diff options
Diffstat (limited to 'libc/sysdeps/linux/riscv64/clone.S')
| -rw-r--r-- | libc/sysdeps/linux/riscv64/clone.S | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/riscv64/clone.S b/libc/sysdeps/linux/riscv64/clone.S index f7684c88d..315de2ac8 100644 --- a/libc/sysdeps/linux/riscv64/clone.S +++ b/libc/sysdeps/linux/riscv64/clone.S @@ -29,6 +29,9 @@ .text LEAF (clone) + /* Align stack to a 128-bit boundary as per RISC-V ABI. */ + andi a1,a1,ALMASK + /* Sanity check arguments. */ beqz a0,L (invalid) /* No NULL function pointers. */ beqz a1,L (invalid) /* No NULL stack pointers. */ @@ -57,7 +60,7 @@ L (invalid): li a0, -EINVAL /* Something bad happened -- no child created. */ L (error): - j __syscall_error + tail __syscall_error END (clone) /* Load up the arguments to the function. Put this block of code in @@ -66,6 +69,9 @@ L (error): ENTRY (__thread_start) L (thread_start): + .cfi_label .Ldummy + cfi_undefined (ra) + /* Restore the arg for user's function. */ REG_L a1,0(sp) /* Function pointer. */ REG_L a0,SZREG(sp) /* Argument pointer. */ |