diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/startup.h | 23 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/startup.h | 22 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/startup.h | 39 |
3 files changed, 65 insertions, 19 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/startup.h b/sysdeps/unix/sysv/linux/i386/startup.h index 67c9310f3a..213805d7d2 100644 --- a/sysdeps/unix/sysv/linux/i386/startup.h +++ b/sysdeps/unix/sysv/linux/i386/startup.h @@ -1,5 +1,5 @@ /* Linux/i386 definitions of functions used by static libc main startup. - Copyright (C) 2017-2022 Free Software Foundation, Inc. + Copyright (C) 2022 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 @@ -16,22 +16,7 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if BUILD_PIE_DEFAULT -/* Can't use "call *%gs:SYSINFO_OFFSET" during statup in static PIE. */ -# define I386_USE_SYSENTER 0 +/* Can't use "call *%gs:SYSINFO_OFFSET" during startup. */ +#define I386_USE_SYSENTER 0 -# include <sysdep.h> -# include <abort-instr.h> - -__attribute__ ((__noreturn__)) -static inline void -_startup_fatal (const char *message __attribute__ ((unused))) -{ - /* This is only called very early during startup in static PIE. - FIXME: How can it be improved? */ - ABORT_INSTRUCTION; - __builtin_unreachable (); -} -#else -# include_next <startup.h> -#endif +#include_next <startup.h> diff --git a/sysdeps/unix/sysv/linux/ia64/startup.h b/sysdeps/unix/sysv/linux/ia64/startup.h new file mode 100644 index 0000000000..77f29f15a2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/startup.h @@ -0,0 +1,22 @@ +/* Linux/ia64 definitions of functions used by static libc main startup. + Copyright (C) 2022 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* This code is used before the TCB is set up. */ +#define IA64_USE_NEW_STUB 0 + +#include_next <startup.h> diff --git a/sysdeps/unix/sysv/linux/startup.h b/sysdeps/unix/sysv/linux/startup.h new file mode 100644 index 0000000000..39859b404a --- /dev/null +++ b/sysdeps/unix/sysv/linux/startup.h @@ -0,0 +1,39 @@ +/* Linux definitions of functions used by static libc main startup. + Copyright (C) 2017-2022 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifdef SHARED +# include_next <startup.h> +#else +# include <sysdep.h> + +/* Avoid a run-time invocation of strlen. */ +#define _startup_fatal(message) \ + do \ + { \ + size_t __message_length = __builtin_strlen (message); \ + if (! __builtin_constant_p (__message_length)) \ + { \ + extern void _startup_fatal_not_constant (void); \ + _startup_fatal_not_constant (); \ + } \ + INTERNAL_SYSCALL_CALL (write, STDERR_FILENO, (message), \ + __message_length); \ + INTERNAL_SYSCALL_CALL (exit_group, 127); \ + } \ + while (0) +#endif /* !SHARED */ |