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-rw-r--r--sysdeps/generic/ldsodefs.h3
-rw-r--r--sysdeps/posix/getaddrinfo.c130
-rw-r--r--sysdeps/unix/sysv/linux/i386/glob64.c22
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S8
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S16
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S8
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S2
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S16
9 files changed, 119 insertions, 88 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index ffeb093..9d767b6 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -590,9 +590,6 @@ struct rtld_global_ro
/* List of auditing interfaces. */
struct audit_ifaces *_dl_audit;
unsigned int _dl_naudit;
-
- /* 0 if internal pointer values should not be guarded, 1 if they should. */
- EXTERN int _dl_pointer_guard;
};
# define __rtld_global_attribute__
# ifdef IS_IN_rtld
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index d2283bc..df6ce8b 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -168,9 +168,58 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
return 0;
}
+/* Convert struct hostent to a list of struct gaih_addrtuple objects.
+ h_name is not copied, and the struct hostent object must not be
+ deallocated prematurely. *RESULT must be NULL or a pointer to an
+ object allocated using malloc, which is freed. */
+static bool
+convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
+ int family,
+ struct hostent *h,
+ struct gaih_addrtuple **result)
+{
+ free (*result);
+ *result = NULL;
+
+ /* Count the number of addresses in h->h_addr_list. */
+ size_t count = 0;
+ for (char **p = h->h_addr_list; *p != NULL; ++p)
+ ++count;
+
+ /* Report no data if no addresses are available, or if the incoming
+ address size is larger than what we can store. */
+ if (count == 0 || h->h_length > sizeof (((struct gaih_addrtuple) {}).addr))
+ return true;
+
+ struct gaih_addrtuple *array = calloc (count, sizeof (*array));
+ if (array == NULL)
+ return false;
+
+ for (size_t i = 0; i < count; ++i)
+ {
+ if (family == AF_INET && req->ai_family == AF_INET6)
+ {
+ /* Perform address mapping. */
+ array[i].family = AF_INET6;
+ memcpy(array[i].addr + 3, h->h_addr_list[i], sizeof (uint32_t));
+ array[i].addr[2] = htonl (0xffff);
+ }
+ else
+ {
+ array[i].family = family;
+ memcpy (array[i].addr, h->h_addr_list[i], h->h_length);
+ }
+ array[i].next = array + i + 1;
+ }
+ array[0].name = h->h_name;
+ array[count - 1].next = NULL;
+
+ *result = array;
+ return true;
+}
+
#define gethosts(_family, _type) \
{ \
- int i; \
int herrno; \
struct hostent th; \
struct hostent *h; \
@@ -219,36 +268,23 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
} \
else if (h != NULL) \
{ \
- for (i = 0; h->h_addr_list[i]; i++) \
+ /* Make sure that addrmem can be freed. */ \
+ if (!malloc_addrmem) \
+ addrmem = NULL; \
+ if (!convert_hostent_to_gaih_addrtuple (req, _family,h, &addrmem)) \
{ \
- if (*pat == NULL) \
- { \
- *pat = __alloca (sizeof (struct gaih_addrtuple)); \
- (*pat)->scopeid = 0; \
- } \
- uint32_t *addr = (*pat)->addr; \
- (*pat)->next = NULL; \
- (*pat)->name = i == 0 ? strdupa (h->h_name) : NULL; \
- if (_family == AF_INET && req->ai_family == AF_INET6) \
- { \
- (*pat)->family = AF_INET6; \
- addr[3] = *(uint32_t *) h->h_addr_list[i]; \
- addr[2] = htonl (0xffff); \
- addr[1] = 0; \
- addr[0] = 0; \
- } \
- else \
- { \
- (*pat)->family = _family; \
- memcpy (addr, h->h_addr_list[i], sizeof(_type)); \
- } \
- pat = &((*pat)->next); \
+ _res.options |= old_res_options & RES_USE_INET6; \
+ result = -EAI_SYSTEM; \
+ goto free_and_return; \
} \
+ *pat = addrmem; \
+ /* The conversion uses malloc unconditionally. */ \
+ malloc_addrmem = true; \
\
if (localcanon != NULL && canon == NULL) \
canon = strdupa (localcanon); \
\
- if (_family == AF_INET6 && i > 0) \
+ if (_family == AF_INET6 && *pat != NULL) \
got_ipv6 = true; \
} \
}
@@ -612,44 +648,16 @@ gaih_inet (const char *name, const struct gaih_service *service,
{
if (h != NULL)
{
- int i;
- /* We found data, count the number of addresses. */
- for (i = 0; h->h_addr_list[i]; ++i)
- ;
- if (i > 0 && *pat != NULL)
- --i;
-
- if (__libc_use_alloca (alloca_used
- + i * sizeof (struct gaih_addrtuple)))
- addrmem = alloca_account (i * sizeof (struct gaih_addrtuple),
- alloca_used);
- else
- {
- addrmem = malloc (i
- * sizeof (struct gaih_addrtuple));
- if (addrmem == NULL)
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- malloc_addrmem = true;
- }
-
- /* Now convert it into the list. */
- struct gaih_addrtuple *addrfree = addrmem;
- for (i = 0; h->h_addr_list[i]; ++i)
+ /* We found data, convert it. */
+ if (!convert_hostent_to_gaih_addrtuple
+ (req, AF_INET, h, &addrmem))
{
- if (*pat == NULL)
- {
- *pat = addrfree++;
- (*pat)->scopeid = 0;
- }
- (*pat)->next = NULL;
- (*pat)->family = AF_INET;
- memcpy ((*pat)->addr, h->h_addr_list[i],
- h->h_length);
- pat = &((*pat)->next);
+ result = -EAI_MEMORY;
+ goto free_and_return;
}
+ *pat = addrmem;
+ /* The conversion uses malloc unconditionally. */
+ malloc_addrmem = true;
}
}
else
diff --git a/sysdeps/unix/sysv/linux/i386/glob64.c b/sysdeps/unix/sysv/linux/i386/glob64.c
index b4fcd1a..802c957 100644
--- a/sysdeps/unix/sysv/linux/i386/glob64.c
+++ b/sysdeps/unix/sysv/linux/i386/glob64.c
@@ -1,3 +1,21 @@
+/* Two glob variants with 64-bit support, for dirent64 and __olddirent64.
+ Copyright (C) 1998-2016 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
+ <http://www.gnu.org/licenses/>. */
+
#include <dirent.h>
#include <glob.h>
#include <sys/stat.h>
@@ -38,11 +56,15 @@ int __old_glob64 (const char *__pattern, int __flags,
#undef dirent
#define dirent __old_dirent64
+#undef GL_READDIR
+# define GL_READDIR(pglob, stream) \
+ ((struct __old_dirent64 *) (pglob)->gl_readdir (stream))
#undef __readdir
#define __readdir(dirp) __old_readdir64 (dirp)
#undef glob
#define glob(pattern, flags, errfunc, pglob) \
__old_glob64 (pattern, flags, errfunc, pglob)
+#define convert_dirent __old_convert_dirent
#define glob_in_dir __old_glob_in_dir
#define GLOB_ATTRIBUTE attribute_compat_text_section
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S b/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
index 83cf0d8..67ea206 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S
@@ -17,6 +17,14 @@
#include <sysdep.h>
+/* We do not want .eh_frame info so that __makecontext_ret stops unwinding
+ if backtrace was called within a context created by makecontext. (There
+ is also no .eh_frame info for _start or thread_start.) */
+#undef cfi_startproc
+#define cfi_startproc
+#undef cfi_endproc
+#define cfi_endproc
+
ENTRY(__makecontext_ret)
basr %r14,%r7
ltr %r8,%r8 /* Check whether uc_link is 0. */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index 42839e2..b263773 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -34,7 +34,7 @@ ENTRY(__setcontext)
lr %r1,%r2
/* rt_sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL, sigsetsize). */
- la %r2,SIG_BLOCK
+ la %r2,SIG_SETMASK
la %r3,SC_MASK(%r1)
slr %r4,%r4
lhi %r5,_NSIG8
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index 9206aa3..8f9cfd8 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -24,7 +24,7 @@
/* __swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
Saves the machine context in oucp such that when it is activated,
- it appears as if __swapcontextt() returned again, restores the
+ it appears as if __swapcontext() returned again, restores the
machine context in ucp and thereby resumes execution in that
context.
@@ -39,13 +39,6 @@ ENTRY(__swapcontext)
lr %r1,%r2
lr %r0,%r3
- /* sigprocmask (SIG_BLOCK, NULL, &sc->sc_mask). */
- la %r2,SIG_BLOCK
- slr %r3,%r3
- la %r4,SC_MASK(%r1)
- lhi %r5,_NSIG8
- svc SYS_ify(rt_sigprocmask)
-
/* Store fpu context. */
stfpc SC_FPC(%r1)
std %f0,SC_FPRS(%r1)
@@ -74,11 +67,12 @@ ENTRY(__swapcontext)
/* Store general purpose registers. */
stm %r0,%r15,SC_GPRS(%r1)
- /* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL). */
- la %r2,SIG_BLOCK
+ /* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, &oucp->uc_sigmask,
+ sigsetsize). */
+ la %r2,SIG_SETMASK
lr %r5,%r0
la %r3,SC_MASK(%r5)
- slr %r4,%r4
+ la %r4,SC_MASK(%r1)
lhi %r5,_NSIG8
svc SYS_ify(rt_sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S b/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S
index 71ecbab..a2bf3ca 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/__makecontext_ret.S
@@ -17,6 +17,14 @@
#include <sysdep.h>
+/* We do not want .eh_frame info so that __makecontext_ret stops unwinding
+ if backtrace was called within a context created by makecontext. (There
+ is also no .eh_frame info for _start or thread_start.) */
+#undef cfi_startproc
+#define cfi_startproc
+#undef cfi_endproc
+#define cfi_endproc
+
ENTRY(__makecontext_ret)
basr %r14,%r7
ltgr %r8,%r8 /* Check whether uc_link is 0. */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
index 83df5ce..1464e6a 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S
@@ -34,7 +34,7 @@ ENTRY(__setcontext)
lgr %r1,%r2
/* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL). */
- la %r2,SIG_BLOCK
+ la %r2,SIG_SETMASK
la %r3,SC_MASK(%r1)
slgr %r4,%r4
lghi %r5,_NSIG8
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
index e3e624c..8346fd5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
@@ -24,7 +24,7 @@
/* __swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
Saves the machine context in oucp such that when it is activated,
- it appears as if __swapcontextt() returned again, restores the
+ it appears as if __swapcontext() returned again, restores the
machine context in ucp and thereby resumes execution in that
context.
@@ -39,13 +39,6 @@ ENTRY(__swapcontext)
lgr %r1,%r2
lgr %r0,%r3
- /* sigprocmask (SIG_BLOCK, NULL, &sc->sc_mask). */
- la %r2,SIG_BLOCK
- slgr %r3,%r3
- la %r4,SC_MASK(%r1)
- lghi %r5,_NSIG8
- svc SYS_ify(rt_sigprocmask)
-
/* Store fpu context. */
stfpc SC_FPC(%r1)
std %f0,SC_FPRS(%r1)
@@ -74,12 +67,13 @@ ENTRY(__swapcontext)
/* Store general purpose registers. */
stmg %r0,%r15,SC_GPRS(%r1)
- /* rt_sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL, sigsetsize). */
- la %r2,SIG_BLOCK
+ /* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, &oucp->uc_sigmask,
+ sigsetsize). */
+ la %r2,SIG_SETMASK
lgr %r5,%r0
la %r3,SC_MASK(%r5)
+ la %r4,SC_MASK(%r1)
lghi %r5,_NSIG8
- slgr %r4,%r4
svc SYS_ify(rt_sigprocmask)
/* Load fpu context. */
generated by cgit v1.1 at 2024-12-23 20:18:26 +0000