system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

Sparc64 user emulator fixes (Blue Swirl)

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2063 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-07-18 21:14:09 +00:00
parent 725cb90bf7
commit 5ef54116ea
3 changed files with 31 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
linux-user/elfload.c
View file

@ -135,11 +135,13 @@ enum
#define ELF_START_MMAP 0x80000000
#define elf_check_arch(x) ( (x) == EM_SPARC )
#define elf_check_arch(x) ( (x) == EM_SPARCV9 )
#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_SPARC
#define ELF_ARCH EM_SPARCV9
#define STACK_BIAS 2047
static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
{
@ -147,7 +149,7 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
regs->pc = infop->entry;
regs->npc = regs->pc + 4;
regs->y = 0;
regs->u_regs[14] = infop->start_stack - 16 * 4;
regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS;
}
#else

22
linux-user/main.c
View file

@ -473,11 +473,17 @@ static inline void save_window_offset(CPUSPARCState *env, int cwp1)
static void save_window(CPUSPARCState *env)
{
#ifndef TARGET_SPARC64
unsigned int new_wim;
new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
((1LL << NWINDOWS) - 1);
save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
env->wim = new_wim;
#else
save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
env->cansave++;
env->canrestore--;
#endif
}
static void restore_window(CPUSPARCState *env)
@ -500,6 +506,12 @@ static void restore_window(CPUSPARCState *env)
sp_ptr += sizeof(target_ulong);
}
env->wim = new_wim;
#ifdef TARGET_SPARC64
env->canrestore++;
if (env->cleanwin < NWINDOWS - 1)
env->cleanwin++;
env->cansave--;
#endif
}
static void flush_windows(CPUSPARCState *env)
@ -532,8 +544,12 @@ void cpu_loop (CPUSPARCState *env)
trapnr = cpu_sparc_exec (env);
switch (trapnr) {
#ifndef TARGET_SPARC64
case 0x88:
case 0x90:
#else
case 0x16d:
#endif
ret = do_syscall (env, env->gregs[1],
env->regwptr[0], env->regwptr[1],
env->regwptr[2], env->regwptr[3],
@ -574,6 +590,12 @@ void cpu_loop (CPUSPARCState *env)
}
break;
#else
case TT_SPILL: /* window overflow */
save_window(env);
break;
case TT_FILL: /* window underflow */
restore_window(env);
break;
// XXX
#endif
case EXCP_INTERRUPT:

4
target-sparc/translate.c
View file

@ -2731,6 +2731,10 @@ void cpu_reset(CPUSPARCState *env)
env->regwptr = env->regbase + (env->cwp * 16);
#if defined(CONFIG_USER_ONLY)
env->user_mode_only = 1;
#ifdef TARGET_SPARC64
env->cleanwin = NWINDOWS - 1;
env->cansave = NWINDOWS - 1;
#endif
#else
env->psrs = 1;
env->psrps = 1;