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CRIS Linux userland emulation, part 2. By Edgar E. Iglesias. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3367 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-10-08 13:36:46 +00:00
parent e69b406510
commit 48733d195b
4 changed files with 104 additions and 5 deletions
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20
linux-user/elfload.c
View File

@ -334,6 +334,26 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
#endif
#ifdef TARGET_CRIS
#define ELF_START_MMAP 0x80000000
#define elf_check_arch(x) ( (x) == EM_CRIS )
#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_CRIS
static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
{
regs->erp = infop->entry;
}
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 8192
#endif
#ifdef TARGET_M68K
#define ELF_START_MMAP 0x80000000

75
linux-user/main.c
View File

@ -1601,6 +1601,61 @@ void cpu_loop (CPUState *env)
}
#endif
#ifdef TARGET_CRIS
void cpu_loop (CPUState *env)
{
int trapnr, ret;
target_siginfo_t info;
while (1) {
trapnr = cpu_cris_exec (env);
switch (trapnr) {
case 0xaa:
{
info.si_signo = SIGSEGV;
info.si_errno = 0;
/* XXX: check env->error_code */
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->debug1;
queue_signal(info.si_signo, &info);
}
break;
case EXCP_BREAK:
ret = do_syscall(env,
env->regs[9],
env->regs[10],
env->regs[11],
env->regs[12],
env->regs[13],
env->pregs[7],
env->pregs[11]);
env->regs[10] = ret;
env->pc += 2;
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig (env, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(info.si_signo, &info);
}
}
break;
default:
printf ("Unhandled trap: 0x%x\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
exit (1);
}
process_pending_signals (env);
}
}
#endif
#ifdef TARGET_M68K
void cpu_loop(CPUM68KState *env)
@ -2195,6 +2250,26 @@ int main(int argc, char **argv)
env->pc = regs->pc;
env->unique = regs->unique;
}
#elif defined(TARGET_CRIS)
{
env->regs[0] = regs->r0;
env->regs[1] = regs->r1;
env->regs[2] = regs->r2;
env->regs[3] = regs->r3;
env->regs[4] = regs->r4;
env->regs[5] = regs->r5;
env->regs[6] = regs->r6;
env->regs[7] = regs->r7;
env->regs[8] = regs->r8;
env->regs[9] = regs->r9;
env->regs[10] = regs->r10;
env->regs[11] = regs->r11;
env->regs[12] = regs->r12;
env->regs[13] = regs->r13;
env->regs[14] = info->start_stack;
env->regs[15] = regs->acr;
env->pc = regs->erp;
}
#else
#error unsupported target CPU
#endif

8
linux-user/syscall.c
View File

@ -74,7 +74,7 @@
//#define DEBUG
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
|| defined(TARGET_M68K) || defined(TARGET_SH4)
|| defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS)
/* 16 bit uid wrappers emulation */
#define USE_UID16
#endif
@ -2286,6 +2286,10 @@ int do_fork(CPUState *env, unsigned int flags, target_ulong newsp)
for (i = 7; i < 30; i++)
new_env->ir[i] = 0;
}
#elif defined(TARGET_CRIS)
if (!newsp)
newsp = env->regs[14];
new_env->regs[14] = newsp;
#else
#error unsupported target CPU
#endif
@ -3502,7 +3506,7 @@ target_long do_syscall(void *cpu_env, int num, target_long arg1,
#endif
#ifdef TARGET_NR_mmap
case TARGET_NR_mmap:
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K)
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
{
target_ulong *v;
target_ulong v1, v2, v3, v4, v5, v6;

6
linux-user/syscall_defs.h
View File

@ -49,7 +49,7 @@
#define TARGET_IOC_TYPEBITS 8
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SH4) \
|| defined(TARGET_M68K) || defined(TARGET_ALPHA)
|| defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS)
#define TARGET_IOC_SIZEBITS 14
#define TARGET_IOC_DIRBITS 2
@ -289,7 +289,7 @@ struct target_sigaction;
int do_sigaction(int sig, const struct target_sigaction *act,
struct target_sigaction *oact);
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || defined(TARGET_M68K) || defined(TARGET_ALPHA)
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_MIPS) || defined (TARGET_SH4) || defined(TARGET_M68K) || defined(TARGET_ALPHA) || defined(TARGET_CRIS)
#if defined(TARGET_SPARC)
#define TARGET_SA_NOCLDSTOP 8u
@ -884,7 +884,7 @@ struct target_winsize {
#define TARGET_MAP_NONBLOCK 0x10000 /* do not block on IO */
#endif
#if defined(TARGET_I386) || defined(TARGET_ARM)
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_CRIS)
struct target_stat {
unsigned short st_dev;
unsigned short __pad1;