diff options
Diffstat (limited to 'libc')
31 files changed, 20 insertions, 405 deletions
diff --git a/libc/sysdeps/linux/arc/clone.S b/libc/sysdeps/linux/arc/clone.S index 3942b88f7..c2ce906c9 100644 --- a/libc/sysdeps/linux/arc/clone.S +++ b/libc/sysdeps/linux/arc/clone.S @@ -61,20 +61,9 @@ ENTRY(clone) ; Setup TP register (since kernel doesn't do that) and.f 0, r12, CLONE_SETTLS bz .Lnext_clone_quirk - SET_TP r9 + mov r25, r9 .Lnext_clone_quirk: -#ifdef RESET_PID - bbit1 r12, 16, .Lgo_thread ; CLONE_THREAD = (1 << 16) - - mov r8, __NR_getpid - ARC_TRAP_INSN ; r0 has PID - THREAD_SELF r1 ; Get to struct pthread (just before TCB) - st r0, [r1, PTHREAD_PID] - st r0, [r1, PTHREAD_TID] - -.Lgo_thread: -#endif #endif ; child jumps off to @fn with @arg as argument, and returns here jl.d [r10] diff --git a/libc/sysdeps/linux/arc/vfork.S b/libc/sysdeps/linux/arc/vfork.S index 573a29f26..11959b66b 100644 --- a/libc/sysdeps/linux/arc/vfork.S +++ b/libc/sysdeps/linux/arc/vfork.S @@ -16,25 +16,12 @@ #define CLONE_FLAGS_FOR_VFORK (CLONE_VM|CLONE_VFORK|SIGCHLD) ENTRY(__vfork) -#ifdef SAVE_PID - THREAD_SELF r1 ; Get to struct pthread (just before TCB) - ld r2, [r1, PTHREAD_PID] - neg.f r3, r2 - bset.z r3, r3, 31 - st r3, [r1, PTHREAD_PID] -#endif mov r0, CLONE_FLAGS_FOR_VFORK mov_s r1, sp mov r8, __NR_clone ARC_TRAP_INSN cmp r0, 0 -#ifdef RESTORE_PID - bz 1f ; child continues - THREAD_SELF r1 ; Get to struct pthread (just before TCB) - st r2, [r1, PTHREAD_PID] -1: -#endif jge [blink] ; pid >=0 return, else detour via tailcall to errno b __syscall_error diff --git a/libc/sysdeps/linux/arm/clone.S b/libc/sysdeps/linux/arm/clone.S index 0b293ecb7..b156e932b 100644 --- a/libc/sysdeps/linux/arm/clone.S +++ b/libc/sysdeps/linux/arm/clone.S @@ -110,9 +110,6 @@ __clone: @ do the system call @ get flags mov r0, r2 -#ifdef RESET_PID - mov ip, r2 -#endif @ new sp is already in r1 push {r4, r7} cfi_adjust_cfa_offset (8) @@ -138,21 +135,6 @@ PSEUDO_END (__clone) 1: .fnstart .cantunwind -#ifdef RESET_PID - tst ip, #CLONE_THREAD - bne 3f - GET_TLS (lr) - mov r1, r0 - tst ip, #CLONE_VM - ldr r7, =SYS_ify(getpid) - ite ne - movne r0, #-1 - swieq 0x0 - NEGOFF_ADJ_BASE (r1, TID_OFFSET) - str r0, NEGOFF_OFF1 (r1, TID_OFFSET) - str r0, NEGOFF_OFF2 (r1, PID_OFFSET, TID_OFFSET) -3: -#endif @ pick the function arg and call address off the stack and execute ldr r0, [sp, #4] mov lr, pc diff --git a/libc/sysdeps/linux/arm/vfork.S b/libc/sysdeps/linux/arm/vfork.S index 221a90c40..455b2f8d9 100644 --- a/libc/sysdeps/linux/arm/vfork.S +++ b/libc/sysdeps/linux/arm/vfork.S @@ -13,15 +13,6 @@ #include <bits/errno.h> #include <sys/syscall.h> -#ifndef SAVE_PID -#define SAVE_PID -#endif - -#ifndef RESTORE_PID -#define RESTORE_PID -#endif - - #ifdef __NR_fork .text .global __vfork @@ -33,9 +24,7 @@ .thumb_func __vfork: #ifdef __NR_vfork - SAVE_PID DO_CALL (vfork) - RESTORE_PID ldr r1, =0xfffff000 cmp r0, r1 bcs 1f @@ -69,9 +58,7 @@ __error: __vfork: #ifdef __NR_vfork - SAVE_PID DO_CALL (vfork) - RESTORE_PID cmn r0, #4096 IT(t, cc) BXC(cc, lr) diff --git a/libc/sysdeps/linux/common/bits/kernel-features.h b/libc/sysdeps/linux/common/bits/kernel-features.h index 0b3632063..e0195e405 100644 --- a/libc/sysdeps/linux/common/bits/kernel-features.h +++ b/libc/sysdeps/linux/common/bits/kernel-features.h @@ -375,13 +375,6 @@ # define __ASSUME_AT_SECURE 1 #endif -/* Starting with the 2.5.75 kernel the kernel fills in the correct value - in the si_pid field passed as part of the siginfo_t struct to signal - handlers. */ -#if __LINUX_KERNEL_VERSION >= 132427 -# define __ASSUME_CORRECT_SI_PID 1 -#endif - /* The utimes syscall has been available for some architectures forever. For x86 it was introduced after 2.5.75, for x86-64, ppc, and ppc64 it was introduced in 2.6.0-test3. */ diff --git a/libc/sysdeps/linux/i386/Makefile.arch b/libc/sysdeps/linux/i386/Makefile.arch index e1739e193..6c9eed897 100644 --- a/libc/sysdeps/linux/i386/Makefile.arch +++ b/libc/sysdeps/linux/i386/Makefile.arch @@ -6,11 +6,8 @@ # CSRC-y := brk.c __syscall_error.c sigaction.c - -SSRC-y := \ - __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ - sync_file_range.S syscall.S mmap.S mmap64.S +SSRC-y := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ + sync_file_range.S syscall.S mmap.S mmap64.S vfork.S clone.S SSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise64.S -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += vfork.S clone.S SSRC-$(UCLIBC_HAS_CONTEXT_FUNCS) += makecontext.S setcontext.S getcontext.S swapcontext.S diff --git a/libc/sysdeps/linux/i386/clone.S b/libc/sysdeps/linux/i386/clone.S index 632cf59df..68e87b567 100644 --- a/libc/sysdeps/linux/i386/clone.S +++ b/libc/sysdeps/linux/i386/clone.S @@ -78,10 +78,6 @@ clone: movl %eax,8(%ecx) /* Don't leak any information. */ movl $0,4(%ecx) -#ifndef RESET_PID - movl $0,(%ecx) -#endif - /* Do the system call */ pushl %ebx @@ -92,10 +88,6 @@ clone: movl FLAGS+12(%esp),%ebx movl CTID+12(%esp),%edi movl $__NR_clone,%eax -#ifdef RESET_PID - /* Remember the flag value. */ - movl %ebx, (%ecx) -#endif int $0x80 popl %edi popl %esi diff --git a/libc/sysdeps/linux/i386/vfork.S b/libc/sysdeps/linux/i386/vfork.S index d85726f19..6c4102e0a 100644 --- a/libc/sysdeps/linux/i386/vfork.S +++ b/libc/sysdeps/linux/i386/vfork.S @@ -19,18 +19,10 @@ __vfork: popl %ecx -#ifdef SAVE_PID - SAVE_PID -#endif - movl $__NR_vfork,%eax int $0x80 pushl %ecx -#ifdef RESTORE_PID - RESTORE_PID -#endif - cmpl $-4095,%eax jae __syscall_error ret diff --git a/libc/sysdeps/linux/ia64/clone2.S b/libc/sysdeps/linux/ia64/clone2.S index c077f722a..692ee3600 100644 --- a/libc/sysdeps/linux/ia64/clone2.S +++ b/libc/sysdeps/linux/ia64/clone2.S @@ -16,11 +16,8 @@ <http://www.gnu.org/licenses/>. */ #include "sysdep.h" - -#include "sysdep.h" #include <asm/errno.h> - /* int __clone2(int (*fn) (void *arg), void *child_stack_base, */ /* size_t child_stack_size, int flags, void *arg, */ /* pid_t *parent_tid, void *tls, pid_t *child_tid) */ @@ -68,22 +65,6 @@ ENTRY(__clone2) (CHILD) mov loc0=gp (PARENT) ret ;; -#ifdef RESET_PID - tbit.nz p6,p0=in3,16 /* CLONE_THREAD */ - tbit.z p7,p10=in3,8 /* CLONE_VM */ -(p6) br.cond.dptk 1f - ;; - mov r15=SYS_ify (getpid) -(p10) addl r8=-1,r0 -(p7) break __BREAK_SYSCALL - ;; - add r9=PID,r13 - add r10=TID,r13 - ;; - st4 [r9]=r8 - st4 [r10]=r8 - ;; -#endif 1: ld8 out1=[in0],8 /* Retrieve code pointer. */ mov out0=in4 /* Pass proper argument to fn */ ;; diff --git a/libc/sysdeps/linux/metag/clone.S b/libc/sysdeps/linux/metag/clone.S index d9d836338..4687cbc0f 100644 --- a/libc/sysdeps/linux/metag/clone.S +++ b/libc/sysdeps/linux/metag/clone.S @@ -52,27 +52,6 @@ __clone: ! BRKPNT ! We are the child -#ifdef RESET_PID - SETL [A0StP++], D0FrT, D1RtP - MOVT D0FrT, #HI(CLONE_THREAD) - ADD D0FrT, D0FrT, #LO(CLONE_THREAD) - ANDS D0FrT, D0FrT, D1Ar1 - BNZ 3f - MOVT D0FrT, #HI(CLONE_VM) - ADD D0FrT, D0FrT, #LO(CLONE_VM) - ANDS D0FrT, D0FrT, D1Ar1 - BZ 1f - MOV D1Ar1, #-1 - BA 2f -1: MOV D1Re0, #__NR_getpid - SWITCH #0x440001 - MOV D1Ar1, D0Re0 -2: CALLR D1RtP, __CLONE_METAG_LOAD_TP - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE - SETD [D0Re0 + #PID], D1Ar1 - SETD [D0Re0 + #TID], D1Ar1 -3: GETL D0FrT, D1RtP, [--A0StP] -#endif ! Rearrange the function arg and call address from registers MOV D0Ar2, D0FrT MOV D1Ar1, D0Ar6 diff --git a/libc/sysdeps/linux/metag/vfork.S b/libc/sysdeps/linux/metag/vfork.S index 8573dedd3..5e2fc8808 100644 --- a/libc/sysdeps/linux/metag/vfork.S +++ b/libc/sysdeps/linux/metag/vfork.S @@ -8,14 +8,6 @@ #include <bits/errno.h> #include <sys/syscall.h> -#ifndef SAVE_PID -#define SAVE_PID -#endif - -#ifndef RESTORE_PID -#define RESTORE_PID -#endif - #ifdef __NR_vfork #define __VFORK_NR __NR_vfork #else @@ -33,8 +25,6 @@ .type ___vfork, @function ___vfork: - SAVE_PID - MOV D1Ar1, #0x4111 /* CLONE_VM | CLONE_VFORK | SIGCHLD */ MOV D0Ar2, #0 MOV D1Ar3, #0 @@ -44,8 +34,6 @@ ___vfork: MOV D1Re0, #__NR_clone SWITCH #0x440001 - RESTORE_PID - MOVT D1Re0, #HI(-4096) ADD D1Re0, D1Re0, #LO(-4096) CMP D1Re0, D0Re0 diff --git a/libc/sysdeps/linux/mips/Makefile.arch b/libc/sysdeps/linux/mips/Makefile.arch index 10deedc3e..5e54b07a6 100644 --- a/libc/sysdeps/linux/mips/Makefile.arch +++ b/libc/sysdeps/linux/mips/Makefile.arch @@ -9,11 +9,11 @@ CSRC-y := \ __longjmp.c brk.c setjmp_aux.c \ pread_write.c sigaction.c _test_and_set.c -SSRC-y := bsd-_setjmp.S bsd-setjmp.S setjmp.S syscall.S pipe.S syscall_error.S +SSRC-y := bsd-_setjmp.S bsd-setjmp.S setjmp.S syscall.S pipe.S syscall_error.S \ + vfork.S clone.S CSRC-$(UCLIBC_LINUX_SPECIFIC) += cacheflush.c sysmips.c CSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise.c posix_fadvise64.c -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += vfork.S clone.S SSRC-$(UCLIBC_HAS_CONTEXT_FUNCS) += makecontext.S setcontext.S getcontext.S \ swapcontext.S diff --git a/libc/sysdeps/linux/mips/clone.S b/libc/sysdeps/linux/mips/clone.S index 1b5a8f472..326d1d34a 100644 --- a/libc/sysdeps/linux/mips/clone.S +++ b/libc/sysdeps/linux/mips/clone.S @@ -24,9 +24,6 @@ #include <sysdep.h> #define _ERRNO_H 1 #include <bits/errno.h> -#ifdef RESET_PID -#include <tls.h> -#endif #define CLONE_VM 0x00000100 #define CLONE_THREAD 0x00010000 @@ -61,9 +58,6 @@ NESTED(clone,4*SZREG,sp) PTR_SUBU a1,32 /* Reserve argument save space. */ PTR_S a0,0(a1) /* Save function pointer. */ PTR_S a3,PTRSIZE(a1) /* Save argument pointer. */ -#ifdef RESET_PID - LONG_S a2,(PTRSIZE*2)(a1) /* Save clone flags. */ -#endif move a0,a2 @@ -122,14 +116,6 @@ L(thread_start): SAVE_GP (GPOFF) /* The stackframe has been created on entry of clone(). */ -#ifdef RESET_PID - /* Check and see if we need to reset the PID. */ - LONG_L a0,(PTRSIZE*2)(sp) - and a1,a0,CLONE_THREAD - beqz a1,L(restore_pid) -L(donepid): -#endif - /* Restore the arg for user's function. */ PTR_L t9,0(sp) /* Function pointer. */ PTR_L a0,PTRSIZE(sp) /* Argument pointer. */ @@ -146,20 +132,6 @@ L(donepid): jal _exit #endif -#ifdef RESET_PID -L(restore_pid): - and a1,a0,CLONE_VM - li v0,-1 - bnez a1,L(gotpid) - li v0,__NR_getpid - syscall -L(gotpid): - READ_THREAD_POINTER(v1) - INT_S v0,PID_OFFSET(v1) - INT_S v0,TID_OFFSET(v1) - b L(donepid) -#endif - END(__thread_start) weak_alias(clone, __clone) diff --git a/libc/sysdeps/linux/mips/vfork.S b/libc/sysdeps/linux/mips/vfork.S index 494c34fd0..f504c2bb0 100644 --- a/libc/sysdeps/linux/mips/vfork.S +++ b/libc/sysdeps/linux/mips/vfork.S @@ -21,14 +21,6 @@ #include <sys/asm.h> #include <sysdep.h> -#ifndef SAVE_PID -#define SAVE_PID -#endif - -#ifndef RESTORE_PID -#define RESTORE_PID -#endif - #ifdef __NR_fork /* int vfork() */ @@ -50,8 +42,6 @@ NESTED(__vfork,FRAMESZ,sp) PTR_ADDU sp, FRAMESZ - SAVE_PID - li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */ move a1, sp @@ -59,8 +49,6 @@ NESTED(__vfork,FRAMESZ,sp) li v0,__NR_clone syscall - RESTORE_PID - bnez a3,L(error) /* Successful return from the parent or child. */ diff --git a/libc/sysdeps/linux/nds32/clone.S b/libc/sysdeps/linux/nds32/clone.S index 1ed77fb2e..0e6e432de 100644 --- a/libc/sysdeps/linux/nds32/clone.S +++ b/libc/sysdeps/linux/nds32/clone.S @@ -28,10 +28,6 @@ #define _ERRNO_H 1 #include <bits/errno.h> -#ifdef RESET_PID -#include <tcb-offsets.h> -#endif - #define CLONE_VM 0x00000100 #define CLONE_THREAD 0x00010000 @@ -131,27 +127,7 @@ ENTRY(__clone) cfi_restore(fp) #endif /* PIC */ ret - -#ifdef RESET_PID 4: - cfi_undefined(lp) - movi $r0, CLONE_THREAD ! Skip when CLONE_THREAD is set. - and $r0, $r5, $r0 - bnez $r0, 8f - movi $r0, CLONE_VM ! Value = -1 when CLONE_VM is set. - and $r0, $r5, $r0 - beqz $r0, 6f - movi $r0, -1 - j 7f -6: - __do_syscall(getpid) ! __do_syscall(gettid) ! __do_syscall(getpid) -7: - swi $r0, [$r25 + PID_OFFSET] - swi $r0, [$r25 + TID_OFFSET] -8: -#else -4: -#endif /* Only in child's stack. */ pop $r1 ! fn pop $r0 ! arg diff --git a/libc/sysdeps/linux/nds32/vfork.S b/libc/sysdeps/linux/nds32/vfork.S index ac3fa30fd..ab32135fc 100644 --- a/libc/sysdeps/linux/nds32/vfork.S +++ b/libc/sysdeps/linux/nds32/vfork.S @@ -25,32 +25,18 @@ #define _ERRNO_H 1 #include <bits/errno.h> -#ifndef SAVE_PID -#define SAVE_PID -#endif - -#ifndef RESTORE_PID -#define RESTORE_PID -#endif /* 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) #ifdef PIC .pic #endif #ifdef __NR_vfork -# ifdef SAVE_PID - SAVE_PID -# endif syscall __NR_vfork -# ifdef RESTORE_PID - RESTORE_PID -# endif bltz $r0, 2f 1: ret diff --git a/libc/sysdeps/linux/nios2/clone.S b/libc/sysdeps/linux/nios2/clone.S index 0626d8aa2..04f06348c 100644 --- a/libc/sysdeps/linux/nios2/clone.S +++ b/libc/sysdeps/linux/nios2/clone.S @@ -24,10 +24,6 @@ #define _ERRNO_H 1 #include <bits/errno.h> -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ -#include <tcb-offsets.h> -#endif - #define CLONE_VM 0x00000100 /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, @@ -64,10 +60,6 @@ thread_start: andi r2, r4, CLONE_VM bne r2, zero, 2f DO_CALL (getpid, 0) -#ifdef RESET_PID - stw r2, PID_OFFSET(r23) - stw r2, TID_OFFSET(r23) -#endif 2: ldw r5, 4(sp) /* Function pointer. */ ldw r4, 0(sp) /* Argument pointer. */ diff --git a/libc/sysdeps/linux/nios2/vfork.S b/libc/sysdeps/linux/nios2/vfork.S index 99e4a73e1..2bef2a982 100644 --- a/libc/sysdeps/linux/nios2/vfork.S +++ b/libc/sysdeps/linux/nios2/vfork.S @@ -18,21 +18,7 @@ #include <sysdep.h> -#ifdef __UCLIBC_HAS_THREADS_NATIVE__ -#include <tcb-offsets.h> -#endif - ENTRY(__vfork) - -#ifdef RESET_PID - ldw r6, PID_OFFSET(r23) - sub r7, zero, r6 - bne r7, zero, 2f - movhi r7, %hi(0x80000000) -2: - stw r7, PID_OFFSET(r23) -#endif - movi r4, 0x4111 /* (CLONE_VM | CLONE_VFORK | SIGCHLD) */ mov r5, zero @@ -42,9 +28,6 @@ ENTRY(__vfork) trap beq r2, zero, 1f -#ifdef RESET_PID - stw r6, PID_OFFSET(r23) -#endif 1: ret diff --git a/libc/sysdeps/linux/powerpc/Makefile.arch b/libc/sysdeps/linux/powerpc/Makefile.arch index f0144e7b9..9dc27c4a5 100644 --- a/libc/sysdeps/linux/powerpc/Makefile.arch +++ b/libc/sysdeps/linux/powerpc/Makefile.arch @@ -10,9 +10,7 @@ CSRC-$(if $(UCLIBC_HAS_LONG_DOUBLE_MATH),,y) += copysignl.c SSRC-y := \ __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S brk.S \ - __uClibc_syscall.S syscall.S - -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += clone.S vfork.S + __uClibc_syscall.S syscall.S clone.S vfork.S ifeq ($(CONFIG_E500),y) ARCH_HEADERS := fenv.h diff --git a/libc/sysdeps/linux/powerpc/clone.S b/libc/sysdeps/linux/powerpc/clone.S index 8efbbda1a..45319d00d 100644 --- a/libc/sysdeps/linux/powerpc/clone.S +++ b/libc/sysdeps/linux/powerpc/clone.S @@ -47,14 +47,10 @@ __clone: /* Set up stack frame for parent. */ stwu r1,-32(r1) cfi_adjust_cfa_offset (32) -#ifdef RESET_PID - stmw r28,16(r1) -#else -# ifndef __ASSUME_FIXED_CLONE_SYSCALL +#ifndef __ASSUME_FIXED_CLONE_SYSCALL stmw r29,16(r1) -# else +#else stmw r30,16(r1) -# endif #endif /* Set up stack frame for child. */ @@ -67,9 +63,6 @@ __clone: #ifndef __ASSUME_FIXED_CLONE_SYSCALL mr r29,r4 /* Stack pointer in r29. */ #endif -#ifdef RESET_PID - mr r28,r5 -#endif mr r31,r6 /* Argument in r31. */ /* 'flags' argument is first parameter to clone syscall. (The other @@ -101,17 +94,6 @@ __clone: mr r1,r29 #endif -#ifdef RESET_PID - andis. r0,r28,CLONE_THREAD>>16 - bne+ r0,.Loldpid - andi. r0,r28,CLONE_VM - li r3,-1 - bne- r0,.Lnomoregetpid -.Lnomoregetpid: - stw r3,TID(r2) - stw r3,PID(r2) -.Loldpid: -#endif /* Call procedure. */ mtctr r30 mr r3,r31 @@ -121,14 +103,10 @@ __clone: .Lparent: /* Parent. Restore registers & return. */ -#ifdef RESET_PID - lmw r28,16(r1) -#else -# ifndef __ASSUME_FIXED_CLONE_SYSCALL +#ifndef __ASSUME_FIXED_CLONE_SYSCALL lmw r29,16(r1) -# else +#else lmw r30,16(r1) -# endif #endif addi r1,r1,32 bnslr+ diff --git a/libc/sysdeps/linux/sh/Makefile.arch b/libc/sysdeps/linux/sh/Makefile.arch index 99a77213b..6103381fd 100644 --- a/libc/sysdeps/linux/sh/Makefile.arch +++ b/libc/sysdeps/linux/sh/Makefile.arch @@ -6,10 +6,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -CSRC-y := \ - pipe.c __init_brk.c brk.c sbrk.c pread_write.c - -SSRC-y := setjmp.S __longjmp.S ___fpscr_values.S +CSRC-y := pipe.c __init_brk.c brk.c sbrk.c pread_write.c +SSRC-y := setjmp.S __longjmp.S ___fpscr_values.S clone.S vfork.S CSRC-$(UCLIBC_LINUX_SPECIFIC) += cacheflush.c -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += clone.S vfork.S diff --git a/libc/sysdeps/linux/sh/clone.S b/libc/sysdeps/linux/sh/clone.S index 3ed6b25de..334f83f1a 100644 --- a/libc/sysdeps/linux/sh/clone.S +++ b/libc/sysdeps/linux/sh/clone.S @@ -23,9 +23,7 @@ #include <sysdep.h> #define _ERRNO_H 1 #include <bits/errno.h> -#ifdef RESET_PID -#include <tcb-offsets.h> -#endif + /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, pid_t *ptid, void *tls, pid_t *ctid); */ @@ -85,29 +83,7 @@ ENTRY(__clone) 2: /* terminate the stack frame */ mov #0, r14 -#ifdef RESET_PID - mov r4, r0 - shlr16 r0 - tst #1, r0 // CLONE_THREAD = (1 << 16) - bf/s 4f - mov r4, r0 - /* new pid */ - shlr8 r0 - tst #1, r0 // CLONE_VM = (1 << 8) - bf/s 3f - mov #-1, r0 - mov #+SYS_ify(getpid), r3 - trapa #0x15 -3: - stc gbr, r1 - mov.w .Lpidoff, r2 - add r1, r2 - mov.l r0, @r2 - mov.w .Ltidoff, r2 - add r1, r2 - mov.l r0, @r2 -4: -#endif + /* thread starts */ mov.l @r15, r1 jsr @r1 @@ -138,12 +114,6 @@ ENTRY(__clone) .long _GLOBAL_OFFSET_TABLE_ .L3: .long PLTJMP(C_SYMBOL_NAME(_exit)) -#ifdef RESET_PID -.Lpidoff: - .word PID - TLS_PRE_TCB_SIZE -.Ltidoff: - .word TID - TLS_PRE_TCB_SIZE -#endif -PSEUDO_END (__clone) +PSEUDO_END (__clone) weak_alias (__clone, clone) diff --git a/libc/sysdeps/linux/sparc/Makefile.arch b/libc/sysdeps/linux/sparc/Makefile.arch index 92ea7d93f..be393b832 100644 --- a/libc/sysdeps/linux/sparc/Makefile.arch +++ b/libc/sysdeps/linux/sparc/Makefile.arch @@ -6,12 +6,8 @@ # CSRC-y := brk.c __syscall_error.c sigaction.c - -SSRC-y := \ - __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ - syscall.S urem.S udiv.S umul.S sdiv.S rem.S pipe.S - -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += fork.S vfork.S clone.S +SSRC-y := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ + syscall.S urem.S udiv.S umul.S sdiv.S rem.S pipe.S fork.S vfork.S clone.S CSRC-$(UCLIBC_HAS_CONTEXT_FUNCS) += makecontext.c SSRC-$(UCLIBC_HAS_CONTEXT_FUNCS) += getcontext.S setcontext.S swapcontext.S diff --git a/libc/sysdeps/linux/sparc/clone.S b/libc/sysdeps/linux/sparc/clone.S index 1d0e3e6e1..3ee88da78 100644 --- a/libc/sysdeps/linux/sparc/clone.S +++ b/libc/sysdeps/linux/sparc/clone.S @@ -22,9 +22,6 @@ #include <asm/errno.h> #include <asm/unistd.h> -#ifdef RESET_PID -#include <tcb-offsets.h> -#endif #include <sysdep.h> #define CLONE_VM 0x00000100 @@ -83,20 +80,6 @@ END(__clone) .type __thread_start,@function __thread_start: -#ifdef RESET_PID - sethi %hi(CLONE_THREAD), %l0 - andcc %g4, %l0, %g0 - bne 1f - andcc %g4, CLONE_VM, %g0 - bne,a 2f - mov -1,%o0 - set __NR_getpid,%g1 - ta 0x10 -2: - st %o0,[%g7 + PID] - st %o0,[%g7 + TID] -1: -#endif mov %g0, %fp /* terminate backtrace */ call %g2 mov %g3,%o0 diff --git a/libc/sysdeps/linux/sparc/vfork.S b/libc/sysdeps/linux/sparc/vfork.S index e5a3c303d..5b05e6476 100644 --- a/libc/sysdeps/linux/sparc/vfork.S +++ b/libc/sysdeps/linux/sparc/vfork.S @@ -16,8 +16,6 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -/* Code taken from glibc2.2.2/sysdeps/unix/sysv/linux/sparc/vfork.S */ - #include <sys/syscall.h> #ifndef __NR_vfork diff --git a/libc/sysdeps/linux/x86_64/Makefile.arch b/libc/sysdeps/linux/x86_64/Makefile.arch index 2bc838f0e..d84e43daa 100644 --- a/libc/sysdeps/linux/x86_64/Makefile.arch +++ b/libc/sysdeps/linux/x86_64/Makefile.arch @@ -6,11 +6,9 @@ # CSRC-y := brk.c __syscall_error.c sigaction.c +SSRC-y := __longjmp.S setjmp.S syscall.S bsd-setjmp.S bsd-_setjmp.S \ + vfork.S clone.S -SSRC-y := \ - __longjmp.S setjmp.S syscall.S bsd-setjmp.S bsd-_setjmp.S - -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += vfork.S clone.S ARCH_OBJ_FILTEROUT-$(UCLIBC_LINUX_SPECIFIC) := sched_getcpu.c ifeq ($(UCLIBC_LINUX_SPECIFIC),y) SSRC-$(UCLIBC_HAS_TLS) += sched_getcpu.S diff --git a/libc/sysdeps/linux/x86_64/clone.S b/libc/sysdeps/linux/x86_64/clone.S index 374504140..3dda8da02 100644 --- a/libc/sysdeps/linux/x86_64/clone.S +++ b/libc/sysdeps/linux/x86_64/clone.S @@ -89,19 +89,6 @@ clone: the outermost frame obviously. */ xorl %ebp, %ebp -#ifdef RESET_PID - testq $CLONE_THREAD, %rdi - jne 1f - testq $CLONE_VM, %rdi - movl $-1, %eax - jne 2f - movl $__NR_getpid, %eax - syscall -2: movl %eax, %fs:PID - movl %eax, %fs:TID -1: -#endif - /* Set up arguments for the function call. */ popq %rax /* Function to call. */ popq %rdi /* Argument. */ diff --git a/libc/sysdeps/linux/x86_64/vfork.S b/libc/sysdeps/linux/x86_64/vfork.S index a8a2f6e4b..8e096bc3e 100644 --- a/libc/sysdeps/linux/x86_64/vfork.S +++ b/libc/sysdeps/linux/x86_64/vfork.S @@ -38,10 +38,6 @@ __vfork: is preserved by the syscall and that we're allowed to destroy. */ popq %rdi -#ifdef SAVE_PID - SAVE_PID -#endif - /* Stuff the syscall number in RAX and enter into the kernel. */ movl $__NR_vfork, %eax syscall @@ -49,10 +45,6 @@ __vfork: /* Push back the return PC. */ pushq %rdi -#ifdef RESTORE_PID - RESTORE_PID -#endif - cmpl $-4095, %eax jae __syscall_error /* Branch forward if it failed. */ diff --git a/libc/sysdeps/linux/xtensa/Makefile.arch b/libc/sysdeps/linux/xtensa/Makefile.arch index b9b6b87d5..23cd08ee5 100644 --- a/libc/sysdeps/linux/xtensa/Makefile.arch +++ b/libc/sysdeps/linux/xtensa/Makefile.arch @@ -6,9 +6,7 @@ # CSRC-y := brk.c sigaction.c __syscall_error.c - SSRC-y := bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S \ - sigrestorer.S syscall.S mmap.S windowspill.S __longjmp.S vfork.S + sigrestorer.S syscall.S mmap.S windowspill.S __longjmp.S vfork.S CSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += fork.c -SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += clone.S diff --git a/libc/sysdeps/linux/xtensa/clone.S b/libc/sysdeps/linux/xtensa/clone.S index efdfcdd5e..913ec5a5f 100644 --- a/libc/sysdeps/linux/xtensa/clone.S +++ b/libc/sysdeps/linux/xtensa/clone.S @@ -21,9 +21,6 @@ #include <sysdep.h> #define _ERRNO_H 1 #include <bits/errno.h> -#ifdef RESET_PID -#include <tls.h> -#endif #define __ASSEMBLY__ #include <linux/sched.h> @@ -76,21 +73,6 @@ ENTRY (__clone) # error invalid values for CLONE_THREAD or CLONE_VM #endif -#ifdef RESET_PID - bbsi.l a6, 16, .Lskip_restore_pid /* CLONE_THREAD = 0x00010000 */ - movi a2, -1 - bbsi a6, 8, .Lgotpid /* CLONE_VM = 0x00000100 */ - movi a2, SYS_ify(getpid) - syscall -.Lgotpid: - rur a3, threadptr - movi a0, TLS_PRE_TCB_SIZE - sub a3, a3, a0 - s32i a2, a3, PID - s32i a2, a3, TID -.Lskip_restore_pid: -#endif - /* start child thread */ movi a0, 0 /* terminate the stack frame */ @@ -115,5 +97,4 @@ ENTRY (__clone) #endif PSEUDO_END (__clone) - weak_alias (__clone, clone) diff --git a/libc/sysdeps/linux/xtensa/vfork.S b/libc/sysdeps/linux/xtensa/vfork.S index 8058fb057..140ab775e 100644 --- a/libc/sysdeps/linux/xtensa/vfork.S +++ b/libc/sysdeps/linux/xtensa/vfork.S @@ -34,16 +34,6 @@ */ -#ifndef SAVE_PID -#define SAVE_PID(a,b,c,d) -#endif -#ifndef RESTORE_PID -#define RESTORE_PID(a,b,c) -#endif -#ifndef RESTORE_PID12 -#define RESTORE_PID12(a,b,c) -#endif - /* pid_t vfork(void); Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) @@ -73,8 +63,6 @@ HIDDEN_ENTRY (__vfork) .L4: mov a12, a2 mov a13, a3 - SAVE_PID(a5,a15,a2,a3) - /* use syscall 'clone' and set new stack pointer to the same address */ movi a2, SYS_ify(clone) @@ -83,8 +71,6 @@ HIDDEN_ENTRY (__vfork) syscall - RESTORE_PID(a5,a15,a2) - movi a5, -4096 mov a6, a2 @@ -102,16 +88,12 @@ HIDDEN_ENTRY (__vfork) mov a13, a3 mov a14, a6 - SAVE_PID(a9,a15,a2,a3) - movi a2, SYS_ify(clone) movi a3, 0 movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD syscall - RESTORE_PID(a9,a15,a2) - movi a9, -4096 mov a10, a2 @@ -131,16 +113,12 @@ HIDDEN_ENTRY (__vfork) mov a13, a3 mov a14, a6 - SAVE_PID (a2,a3,a2,a6) - movi a2, SYS_ify(clone) movi a3, 0 movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD syscall - RESTORE_PID12(a3,a6,a15) - mov a3, a13 movi a13, -4096 @@ -168,7 +146,6 @@ HIDDEN_ENTRY (__vfork) .Lpseudo_end: retw #elif defined(__XTENSA_CALL0_ABI__) - SAVE_PID(a5, a8, a3, a4) /* Use syscall 'clone'. Set new stack pointer to the same address. */ movi a2, SYS_ify (clone) @@ -176,8 +153,6 @@ HIDDEN_ENTRY (__vfork) movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD syscall - RESTORE_PID(a5, a8, a2) - movi a3, -4096 bgeu a2, a3, 1f ret |