diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/internal-signals.h | 27 | ||||
| -rw-r--r-- | sysdeps/generic/internal-sigset.h (renamed from sysdeps/generic/dl-fptr.h) | 33 | ||||
| -rw-r--r-- | sysdeps/generic/ldsodefs.h | 19 | ||||
| -rw-r--r-- | sysdeps/generic/mremap-failure.h | 25 | ||||
| -rw-r--r-- | sysdeps/generic/syscall_types.h | 25 |
5 files changed, 91 insertions, 38 deletions
diff --git a/sysdeps/generic/internal-signals.h b/sysdeps/generic/internal-signals.h index 3db100be10..e031a96bac 100644 --- a/sysdeps/generic/internal-signals.h +++ b/sysdeps/generic/internal-signals.h @@ -20,6 +20,7 @@ # define __INTERNAL_SIGNALS_H #include <signal.h> +#include <internal-sigset.h> #include <sigsetops.h> #include <stdbool.h> #include <stddef.h> @@ -39,10 +40,32 @@ clear_internal_signals (sigset_t *set) { } -typedef sigset_t internal_sigset_t; - #define internal_sigemptyset(__s) __sigemptyset (__s) +#define internal_sigfillset(__s) __sigfillset (__s) #define internal_sigaddset(__s, __i) __sigaddset (__s, __i) #define internal_sigprocmask(__h, __s, __o) __sigprocmask (__h, __s, __o) +static inline void +internal_signal_block_all (internal_sigset_t *oset) +{ + internal_sigset_t set; + internal_sigfillset (&set); + internal_sigprocmask (SIG_BLOCK, &set, oset); +} + +static inline void +internal_signal_restore_set (const internal_sigset_t *set) +{ + internal_sigprocmask (SIG_SETMASK, set, NULL); +} + +static inline void +internal_signal_unblock_signal (int sig) +{ + internal_sigset_t set; + internal_sigemptyset (&set); + internal_sigaddset (&set, sig); + internal_sigprocmask (SIG_UNBLOCK, &set, NULL); +} + #endif /* __INTERNAL_SIGNALS_H */ diff --git a/sysdeps/generic/dl-fptr.h b/sysdeps/generic/internal-sigset.h index 71cfb62411..80279ffc47 100644 --- a/sysdeps/generic/dl-fptr.h +++ b/sysdeps/generic/internal-sigset.h @@ -1,5 +1,5 @@ -/* Function descriptors. Generic version. - Copyright (C) 1995-2024 Free Software Foundation, Inc. +/* Internal sigset_t definition. + Copyright (C) 2022-2023 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 @@ -16,30 +16,11 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#ifndef dl_fptr_h -#define dl_fptr_h 1 +#ifndef _INTERNAL_SIGSET_H +#define _INTERNAL_SIGSET_H -/* An FDESC is a function descriptor. */ +#include <signal.h> -struct fdesc - { - ElfW(Addr) ip; /* code entry point */ - ElfW(Addr) gp; /* global pointer */ - }; +typedef sigset_t internal_sigset_t; -struct fdesc_table - { - struct fdesc_table *next; - unsigned int len; /* # of entries in fdesc table */ - volatile unsigned int first_unused; /* index of first available entry */ - struct fdesc fdesc[0]; - }; - -struct link_map; - -extern ElfW(Addr) _dl_boot_fptr_table []; - -extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *, - ElfW(Addr)); - -#endif /* !dl_fptr_h */ +#endif diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index 656e8a3fa0..91447a5e77 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -1014,6 +1014,13 @@ extern void _dl_relocate_object (struct link_map *map, int reloc_mode, int consider_profiling) attribute_hidden; +/* Perform relocation, but do not apply RELRO. Does not check + L->relocated. Otherwise the same as _dl_relocate_object. */ +void _dl_relocate_object_no_relro (struct link_map *map, + struct r_scope_elem *scope[], + int reloc_mode, int consider_profiling) + attribute_hidden; + /* Protect PT_GNU_RELRO area. */ extern void _dl_protect_relro (struct link_map *map) attribute_hidden; @@ -1200,10 +1207,8 @@ extern void _dl_get_tls_static_info (size_t *sizep, size_t *alignp); extern void _dl_allocate_static_tls (struct link_map *map) attribute_hidden; -/* These are internal entry points to the two halves of _dl_allocate_tls, - only used within rtld.c itself at startup time. */ extern void *_dl_allocate_tls_storage (void) attribute_hidden; -extern void *_dl_allocate_tls_init (void *, bool); +extern void *_dl_allocate_tls_init (void *result, bool main_thread); rtld_hidden_proto (_dl_allocate_tls_init) /* True if the TCB has been set up. */ @@ -1241,13 +1246,7 @@ extern void *_dl_open (const char *name, int mode, const void *caller, extern int _dl_scope_free (void *) attribute_hidden; -/* Add module to slot information data. If DO_ADD is false, only the - required memory is allocated. Must be called with GL - (dl_load_tls_lock) acquired. If the function has already been called - for the link map L with !do_add, then this function will not raise - an exception, otherwise it is possible that it encounters a memory - allocation failure. */ -extern void _dl_add_to_slotinfo (struct link_map *l, bool do_add) +extern bool _dl_add_to_slotinfo (struct link_map *l, bool do_add) attribute_hidden; /* Update slot information data for at least the generation of the diff --git a/sysdeps/generic/mremap-failure.h b/sysdeps/generic/mremap-failure.h new file mode 100644 index 0000000000..bc0d476368 --- /dev/null +++ b/sysdeps/generic/mremap-failure.h @@ -0,0 +1,25 @@ +/* mremap failure handling. Generic version. + Copyright (C) 2024 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/>. */ + +/* Return exit value on mremap failure with errno ERR. */ + +static int +mremap_failure_exit (int err) +{ + return EXIT_FAILURE; +} diff --git a/sysdeps/generic/syscall_types.h b/sysdeps/generic/syscall_types.h new file mode 100644 index 0000000000..2ddeaa2b5f --- /dev/null +++ b/sysdeps/generic/syscall_types.h @@ -0,0 +1,25 @@ +/* Types and macros used for syscall issuing. + Copyright (C) 2023 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/>. */ + +#ifndef _SYSCALL_TYPES_H +#define _SYSCALL_TYPES_H + +typedef long int __syscall_arg_t; +#define __SSC(__x) ((__syscall_arg_t) (__x)) + +#endif |