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authorDavid 'Digit' Turner <digit@google.com>2009-09-14 14:32:27 -0700
committerDavid 'Digit' Turner <digit@google.com>2009-09-14 14:32:27 -0700
commit5d8f37ad78fc66901af50c762029a501561f3b23 (patch)
tree206790f8f21000850a98c4f9590a79e779106278 /disas.c
parentcd059b15f2c7df69f4a087bd66900eb172e41d1c (diff)
downloadexternal_qemu-5d8f37ad78fc66901af50c762029a501561f3b23.zip
external_qemu-5d8f37ad78fc66901af50c762029a501561f3b23.tar.gz
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Merge upstream QEMU 10.0.50 into the Android source tree.
This change integrates many changes from the upstream QEMU sources. Its main purpose is to enable correct ARMv6 and ARMv7 support to the Android emulator. Due to the nature of the upstream code base, this unfortunately also required changes to many other parts of the source. Note that to ensure easier integrations in the future, some source files and directories that have heavy Android-specific customization have been renamed with an -android suffix. The original files are still there for easier integration tracking, but *never* compiled. For example: net.c net-android.c qemu-char.c qemu-char-android.c slirp/ slirp-android/ etc... Tested on linux-x86, darwin-x86 and windows host machines.
Diffstat (limited to 'disas.c')
-rw-r--r--disas.c88
1 files changed, 34 insertions, 54 deletions
diff --git a/disas.c b/disas.c
index a8bc8ad..af5a9ea 100644
--- a/disas.c
+++ b/disas.c
@@ -14,11 +14,8 @@ struct syminfo *syminfos = NULL;
/* Get LENGTH bytes from info's buffer, at target address memaddr.
Transfer them to myaddr. */
int
-buffer_read_memory (memaddr, myaddr, length, info)
- bfd_vma memaddr;
- bfd_byte *myaddr;
- int length;
- struct disassemble_info *info;
+buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
+ struct disassemble_info *info)
{
if (memaddr < info->buffer_vma
|| memaddr + length > info->buffer_vma + info->buffer_length)
@@ -36,20 +33,14 @@ target_read_memory (bfd_vma memaddr,
int length,
struct disassemble_info *info)
{
- int i;
- for(i = 0; i < length; i++) {
- myaddr[i] = ldub_code(memaddr + i);
- }
+ cpu_memory_rw_debug(cpu_single_env, memaddr, myaddr, length, 0);
return 0;
}
/* Print an error message. We can assume that this is in response to
an error return from buffer_read_memory. */
void
-perror_memory (status, memaddr, info)
- int status;
- bfd_vma memaddr;
- struct disassemble_info *info;
+perror_memory (int status, bfd_vma memaddr, struct disassemble_info *info)
{
if (status != EIO)
/* Can't happen. */
@@ -69,9 +60,7 @@ perror_memory (status, memaddr, info)
addresses). */
void
-generic_print_address (addr, info)
- bfd_vma addr;
- struct disassemble_info *info;
+generic_print_address (bfd_vma addr, struct disassemble_info *info)
{
(*info->fprintf_func) (info->stream, "0x%" PRIx64, addr);
}
@@ -79,9 +68,7 @@ generic_print_address (addr, info)
/* Just return the given address. */
int
-generic_symbol_at_address (addr, info)
- bfd_vma addr;
- struct disassemble_info * info;
+generic_symbol_at_address (bfd_vma addr, struct disassemble_info *info)
{
return 1;
}
@@ -208,13 +195,16 @@ void target_disas(FILE *out, target_ulong code, target_ulong size, int flags)
#elif defined(TARGET_CRIS)
disasm_info.mach = bfd_mach_cris_v32;
print_insn = print_insn_crisv32;
+#elif defined(TARGET_MICROBLAZE)
+ disasm_info.mach = bfd_arch_microblaze;
+ print_insn = print_insn_microblaze;
#else
fprintf(out, "0x" TARGET_FMT_lx
": Asm output not supported on this arch\n", code);
return;
#endif
- for (pc = code; pc < code + size; pc += count) {
+ for (pc = code; size > 0; pc += count, size -= count) {
fprintf(out, "0x" TARGET_FMT_lx ": ", pc);
count = print_insn(pc, &disasm_info);
#if 0
@@ -232,6 +222,13 @@ void target_disas(FILE *out, target_ulong code, target_ulong size, int flags)
fprintf(out, "\n");
if (count < 0)
break;
+ if (size < count) {
+ fprintf(out,
+ "Disassembler disagrees with translator over instruction "
+ "decoding\n"
+ "Please report this to qemu-devel@nongnu.org\n");
+ break;
+ }
}
}
@@ -260,7 +257,7 @@ void disas(FILE *out, void *code, unsigned long size)
#elif defined(__x86_64__)
disasm_info.mach = bfd_mach_x86_64;
print_insn = print_insn_i386;
-#elif defined(__powerpc__)
+#elif defined(_ARCH_PPC)
print_insn = print_insn_ppc;
#elif defined(__alpha__)
print_insn = print_insn_alpha;
@@ -286,7 +283,7 @@ void disas(FILE *out, void *code, unsigned long size)
(long) code);
return;
#endif
- for (pc = (unsigned long)code; pc < (unsigned long)code + size; pc += count) {
+ for (pc = (unsigned long)code; size > 0; pc += count, size -= count) {
fprintf(out, "0x%08lx: ", pc);
#ifdef __arm__
/* since data is included in the code, it is better to
@@ -303,39 +300,22 @@ void disas(FILE *out, void *code, unsigned long size)
/* Look up symbol for debugging purpose. Returns "" if unknown. */
const char *lookup_symbol(target_ulong orig_addr)
{
- unsigned int i;
- /* Hack, because we know this is x86. */
- Elf32_Sym *sym;
+ const char *symbol = "";
struct syminfo *s;
- target_ulong addr;
for (s = syminfos; s; s = s->next) {
- sym = s->disas_symtab;
- for (i = 0; i < s->disas_num_syms; i++) {
- if (sym[i].st_shndx == SHN_UNDEF
- || sym[i].st_shndx >= SHN_LORESERVE)
- continue;
-
- if (ELF_ST_TYPE(sym[i].st_info) != STT_FUNC)
- continue;
-
- addr = sym[i].st_value;
-#if defined(TARGET_ARM) || defined (TARGET_MIPS)
- /* The bottom address bit marks a Thumb or MIPS16 symbol. */
- addr &= ~(target_ulong)1;
-#endif
- if (orig_addr >= addr
- && orig_addr < addr + sym[i].st_size)
- return s->disas_strtab + sym[i].st_name;
- }
+ symbol = s->lookup_symbol(s, orig_addr);
+ if (symbol[0] != '\0') {
+ break;
+ }
}
- return "";
+
+ return symbol;
}
#if !defined(CONFIG_USER_ONLY)
-void term_vprintf(const char *fmt, va_list ap);
-void term_printf(const char *fmt, ...);
+#include "monitor.h"
static int monitor_disas_is_physical;
static CPUState *monitor_disas_env;
@@ -356,19 +336,19 @@ static int monitor_fprintf(FILE *stream, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
- term_vprintf(fmt, ap);
+ monitor_vprintf((Monitor *)stream, fmt, ap);
va_end(ap);
return 0;
}
-void monitor_disas(CPUState *env,
+void monitor_disas(Monitor *mon, CPUState *env,
target_ulong pc, int nb_insn, int is_physical, int flags)
{
int count, i;
struct disassemble_info disasm_info;
int (*print_insn)(bfd_vma pc, disassemble_info *info);
- INIT_DISASSEMBLE_INFO(disasm_info, NULL, monitor_fprintf);
+ INIT_DISASSEMBLE_INFO(disasm_info, (FILE *)mon, monitor_fprintf);
monitor_disas_env = env;
monitor_disas_is_physical = is_physical;
@@ -414,15 +394,15 @@ void monitor_disas(CPUState *env,
print_insn = print_insn_little_mips;
#endif
#else
- term_printf("0x" TARGET_FMT_lx
- ": Asm output not supported on this arch\n", pc);
+ monitor_printf(mon, "0x" TARGET_FMT_lx
+ ": Asm output not supported on this arch\n", pc);
return;
#endif
for(i = 0; i < nb_insn; i++) {
- term_printf("0x" TARGET_FMT_lx ": ", pc);
+ monitor_printf(mon, "0x" TARGET_FMT_lx ": ", pc);
count = print_insn(pc, &disasm_info);
- term_printf("\n");
+ monitor_printf(mon, "\n");
if (count < 0)
break;
pc += count;