offset < start_offset + copy_size) {
- sym_name = get_rel_sym_name(rel);
- sym_name = strtab +
symtab[ELF32_R_SYM(rel->r_info)].st_name;
- is_label = get_reloc_expr(relname, sizeof(relname),
sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = rel->r_addend;
- reloc_offset = rel->r_offset - start_offset;
-
- if (is_label) {
- switch (type) {
- case R_PARISC_PCREL17F:
- fprintf(outfile,
-" tcg_out_reloc(s, gen_code_ptr + %d, %d, %s, %d);\n",
- reloc_offset, type, relname, addend);
- break;
- default:
- error("unsupported hppa label relocation (%d)",
type);
- }
- } else {
- switch (type) {
- case R_PARISC_DIR21L:
- fprintf(outfile,
-" hppa_patch21l((uint32_t *)(gen_code_ptr + %d), %s, %d);\n",
- reloc_offset, relname, addend);
- break;
- case R_PARISC_DIR14R:
- fprintf(outfile,
-" hppa_patch14r((uint32_t *)(gen_code_ptr + %d), %s, %d);\n",
- reloc_offset, relname, addend);
- break;
- case R_PARISC_PCREL17F:
- if (strstart(sym_name, "__op_gen_label", NULL)) {
- fprintf(outfile,
-" hppa_patch17f((uint32_t *)(gen_code_ptr + %d), %s, %d);\n",
- reloc_offset, relname, addend);
- } else {
- fprintf(outfile,
-" HPPA_RECORD_BRANCH(hppa_stubs, (uint32_t *)(gen_code_ptr + %d), %s);\n",
- reloc_offset, relname);
- }
- break;
- case R_PARISC_DPREL21L:
- if (strstart(sym_name, "__op_param", &p))
- fprintf(outfile,
-" hppa_load_imm21l((uint32_t *)(gen_code_ptr + %d), param%s, %d);\n",
- reloc_offset, p, addend);
- else
- fprintf(outfile,
-" hppa_patch21l_dprel((uint32_t *)(gen_code_ptr + %d), %s, %d);\n",
- reloc_offset, relname, addend);
- break;
- case R_PARISC_DPREL14R:
- if (strstart(sym_name, "__op_param", &p))
- fprintf(outfile,
-" hppa_load_imm14r((uint32_t *)(gen_code_ptr + %d), param%s, %d);\n",
- reloc_offset, p, addend);
- else
- fprintf(outfile,
-" hppa_patch14r_dprel((uint32_t *)(gen_code_ptr + %d), %s, %d);\n",
- reloc_offset, relname, addend);
- break;
- default:
- error("unsupported hppa relocation (%d)", type);
- }
- }
- }
- }
- }
-#elif defined(HOST_MIPS) || defined(HOST_MIPS64)
- {
- for (i = 0, rel = relocs; i < nb_relocs; i++, rel++) {
- if (rel->r_offset >= start_offset && rel->r_offset <
start_offset + copy_size) {
- char relname[256];
- int type;
- int addend;
- int reloc_offset;
-
- sym_name = strtab +
symtab[ELF32_R_SYM(rel->r_info)].st_name;
- /* the compiler leave some unnecessary references to
the code */
- if (sym_name[0] == '\0')
- continue;
- get_reloc_expr(relname, sizeof(relname), sym_name);
- type = ELF32_R_TYPE(rel->r_info);
- addend = get32((uint32_t *)(text + rel->r_offset));
- reloc_offset = rel->r_offset - start_offset;
- switch (type) {
- case R_MIPS_26:
- fprintf(outfile, " /* R_MIPS_26 RELOC, offset
0x%x, name %s */\n",
- rel->r_offset, sym_name);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + 0x%x) = "
- "(0x%x & ~0x3fffff) "
- "| ((0x%x + ((%s - (*(uint32_t
*)(gen_code_ptr + 0x%x))) >> 2)) "
- " & 0x3fffff);\n",
- reloc_offset, addend, addend, relname,
reloc_offset);
- break;
- case R_MIPS_HI16:
- fprintf(outfile, " /* R_MIPS_HI16 RELOC, offset
0x%x, name %s */\n",
- rel->r_offset, sym_name);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + 0x%x) = "
- "((*(uint32_t *)(gen_code_ptr + 0x%x)) "
- " & ~0xffff) "
- " | (((%s - 0x8000) >> 16) & 0xffff);\n",
- reloc_offset, reloc_offset, relname);
- break;
- case R_MIPS_LO16:
- fprintf(outfile, " /* R_MIPS_LO16 RELOC, offset
0x%x, name %s */\n",
- rel->r_offset, sym_name);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + 0x%x) = "
- "((*(uint32_t *)(gen_code_ptr + 0x%x)) "
- " & ~0xffff) "
- " | (%s & 0xffff);\n",
- reloc_offset, reloc_offset, relname);
- break;
- case R_MIPS_PC16:
- fprintf(outfile, " /* R_MIPS_PC16 RELOC, offset
0x%x, name %s */\n",
- rel->r_offset, sym_name);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + 0x%x) = "
- "(0x%x & ~0xffff) "
- "| ((0x%x + ((%s - (*(uint32_t
*)(gen_code_ptr + 0x%x))) >> 2)) "
- " & 0xffff);\n",
- reloc_offset, addend, addend, relname,
reloc_offset);
- break;
- case R_MIPS_GOT16:
- case R_MIPS_CALL16:
- fprintf(outfile, " /* R_MIPS_GOT16 RELOC,
offset 0x%x, name %s */\n",
- rel->r_offset, sym_name);
- fprintf(outfile,
- " *(uint32_t *)(gen_code_ptr + 0x%x) = "
- "((*(uint32_t *)(gen_code_ptr + 0x%x)) "
- " & ~0xffff) "
- " | (((%s - 0x8000) >> 16) & 0xffff);\n",
- reloc_offset, reloc_offset, relname);
- break;
- default:
- error("unsupported MIPS relocation (%d)", type);
- }
- }
- }
- }
-#elif defined(HOST_ARM)
- error("dyngen targets not supported on ARM");
-#elif defined(HOST_PPC64)
- error("dyngen targets not supported on PPC64");
-#else
-#error unsupported CPU
-#endif
- fprintf(outfile, " gen_code_ptr += %d;\n", copy_size);
- fprintf(outfile, "}\n");
- fprintf(outfile, "break;\n\n");
- } else {
- fprintf(outfile, "static inline void gen_%s(", name);
- if (nb_args == 0) {
- fprintf(outfile, "void");
- } else {
- for(i = 0; i < nb_args; i++) {
- if (i != 0)
- fprintf(outfile, ", ");
- fprintf(outfile, "long param%d", i + 1);
- }
- }
- fprintf(outfile, ")\n");
- fprintf(outfile, "{\n");
- for(i = 0; i < nb_args; i++) {
- fprintf(outfile, " *gen_opparam_ptr++ = param%d;\n", i + 1);
- }
- fprintf(outfile, " *gen_opc_ptr++ = INDEX_%s;\n", name);
- fprintf(outfile, "}\n\n");
- }
-}
-
-static int gen_file(FILE *outfile, int out_type)
-{
- int i;
- EXE_SYM *sym;
-
- if (out_type == OUT_INDEX_OP) {
- for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- const char *name;
- name = get_sym_name(sym);
- if (strstart(name, OP_PREFIX, NULL)) {
- gen_code(name, sym->st_value, sym->st_size, outfile, 2);
- }
- }
- } else if (out_type == OUT_GEN_OP) {
- /* generate gen_xxx functions */
- for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- const char *name;
- name = get_sym_name(sym);
- if (strstart(name, OP_PREFIX, NULL)) {
-#if defined(CONFIG_FORMAT_ELF) || defined(CONFIG_FORMAT_COFF)
- if (sym->st_shndx != text_shndx)
- error("invalid section for opcode (0x%x)", sym->st_shndx);
-#endif
- gen_code(name, sym->st_value, sym->st_size, outfile, 0);
- }
- }
-
- } else {
- /* generate big code generation switch */
-
-#ifdef HOST_ARM
- error("dyngen targets not supported on ARM");
-#endif
-#ifdef HOST_IA64
-#error broken
- {
- long addend, not_first = 0;
- unsigned long sym_idx;
- int index, max_index;
- const char *sym_name;
- EXE_RELOC *rel;
-
- max_index = -1;
- for (i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- sym_idx = ELF64_R_SYM(rel->r_info);
- sym_name = (strtab + symtab[sym_idx].st_name);
- if (strstart(sym_name, "__op_gen_label", NULL))
- continue;
- if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
- continue;
-
- addend = rel->r_addend;
- index = get_plt_index(sym_name, addend);
- if (index <= max_index)
- continue;
- max_index = index;
- fprintf(outfile, " extern void %s(void);\n", sym_name);
- }
-
- fprintf(outfile,
- " struct ia64_fixup *plt_fixes = NULL, "
- "*ltoff_fixes = NULL;\n"
- " static long plt_target[] = {\n\t");
-
- max_index = -1;
- for (i = 0, rel = relocs;i < nb_relocs; i++, rel++) {
- sym_idx = ELF64_R_SYM(rel->r_info);
- sym_name = (strtab + symtab[sym_idx].st_name);
- if (strstart(sym_name, "__op_gen_label", NULL))
- continue;
- if (ELF64_R_TYPE(rel->r_info) != R_IA64_PCREL21B)
- continue;
-
- addend = rel->r_addend;
- index = get_plt_index(sym_name, addend);
- if (index <= max_index)
- continue;
- max_index = index;
-
- if (not_first)
- fprintf(outfile, ",\n\t");
- not_first = 1;
- if (addend)
- fprintf(outfile, "(long) &%s + %ld", sym_name, addend);
- else
- fprintf(outfile, "(long) &%s", sym_name);
- }
- fprintf(outfile, "\n };\n"
- " unsigned int plt_offset[%u] = { 0 };\n", max_index + 1);
- }
-#endif
-
- for(i = 0, sym = symtab; i < nb_syms; i++, sym++) {
- const char *name;
- name = get_sym_name(sym);
- if (strstart(name, OP_PREFIX, NULL)) {
-#if 0
- printf("%4d: %s pos=0x%08x len=%d\n",
- i, name, sym->st_value, sym->st_size);
-#endif
-#if defined(CONFIG_FORMAT_ELF) || defined(CONFIG_FORMAT_COFF)
- if (sym->st_shndx != text_shndx)
- error("invalid section for opcode (0x%x)", sym->st_shndx);
-#endif
- gen_code(name, sym->st_value, sym->st_size, outfile, 1);
- }
- }
- }
-
- return 0;
-}
-
-static void usage(void)
-{
- printf("dyngen (c) 2003 Fabrice Bellard\n"
- "usage: dyngen [-o outfile] [-c] objfile\n"
- "Generate a dynamic code generator from an object file\n"
- "-c output enum of operations\n"
- "-g output gen_op_xx() functions\n"
- );
- exit(1);
-}
-
-int main(int argc, char **argv)
-{
- int c, out_type;
- const char *filename, *outfilename;
- FILE *outfile;
-
- outfilename = "out.c";
- out_type = OUT_CODE;
- for(;;) {
- c = getopt(argc, argv, "ho:cg");
- if (c == -1)
- break;
- switch(c) {
- case 'h':
- usage();
- break;
- case 'o':
- outfilename = optarg;
- break;
- case 'c':
- out_type = OUT_INDEX_OP;
- break;
- case 'g':
- out_type = OUT_GEN_OP;
- break;
- }
- }
- if (optind >= argc)
- usage();
- filename = argv[optind];
- outfile = fopen(outfilename, "w");
- if (!outfile)
- error("could not open '%s'", outfilename);
-
- load_object(filename);
- gen_file(outfile, out_type);
- fclose(outfile);
- return 0;
-}
Modified: trunk/tcg/README
===================================================================
--- trunk/tcg/README 2008-12-07 14:18:02 UTC (rev 5913)
+++ trunk/tcg/README 2008-12-07 15:21:23 UTC (rev 5914)
@@ -60,9 +60,8 @@
- Basic blocks end after branches (e.g. brcond_i32 instruction),
goto_tb and exit_tb instructions.
-- Basic blocks end before legacy dyngen operations.
-- Basic blocks start after the end of a previous basic block, at a
- set_label instruction or after a legacy dyngen operation.
+- Basic blocks start after the end of a previous basic block, or at a
+ set_label instruction.
After the end of a basic block, the content of temporaries is
destroyed, but local temporaries and globals are preserved.
@@ -423,27 +422,15 @@
target, functions must be able to return 2 values in registers for
64 bit return type.
-5) Migration from dyngen to TCG
+5) Recommended coding rules for best performance
-TCG is backward compatible with QEMU "dyngen" operations. It means
-that TCG instructions can be freely mixed with dyngen operations. It
-is expected that QEMU targets will be progressively fully converted to
-TCG. Once a target is fully converted to TCG, it will be possible
-to apply more optimizations because more registers will be free for
-the generated code.
-
-The exception model is the same as the dyngen one.
-
-6) Recommended coding rules for best performance
-
- Use globals to represent the parts of the QEMU CPU state which are
often modified, e.g. the integer registers and the condition
codes. TCG will be able to use host registers to store them.
- Avoid globals stored in fixed registers. They must be used only to
store the pointer to the CPU state and possibly to store a pointer
- to a register window. The other uses are to ensure backward
- compatibility with dyngen during the porting a new target to TCG.
+ to a register window.
- Use temporaries. Use local temporaries only when really needed,
e.g. when you need to use a value after a jump. Local temporaries
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- [Qemu-devel] [5914] Remove a few dyngen and dyngen related code,
Aurelien Jarno <=