diff options
Diffstat (limited to 'packages/qemu/files/qemu-0.9.0-nptl-update.patch')
| -rw-r--r-- | packages/qemu/files/qemu-0.9.0-nptl-update.patch | 294 |
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); |