diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/Dist | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/init-first.h | 38 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/mmap.S | 8 |
3 files changed, 31 insertions, 17 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist index 4e4f467392..780edfca50 100644 --- a/sysdeps/unix/sysv/linux/i386/Dist +++ b/sysdeps/unix/sysv/linux/i386/Dist @@ -1,3 +1,3 @@ sys/perm.h sys/vm86.h init-first.h -close.S +clone.S diff --git a/sysdeps/unix/sysv/linux/i386/init-first.h b/sysdeps/unix/sysv/linux/i386/init-first.h index f42d7f2533..4c61f1b41e 100644 --- a/sysdeps/unix/sysv/linux/i386/init-first.h +++ b/sysdeps/unix/sysv/linux/i386/init-first.h @@ -1,13 +1,27 @@ -/* This fragment is invoked in the stack context of program start. - Its job is to set up a pointer to argc as an argument, pass - control to `INIT', and, if necessary, clean up after the call - to leave the stack in the same condition it was found in. */ +/* The job of this fragment it to find argc and friends for INIT. + This is done in one of two ways: either in the stack context + of program start, or having dlopen pass them in. */ -#define SYSDEP_CALL_INIT(NAME, INIT) \ - asm(".globl " #NAME "\n\t" \ - #NAME ":\n\t" \ - "lea 4(%esp), %eax\n\t" \ - "pushl %eax\n\t" \ - "call " #INIT "\n\t" \ - "popl %eax\n\t" \ - "ret"); +#define SYSDEP_CALL_INIT(NAME, INIT) \ +void NAME (void *arg) \ +{ \ + int argc; \ + char **argv, **envp; \ + \ + __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up; \ + \ + if (!__libc_multiple_libcs) \ + { \ + argc = (int) arg; \ + argv = (char **) &arg + 1; \ + envp = &argv[argc+1]; \ + } \ + else \ + { \ + argc = (int) arg; \ + argv = ((char ***) &arg)[1]; \ + envp = ((char ***) &arg)[2]; \ + } \ + \ + INIT (argc, argv, envp); \ +} diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S index 90ac88c46f..638d548e00 100644 --- a/sysdeps/unix/sysv/linux/i386/mmap.S +++ b/sysdeps/unix/sysv/linux/i386/mmap.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1995 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -36,9 +36,9 @@ ENTRY (__mmap) /* Restore registers. */ movl %edx, %ebx - /* %eax is < 0 if there was an error. */ - testl %eax, %eax - jl syscall_error + /* If 0 > %eax > -4096 there was an error. */ + cmpl $-4096, %eax + ja syscall_error /* Successful; return the syscall's value. */ ret |