merge of '603b2d0c7e4ad80e5779bd3bbdb822331cc0ea2b'

     and '6ab53da82d157971966f5a17d0c29d54df22cac9'

1 files changed, 294 insertions, 0 deletions

diff --git a/packages/qemu/files/qemu-0.9.0-nptl-update.patch b/packages/qemu/files/qemu-0.9.0-nptl-update.patch
new file mode 100644
index 0000000000..869acba2cf
--- /dev/null
+++ b/packages/qemu/files/qemu-0.9.0-nptl-update.patch
@@ -0,0 +1,294 @@
+Index: qemu/linux-user/main.c
+===================================================================
+--- qemu.orig/linux-user/main.c	2007-06-29 10:47:58.000000000 +0000
++++ qemu/linux-user/main.c	2007-06-29 10:47:58.000000000 +0000
+@@ -156,7 +156,7 @@
+     p[1] = tswapl(e2);
+ }
+ 
+-uint64_t gdt_table[6];
++uint64_t gdt_table[9];
+ uint64_t idt_table[256];
+ 
+ /* only dpl matters as we do only user space emulation */
+@@ -1768,7 +1768,11 @@
+     int optind;
+     const char *r;
+     int gdbstub_port = 0;
+-    
++    char *assume_kernel = getenv("QEMU_ASSUME_KERNEL");
++
++    if (assume_kernel)
++       setenv("LD_ASSUME_KERNEL", assume_kernel, 1);
++
+     if (argc <= 1)
+         usage();
+ 
+Index: qemu/linux-user/syscall.c
+===================================================================
+--- qemu.orig/linux-user/syscall.c	2007-06-29 10:47:58.000000000 +0000
++++ qemu/linux-user/syscall.c	2007-06-29 10:53:44.000000000 +0000
+@@ -60,6 +60,7 @@
+ #define tchars host_tchars /* same as target */
+ #define ltchars host_ltchars /* same as target */
+ 
++#include <linux/futex.h>
+ #include <linux/termios.h>
+ #include <linux/unistd.h>
+ #include <linux/utsname.h>
+@@ -2122,6 +2123,80 @@
+     return ret;
+ }
+ 
++int do_set_thread_area(CPUX86State *env, target_ulong ptr)
++{
++    uint64_t *gdt_table = g2h(env->gdt.base);
++    struct target_modify_ldt_ldt_s ldt_info;
++    struct target_modify_ldt_ldt_s *target_ldt_info;
++    int seg_32bit, contents, read_exec_only, limit_in_pages;
++    int seg_not_present, useable;
++    uint32_t *lp, entry_1, entry_2;
++    int i;
++
++    lock_user_struct(target_ldt_info, ptr, 1);
++    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
++    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
++    ldt_info.limit = tswap32(target_ldt_info->limit);
++    ldt_info.flags = tswap32(target_ldt_info->flags);
++    if (ldt_info.entry_number == -1) {
++           for (i=6; i<8; i++)
++                   if (gdt_table[i] == 0) {
++                           ldt_info.entry_number = i;
++                           target_ldt_info->entry_number = tswap32(i);
++                           break;
++                   }
++    }
++    unlock_user_struct(target_ldt_info, ptr, 0);
++    
++    if (ldt_info.entry_number < 6 || ldt_info.entry_number > 8)
++           return -EINVAL;
++    seg_32bit = ldt_info.flags & 1;
++    contents = (ldt_info.flags >> 1) & 3;
++    read_exec_only = (ldt_info.flags >> 3) & 1;
++    limit_in_pages = (ldt_info.flags >> 4) & 1;
++    seg_not_present = (ldt_info.flags >> 5) & 1;
++    useable = (ldt_info.flags >> 6) & 1;
++
++    if (contents == 3) {
++        if (seg_not_present == 0)
++            return -EINVAL;
++    }
++
++    /* NOTE: same code as Linux kernel */
++    /* Allow LDTs to be cleared by the user. */
++    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
++        if ((contents == 0             &&
++             read_exec_only == 1       &&
++             seg_32bit == 0            &&
++             limit_in_pages == 0       &&
++             seg_not_present == 1      &&
++             useable == 0 )) {
++            entry_1 = 0;
++            entry_2 = 0;
++            goto install;
++        }
++    }
++    
++    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
++        (ldt_info.limit & 0x0ffff);
++    entry_2 = (ldt_info.base_addr & 0xff000000) |
++        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
++        (ldt_info.limit & 0xf0000) |
++        ((read_exec_only ^ 1) << 9) |
++        (contents << 10) |
++        ((seg_not_present ^ 1) << 15) |
++        (seg_32bit << 22) |
++        (limit_in_pages << 23) |
++       (useable << 20) |
++       0x7000;
++
++    /* Install the new entry ...  */
++install:
++    lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
++    lp[0] = tswap32(entry_1);
++    lp[1] = tswap32(entry_2);
++    return 0;
++}
+ #endif /* defined(TARGET_I386) */
+ 
+ /* this stack is the equivalent of the kernel stack associated with a
+@@ -2154,15 +2229,20 @@
+     TaskState *ts;
+     uint8_t *new_stack;
+     CPUState *new_env;
++#if defined(TARGET_I386)
++       uint64_t *new_gdt_table;
++#endif
+ #ifdef USE_NPTL
+     unsigned int nptl_flags;
+ 
+     if (flags & CLONE_PARENT_SETTID)
+         *parent_tidptr = gettid();
+ #endif
+-    
++
+     if (flags & CLONE_VM) {
+         ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE);
++               if (!ts)
++                       return -ENOMEM;
+         memset(ts, 0, sizeof(TaskState));
+         new_stack = ts->stack;
+         ts->used = 1;
+@@ -2174,6 +2254,29 @@
+ #if defined(TARGET_I386)
+         if (!newsp)
+             newsp = env->regs[R_ESP];
++       new_gdt_table = malloc(9 * 8);
++       if (!new_gdt_table) {
++               free(new_env);
++               return -ENOMEM;
++       }
++       /* Copy main GDT table from parent, but clear TLS entries */
++       memcpy(new_gdt_table, g2h(env->gdt.base), 6 * 8);
++       memset(&new_gdt_table[6], 0, 3 * 8); 
++       new_env->gdt.base = h2g(new_gdt_table);
++       if (flags & 0x00080000 /* CLONE_SETTLS */) {
++               ret = do_set_thread_area(new_env, new_env->regs[R_ESI]);
++               if (ret) {
++                       free(new_gdt_table);
++                       free(new_env);
++                       return ret;
++               }
++       }
++       cpu_x86_load_seg(env, R_CS, new_env->regs[R_CS]);
++       cpu_x86_load_seg(env, R_DS, new_env->regs[R_DS]);
++       cpu_x86_load_seg(env, R_ES, new_env->regs[R_ES]);
++       cpu_x86_load_seg(env, R_SS, new_env->regs[R_SS]);
++       cpu_x86_load_seg(env, R_FS, new_env->regs[R_FS]);
++       cpu_x86_load_seg(env, R_GS, new_env->regs[R_GS]);
+         new_env->regs[R_ESP] = newsp;
+         new_env->regs[R_EAX] = 0;
+ #elif defined(TARGET_ARM)
+@@ -2517,6 +2620,68 @@
+     unlock_user_struct(target_ts, target_addr, 1);
+ }
+ 
++static long do_futex(target_ulong uaddr, int op, uint32_t val,
++                    target_ulong utime, target_ulong uaddr2,
++                    uint32_t val3)
++{
++       struct timespec host_utime;
++       unsigned long val2 = utime;
++
++       if (utime && (op == FUTEX_WAIT || op == FUTEX_LOCK_PI)) {
++               target_to_host_timespec(&host_utime, utime);
++               val2 = (unsigned long)&host_utime;
++       }
++ 
++#ifdef BSWAP_NEEDED
++       switch(op) {
++       case FUTEX_CMP_REQUEUE:
++               val3 = tswap32(val3);
++       case FUTEX_REQUEUE:
++               val2 = tswap32(val2);
++       case FUTEX_WAIT:
++       case FUTEX_WAKE:
++               val = tswap32(val);
++       case FUTEX_LOCK_PI: /* This one's icky, but comes out OK */
++       case FUTEX_UNLOCK_PI:
++               break;
++       default: 
++               gemu_log("qemu: Unsupported futex op %d\n", op);
++               return -ENOSYS;
++       } 
++#if 0 /* No, it's worse than this */
++       if (op == FUTEX_WAKE_OP) {
++               /* Need to munge the secondary operation (val3) */
++               val3 = tswap32(val3);
++               int op2 = (val3 >> 28) & 7;
++               int cmp = (val3 >> 24) & 15;
++               int oparg = (val3 << 8) >> 20;
++               int cmparg = (val3 << 20) >> 20;
++               int shift = val3 & (FUTEX_OP_OPARG_SHIFT << 28);
++
++               if (shift)
++                   oparg = (oparg & 7) + 24 - (oparg & 24);
++               else oparg = 
++               if (op2 == FUTEX_OP_ADD) {
++                       gemu_log("qemu: Unsupported wrong-endian FUTEX_OP_ADD\n");
++                       return -ENOSYS;
++               }
++               if (cmparg == FUTEX_OP_CMP_LT || cmparg == FUTEX_OP_CMP_GE ||
++                   cmparg == FUTEX_OP_CMP_LE || cmparg == FUTEX_OP_CMP_GT) {
++                       gemu_log("qemu: Unsupported wrong-endian futex cmparg %d\n", cmparg);
++                       return -ENOSYS;
++               }
++               val3 = shift | (op2<<28) | (cmp<<24) | (oparg<<12) | cmparg;
++       }
++#endif
++#endif
++       return syscall(__NR_futex, g2h(uaddr), op, val, val2, g2h(uaddr2), val3);
++}
++
++int do_set_tid_address(target_ulong tidptr)
++{
++       return syscall(__NR_set_tid_address, g2h(tidptr));
++}
++
+ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 
+                 long arg4, long arg5, long arg6)
+ {
+@@ -2534,7 +2699,7 @@
+         _mcleanup();
+ #endif
+         gdb_exit(cpu_env, arg1);
+-        /* XXX: should free thread stack and CPU env */
++        /* XXX: should free thread stack, GDT and CPU env */
+         _exit(arg1);
+         ret = 0; /* avoid warning */
+         break;
+@@ -4642,6 +4807,9 @@
+       ((CPUMIPSState *) cpu_env)->tls_value = arg1;
+       ret = 0;
+       break;
++#elif TARGET_i386
++	  ret = get_errno(do_set_thread_area(cpu_env, arg1));
++	  break;
+ #else
+       goto unimplemented_nowarn;
+ #endif
+@@ -4655,6 +4823,21 @@
+         goto unimplemented_nowarn;
+ #endif
+ 
++#ifdef TARGET_NR_futex
++    case TARGET_NR_futex:
++       ret = get_errno(do_futex(arg1, arg2, arg3, arg4, arg5, arg6));
++       break;
++#endif
++#ifdef TARGET_NR_set_tid_address
++    case TARGET_NR_set_tid_address:
++        ret = get_errno(do_set_tid_address(arg1));
++       break;
++#endif
++#ifdef TARGET_NR_set_robust_list
++    case TARGET_NR_set_robust_list:
++           goto unimplemented_nowarn;
++#endif
++
+ #ifdef TARGET_NR_clock_gettime
+     case TARGET_NR_clock_gettime:
+     {
+@@ -4678,12 +4861,6 @@
+     }
+ #endif
+ 
+-#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
+-    case TARGET_NR_set_tid_address:
+-      ret = get_errno(set_tid_address((int *) arg1));
+-      break;
+-#endif
+-
+     default:
+     unimplemented:
+         gemu_log("qemu: Unsupported syscall: %d\n", num);