diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/rt_sigaction.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/rt_sigaction.S | 41 |
1 files changed, 4 insertions, 37 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S index ca25eee611..17e55239fe 100644 --- a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S +++ b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S @@ -18,43 +18,6 @@ #include <sysdep.h> -/* On Alpha we desparately want to avoid having to issue an imb. Ordinarily - the kernel would have to issue one after setting up the signal return - stack, but the Linux rt_sigaction syscall is prepared to accept a pointer - to the sigreturn syscall, instead of inlining it on the stack. - - This just about halves signal delivery time. */ - - .text - -ENTRY(__syscall_rt_sigaction) - cfi_startproc - ldgp gp,0(pv) -#ifdef PROF - .set noat - lda AT, _mcount - jsr AT, (AT), _mcount - .set at -#endif - .prologue 1 - - beq a1, 0f - ldl t0, 8(a1) # sa_flags - - ldah a4, __syscall_sigreturn(gp) !gprelhigh - ldah t1, __syscall_rt_sigreturn(gp) !gprelhigh - lda a4, __syscall_sigreturn(a4) !gprellow - lda t1, __syscall_rt_sigreturn(t1) !gprellow - and t0, 0x40, t0 # SA_SIGINFO - cmovne t0, t1, a4 - -0: ldi v0, __NR_rt_sigaction - callsys - bne a3, SYSCALL_ERROR_LABEL - ret - cfi_endproc -PSEUDO_END(__syscall_rt_sigaction) - /* To enable unwinding through the signal frame without special hackery elsewhere, describe the entire struct sigcontext with unwind info. @@ -104,6 +67,8 @@ __syscall_sigreturn: callsys .size __syscall_sigreturn, .-__syscall_sigreturn .type __syscall_sigreturn, @function + .global __syscall_sigreturn; + .hidden __syscall_sigreturn; /* See above wrt including the nop. */ cfi_def_cfa_offset (176 + 648) @@ -116,5 +81,7 @@ __syscall_rt_sigreturn: callsys .size __syscall_rt_sigreturn, .-__syscall_rt_sigreturn .type __syscall_rt_sigreturn, @function + .global __syscall_rt_sigreturn; + .hidden __syscall_rt_sigreturn; cfi_endproc |