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authorMarcin Juszkiewicz <hrw@openembedded.org>2007-08-22 17:01:20 +0000
committerMarcin Juszkiewicz <hrw@openembedded.org>2007-08-22 17:01:20 +0000
commitfa760cfb01223f333a8553566d845b7a462c459b (patch)
tree20c7093841e3bf7445fb2c628a4334bc3ead221a /packages/qemu/files/qemu-0.9.0-nptl-update.patch
parente398e9063c713cb73ea3cc19aecc8d9138d6acf9 (diff)
parent70e5cf9476598fdf441d22adfd166e3ee90ae4c8 (diff)
merge of '4ceb0ef60a086087bfe7a232b07d6fb71c3ccd04'
and 'eaf6fede3ee9af7cea4d430e426ee09da45e8f21'
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.patch294
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);