2 Feb
2016
2 Feb
'16
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- Log -----------------------------------------------------------------
commit a0c37f580fe1017abb312fb2fe030ac1d512a98f
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Sat Jan 30 10:37:44 2016 +0100
mips: fix clashing symbols
ISC bind9 uses ptrsize, better use something else.
Reported-By: Gustavo Zacarias <gustavo(a)zacarias.com.ar>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit 2b83082c20d38b6ff170f63e60c95510e9a640b9
Author: Waldemar Brodkorb <wbx(a)openadk.org>
Date: Fri Jan 29 09:32:21 2016 +0100
mips64: fix memcpy, patch from glibc
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit f5ff52245ff9f260ebdfc011315066446eeb729c
Author: Waldemar Brodkorb <wbx(a)openadk.org>
Date: Mon Jan 25 21:27:44 2016 +0100
add $ORIGIN test-case
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit d08f12d953074158178570bf54ff41347613412a
Author: Leonid Lisovskiy <lly.dev(a)gmail.com>
Date: Tue Jan 26 20:12:58 2016 +0300
ldso: Use single rtld_flags interpretation through all the calls
Implement single rtld_flags interpretation through all the
do_dlopen()/_dl_load_shared_library()/_dl_load_elf_shared_library()
calls chain.
This adds the ability to use the flags, passed to dlopen(), in all
underlaying functions and implement rtld_flags inheritance.
Saves a few bytes code.
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit 03c9955453af2342492f7f194c6d15eaa504556b
Author: Leonid Lisovskiy <lly.dev(a)gmail.com>
Date: Tue Jan 26 20:12:57 2016 +0300
ldso: Fix fail of $ORIGIN expansion in case of RTLD_NOLOAD
$ORIGIN expansion in search_for_named_library() wrongly
takes into account all bits of rflags.
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit 02e1e05c2fb1ec4c0c4aa71028075dbe7d94ca91
Author: Leonid Lisovskiy <lly.dev(a)gmail.com>
Date: Sat Jan 23 23:26:56 2016 +0300
Provide __adjtimex() alias, like glibc.
Althought recent versions of sofware don't require it, old ntpd
wants - see http://bugs.ntp.org/show_bug.cgi?id=769
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit b6b6caea9272ff526033f367811b6618b1b620ed
Author: Leonid Lisovskiy <lly.dev(a)gmail.com>
Date: Fri Jan 22 22:02:49 2016 +0300
tests: Extend OMIT LDFLAGS logic to test binaries too
In continue of 72215487 "tests: add OMIT logic to remove compilation flag."
commit.
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit bb01edff0377f2585ce304ecbadcb7b6cde372ac
Author: Waldemar Brodkorb <wbx(a)openadk.org>
Date: Mon Jan 25 21:11:34 2016 +0100
Make sure to always terminate decoded string
Write a terminating '\0' to dest when the first byte of the encoded data
is 0. This corner case was previously missed.
Signed-off-by: Daniel Fahlgren <daniel(a)fahlgren.se>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit 16719c1a7078421928e6d31dd1dec574825ef515
Author: Waldemar Brodkorb <wbx(a)openadk.org>
Date: Sun Jan 17 15:47:22 2016 +0100
Do not follow compressed items forever.
It is possible to get stuck in an infinite loop when receiving a
specially crafted DNS reply. Exit the loop after a number of iteration
and consider the packet invalid.
Signed-off-by: Daniel Fahlgren <daniel(a)fahlgren.se>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit e0ec7f10294250e575b475f5dfe9b5942b0e81e5
Author: Leonid Lisovskiy <lly.dev(a)gmail.com>
Date: Wed Jan 13 21:00:05 2016 +0300
libdl: dlopen() mustn't forget RTLD_NODELETE flag
If RTLD_NODELETE is passed to dlopen() rather than set on shared
library itself, flag propagation to rtld_flags is missed.
Test-case taken from glibc.
Signed-off-by: Leonid Lisovskiy <lly.dev(a)gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
commit 4002a85b077c23d53a9141885fea62157e11e698
Author: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
Date: Sat Jan 30 10:36:17 2016 +0100
add exp10() from glibc
Some software make use of exp10, so add it.
Basic testing with LTP.
Signed-off-by: Waldemar Brodkorb <wbx(a)uclibc-ng.org>
-----------------------------------------------------------------------
Summary of changes:
include/dlfcn.h | 3 +
include/sys/timex.h | 2 -
ldso/include/dl-elf.h | 7 +-
ldso/ldso/dl-elf.c | 16 ++-
ldso/ldso/ldso.c | 5 +-
ldso/libdl/libdl.c | 12 +-
libc/inet/resolv.c | 6 +-
libc/string/mips/memcpy.S | 2 +-
libc/sysdeps/linux/common/adjtimex.c | 1 +
libc/sysdeps/linux/common/bits/mathcalls.h | 6 +-
libc/sysdeps/linux/mips/bits/setjmp.h | 12 +-
libc/sysdeps/linux/mips/setjmp_aux.c | 6 +-
libm/Makefile.in | 4 +-
libc/signal/sigignore.c => libm/e_exp10.c | 26 ++--
libm/math_private.h | 1 +
test/Test.mak | 5 +-
test/dlopen/Makefile.in | 19 ++-
test/dlopen/nodelete.c | 205 ++++++++++++++++++++++++++++
test/dlopen/nodelmod1.c | 10 ++
test/dlopen/nodelmod2.c | 10 ++
test/dlopen/nodelmod3.c | 8 ++
test/dlopen/nodelmod4.c | 10 ++
test/dlopen/{test2.c => tst-origin.c} | 22 ++-
23 files changed, 330 insertions(+), 68 deletions(-)
copy libc/signal/sigignore.c => libm/e_exp10.c (63%)
create mode 100644 test/dlopen/nodelete.c
create mode 100644 test/dlopen/nodelmod1.c
create mode 100644 test/dlopen/nodelmod2.c
create mode 100644 test/dlopen/nodelmod3.c
create mode 100644 test/dlopen/nodelmod4.c
copy test/dlopen/{test2.c => tst-origin.c} (51%)
diff --git a/include/dlfcn.h b/include/dlfcn.h
index 241ec54..74825aa 100644
--- a/include/dlfcn.h
+++ b/include/dlfcn.h
@@ -26,6 +26,9 @@
/* Collect various system dependent definitions and declarations. */
#include <bits/dlfcn.h>
+/* Internally used flag. */
+#define __RTLD_SECURE 0x04000000 /* Apply additional security checks. */
+
#ifdef __USE_GNU
/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
diff --git a/include/sys/timex.h b/include/sys/timex.h
index 57059bd..4cb81d2 100644
--- a/include/sys/timex.h
+++ b/include/sys/timex.h
@@ -120,9 +120,7 @@ struct timex
__BEGIN_DECLS
-#if 0
extern int __adjtimex (struct timex *__ntx) __THROW;
-#endif
extern int adjtimex (struct timex *__ntx) __THROW;
libc_hidden_proto(adjtimex)
diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h
index 4cc9b2b..57f0ddc 100644
--- a/ldso/include/dl-elf.h
+++ b/ldso/include/dl-elf.h
@@ -29,18 +29,15 @@ static __inline__ void _dl_map_cache(void) { }
static __inline__ void _dl_unmap_cache(void) { }
#endif
-#define DL_RESOLVE_SECURE 0x0001
-#define DL_RESOLVE_NOLOAD 0x0002
-
/* Function prototypes for non-static stuff in elfinterp.c */
extern void _dl_parse_lazy_relocation_information(struct dyn_elf *rpnt,
unsigned long rel_addr, unsigned long rel_size);
extern int _dl_parse_relocation_information(struct dyn_elf *rpnt,
struct r_scope_elem *scope, unsigned long rel_addr, unsigned long rel_size);
-extern struct elf_resolve * _dl_load_shared_library(unsigned rflags,
+extern struct elf_resolve * _dl_load_shared_library(unsigned int rflags,
struct dyn_elf **rpnt, struct elf_resolve *tpnt, char *full_libname,
int trace_loaded_objects);
-extern struct elf_resolve * _dl_load_elf_shared_library(unsigned rflags,
+extern struct elf_resolve * _dl_load_elf_shared_library(unsigned int rflags,
struct dyn_elf **rpnt, const char *libname);
extern int _dl_linux_resolve(void);
extern int _dl_fixup(struct dyn_elf *rpnt, struct r_scope_elem *scope, int flag);
diff --git a/ldso/ldso/dl-elf.c b/ldso/ldso/dl-elf.c
index 01b29da..04e8c60 100644
--- a/ldso/ldso/dl-elf.c
+++ b/ldso/ldso/dl-elf.c
@@ -132,7 +132,7 @@ _dl_protect_relro (struct elf_resolve *l)
/* This function's behavior must exactly match that
* in uClibc/ldso/util/ldd.c */
static struct elf_resolve *
-search_for_named_library(const char *name, unsigned rflags, const char *path_list,
+search_for_named_library(const char *name, unsigned int rflags, const char *path_list,
struct dyn_elf **rpnt, const char* origin)
{
char *mylibname;
@@ -162,7 +162,9 @@ search_for_named_library(const char *name, unsigned rflags, const char
*path_lis
if (plen >= 7 && _dl_memcmp(p, "$ORIGIN", 7) == 0) {
int olen;
- if (rflags && plen != 7)
+ /* $ORIGIN is not expanded for SUID/GUID programs
+ (except if it is $ORIGIN alone) */
+ if ((rflags & __RTLD_SECURE) && plen != 7)
continue;
if (origin == NULL)
continue;
@@ -194,7 +196,7 @@ search_for_named_library(const char *name, unsigned rflags, const char
*path_lis
unsigned long _dl_error_number;
unsigned long _dl_internal_error_number;
-struct elf_resolve *_dl_load_shared_library(unsigned rflags, struct dyn_elf **rpnt,
+struct elf_resolve *_dl_load_shared_library(unsigned int rflags, struct dyn_elf **rpnt,
struct elf_resolve *tpnt, char *full_libname, int attribute_unused
trace_loaded_objects)
{
char *pnt;
@@ -493,7 +495,7 @@ map_writeable (int infile, ElfW(Phdr) *ppnt, int piclib, int flags,
* are required.
*/
-struct elf_resolve *_dl_load_elf_shared_library(unsigned rflags,
+struct elf_resolve *_dl_load_elf_shared_library(unsigned int rflags,
struct dyn_elf **rpnt, const char *libname)
{
ElfW(Ehdr) *epnt;
@@ -532,7 +534,7 @@ struct elf_resolve *_dl_load_elf_shared_library(unsigned rflags,
}
/* If we are in secure mode (i.e. a setuid/gid binary using LD_PRELOAD),
we don't load the library if it isn't setuid. */
- if (rflags & DL_RESOLVE_SECURE) {
+ if (rflags & __RTLD_SECURE) {
if (!(st.st_mode & S_ISUID)) {
_dl_close(infile);
return NULL;
@@ -548,7 +550,7 @@ struct elf_resolve *_dl_load_elf_shared_library(unsigned rflags,
return tpnt;
}
}
- if (rflags & DL_RESOLVE_NOLOAD) {
+ if (rflags & RTLD_NOLOAD) {
_dl_close(infile);
return NULL;
}
@@ -812,7 +814,7 @@ struct elf_resolve *_dl_load_elf_shared_library(unsigned rflags,
DL_RELOC_ADDR(DL_GET_RUN_ADDR(tpnt->loadaddr, tpnt->mapaddr),
epnt->e_phoff);
tpnt->n_phent = epnt->e_phnum;
- tpnt->rtld_flags |= rtld_flags;
+ tpnt->rtld_flags = rflags | rtld_flags;
#ifdef __LDSO_STANDALONE_SUPPORT__
tpnt->l_entry = epnt->e_entry;
#endif
diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c
index 0cdc91d..9f4e841 100644
--- a/ldso/ldso/ldso.c
+++ b/ldso/ldso/ldso.c
@@ -589,7 +589,8 @@ of this helper program; chances are you did not intend to run this
program.\n\
* but it could be also a shared object (when ld.so used for tracing)
* We keep the misleading app_tpnt name to avoid variable pollution
*/
- app_tpnt = _dl_load_elf_shared_library(_dl_secure, &rpnt, _dl_progname);
+ app_tpnt = _dl_load_elf_shared_library(_dl_secure ? __RTLD_SECURE : 0,
+ &rpnt, _dl_progname);
if (!app_tpnt) {
_dl_dprintf(2, "can't load '%s'\n", _dl_progname);
_dl_exit(16);
@@ -887,7 +888,7 @@ of this helper program; chances are you did not intend to run this
program.\n\
_dl_if_debug_dprint("\tfile='%s'; needed by '%s'\n", str,
_dl_progname);
tpnt1 = _dl_load_shared_library(
- _dl_secure ? DL_RESOLVE_SECURE : 0,
+ _dl_secure ? __RTLD_SECURE : 0,
&rpnt, NULL, str, trace_loaded_objects);
if (!tpnt1) {
#ifdef __LDSO_LDD_SUPPORT__
diff --git a/ldso/libdl/libdl.c b/ldso/libdl/libdl.c
index 2c4b064..42a09a8 100644
--- a/ldso/libdl/libdl.c
+++ b/ldso/libdl/libdl.c
@@ -59,8 +59,6 @@ extern struct link_map *_dl_update_slotinfo(unsigned long int
req_modid);
* and use a pile of symbols from ldso... */
#include <dl-elf.h>
#if 0
-extern struct elf_resolve * _dl_load_shared_library(unsigned, struct dyn_elf **,
- struct elf_resolve *, char *, int);
extern int _dl_fixup(struct dyn_elf *rpnt, struct r_scope_elem *scope, int lazy);
extern void _dl_protect_relro(struct elf_resolve * tpnt);
#endif
@@ -385,7 +383,7 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr)
from)
_dl_if_debug_print("Trying to dlopen '%s', RTLD_GLOBAL:%d
RTLD_NOW:%d\n",
(char*)libname, (flag & RTLD_GLOBAL ? 1:0), (now_flag & RTLD_NOW ? 1:0));
- tpnt = _dl_load_shared_library((flag & RTLD_NOLOAD) ? DL_RESOLVE_NOLOAD : 0,
+ tpnt = _dl_load_shared_library(flag & (RTLD_NOLOAD | RTLD_GLOBAL | RTLD_NODELETE),
&rpnt, tfrom, (char*)libname, 0);
if (tpnt == NULL) {
_dl_unmap_cache();
@@ -394,7 +392,6 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr)
from)
dyn_chain = (struct dyn_elf *) malloc(sizeof(struct dyn_elf));
memset(dyn_chain, 0, sizeof(struct dyn_elf));
dyn_chain->dyn = tpnt;
- tpnt->rtld_flags |= (flag & RTLD_GLOBAL);
dyn_chain->next_handle = _dl_handles;
_dl_handles = dyn_ptr = dyn_chain;
@@ -407,7 +404,7 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr)
from)
dyn_chain->init_fini.init_fini = handle->init_fini.init_fini;
dyn_chain->init_fini.nlist = handle->init_fini.nlist;
for (i = 0; i < dyn_chain->init_fini.nlist; i++)
- dyn_chain->init_fini.init_fini[i]->rtld_flags |= (flag & RTLD_GLOBAL);
+ dyn_chain->init_fini.init_fini[i]->rtld_flags |= (flag &
(RTLD_GLOBAL|RTLD_NODELETE));
dyn_chain->next = handle->next;
break;
}
@@ -435,12 +432,11 @@ static void *do_dlopen(const char *libname, int flag, ElfW(Addr)
from)
dpnt->d_un.d_val);
_dl_if_debug_print("Trying to load '%s', needed by
'%s'\n",
lpntstr, runp->tpnt->libname);
- tpnt1 = _dl_load_shared_library(0, &rpnt, runp->tpnt, lpntstr, 0);
+ tpnt1 = _dl_load_shared_library(flag & (RTLD_GLOBAL | RTLD_NODELETE),
+ &rpnt, runp->tpnt, lpntstr, 0);
if (!tpnt1)
goto oops;
- tpnt1->rtld_flags |= (flag & RTLD_GLOBAL);
-
/* This list is for dlsym() and relocation */
dyn_ptr->next = (struct dyn_elf *) malloc(sizeof(struct dyn_elf));
memset (dyn_ptr->next, 0, sizeof (struct dyn_elf));
diff --git a/libc/inet/resolv.c b/libc/inet/resolv.c
index dea451a..4eb85ee 100644
--- a/libc/inet/resolv.c
+++ b/libc/inet/resolv.c
@@ -669,11 +669,13 @@ int __decode_dotted(const unsigned char *packet,
bool measure = 1;
unsigned total = 0;
unsigned used = 0;
+ unsigned maxiter = 256;
if (!packet)
return -1;
- while (1) {
+ dest[0] = '\0';
+ while (--maxiter) {
if (offset >= packet_len)
return -1;
b = packet[offset++];
@@ -710,6 +712,8 @@ int __decode_dotted(const unsigned char *packet,
else
dest[used++] = '\0';
}
+ if (!maxiter)
+ return -1;
/* The null byte must be counted too */
if (measure)
diff --git a/libc/string/mips/memcpy.S b/libc/string/mips/memcpy.S
index 2a187ef..3afdb2c 100644
--- a/libc/string/mips/memcpy.S
+++ b/libc/string/mips/memcpy.S
@@ -565,11 +565,11 @@ L(lastw):
#ifdef USE_DOUBLE
andi t8,a2,3 /* a2 is the remainder past 4 byte chunks. */
beq t8,a2,L(lastb)
+ move a2,t8
lw REG3,0(a1)
sw REG3,0(a0)
PTR_ADDIU a0,a0,4
PTR_ADDIU a1,a1,4
- move a2,t8
#endif
/* Copy the last 8 (or 16) bytes */
diff --git a/libc/sysdeps/linux/common/adjtimex.c b/libc/sysdeps/linux/common/adjtimex.c
index 45cb384..1996502 100644
--- a/libc/sysdeps/linux/common/adjtimex.c
+++ b/libc/sysdeps/linux/common/adjtimex.c
@@ -13,6 +13,7 @@
_syscall1(int, adjtimex, struct timex *, buf)
libc_hidden_def(adjtimex)
+weak_alias(adjtimex,__adjtimex)
#if defined __UCLIBC_NTP_LEGACY__
strong_alias(adjtimex,ntp_adjtime)
#endif
diff --git a/libc/sysdeps/linux/common/bits/mathcalls.h
b/libc/sysdeps/linux/common/bits/mathcalls.h
index 9bebb51..8ab8075 100644
--- a/libc/sysdeps/linux/common/bits/mathcalls.h
+++ b/libc/sysdeps/linux/common/bits/mathcalls.h
@@ -145,11 +145,11 @@ __MATHCALLI (log10,, (_Mdouble_ __x))
__MATHCALLI (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr))
_Mdouble_END_NAMESPACE
-#if 0 /*def __USE_GNU*/
+#if defined __USE_GNU
/* A function missing in all standards: compute exponent to base ten. */
-__MATHCALL (exp10,, (_Mdouble_ __x))
+__MATHCALLI (exp10,, (_Mdouble_ __x))
/* Another name occasionally used. */
-__MATHCALL (pow10,, (_Mdouble_ __x))
+__MATHCALLI (pow10,, (_Mdouble_ __x))
#endif
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
diff --git a/libc/sysdeps/linux/mips/bits/setjmp.h
b/libc/sysdeps/linux/mips/bits/setjmp.h
index 375e537..51f972e 100644
--- a/libc/sysdeps/linux/mips/bits/setjmp.h
+++ b/libc/sysdeps/linux/mips/bits/setjmp.h
@@ -26,18 +26,18 @@
#include <sgidefs.h>
#if _MIPS_SIM == _MIPS_SIM_ABI32
-#define ptrsize void *
+#define __ptr_size void *
#else
-#define ptrsize long long
+#define __ptr_size long long
#endif
typedef struct
{
/* Program counter. */
- ptrsize __pc;
+ __ptr_size __pc;
/* Stack pointer. */
- ptrsize __sp;
+ __ptr_size __sp;
/* Callee-saved registers s0 through s7. */
#if _MIPS_SIM == _MIPS_SIM_ABI32
@@ -47,10 +47,10 @@ typedef struct
#endif
/* The frame pointer. */
- ptrsize __fp;
+ __ptr_size __fp;
/* The global pointer. */
- ptrsize __gp;
+ __ptr_size __gp;
/* Floating point status register. */
int __fpc_csr;
diff --git a/libc/sysdeps/linux/mips/setjmp_aux.c b/libc/sysdeps/linux/mips/setjmp_aux.c
index 9cffcc6..4338838 100644
--- a/libc/sysdeps/linux/mips/setjmp_aux.c
+++ b/libc/sysdeps/linux/mips/setjmp_aux.c
@@ -62,14 +62,14 @@ __sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
#endif
/* .. and the stack pointer; */
- env[0].__jmpbuf[0].__sp = (ptrsize) sp;
+ env[0].__jmpbuf[0].__sp = (__ptr_size) sp;
/* .. and the FP; it'll be in s8. */
- env[0].__jmpbuf[0].__fp = (ptrsize) fp;
+ env[0].__jmpbuf[0].__fp = (__ptr_size) fp;
/* .. and the GP; */
#if _MIPS_SIM == _MIPS_SIM_ABI64
- env[0].__jmpbuf[0].__gp = (ptrsize) gp;
+ env[0].__jmpbuf[0].__gp = (__ptr_size) gp;
#else
__asm__ __volatile__ ("sw $gp, %0" : : "m"
(env[0].__jmpbuf[0].__gp));
#endif
diff --git a/libm/Makefile.in b/libm/Makefile.in
index d886cdb..f0e5528 100644
--- a/libm/Makefile.in
+++ b/libm/Makefile.in
@@ -56,7 +56,7 @@ LD_MSRC := ldouble_wrappers.c
ifeq ($(DO_C99_MATH),y)
libm_CSRC := \
e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \
- e_exp.c e_fmod.c e_hypot.c \
+ e_exp.c e_exp10.c e_fmod.c e_hypot.c \
e_lgamma_r.c e_log.c e_log2.c e_log10.c \
e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \
e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \
@@ -238,7 +238,7 @@ libm_CSRC := \
s_expm1.c s_scalbn.c s_copysign.c e_acos.c e_asin.c e_atan2.c \
k_cos.c e_cosh.c e_exp.c e_fmod.c e_log.c e_log10.c e_pow.c \
k_sin.c e_sinh.c e_sqrt.c k_tan.c e_rem_pio2.c k_rem_pio2.c \
- s_finite.c
+ s_finite.c e_exp10.c
# We'll add sqrtf to avoid problems with libstdc++
FL_MOBJ := sqrtf.o
endif
diff --git a/libc/signal/sigignore.c b/libm/e_exp10.c
similarity index 63%
copy from libc/signal/sigignore.c
copy to libm/e_exp10.c
index 1ddce81..f0ee878 100644
--- a/libc/signal/sigignore.c
+++ b/libm/e_exp10.c
@@ -1,5 +1,4 @@
-/* Set the disposition of SIG to SIG_IGN.
- Copyright (C) 1998, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper(a)cygnus.com>om>, 1998.
@@ -17,17 +16,18 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#define __need_NULL
-#include <stddef.h>
-#include <signal.h>
-#include <string.h>
+#include "math.h"
+#include "math_private.h"
+#include <float.h>
-int sigignore (int sig)
+double __ieee754_exp10 (double arg)
{
- struct sigaction act;
-
- memset(&act, 0, sizeof(act));
- act.sa_handler = SIG_IGN;
-
- return sigaction (sig, &act, NULL);
+ if (isfinite (arg) && arg < DBL_MIN_10_EXP - DBL_DIG - 10)
+ return DBL_MIN * DBL_MIN;
+ else
+ /* This is a very stupid and inprecise implementation. It'll get
+ replaced sometime (soon?). */
+ return __ieee754_exp (M_LN10 * arg);
}
+strong_alias(__ieee754_exp10, exp10)
+libm_hidden_def(exp10)
diff --git a/libm/math_private.h b/libm/math_private.h
index be8031e..b62dcfe 100644
--- a/libm/math_private.h
+++ b/libm/math_private.h
@@ -158,6 +158,7 @@ extern double __ieee754_atanh (double) attribute_hidden;
extern double __ieee754_asin (double) attribute_hidden;
extern double __ieee754_atan2 (double,double) attribute_hidden;
extern double __ieee754_exp (double) attribute_hidden;
+extern double __ieee754_exp10 (double) attribute_hidden;
extern double __ieee754_cosh (double) attribute_hidden;
extern double __ieee754_fmod (double,double) attribute_hidden;
extern double __ieee754_pow (double,double) attribute_hidden;
diff --git a/test/Test.mak b/test/Test.mak
index 98939e7..c1b34a7 100644
--- a/test/Test.mak
+++ b/test/Test.mak
@@ -121,14 +121,15 @@ MAKE_SRCS := Makefile $(TESTDIR)Makefile $(TESTDIR)Rules.mak
$(TESTDIR)Test.mak
$(U_TARGETS): $(U_TARGET_SRCS) $(MAKE_SRCS)
$(showlink)
$(Q)$(CC) $(filter-out $(CFLAGS-OMIT-$@),$(CFLAGS)) $(EXTRA_CFLAGS) $(CFLAGS_$(notdir
$(CURDIR))) $(CFLAGS_$@) -c $@.c -o $@.o
- $(Q)$(CC) $(LDFLAGS) $@.o -o $@ $(EXTRA_LDFLAGS) $(LDFLAGS_$@)
+ $(Q)$(CC) $(filter-out $(LDFLAGS-OMIT-$@),$(LDFLAGS)) $@.o -o $@ $(EXTRA_LDFLAGS)
$(LDFLAGS_$@)
$(G_TARGETS): $(U_TARGET_SRCS) $(MAKE_SRCS)
$(showlink)
$(Q)$(HOSTCC) $(filter-out $(HOST_CFLAGS-OMIT-$(patsubst %_glibc,%,$@)),$(HOST_CFLAGS))
\
$(CFLAGS_$(notdir $(CURDIR))) $(CFLAGS_$(patsubst %_glibc,%,$@)) \
-c $(patsubst %_glibc,%,$(a)).c -o $@.o
- $(Q)$(HOSTCC) $(HOST_LDFLAGS) $@.o -o $@ $(EXTRA_LDFLAGS) $(LDFLAGS_$(patsubst
%_glibc,%,$@)) $(LDFLAGS_$@)
+ $(Q)$(HOSTCC) $(filter-out $(LDFLAGS-OMIT-$(patsubst %_glibc,%,$@)),$(HOST_LDFLAGS)) \
+ $@.o -o $@ $(EXTRA_LDFLAGS) $(LDFLAGS_$(patsubst %_glibc,%,$@)) $(LDFLAGS_$@)
shell_%:
diff --git a/test/dlopen/Makefile.in b/test/dlopen/Makefile.in
index 85996de..0bed0f7 100644
--- a/test/dlopen/Makefile.in
+++ b/test/dlopen/Makefile.in
@@ -5,7 +5,7 @@
export UCLIBC_ONLY := 1
TESTS := dltest dltest2 dlstatic test1 test2 test3 dlundef dlafk dladdr \
- testscope
+ testscope nodelete tst-origin
ifneq ($(HAVE_SHARED),y)
TESTS_DISABLED := test3
@@ -25,10 +25,19 @@ LDFLAGS_test2 := -ldl
LDFLAGS_test3 := -ldl ./libtest1.so ./libtest2.so -Wl,-rpath,.
LDFLAGS_dladdr := -ldl
LDFLAGS_testscope:= -ldl
+LDFLAGS_tst-origin:= -ldl -Wl,-rpath,\$$ORIGIN/testlib
DEBUG_LIBS := X
WRAPPER := env $(DEBUG_LIBS)=all LD_LIBRARY_PATH="$$PWD:.:$(LD_LIBRARY_PATH)"
+testlib:
+ @mkdir $@
+
+testlib/libtest31.so: libtest3.so | testlib
+ @cp $^ $@
+
+EXTRA_DIRS := testlib
+
# Build libC.so without -mprefergot compilation flag to force a
# R_SH_JMP_SLOT relocation instead of R_SH_GLOB_DAT for _libC_fini. This is
# needed to resolve the _libC_fini symbol when used (by libC.so destructor),
@@ -53,6 +62,7 @@ LDFLAGS_libafk.so := ./libafk-temp.so -Wl,-rpath,.
test1: libtest1.so
test2: libtest1.so libtest2.so
test3: libtest1.so libtest2.so
+tst-origin: testlib/libtest31.so
libtest1.so: libtest2.so
libB.so: libC.so
libA.so: libB.so
@@ -63,3 +73,10 @@ LDFLAGS_libtest3.so := -lpthread -Wl,-rpath,.
LDFLAGS_libC.so := -ldl
LDFLAGS_libB.so := ./libC.so -Wl,-rpath,.
LDFLAGS_libA.so := ./libB.so -Wl,-rpath,.
+
+nodelete: nodelmod1.so nodelmod2.so nodelmod3.so
+nodelmod3.so: nodelmod4.so
+LDFLAGS_nodelete := -rdynamic -ldl
+LDFLAGS_nodelmod1.so := -Wl,-z,nodelete
+LDFLAGS_nodelmod3.so := ./nodelmod4.so
+LDFLAGS_nodelmod4.so := -Wl,-z,nodelete
diff --git a/test/dlopen/nodelete.c b/test/dlopen/nodelete.c
new file mode 100644
index 0000000..07ff961
--- /dev/null
+++ b/test/dlopen/nodelete.c
@@ -0,0 +1,205 @@
+#include <dlfcn.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+static sigjmp_buf jmpbuf;
+
+
+int fini_ran;
+
+
+static void
+__attribute__ ((noreturn))
+handler (int sig)
+{
+ siglongjmp (jmpbuf, 1);
+}
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ /* We are testing the two possibilities to mark an object as not deletable:
+ - marked on the linker commandline with `-z nodelete'
+ - with the RTLD_NODELETE flag at dlopen()-time.
+
+ The test we are performing should be safe. We are loading the objects,
+ get the address of variables in the respective object, unload the object
+ and then try to read the variable. If the object is unloaded this
+ should lead to an segmentation fault. */
+ void *p;
+ struct sigaction sa;
+
+ sa.sa_handler = handler;
+ sigfillset (&sa.sa_mask);
+ sa.sa_flags = SA_RESTART;
+
+ if (sigaction (SIGSEGV, &sa, NULL) == -1)
+ puts ("cannot install signal handler: %m");
+
+ p = dlopen ("nodelmod1.so", RTLD_LAZY);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod1.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *varp;
+
+ varp = dlsym (p, "var1");
+ if (varp == NULL)
+ {
+ puts ("failed to get address of \"var1\" in
\"nodelmod1.so\"");
+ exit (1);
+ }
+ else
+ {
+ *varp = 20000720;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod1.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != 20000720)
+ {
+ puts ("\"var1\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod1.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("-z nodelete test succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod1.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ p = dlopen ("nodelmod2.so", RTLD_LAZY | RTLD_NODELETE);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod2.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *varp;
+
+ varp = dlsym (p, "var2");
+ if (varp == NULL)
+ {
+ puts ("failed to get address of \"var2\" in
\"nodelmod2.so\"");
+ exit (1);
+ }
+ else
+ {
+ *varp = 42;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod2.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != 42)
+ {
+ puts ("\"var2\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod2.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("RTLD_NODELETE test succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod2.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ p = dlopen ("nodelmod3.so", RTLD_LAZY);
+ if (p == NULL)
+ {
+ printf ("failed to load \"nodelmod3.so\": %s\n", dlerror ());
+ exit (1);
+ }
+ else
+ {
+ int *(*fctp) (void);
+
+ fctp = dlsym (p, "addr");
+ if (fctp == NULL)
+ {
+ puts ("failed to get address of \"addr\" in
\"nodelmod3.so\"");
+ exit (1);
+ }
+ else
+ {
+ int *varp = fctp ();
+
+ *varp = -1;
+
+ /* Now close the object. */
+ fini_ran = 0;
+ if (dlclose (p) != 0)
+ {
+ puts ("failed to close \"nodelmod3.so\"");
+ exit (1);
+ }
+ else if (! sigsetjmp (jmpbuf, 1))
+ {
+ /* Access the variable again. */
+ if (*varp != -1)
+ {
+ puts ("\"var_in_mod4\" value not correct");
+ exit (1);
+ }
+ else if (fini_ran != 0)
+ {
+ puts ("destructor of \"nodelmod4.so\" ran");
+ exit (1);
+ }
+ else
+ puts ("-z nodelete in dependency succeeded");
+ }
+ else
+ {
+ /* We caught an segmentation fault. */
+ puts ("\"nodelmod4.so\" got deleted!");
+ exit (1);
+ }
+ }
+ }
+
+ return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/test/dlopen/nodelmod1.c b/test/dlopen/nodelmod1.c
new file mode 100644
index 0000000..51be080
--- /dev/null
+++ b/test/dlopen/nodelmod1.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var1 = 42;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/nodelmod2.c b/test/dlopen/nodelmod2.c
new file mode 100644
index 0000000..ff2ffc2
--- /dev/null
+++ b/test/dlopen/nodelmod2.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var2 = 100;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/nodelmod3.c b/test/dlopen/nodelmod3.c
new file mode 100644
index 0000000..817c94d
--- /dev/null
+++ b/test/dlopen/nodelmod3.c
@@ -0,0 +1,8 @@
+extern int var_in_mod4;
+extern int *addr (void);
+
+int *
+addr (void)
+{
+ return &var_in_mod4;
+}
diff --git a/test/dlopen/nodelmod4.c b/test/dlopen/nodelmod4.c
new file mode 100644
index 0000000..d7fa893
--- /dev/null
+++ b/test/dlopen/nodelmod4.c
@@ -0,0 +1,10 @@
+extern int fini_ran;
+
+int var_in_mod4 = 99;
+
+static void
+__attribute__ ((__destructor__))
+destr (void)
+{
+ fini_ran = 1;
+}
diff --git a/test/dlopen/test2.c b/test/dlopen/tst-origin.c
similarity index 51%
copy from test/dlopen/test2.c
copy to test/dlopen/tst-origin.c
index d8428f7..a12be41 100644
--- a/test/dlopen/test2.c
+++ b/test/dlopen/tst-origin.c
@@ -8,32 +8,30 @@ extern void _dlinfo(void);
#endif
int main(int argc, char **argv) {
- void *handle;
+ void *h1, *h2;
int (*mydltest)(const char *s);
char *error;
- handle = dlopen ("./libtest2.so", RTLD_LAZY);
- if (!handle) {
- fprintf(stderr, "Could not open ./libtest2.so: %s\n", dlerror());
+ h1 = dlopen ("libtest31.so", RTLD_LAZY);
+ if (!h1) {
+ fprintf(stderr, "Could not open libtest31.so: %s\n", dlerror());
exit(1);
}
- handle = dlopen ("./libtest1.so", RTLD_LAZY);
- if (!handle) {
- fprintf(stderr, "Could not open ./libtest1.so: %s\n", dlerror());
+ h2 = dlopen ("libtest31.so", RTLD_NOLOAD);
+ if (!h2) {
+ fprintf(stderr, "Could not open libtest31.so(RTLD_NOLOAD): %s\n",
dlerror());
exit(1);
}
- mydltest = dlsym(handle, "dltest");
+ mydltest = dlsym(h1, "dltest");
if ((error = dlerror()) != NULL) {
fprintf(stderr, "Could not locate symbol 'dltest': %s\n", error);
exit(1);
}
- mydltest("hello world!");
-
- dlclose(handle);
+ dlclose(h2);
+ dlclose(h1);
return EXIT_SUCCESS;
}
-
hooks/post-receive
--
uClibc-ng - small C library for embedded systems