diff --git a/sysdeps/unix/sysv/linux/hppa/clone.S b/sysdeps/unix/sysv/linux/hppa/clone.S index a31afea429..c18163d0f7 100644 --- a/sysdeps/unix/sysv/linux/hppa/clone.S +++ b/sysdeps/unix/sysv/linux/hppa/clone.S @@ -59,16 +59,6 @@ .text ENTRY(__clone) - /* Prologue */ - stwm %r4, 64(%sp) - .cfi_def_cfa_offset -64 - .cfi_offset 4, 0 - stw %sp, -4(%sp) -#ifdef PIC - stw %r19, -32(%sp) - .cfi_offset 19, 32 -#endif - /* Sanity check arguments. */ comib,=,n 0,%arg0,.LerrorSanity /* no NULL function pointers */ comib,=,n 0,%arg1,.LerrorSanity /* no NULL stack pointers */ @@ -87,54 +77,34 @@ ENTRY(__clone) /* User stack pointer is in the correct register already */ /* Load args from stack... */ - ldw -116(%sp), %r24 /* Load parent_tidptr */ - ldw -120(%sp), %r23 /* Load newtls */ - ldw -124(%sp), %r22 /* Load child_tidptr */ - - /* Save the PIC register. */ -#ifdef PIC - copy %r19, %r4 /* parent */ -#endif + ldw -52(%sp), %r24 /* Load parent_tidptr */ + ldw -56(%sp), %r23 /* Load newtls */ + ldw -60(%sp), %r22 /* Load child_tidptr */ /* Do the system call */ ble 0x100(%sr2, %r0) ldi __NR_clone, %r20 ldi -4096, %r1 - comclr,>>= %r1, %ret0, %r0 /* Note: unsigned compare. */ - b,n .LerrorRest - - /* Restore the PIC register. */ -#ifdef PIC - copy %r4, %r19 /* parent */ -#endif - + comb,<<,n %r1, %ret0, .LerrorRest /* Note: unsigned compare. */ comib,=,n 0, %ret0, .LthreadStart - - /* Successful return from the parent - No need to restore the PIC register, - since we return immediately. */ - - ldw -84(%sp), %rp - bv %r0(%rp) - ldwm -64(%sp), %r4 + bv,n %r0(%rp) .LerrorRest: - /* Something bad happened -- no child created */ + /* Something bad happened -- no child created -- need a frame */ + ldo 64(%sp),%sp + .cfi_def_cfa_offset -64 bl __syscall_error, %rp sub %r0, %ret0, %arg0 ldw -84(%sp), %rp /* Return after setting errno, ret0 is set to -1 by __syscall_error. */ bv %r0(%rp) - ldwm -64(%sp), %r4 + ldo -64(%sp), %sp .LerrorSanity: /* Sanity checks failed, return -1, and set errno to EINVAL. */ - bl __syscall_error, %rp - ldi EINVAL, %arg0 - ldw -84(%sp), %rp - bv %r0(%rp) - ldwm -64(%sp), %r4 + b .LerrorRest + ldi -EINVAL, %ret0 .LthreadStart: /* Load up the arguments. */ @@ -144,14 +114,8 @@ ENTRY(__clone) /* $$dyncall fixes child's PIC register */ /* Call the user's function */ -#ifdef PIC - copy %r19, %r4 -#endif bl $$dyncall, %r31 copy %r31, %rp -#ifdef PIC - copy %r4, %r19 -#endif copy %r28, %r26 ble 0x100(%sr2, %r0) ldi __NR_exit, %r20 diff --git a/sysdeps/unix/sysv/linux/hppa/vfork.S b/sysdeps/unix/sysv/linux/hppa/vfork.S new file mode 100644 index 0000000000..5fd368f3cf --- /dev/null +++ b/sysdeps/unix/sysv/linux/hppa/vfork.S @@ -0,0 +1,53 @@ +/* Copyright (C) 1999-2024 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#define _ERRNO_H 1 +#include + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +ENTRY (__vfork) + ble 0x100(%sr2, %r0) + ldi __NR_vfork, %r20 + + ldi -4096, %r1 + comclr,<< %r1, %ret0, %r0 /* Note: unsigned compare. */ + bv,n %r0(%rp) + + /* Something bad happened -- no child created -- we need a frame */ + ldo 64(%sp), %sp + .cfi_def_cfa_offset -64 + + /* Set errno */ + bl __syscall_error, %rp + sub %r0, %ret0, %arg0 + + /* ret0 is set to -1 by __syscall_error */ + ldw -84(%sp), %rp + bv %r0(%rp) + ldo -64(%sp), %sp + +PSEUDO_END (__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) +strong_alias (__vfork, __libc_vfork)