diff options
Diffstat (limited to 'libc/sysdeps/linux/arc/clone.S')
| -rw-r--r-- | libc/sysdeps/linux/arc/clone.S | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/arc/clone.S b/libc/sysdeps/linux/arc/clone.S index db5000caf..3c1388ec7 100644 --- a/libc/sysdeps/linux/arc/clone.S +++ b/libc/sysdeps/linux/arc/clone.S @@ -29,6 +29,7 @@ #define CLONE_VM 0x00000100 #define CLONE_THREAD 0x00010000 +#define CLONE_SETTLS 0x00080000 #define CLONE_THREAD_N_VM (CLONE_THREAD | CLONE_VM) ENTRY(clone) @@ -42,6 +43,7 @@ ENTRY(clone) mov r10, r0 ; @fn mov r11, r3 ; @args mov r12, r2 ; @clone_flags + mov r9, r5 ; @tls ; adjust libc args for syscall @@ -57,6 +59,14 @@ ENTRY(clone) jnz [blink] ; Parent returns ; ----- child starts here --------- + +#if defined(__UCLIBC_HAS_TLS__) + ; Setup TP register (since kernel doesn't do that) + and.f 0, r12, CLONE_SETTLS + bz .Lnext_clone_quirk + SET_TP r9 + +.Lnext_clone_quirk: #ifdef RESET_PID mov_s r2, CLONE_THREAD_N_VM and_s r2, r2, r12 @@ -70,7 +80,7 @@ ENTRY(clone) .Lgo_thread: #endif - +#endif ; child jumps off to @fn with @arg as argument, and returns here jl.d [r10] mov r0, r11 |