From 0501d6036744d44cad6d5a6eda8090ddfbe604c4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 24 May 1997 02:30:09 +0000 Subject: Update. 1997-05-24 03:51 Ulrich Drepper * stdlib/Makefile (routines): Add strtol_l, strtoul_l, strtoll_l, strtoull_l, strtof_l, strtod_l, and strtold_l. * stdlib/stdlib.h: Add prototypes for new functions. * stdlib/strtod.c: Change for compiling as strtoX_l. * stdlib/strtol.c: Likewise. * stdlib/strtof.c: Likewise. * stdlib/strtold.c: Likewise. * stdlib/strtod_l.c: New file. * stdlib/strtof_l.c: New file. * stdlib/strtold_l.c: New file. * stdlib/strtol_l.c: New file. * stdlib/strtoul_l.c: New file. * stdlib/strtoll_l.c: New file. * stdlib/strtoull_l.c: New file. * string/Makefile (routines): Add strcasecmp_l and strncase_l. * string/string.h: Add prototypes for new functions. * sysdeps/generic/strcasecmp.c: Change for compiling as strcasecmp_l. * sysdeps/generic/strncase.c: Change for compiling as strncasecmp_l. * sysdeps/generic/strcasecmp_l.c: New file. * sysdeps/generic/strncase_l.c: New file. * wcsmbs/Makefile (routines): Add wcstol_l, wcstoul_l, wcstoll_l, wcstoull_l, wcstod_l, wcstold_l, wcstof_l, wcscasecmp_l, and wcsncase_l. * wcsmbs/wchar.h: Add prototypes for new functions. * wcsmbs/wcscasecmp.c: Change for compiling as wcscasecmp_l. * wcsmbs/wcsncase.c: Change for compiling as wcsncasecmp_l. * wcsmbs/wcscasecmp_l.c: New file. * wcsmbs/wcsncase_l.c: New file. * wcsmbs/wcstof.c: Change for compiling as wcstof_l.c * wcsmbs/wcstold.c: Change for compiling as wcstold_l.c * wcsmcs/wcstod_l.c: New file. * wcsmcs/wcstof_l.c: New file. * wcsmcs/wcstold_l.c: New file. * wcsmcs/wcstol_l.c: New file. * wcsmcs/wcstoul_l.c: New file. * wcsmcs/wcstoll_l.c: New file. * wcsmcs/wcstoull_l.c: New file. * Makeconfig (binfmt-subdir): New variable. Set to `elf' if $(elf) is defined. More to come later when other binary formats are supported. * Makefile (subdirs): Remove elf. Add $(binfmt-subdir). Suggested by Philip Blundell. * stdlib/Makefile (headers): Add fmtmsg.h. (routines): Add fmtmsg. * stdlib/fmtmsg.c: New file. * stdlib/fmtmsg.h: New file. * manual/stdio.texi: Add description of fmtmsg and addseverity. * manual/examples/fmtmsgexpl.c: Example program for fmtmsg documentation. 1997-05-23 15:26 Philip Blundell * resolv/res_query.c (res_querydomain): Avoid potential buffer overrun. Reported by Dan A. Dickey . 1997-05-22 18:36 Thomas Bushnell, n/BSG * elf/dl-support.c (_dl_sysdep_open_zero_fill, _dl_sysdep_read_whole_file): Moved functions to ... * elf/dl-misc.c: This new file. * sysdeps/generic/dl-sysdepio.c: Delete file and move functions... * elf/dl-misc.c: ... here. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_open_zero_fill, _dl_sysdep_read_whole_file): Delete functions; they now come from elf/dl-misc.c (dl-support.c had contained identical versions). * sysdeps/mach/hurd/dl-sysdepio.c: Delete file; move functions... * sysdeps/mach/hurd/dl-sysdep.c: ... here, but mark them weak so that the regular ones in dl-misc work once we've initialized. * elf/Makefile (dl-routines): Remove dl-sysdepio.c. Add dl-misc.c. 1997-05-22 21:55 Philip Blundell * inet/Makefile (headers): Add netinet/inbits.h. * inet/netinet/in.h: New file. * sysdeps/generic/netinet/inbits.h: Likewise. * sysdeps/unix/sysv/linux/netinet/inbits.h: Likewise. * sysdeps/generic/netinet/ip6.h: Move to... * inet/netinet/ip6.h: ... here. * sysdeps/generic/netinet/icmp6.h: Move to... * inet/netinet/icmp6.h: ... here. * sysdeps/unix/sysv/linux/netinet/in.h: Remove. * sysdeps/generic/netinet/in.h: Remove. 1997-05-22 05:40 Richard Henderson * sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): If we are not looking at the new thread-safe .plt, don't be lazy about relocs. (_dl_runtime_resolve): Fix up arithmetic for new .plt layout. (elf_alpha_fix_plt): Insert wmb as appropriate to ensure safety. * elf/dynamic-link.h (ELF_DYNAMIC_RELOCATE): Let elf_machine_runtime_setup() decide if we can actually be lazy. * elf/rtld.c (_dl_start): So don't call it. * elf/dl-reloc.c (_dl_relocate_object): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Return lazy. * sysdeps/m68k/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/mips/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/powerpc/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/sparc/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/stub/dl-machine.h (elf_machine_runtime_setup): Update skeleton definition. 1997-05-22 18:45 Ulrich Drepper * sysdeps/i386/fpu/__math.h (logb): Remove second value placed on stack by fxtract. 1997-05-22 13:07 Andreas Jaeger * sunrpc/rpcsvc/rusers.x: Provide and correct prototypes, add cast to (xdrproc_t) where necessary to prevent warnings. 1997-05-22 12:18 Ulrich Drepper * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Remove I/O functions. * sunrpc/rpcinfo.c (get_inet_address): Use INADDR_NONE and INADDR_ANY * sysdeps/libm-ieee754/s_cexp.c: Fix typo: string_alias -> * nss/XXX-lookup.c: Add missing explanation. --- sysdeps/alpha/dl-machine.h | 34 +++++++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 9 deletions(-) (limited to 'sysdeps/alpha') diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h index 7a51df5f00..49d6830a65 100644 --- a/sysdeps/alpha/dl-machine.h +++ b/sysdeps/alpha/dl-machine.h @@ -86,7 +86,7 @@ elf_machine_load_address (void) /* Set up the loaded object described by L so its unrelocated PLT entries will jump to the on-demand fixup code in dl-runtime.c. */ -static inline void +static inline int elf_machine_runtime_setup (struct link_map *l, int lazy) { Elf64_Addr plt; @@ -104,7 +104,13 @@ elf_machine_runtime_setup (struct link_map *l, int lazy) /* Identify this shared object */ *(Elf64_Addr *)(plt + 24) = (Elf64_Addr) l; + + /* If the first instruction of the plt entry is not + "br $28, plt0", we cannot do lazy relocation. */ + lazy = (*(unsigned *)(plt + 32) == 0xc39ffff7); } + + return lazy; } /* This code is used in dl-runtime.c to call the `fixup' function @@ -145,9 +151,11 @@ _dl_runtime_resolve: .prologue 1 /* Set up the arguments for _dl_runtime_resolve. */ /* $16 = link_map out of plt0 */ + /* $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 */ + subq $28, $27, $17 ldq $16, 8($27) - /* $17 = offset of reloc entry */ - mov $28, $17 + subq $17, 20, $17 + addq $17, $17, $17 /* Do the fixup */ bsr $26, fixup..ng /* Move the destination address into position. */ @@ -290,14 +298,18 @@ elf_alpha_fix_plt(struct link_map *l, lo = (short)hi; hi = (hi - lo) >> 16; - /* Emit "ldah $27,H($27)" */ - plte[0] = 0x277b0000 | (hi & 0xffff); - /* Emit "lda $27,L($27)" */ plte[1] = 0x237b0000 | (lo & 0xffff); /* Emit "br $31,function" */ plte[2] = 0xc3e00000 | (edisp & 0x1fffff); + + /* Think about thread-safety -- the previous instructions must be + committed to memory before the first is overwritten. */ + __asm__ __volatile__("wmb" : : : "memory"); + + /* Emit "ldah $27,H($27)" */ + plte[0] = 0x277b0000 | (hi & 0xffff); } else { @@ -310,14 +322,18 @@ elf_alpha_fix_plt(struct link_map *l, lo = (short)hi; hi = (hi - lo) >> 16; - /* Emit "ldah $27,H($27)" */ - plte[0] = 0x277b0000 | (hi & 0xffff); - /* Emit "ldq $27,L($27)" */ plte[1] = 0xa77b0000 | (lo & 0xffff); /* Emit "jmp $31,($27)" */ plte[2] = 0x6bfb0000; + + /* Think about thread-safety -- the previous instructions must be + committed to memory before the first is overwritten. */ + __asm__ __volatile__("wmb" : : : "memory"); + + /* Emit "ldah $27,H($27)" */ + plte[0] = 0x277b0000 | (hi & 0xffff); } /* At this point, if we've been doing runtime resolution, Icache is dirty. -- cgit v1.2.3