search for: movem

...================== +--- klibc-1.5.21.orig/usr/klibc/arch/m68k/syscall.S 2011-01-29 13:28:39.000000000 +0100 ++++ klibc-1.5.21/usr/klibc/arch/m68k/syscall.S 2011-01-29 15:47:09.000000000 +0100 +@@ -11,17 +11,47 @@ + .globl __syscall_common + .type __syscall_common, @function + __syscall_common: +- movem.l %d2-%d6, -(%sp) /* 5 registers saved */ +- movem.l 24(%sp), %d1-%d6 ++#if 0 ++ /* debugging: define "int32_t last_syscall;" in your code... */ ++ move.l %d0, (last_syscall) /* to see which is actually run */ ++#endif ++ /* ++ * According to eglibc, separate moves are faster than movem;...

...), 17 deletions(-) diff --git a/usr/klibc/arch/m68k/syscall.S b/usr/klibc/arch/m68k/syscall.S index 966c92d..f468678 100644 --- a/usr/klibc/arch/m68k/syscall.S +++ b/usr/klibc/arch/m68k/syscall.S @@ -11,17 +11,43 @@ .globl __syscall_common .type __syscall_common, @function __syscall_common: - movem.l %d2-%d6, -(%sp) /* 5 registers saved */ - movem.l 24(%sp), %d1-%d6 + /* + * According to eglibc, separate moves are faster than movem; + * speed is important and this code is not duplicated anyway, + * so we do the same here. We use %a1 as scratch register for + * saving; syscall arguments ar...

...jmp_buf is assumed to contain the following, in order: +# %d2..%d7 +# %a2..%a7 +# return address +# + + .text + .align 2 + .globl setjmp + .type setjmp, @function +setjmp: + move.l (%sp)+, %d0 | Return address + movea.l (%sp), %a0 | Buffer address + | Postincrement mode is not permitted here... + movem.l %d2-%d7/%a2-%a7, (%a0) + move.l %d0, 48(%a0) | Return address + move.l %d0, -(%sp) | Restore return address + clr.l %d0 | Return value + movea.l %d0, %a0 | Redundant return... + rts + + .size setjmp,.-setjmp + + .text + .align 2 + .globl longjmp + .type longjmp, @function +longjmp: + move.l...

Hi, after a year, I decided to hack on klibc again. I?ve reworked both the patch to add mkstemp(), discussing to use AT_RANDOM as cheap entropy source on IRC (if there will ever be another entropy consumer, I can quickly write a minimal arc4random() seeded from it, as it has only 16 octets), capable of making a working mksh (static and shared) on amd64/xen, and the m68k support code, leading to

Hi, I?ve gone through the mailing list archives and hereby want to resubmit my pending patches. Most are independent of each other, except the m68k patch which will only be complete if sigsuspend is also fixed. (It can be applied before that, though.) http://www.zytor.com/pipermail/klibc/2012-January/003173.html [PATCH] fix m68k support Resubmitted here as 0005. While there was a question from

....S @@ -0,0 +1,37 @@ +# +# arch/cris/setjmp.S +# +# setjmp/longjmp for the cris architecture +# + +# +# The jmp_buf is assumed to contain the following, in order: +# $r8..$r0 (in that order) +# $sp ($r14) +# return address +# + + .text + .balign 4 + .globl setjmp + .type setjmp, @function +setjmp: + movem $r8,[$r10+] /* Save $r8..$r0 at $r10... */ + move.d $sp,[$r10+] + move $srp,[$r10] + ret + moveq 0,$r10 + + .size setjmp,.-setjmp + + .text + .balign 4 + .globl longjmp + .type longjmp, @function +longjmp: + movem [$r10+],$r8 /* Load $r8..$r0 from $r10... */ + move.d [$r10+],$sp + jump [$r10] +...

...ll @@ -1,37 +0,0 @@ -# -# arch/cris/setjmp.S -# -# setjmp/longjmp for the cris architecture -# - -# -# The jmp_buf is assumed to contain the following, in order: -# $r8..$r0 (in that order) -# $sp ($r14) -# return address -# - - .text - .balign 4 - .globl setjmp - .type setjmp, @function -setjmp: - movem $r8,[$r10+] /* Save $r8..$r0 at $r10... */ - move.d $sp,[$r10+] - move $srp,[$r10] - ret - moveq 0,$r10 - - .size setjmp,.-setjmp - - .text - .balign 4 - .globl longjmp - .type longjmp, @function -longjmp: - movem [$r10+],$r8 /* Load $r8..$r0 from $r10... */ - move.d [$r10+],$sp - jump [$r10] -...

...ch/cris/setjmp.S --- ./klibc/arch/cris/setjmp.S Thu Jun 10 20:31:54 2004 +++ ../klibc-0.146-modified/klibc/arch/cris/setjmp.S Wed Jun 23 09:59:57 2004 @@ -13,25 +13,25 @@ .text .balign 4 - .globl _setjmp - .type _setjmp, @function -_setjmp: + .globl setjmp + .type setjmp, @function +setjmp: movem $r8,[$r10+] /* Save $r8..$r0 at $r10... */ move.d $sp,[$r10+] move $srp,[$r10] ret moveq 0,$r10 - .size _setjmp,.-_setjmp + .size setjmp,.-setjmp .text .balign 4 - .globl _longjmp - .type _longjmp, @function -_longjmp: + .globl longjmp + .type longjmp, @function +longjmp: movem...

I have updated the klibc patchset based on feedback received. In particular, the patchset has been reorganized so as not to break git-bisect. Additionally, this updates the patch base to 2.6.17-git12 (d38b69689c349f35502b92e20dafb30c62d49d63) and klibc 1.4.8; the main difference on the klibc side is removal of obsolete code. This is also available as a git tree at: