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@@ -1,232 +0,0 @@
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-/*
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- * PicoDrive
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- * (C) notaz, 2009,2010
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- *
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- * This work is licensed under the terms of MAME license.
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- * See COPYING file in the top-level directory.
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- */
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-#include <stdio.h>
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-#include <stdlib.h>
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-#include <string.h>
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-#include <stdarg.h>
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-#include <bfd.h>
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-#include <dis-asm.h>
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-
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-#include "host_dasm.h"
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-
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-extern char **g_argv;
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-
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-static struct disassemble_info di;
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-
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-#ifdef __arm__
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-#define print_insn_func print_insn_little_arm
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-#define BFD_ARCH bfd_arch_arm
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-#define BFD_MACH bfd_mach_arm_4T
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-#else
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-#define print_insn_func print_insn_i386_intel
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-#define BFD_ARCH bfd_arch_i386
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-#define BFD_MACH bfd_mach_i386_i386_intel_syntax
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-#endif
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-
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-/* symbols */
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-static asymbol **symbols;
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-static long symcount, symstorage;
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-static int init_done;
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-
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-/* Filter out (in place) symbols that are useless for disassembly.
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- COUNT is the number of elements in SYMBOLS.
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- Return the number of useful symbols. */
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-static long
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-remove_useless_symbols (asymbol **symbols, long count)
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-{
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- asymbol **in_ptr = symbols, **out_ptr = symbols;
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-
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- while (--count >= 0)
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- {
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- asymbol *sym = *in_ptr++;
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-
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- if (sym->name == NULL || sym->name[0] == '\0' || sym->name[0] == '$')
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- continue;
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- if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
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- continue;
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- if (bfd_is_und_section (sym->section)
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- || bfd_is_com_section (sym->section))
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- continue;
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- if (sym->value + sym->section->vma == 0)
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- continue;
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-/*
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- printf("sym: %08lx %04x %08x v %08x \"%s\"\n",
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- (unsigned int)sym->value, (unsigned int)sym->flags, (unsigned int)sym->udata.i,
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- (unsigned int)sym->section->vma, sym->name);
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-*/
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- *out_ptr++ = sym;
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- }
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-
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- return out_ptr - symbols;
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-}
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-
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-static void slurp_symtab(const char *filename)
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-{
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- bfd *abfd;
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-
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- symcount = 0;
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-
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- abfd = bfd_openr(filename, NULL);
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- if (abfd == NULL) {
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- fprintf(stderr, "failed to open: %s\n", filename);
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- goto no_symbols;
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- }
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-
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- if (!bfd_check_format(abfd, bfd_object))
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- goto no_symbols;
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-
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- if (!(bfd_get_file_flags(abfd) & HAS_SYMS))
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- goto no_symbols;
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-
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- symstorage = bfd_get_symtab_upper_bound(abfd);
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- if (symstorage <= 0)
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- goto no_symbols;
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-
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- symbols = malloc(symstorage);
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- if (symbols == NULL)
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- goto no_symbols;
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-
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- symcount = bfd_canonicalize_symtab(abfd, symbols);
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- if (symcount < 0)
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- goto no_symbols;
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-
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- symcount = remove_useless_symbols(symbols, symcount);
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-// bfd_close(abfd);
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- return;
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-
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-no_symbols:
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- fprintf(stderr, "no symbols in %s\n", bfd_get_filename(abfd));
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- if (symbols != NULL)
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- free(symbols);
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- symbols = NULL;
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- if (abfd != NULL)
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- bfd_close(abfd);
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-}
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-
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-static const char *lookup_name(bfd_vma addr)
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-{
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- asymbol **sptr = symbols;
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- int i;
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-
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- for (i = 0; i < symcount; i++) {
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- asymbol *sym = *sptr++;
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-
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- if (addr == sym->value + sym->section->vma)
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- return sym->name;
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- }
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-
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- return NULL;
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-}
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-
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-/* Like target_read_memory, but slightly different parameters. */
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-static int
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-dis_asm_read_memory(bfd_vma memaddr, bfd_byte *myaddr, unsigned int len,
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- struct disassemble_info *info)
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-{
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- memcpy(myaddr, (void *)(int)memaddr, len);
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- return 0;
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-}
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-
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-static void
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-dis_asm_memory_error(int status, bfd_vma memaddr,
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- struct disassemble_info *info)
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-{
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- fprintf(stderr, "memory_error %p\n", (void *)(int)memaddr);
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-}
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-
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-static void
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-dis_asm_print_address(bfd_vma addr, struct disassemble_info *info)
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-{
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- const char *name;
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-
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- printf("%08x", (int)addr);
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-
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- name = lookup_name(addr);
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- if (name != NULL)
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- printf(" <%s>", name);
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-}
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-
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-static int insn_printf(void *f, const char *format, ...)
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-{
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- va_list args;
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- size_t n;
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-
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- va_start(args, format);
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- n = vprintf(format, args);
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- va_end(args);
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-
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- return n;
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-}
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-
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-static void host_dasm_init(void)
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-{
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- bfd_init();
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- slurp_symtab(g_argv[0]);
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-
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- init_disassemble_info(&di, NULL, insn_printf);
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- di.flavour = bfd_target_unknown_flavour;
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- di.memory_error_func = dis_asm_memory_error;
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- di.print_address_func = dis_asm_print_address;
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-// di.symbol_at_address_func = dis_asm_symbol_at_address;
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- di.read_memory_func = dis_asm_read_memory;
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- di.arch = BFD_ARCH;
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- di.mach = BFD_MACH;
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- di.endian = BFD_ENDIAN_LITTLE;
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- disassemble_init_for_target(&di);
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- init_done = 1;
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-}
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-
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-void host_dasm(void *addr, int len)
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-{
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- bfd_vma vma_end, vma = (bfd_vma)(long)addr;
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- const char *name;
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-
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- if (!init_done)
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- host_dasm_init();
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-
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- vma_end = vma + len;
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- while (vma < vma_end) {
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- name = lookup_name(vma);
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- if (name != NULL)
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- printf("%s:\n", name);
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-
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- printf(" %08lx ", (long)vma);
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- vma += print_insn_func(vma, &di);
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- printf("\n");
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- }
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-}
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-
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-void host_dasm_new_symbol_(void *addr, const char *name)
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-{
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- bfd_vma vma = (bfd_vma)(long)addr;
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- asymbol *sym, **tmp;
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-
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- if (!init_done)
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- host_dasm_init();
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- if (symbols == NULL)
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- return;
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- if (symstorage <= symcount * sizeof(symbols[0])) {
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- tmp = realloc(symbols, symstorage * 2);
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- if (tmp == NULL)
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- return;
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- symstorage *= 2;
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- symbols = tmp;
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- }
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-
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- symbols[symcount] = calloc(sizeof(*symbols[0]), 1);
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- if (symbols[symcount] == NULL)
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- return;
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-
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- // a HACK (should use correct section), but ohwell
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- sym = symbols[symcount];
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- sym->section = symbols[0]->section;
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- sym->value = vma - sym->section->vma;
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- sym->name = name;
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- symcount++;
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-}
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-
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