aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2002-02-11 06:00:19 +0000
committerUlrich Drepper <drepper@redhat.com>2002-02-11 06:00:19 +0000
commit2e36cb48e524a8877b56bb61da1a78babb3ef703 (patch)
treeeb2512f6c6ec12bcafd6a2356413a0f0ad3cead0
parent7670e25ad5ac4e72b3fb63ea5e99159d30054d6f (diff)
downloadglibc-2e36cb48e524a8877b56bb61da1a78babb3ef703.zip
glibc-2e36cb48e524a8877b56bb61da1a78babb3ef703.tar.gz
glibc-2e36cb48e524a8877b56bb61da1a78babb3ef703.tar.bz2
Update.
* elf/tst-tls3.c: New file. * elf/tst-tlsmod1.c: New file. * elf/Makefile: Add rules to build and run tst-tls3. * sysdeps/i386/dl-machine.h: Include <tls.h>. (elf_machine_type_class): Set ELF_RTYPE_CLASS_PLT also for the three TLS relocations.
-rw-r--r--ChangeLog8
-rw-r--r--elf/Makefile8
-rw-r--r--elf/tst-tls3.c69
-rw-r--r--elf/tst-tlsmod1.c63
-rw-r--r--sysdeps/i386/dl-machine.h19
5 files changed, 161 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index 60b0ca2..3ca94d0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
2002-02-10 Ulrich Drepper <drepper@redhat.com>
+ * elf/tst-tls3.c: New file.
+ * elf/tst-tlsmod1.c: New file.
+ * elf/Makefile: Add rules to build and run tst-tls3.
+
+ * sysdeps/i386/dl-machine.h: Include <tls.h>.
+ (elf_machine_type_class): Set ELF_RTYPE_CLASS_PLT also for the three
+ TLS relocations.
+
* elf/do-lookup.h (FCT): st_value can be zero for STT_TLS symbols.
* po/fr.po: Update from translation team.
diff --git a/elf/Makefile b/elf/Makefile
index 472dcfd..9c5d4f6 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -118,7 +118,8 @@ tests = loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
reldep reldep2 reldep3 reldep4 $(tests-nodelete-$(have-z-nodelete)) \
$(tests-nodlopen-$(have-z-nodlopen)) neededtest neededtest2 \
neededtest3 neededtest4 unload2 lateglobal initfirst global \
- restest2 next dblload dblunload reldep5 reldep6 tst-tls1 tst-tls2
+ restest2 next dblload dblunload reldep5 reldep6 tst-tls1 tst-tls2 \
+ tst-tls3
test-srcs = tst-pathopt
tests-vis-yes = vismain
tests-nodelete-yes = nodelete
@@ -135,7 +136,8 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
neededobj5 neededobj6 firstobj globalmod1 \
unload2mod unload2dep ltglobmod1 ltglobmod2 pathoptobj \
dblloadmod1 dblloadmod2 dblloadmod3 reldepmod5 reldepmod6 \
- reldep6mod0 reldep6mod1 reldep6mod2 reldep6mod3 reldep6mod4
+ reldep6mod0 reldep6mod1 reldep6mod2 reldep6mod3 reldep6mod4 \
+ tst-tlsmod1
modules-vis-yes = vismod1 vismod2 vismod3
modules-nodelete-yes = nodelmod1 nodelmod2 nodelmod3 nodelmod4
modules-nodlopen-yes = nodlopenmod nodlopenmod2
@@ -438,3 +440,5 @@ $(objpfx)reldep5.out: $(objpfx)reldepmod5.so $(objpfx)reldepmod5.so
$(objpfx)reldep6: $(libdl)
$(objpfx)reldep6.out: $(objpfx)reldep6mod3.so $(objpfx)reldep6mod4.so
+
+$(objpfx)tst-tls3: $(objpfx)tst-tlsmod1.so
diff --git a/elf/tst-tls3.c b/elf/tst-tls3.c
new file mode 100644
index 0000000..c86f184
--- /dev/null
+++ b/elf/tst-tls3.c
@@ -0,0 +1,69 @@
+/* glibc test for TLS in ld.so. */
+#include <stdio.h>
+
+#include <tls.h>
+#include "tls-macros.h"
+
+
+/* One define int variable, two externs. */
+COMMON_INT_DECL(foo);
+VAR_INT_DECL(bar);
+VAR_INT_DEF(baz);
+
+
+extern int in_dso (void);
+
+
+int
+main (void)
+{
+#ifdef USE_TLS
+ int result = 0;
+ int *ap, *bp, *cp;
+
+
+ /* Set the variable using the local exec model. */
+ puts ("set baz to 3 (LE)");
+ ap = TLS_LE (baz);
+ *ap = 3;
+
+
+ /* Get variables using initial exec model. */
+ puts ("set variables foo and bar (IE)");
+ ap = TLS_IE (foo);
+ *ap = 1;
+ bp = TLS_IE (bar);
+ *bp = 2;
+
+
+ /* Get variables using local dynamic model. */
+ fputs ("get sum of foo, bar (GD) and baz (LD)", stdout);
+ ap = TLS_GD (foo);
+ bp = TLS_GD (bar);
+ cp = TLS_LD (baz);
+ printf (" = %d\n", *ap + *bp + *cp);
+ result |= *ap + *bp + *cp != 6;
+ if (*ap != 1)
+ {
+ printf ("foo = %d\n", *ap);
+ result = 1;
+ }
+ if (*bp != 2)
+ {
+ printf ("bar = %d\n", *bp);
+ result = 1;
+ }
+ if (*cp != 3)
+ {
+ printf ("baz = %d\n", *cp);
+ result = 1;
+ }
+
+
+ result |= in_dso ();
+
+ return result;
+#else
+ return 0;
+#endif
+}
diff --git a/elf/tst-tlsmod1.c b/elf/tst-tlsmod1.c
new file mode 100644
index 0000000..3a63286
--- /dev/null
+++ b/elf/tst-tlsmod1.c
@@ -0,0 +1,63 @@
+#include <stdio.h>
+
+#include <tls.h>
+#include "tls-macros.h"
+
+
+/* One define int variable, two externs. */
+COMMON_INT_DEF(foo);
+VAR_INT_DEF(bar);
+VAR_INT_DECL(baz);
+
+
+int
+in_dso (void)
+{
+ int result = 0;
+#ifdef USE_TLS
+ int *ap, *bp, *cp;
+
+ /* Get variables using initial exec model. */
+ fputs ("get sum of foo and bar (IE)", stdout);
+ ap = TLS_IE (foo);
+ bp = TLS_IE (bar);
+ printf (" = %d\n", *ap + *bp);
+ result |= *ap + *bp != 3;
+ if (*ap != 1)
+ {
+ printf ("foo = %d\n", *ap);
+ result = 1;
+ }
+ if (*bp != 2)
+ {
+ printf ("bar = %d\n", *bp);
+ result = 1;
+ }
+
+
+ /* Get variables using generic dynamic model. */
+ fputs ("get sum of foo and bar and baz (GD)", stdout);
+ ap = TLS_GD (foo);
+ bp = TLS_GD (bar);
+ cp = TLS_GD (baz);
+ printf (" = %d\n", *ap + *bp + *cp);
+ result |= *ap + *bp + *cp != 6;
+ if (*ap != 1)
+ {
+ printf ("foo = %d\n", *ap);
+ result = 1;
+ }
+ if (*bp != 2)
+ {
+ printf ("bar = %d\n", *bp);
+ result = 1;
+ }
+ if (*cp != 3)
+ {
+ printf ("baz = %d\n", *cp);
+ result = 1;
+ }
+#endif
+
+ return result;
+}
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 3e47180..9ae18a4 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -24,6 +24,8 @@
#include <sys/param.h>
+#include <tls.h>
+
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int __attribute__ ((unused))
elf_machine_matches_host (const Elf32_Ehdr *ehdr)
@@ -255,13 +257,22 @@ _dl_start_user:\n\
# define RTLD_START_SPECIAL_INIT /* nothing */
#endif
-/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
- PLT entries should not be allowed to define the value.
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
+ TLS variable, so undefined references should not be allowed to
+ define the value.
ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
of the main executable's symbols, as for a COPY reloc. */
-#define elf_machine_type_class(type) \
- ((((type) == R_386_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
+#ifdef USE_TLS
+# define elf_machine_type_class(type) \
+ ((((type) == R_386_JMP_SLOT || (type) == R_386_TLS_DTPMOD32 \
+ || (type) == R_386_TLS_DTPOFF32 || (type) == R_386_TLS_TPOFF32) \
+ * ELF_RTYPE_CLASS_PLT) \
| (((type) == R_386_COPY) * ELF_RTYPE_CLASS_COPY))
+#else
+# define elf_machine_type_class(type) \
+ ((((type) == R_386_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == R_386_COPY) * ELF_RTYPE_CLASS_COPY))
+#endif
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
#define ELF_MACHINE_JMP_SLOT R_386_JMP_SLOT