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author | Ulrich Drepper <drepper@redhat.com> | 2000-11-10 04:15:55 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-11-10 04:15:55 +0000 |
commit | 85599e53cdba552f3b288b9e79c26592da11263b (patch) | |
tree | 9f2726a666de57e0d70929a728284dfa5dbf5b6d /sysdeps/unix/sysv/linux/s390/mmap.S | |
parent | bb5a22b34a609e2e995ece3c6d5025b950c68f4e (diff) | |
download | glibc-85599e53cdba552f3b288b9e79c26592da11263b.tar.gz glibc-85599e53cdba552f3b288b9e79c26592da11263b.tar.xz glibc-85599e53cdba552f3b288b9e79c26592da11263b.zip |
Update.
2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Clean-up: define family to hold target family. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Loosen protocol check to ease raw socket creation. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Ensure to fill ai_socktype and ai_protocol by internal table if service was not given. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Don't raise an error even if numerical port was specified with protocol without socktype. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Ensure to check if protocol is ok. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * inet/getnameinfo.c: getnameinfo() NI_xxx flag validation. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * sysdeps/posix/getaddrinfo.c: Ensure not to fill garbage value in sin6_scope_id field. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * inet/getnameinfo.c: Repair getnameinfo() sin6_socpe_id support. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * inet/getnameinfo.c: Repair NI_NOFQDN flag support. 2000-11-06 Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> * inet/getnameinfo.c: Wake-up sin6_scope_id support in getnameinfo(): check for whether sin6_socpe_id exist was wrong. 2000-11-09 Martin Schwidefsky <mschwide@nc.boeblingen.de.ibm.com> * sysdeps/unix/sysv/linux/s390/mmap.S: Use mmap2 if it is present. * sysdeps/unix/sysv/linux/s390/mmap64.S: New file.
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/mmap.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/mmap.S | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/mmap.S b/sysdeps/unix/sysv/linux/s390/mmap.S index 0ba58ccf82..f9650e9f03 100644 --- a/sysdeps/unix/sysv/linux/s390/mmap.S +++ b/sysdeps/unix/sysv/linux/s390/mmap.S @@ -19,33 +19,45 @@ #include <sysdep.h> - .text +#define EINVAL 22 + .text ENTRY(__mmap) /* Save registers and setup stack frame. */ stm %r6,%r15,24(%r15) lr %r1,%r15 - l %r0,4(0,%r15) /* load eos */ ahi %r15,-120 /* buy stack space */ - st %r1,0(0,%r15) /* store back chain */ - st %r0,4(0,%r15) /* store eos */ + st %r1,0(%r15) /* store back chain */ - /* Store parameters on stack, because old_mmap - * takes only one parameter: a pointer to the parameter area + /* Store parameters on stack, because old_mmap/mmap2 + * take only one parameter: a pointer to the parameter area */ - mvc 0x74(4,%r15),216(%r15) /* move 'offset' */ - st %r6,0x70(0,%r15) /* store 'fd' */ - st %r5,0x6C(0,%r15) /* store 'flags' */ - st %r4,0x68(0,%r15) /* store 'prot' */ - st %r3,0x64(0,%r15) /* store 'length' */ - st %r2,0x60(0,%r15) /* store 'start' */ - - la %r2,0x60(0,%r15) /* load address of parameter list */ - /* Do the system call trap. */ - svc SYS_ify(mmap) - - l %r15,0(0,%r15) /* load back chain */ - lm %r6,%r15,24(%r15) /* load registers */ + st %r6,0x70(%r15) /* Store 'fd'. */ + st %r5,0x6C(%r15) /* Store 'flags'. */ + st %r4,0x68(%r15) /* Store 'prot'. */ + st %r3,0x64(%r15) /* Store 'length'. */ + st %r2,0x60(%r15) /* Store 'start'. */ + l %r1,216(%r15) /* Load offset. */ + +#ifdef __ASSUME_MMAP2_SYSCALL + /* I don't think it is worthwhile trying to use mmap2 whenever + * it is available. Only use it when we are sure the syscall + * exists. */ + tml %r1,0x0fff /* Offset page aligned ? */ + lhi %r2,-EINVAL + jnz 1f /* No -> EINVAL. */ + srl %r1,12 /* mmap2 takes the offset in pages. */ + st %r1,0x74(%r15) /* Store page offset. */ + la %r2,0x60(%r15) /* Load address of parameter list. */ + svc SYS_ify(mmap2) /* Do the system call trap. */ +#else + st %r1,0x74(%r15) /* Store offset unmodified. */ + la %r2,0x60(%r15) /* Load address of parameter list. */ + svc SYS_ify(mmap) /* Do the system call trap. */ +#endif + +1: l %r15,0(%r15) /* Load back chain. */ + lm %r6,%r15,24(%r15) /* Load registers. */ /* check gpr 2 for error */ lhi %r0,-4096 |