diff options
author | Ulrich Drepper <drepper@redhat.com> | 2003-02-01 20:53:16 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2003-02-01 20:53:16 +0000 |
commit | 38e68573bc08179bb9418038e7c2db7e576eaea5 (patch) | |
tree | fac3119a1783cc465b6ff578da410897c4163c00 /sysdeps/unix/sysv/linux | |
parent | 4a7d6545ce1611c0a320f3210d46d5bd3a03b260 (diff) | |
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Update.
2003-02-01 Ulrich Drepper <drepper@redhat.com>
* time/tzfile.c (__tzfile_compute): Change return value type to
void. Adjust return statements.
* include/time.h (__tzfile_compute): Adjust prototype.
2003-02-01 Jim Meyering <jim@meyering.net>
* time/tzset.c (__tz_convert): Remove dead code; __tzfile_compute
always returns 1.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c
[!__ASSUME_NEW_PRCTL_SYSCALL]: Noop prctl syscall and set ENOSYS.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Generate ENOSYS stub.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
[!__ASSUME_NEW_RT_SIGRETURN_SYSCALL]: Likewise.
2003-01-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/unix/sysv/linux/configure.in: Change arch_minimum_kernel
back to 2.4.19 for powerpc64.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_NEW_PRCTL_SYSCALL): Define for powerpc64.
(__ASSUME_NEW_RT_SIGRETURN_SYSCALL): Define for powerpc64.
2003-02-01 Ulrich Drepper <drepper@redhat.com>
* wcsmbs/wcscpy.c (wcscpy): Add alternative implementation for
platforms with strange alignment requirements on wchar_t.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
-rw-r--r-- | sysdeps/unix/sysv/linux/configure.in | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/kernel-features.h | 13 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c | 5 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S | 14 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S | 16 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S | 18 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S | 18 |
7 files changed, 81 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in index 7947743f1a..462965f4f6 100644 --- a/sysdeps/unix/sysv/linux/configure.in +++ b/sysdeps/unix/sysv/linux/configure.in @@ -80,7 +80,7 @@ case "$machine" in arch_minimum_kernel=2.0.10 ;; powerpc/powerpc64) - arch_minimum_kernel=2.4.21 + arch_minimum_kernel=2.4.19 ;; s390/s390-32) libc_cv_gcc_unwind_find_fde=yes diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index 3159dd1ada..45cd3e59c8 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -210,6 +210,19 @@ # define __ASSUME_MMAP2_SYSCALL 1 #endif +/* Starting with 2.4.21 PowerPC64 implements the new prctl syscall. + This allows applications to get/set the Floating Point Exception Mode. */ +#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__ +# define __ASSUME_NEW_PRCTL_SYSCALL 1 +#endif + +/* Starting with 2.4.21 PowerPC64 implements the new rt_sigreturn syscall. + The new rt_sigreturn takes an ucontext pointer allowing rt_sigreturn + to be used in the set/swapcontext implementation. */ +#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__ +# define __ASSUME_NEW_RT_SIGRETURN_SYSCALL 1 +#endif + /* On x86, the set_thread_area syscall was introduced in 2.5.29, but its semantics was changed in 2.5.30, and again after 2.5.31. */ #if __LINUX_KERNEL_VERSION >= 132384 && defined __i386__ diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c index 16619cddd2..6a0a82c703 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fe_nomask.c @@ -26,8 +26,11 @@ const fenv_t * __fe_nomask_env (void) { +#ifdef __ASSUME_NEW_PRCTL_SYSCALL INTERNAL_SYSCALL_DECL (err); INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE); - +#else + __set_errno (ENOSYS); +#endif return FE_ENABLED_ENV; } diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S index 59dfb82ef5..ddbf40b8d9 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S @@ -21,9 +21,11 @@ #define __ASSEMBLY__ #include <asm/ptrace.h> +#include <asm/errno.h> #include "ucontext_i.h" ENTRY(__getcontext) +#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3) std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3) mflr r0 @@ -126,8 +128,18 @@ ENTRY(__getcontext) addi r5,r3,UCONTEXT_SIGMASK li r4,0 li r3,SIG_BLOCK - bl .sigprocmask + bl JUMPTARGET(sigprocmask) nop +#else + /* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */ + mflr r0 + std r0,FRAME_LR_SAVE(r1) + stdu r1,-128(r1) + li r3,ENOSYS + bl JUMPTARGET(__syscall_error) + nop + li r3,-1 +#endif ld r0,128+FRAME_LR_SAVE(r1) addi r1,r1,128 diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S index 29dd17ffe4..08ce90177b 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S @@ -22,8 +22,10 @@ #define __ASSEMBLY__ #include <asm/ptrace.h> #include "ucontext_i.h" +#include <asm/errno.h> ENTRY(__makecontext) +#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL /* Save parameters into the parameter save area of callers frame. */ std r3,FRAME_PARM1_SAVE(r1) /* ucontext_t *ucp */ std r4,FRAME_PARM2_SAVE(r1) /* void (*func)(void) */ @@ -156,6 +158,20 @@ L(gotexitcodeaddr): addi r1,r1,128 mtlr r0 blr +#else + /* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */ + mflr r0 + std r0,FRAME_LR_SAVE(r1) + stdu r1,-128(r1) + li r3,ENOSYS + bl JUMPTARGET(__syscall_error) + nop + li r3,-1 + ld r0,128+FRAME_LR_SAVE(r1) + addi r1,r1,128 + mtlr r0 + blr +#endif END(__makecontext) weak_alias(__makecontext, makecontext) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S index d503cbbf3e..fa37abd6da 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S @@ -22,8 +22,10 @@ #define __ASSEMBLY__ #include <asm/ptrace.h> #include "ucontext_i.h" +#include <asm/errno.h> ENTRY(__setcontext) +#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL mflr r0 std r31,-8(1) std r0,FRAME_LR_SAVE(r1) @@ -47,7 +49,7 @@ ENTRY(__setcontext) li r5,0 addi r4,r3,UCONTEXT_SIGMASK li r3,SIG_SETMASK - bl .sigprocmask + bl JUMPTARGET(sigprocmask) nop cmpdi r3,0 bne L(error_exit) @@ -156,6 +158,20 @@ L(do_sigret): li r0,SYS_ify(rt_sigreturn) sc /* No return. */ +#else + /* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */ + mflr r0 + std r0,FRAME_LR_SAVE(r1) + stdu r1,-128(r1) + li r3,ENOSYS + bl JUMPTARGET(__syscall_error) + nop + li r3,-1 + ld r0,128+FRAME_LR_SAVE(r1) + addi r1,r1,128 + mtlr r0 + blr +#endif PSEUDO_END(__setcontext) diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S index 23422fb948..b1bcd44af1 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S @@ -22,8 +22,10 @@ #define __ASSEMBLY__ #include <asm/ptrace.h> #include "ucontext_i.h" +#include <asm/errno.h> ENTRY(__swapcontext) +#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3) std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3) mflr r0 @@ -128,7 +130,7 @@ ENTRY(__swapcontext) addi r5,r3,UCONTEXT_SIGMASK addi r4,r4,UCONTEXT_SIGMASK li r3,SIG_SETMASK - bl .sigprocmask + bl JUMPTARGET(sigprocmask) nop cmpdi r3,0 bne L(error_exit) @@ -251,6 +253,20 @@ L(do_sigret): li r0,SYS_ify(rt_sigreturn) sc /* No return. */ +#else + /* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */ + mflr r0 + std r0,FRAME_LR_SAVE(r1) + stdu r1,-128(r1) + li r3,ENOSYS + bl JUMPTARGET(__syscall_error) + nop + li r3,-1 + ld r0,128+FRAME_LR_SAVE(r1) + addi r1,r1,128 + mtlr r0 + blr +#endif PSEUDO_END(__swapcontext) |