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linux-user: Add i386 TLS setter 

We can easily set the TLS on i386. Add code to do so.

Signed-off-by: Alexander Graf <agraf@suse.de>
[PMM: also remove "target_nptl=no" line from configure, for
 consistency with other patches in this series]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Alexander Graf 2013-07-16 18:44:58 +01:00 committed by Riku Voipio
parent 4ce6243dc6
commit bc22eb447c
3 changed files with 11 additions and 4 deletions
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1
configure vendored
View File

@ -4190,7 +4190,6 @@ TARGET_ABI_DIR=""
case "$target_name" in
i386)
target_nptl="no"
;;
x86_64)
TARGET_BASE_ARCH=i386

12
linux-user/i386/target_cpu.h
View File

@ -28,6 +28,14 @@ static inline void cpu_clone_regs(CPUX86State *env, target_ulong newsp)
env->regs[R_EAX] = 0;
}
/* TODO: need to implement cpu_set_tls() */
#if defined(TARGET_ABI32)
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr);
#endif
static inline void cpu_set_tls(CPUX86State *env, target_ulong newtls)
{
do_set_thread_area(env, newtls);
cpu_x86_load_seg(env, R_GS, env->segs[R_GS].selector);
}
#endif /* defined(TARGET_ABI32) */
#endif /* !defined(TARGET_CPU_H) */

2
linux-user/syscall.c
View File

@ -4055,7 +4055,7 @@ static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
}
#if defined(TARGET_I386) && defined(TARGET_ABI32)
static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
{
uint64_t *gdt_table = g2h(env->gdt.base);
struct target_modify_ldt_ldt_s ldt_info;