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-rw-r--r--sysdeps/alpha/dl-machine.h4
-rw-r--r--sysdeps/i386/dl-machine.h10
-rw-r--r--sysdeps/m68k/dl-machine.h18
-rw-r--r--sysdeps/mips/dl-machine.h2
-rw-r--r--sysdeps/unix/sysv/linux/i386/clone.S1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/clone.S75
6 files changed, 93 insertions, 17 deletions
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index a75011fccb..2bf8f9b7ec 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -341,8 +341,8 @@ elf_machine_rela (struct link_map *map,
{
Elf64_Addr loadbase, sym_value;
- loadbase = RESOLVE (&sym, (Elf64_Addr)reloc_addr,
- r_info == R_ALPHA_JMP_SLOT);
+ loadbase = RESOLVE (&sym,
+ r_info == R_ALPHA_JMP_SLOT ? DL_LOOKUP_NOPLT : 0);
sym_value = sym ? loadbase + sym->st_value : 0;
if (r_info == R_ALPHA_GLOB_DAT)
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 111122e437..d616bf4db8 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -193,15 +193,15 @@ elf_machine_rel (struct link_map *map,
switch (ELF32_R_TYPE (reloc->r_info))
{
case R_386_COPY:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, DL_LOOKUP_NOEXEC);
memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
break;
case R_386_GLOB_DAT:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_386_JMP_SLOT:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 1);
+ loadbase = RESOLVE (&sym, DL_LOOKUP_NOPLT);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_386_32:
@@ -222,7 +222,7 @@ elf_machine_rel (struct link_map *map,
built-in definitions used while loading those libraries. */
undo = map->l_addr + sym->st_value;
#endif
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr += (sym ? (loadbase + sym->st_value) : 0) - undo;
break;
}
@@ -233,7 +233,7 @@ elf_machine_rel (struct link_map *map,
*reloc_addr += map->l_addr;
break;
case R_386_PC32:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr += ((sym ? (loadbase + sym->st_value) : 0) -
(Elf32_Addr) reloc_addr);
break;
diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h
index 4642f00c63..15aa5325fc 100644
--- a/sysdeps/m68k/dl-machine.h
+++ b/sysdeps/m68k/dl-machine.h
@@ -205,29 +205,29 @@ elf_machine_rela (struct link_map *map,
switch (ELF32_R_TYPE (reloc->r_info))
{
case R_68K_COPY:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, DL_LOOKUP_NOEXEC);
memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size);
break;
case R_68K_GLOB_DAT:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_68K_JMP_SLOT:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 1);
+ loadbase = RESOLVE (&sym, DL_LOOKUP_NOPLT);
*reloc_addr = sym ? (loadbase + sym->st_value) : 0;
break;
case R_68K_8:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_16:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
case R_68K_32:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend);
break;
@@ -235,17 +235,17 @@ elf_machine_rela (struct link_map *map,
*reloc_addr = map->l_addr + reloc->r_addend;
break;
case R_68K_PC8:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
case R_68K_PC16:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
case R_68K_PC32:
- loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr = ((sym ? (loadbase + sym->st_value) : 0)
+ reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
diff --git a/sysdeps/mips/dl-machine.h b/sysdeps/mips/dl-machine.h
index 50e9f64665..c0ac649144 100644
--- a/sysdeps/mips/dl-machine.h
+++ b/sysdeps/mips/dl-machine.h
@@ -453,7 +453,7 @@ elf_machine_rel (struct link_map *map,
else
#endif
undo = 0;
- loadbase = RESOLVE (&sym, (ElfW(Addr)) reloc_addr, 0);
+ loadbase = RESOLVE (&sym, 0);
*reloc_addr += (sym ? (loadbase + sym->st_value) : 0) - undo;
}
break;
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 02f561927e..b60bc8ed92 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -71,6 +71,7 @@ ENTRY(__clone)
thread_start:
subl %ebp,%ebp /* terminate the stack frame */
call *%ebx
+ pushl %eax
#ifdef PIC
call _exit@PLT
#else
diff --git a/sysdeps/unix/sysv/linux/m68k/clone.S b/sysdeps/unix/sysv/linux/m68k/clone.S
new file mode 100644
index 0000000000..64077e00de
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/clone.S
@@ -0,0 +1,75 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+ Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/* clone is even more special than fork as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sysdep.h>
+#include <errnos.h>
+
+/* int clone (int (*fn) (), void *child_stack, int flags, int nargs, ...) */
+
+ .text
+ENTRY (__clone)
+ /* Sanity check arguments. */
+ movel #-EINVAL, %d0
+ movel 4(%sp), %a0 /* no NULL function pointers */
+ tstl %a0
+ jeq syscall_error
+ movel 8(%sp), %a1 /* no NULL stack pointers */
+ tstl %a1
+ jeq syscall_error
+ movel 16(%sp), %d1 /* no negative argument counts */
+ jmi syscall_error
+
+ /* Allocate space on the new stack and copy args over */
+ movel %d1, %d0
+ negl %d0
+ lea (%a1,%d0.l*4), %a1
+ jeq 2f
+1: movel 16(%sp,%d1.l*4), -4(%a1,%d1.l*4)
+ subql #1, %d1
+ jne 1b
+2:
+
+ /* Do the system call */
+ exg %d2, %a1 /* save %d2 and get stack pointer */
+ movel 12(%sp), %d1 /* get flags */
+ movel #SYS_ify (clone), %d0
+ trap #0
+ exg %d2, %a1 /* restore %d2 */
+
+ tstl %d0
+ jmi syscall_error
+ jeq thread_start
+
+ rts
+
+ SYSCALL_ERROR_HANDLER
+
+thread_start:
+ subl %fp, %fp /* terminate the stack frame */
+ jsr (%a0)
+ movel %d0, -(%sp)
+#ifdef PIC
+ bsrl _exit@PLTPC
+#else
+ jbsr _exit
+#endif
+
+weak_alias (__clone, clone)
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-17 02:35:15 +0000