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author | Ulrich Drepper <drepper@redhat.com> | 1997-05-24 02:30:09 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-05-24 02:30:09 +0000 |
commit | 0501d6036744d44cad6d5a6eda8090ddfbe604c4 (patch) | |
tree | ac5de4474ab5209dd348b7442dac99d4547851af /sysdeps/alpha | |
parent | bfbc57545a197afff72572c3a6f0563023d553a5 (diff) | |
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Update.
1997-05-24 03:51 Ulrich Drepper <drepper@cygnus.com>
* 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 <pjb27@cam.ac.uk>
* resolv/res_query.c (res_querydomain): Avoid potential buffer
overrun. Reported by Dan A. Dickey <ddickey@transition.com>.
1997-05-22 18:36 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* 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 <pjb27@cam.ac.uk>
* 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 <rth@tamu.edu>
* 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 <drepper@cygnus.com>
* sysdeps/i386/fpu/__math.h (logb): Remove second value placed on
stack by fxtract.
1997-05-22 13:07 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* 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 <drepper@cygnus.com>
* 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.
Diffstat (limited to 'sysdeps/alpha')
-rw-r--r-- | sysdeps/alpha/dl-machine.h | 34 |
1 files changed, 25 insertions, 9 deletions
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. |