Fri Sep 1 16:16:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* libc-symbols.h (link_warning): Take new first arg SYMBOL; ask for a warning on references to that specific symbol, not the entire containing object file. (stub_warning): Pass symbol name to link_warning. * stdio/gets.c: Pass function name in link_warning invocation. * hurd/intr-msg.c: Treat apparent EINTR return from msg trap like MACH_SEND_INTERRUPTED. That indicates interrupt_operation was sent, but failed. * stdlib/msort.c: Include memcopy.h. (msort_with_tmp): If operating on aligned op_t words, use direct word fetches and stores. * sysdeps/i386/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC): Add missing backslash.
This commit is contained in:
Roland McGrath
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19
ChangeLog
19
ChangeLog
@ -1,3 +1,22 @@
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Fri Sep 1 16:16:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* libc-symbols.h (link_warning): Take new first arg SYMBOL; ask
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for a warning on references to that specific symbol, not the
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entire containing object file.
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(stub_warning): Pass symbol name to link_warning.
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* stdio/gets.c: Pass function name in link_warning invocation.
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* hurd/intr-msg.c: Treat apparent EINTR return from msg trap like
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MACH_SEND_INTERRUPTED. That indicates interrupt_operation was
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sent, but failed.
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* stdlib/msort.c: Include memcopy.h.
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(msort_with_tmp): If operating on aligned op_t words, use direct word
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fetches and stores.
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* sysdeps/i386/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC): Add
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missing backslash.
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Thu Aug 31 13:23:35 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* sysdeps/unix/i386/brk.S [PIC]: Set __curbrk through the GOT.
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@ -77,6 +77,7 @@ _hurd_intr_rpc_mach_msg (mach_msg_header_t *msg,
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goto interrupted;
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case MACH_SEND_INTERRUPTED: /* RPC didn't get out. */
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case EINTR: /* Server not cooperating with interrupt. */
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if (ss->intr_port != MACH_PORT_NULL)
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/* If this signal was for us and it should interrupt calls, the
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signal thread will have cleared SS->intr_port.
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@ -155,27 +155,27 @@ Cambridge, MA 02139, USA. */
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/* When the file using this macro is linked in, the linker
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will emit a warning message MSG. */
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/* When a reference to SYMBOL is encountered, the linker will emit a
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warning message MSG. */
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#ifdef HAVE_GNU_LD
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#ifdef HAVE_ELF
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#define link_warning(msg) \
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static const char __evoke_link_warning__[] \
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__attribute__ ((section (".gnu.warning"))) = msg;
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#define link_warning(symbol, msg) \
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static const char __evoke_link_warning_##symbol[] \
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__attribute__ ((section (".gnu.warning." #symbol))) = msg;
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#else
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#define link_warning(msg) \
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#define link_warning(symbol, msg) \
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asm(".stabs \"" msg "\",30,0,0,0\n" \
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".stabs \"__evoke_link_warning__\",1,0,0,0\n"\
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".stabs \"__evoke_link_warning__\",2,0,0,0\n");
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".stabs \"" __SYMBOL_PREFIX #symbol "\",1,0,0,0\n");
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#endif
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#else
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/* We will never be heard; they will all die horribly. */
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#define link_warning(msg)
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#define link_warning(symbol, msg)
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#endif
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/* A canned warning for sysdeps/stub functions. */
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#define stub_warning(name) \
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link_warning ("warning: " #name " is not implemented and will always fail")
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link_warning (name, \
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"warning: " #name " is not implemented and will always fail")
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/*
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@ -3040,7 +3040,7 @@ re_compile_fastmap (bufp)
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case at_dot:
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case after_dot:
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continue;
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#endif /* not emacs */
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#endif /* emacs */
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case no_op:
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@ -3279,6 +3279,17 @@ re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
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range = 1;
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}
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#ifdef emacs
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/* In a forward search for something that starts with \=.
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don't keep searching past point. */
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if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0)
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{
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range = PT - startpos;
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if (range <= 0)
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return -1;
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}
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#endif /* emacs */
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/* Update the fastmap now if not correct already. */
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if (fastmap && !bufp->fastmap_accurate)
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if (re_compile_fastmap (bufp) == -2)
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@ -4682,13 +4693,6 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
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if (PTR_CHAR_POS ((unsigned char *) d) <= point)
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goto fail;
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break;
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#if 0 /* not emacs19 */
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case at_dot:
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DEBUG_PRINT1 ("EXECUTING at_dot.\n");
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if (PTR_CHAR_POS ((unsigned char *) d) + 1 != point)
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goto fail;
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break;
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#endif /* not emacs19 */
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case syntaxspec:
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DEBUG_PRINT2 ("EXECUTING syntaxspec %d.\n", mcnt);
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@ -21,7 +21,8 @@ Cambridge, MA 02139, USA. */
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#include <errno.h>
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#include <string.h>
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link_warning ("the `gets' function is unreliable and should not be used.")
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link_warning (gets,
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"the `gets' function is unreliable and should not be used.")
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/* Read a newline-terminated string from stdin into S,
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removing the trailing newline. Return S or NULL. */
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@ -1,5 +1,5 @@
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/* msort -- an alternative to qsort, with an identical interface.
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Copyright (C) 1992 Free Software Foundation, Inc.
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Copyright (C) 1992, 1995 Free Software Foundation, Inc.
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Written by Mike Haertel, September 1988.
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This file is part of the GNU C Library.
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@ -22,11 +22,7 @@ Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stdlib.h>
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#include <string.h>
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#define MEMCPY(dst, src, s) \
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((s) == sizeof (int) \
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? (*(int *) (dst) = *(int *) (src), (dst)) \
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: memcpy (dst, src, s))
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#include <memcopy.h>
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static void
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DEFUN(msort_with_tmp, (b, n, s, cmp, t),
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@ -49,22 +45,38 @@ DEFUN(msort_with_tmp, (b, n, s, cmp, t),
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tmp = t;
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while (n1 > 0 && n2 > 0)
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{
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if ((*cmp) (b1, b2) <= 0)
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{
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MEMCPY (tmp, b1, s);
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b1 += s;
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--n1;
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}
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else
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{
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MEMCPY (tmp, b2, s);
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b2 += s;
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--n2;
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}
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tmp += s;
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}
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if (s == OPSIZ && (b1 - b2) % OPSIZ == 0)
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/* We are operating on aligned words. Use direct word stores. */
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while (n1 > 0 && n2 > 0)
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{
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if ((*cmp) (b1, b2) <= 0)
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{
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--n1;
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*((op_t *) tmp)++ = *((op_t *) b1)++;
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}
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else
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{
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--n2;
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*((op_t *) tmp)++ = *((op_t *) b2)++;
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}
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}
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else
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while (n1 > 0 && n2 > 0)
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{
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if ((*cmp) (b1, b2) <= 0)
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{
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memcpy (tmp, b1, s);
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b1 += s;
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--n1;
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}
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else
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{
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memcpy (tmp, b2, s);
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b2 += s;
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--n2;
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}
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tmp += s;
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}
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if (n1 > 0)
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memcpy (tmp, b1, n1 * s);
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memcpy (b, t, (n - n2) * s);
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@ -25,11 +25,11 @@ ENTRY (__longjmp)
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movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */
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movl 8(%esp), %eax /* Second argument is return value. */
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/* Restore registers. */
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movl JB_BX(%ecx), %ebx
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movl JB_SI(%ecx), %esi
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movl JB_DI(%ecx), %edi
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movl JB_BP(%ecx), %ebp
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movl JB_SP(%ecx), %esp
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movl (JB_BX*4)(%ecx), %ebx
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movl (JB_SI*4)(%ecx), %esi
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movl (JB_DI*4)(%ecx), %edi
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movl (JB_BP*4)(%ecx), %ebp
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movl (JB_SP*4)(%ecx), %esp
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/* Jump to saved PC. */
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movl JB_PC(%ecx), %ecx
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movl (JB_PC*4)(%ecx), %ecx
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jmp *%ecx
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@ -65,7 +65,7 @@ elf_machine_load_address (void)
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This will be the first relocation in the text of the dynamic linker;
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we skip it to avoid trying to modify read-only text in this early stage. */
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#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
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++(const Elf32_Rel *) (dynamic_info)[DT_REL]->d_un.d_ptr;
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++(const Elf32_Rel *) (dynamic_info)[DT_REL]->d_un.d_ptr; \
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(dynamic_info)[DT_RELSZ]->d_un.d_val -= sizeof (Elf32_Rel);
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/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
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@ -24,13 +24,26 @@ Cambridge, MA 02139, USA. */
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ENTRY (__sigsetjmp)
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movl 4(%esp), %eax /* User's jmp_buf in %eax. */
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/* Save registers. */
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movl %ebx, JB_BX(%eax)
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movl %esi, JB_SI(%eax)
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movl %edi, JB_DI(%eax)
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movl %ebp, JB_BP(%eax)
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movl %ebx, (JB_BX*4)(%eax)
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movl %esi, (JB_SI*4)(%eax)
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movl %edi, (JB_DI*4)(%eax)
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movl %ebp, (JB_BP*4)(%eax)
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leal 4(%esp), %ecx /* Save SP as it will be after we return. */
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movl %ecx, JB_SP(%eax)
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movl %ecx, (JB_SP*4)(%eax)
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movl 0(%esp), %ecx /* Save PC we are returning to now. */
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movl %ecx, JB_PC(%eax)
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xorl %eax, %eax /* Return zero. */
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ret
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movl %ecx, (JB_PC*4)(%eax)
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/* Make a tail call to __sigjmp_save; it takes the same args. */
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#ifdef PIC
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/* We cannot use the PLT, because it requires that %ebx be set, but
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we can't save and restore our caller's value. Instead, we do an
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indirect jump through the GOT, using for the temporary register
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%ecx, which is call-clobbered. */
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call here
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here: popl %ecx
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addl $_GLOBAL_OFFSET_TABLE_+[.-here], %ecx
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movl C_SYMBOL_NAME(__sigjmp_save@GOT)(%ecx), %ecx
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jmp *%ecx
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#else
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jmp __sigjmp_save
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#endif
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