107 lines
3.2 KiB
Diff
107 lines
3.2 KiB
Diff
diff --git a/elf/Makefile b/elf/Makefile
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index 7315c253..b3205c26 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -1507,4 +1507,4 @@ $(objpfx)tst-big-note: $(objpfx)tst-big-note-lib.so
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$(objpfx)tst-unwind-ctor: $(objpfx)tst-unwind-ctor-lib.so
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-CFLAGS-tst-unwind-main.c += -funwind-tables
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+CFLAGS-tst-unwind-main.c += -funwind-tables -DUSE_PTHREADS=0
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diff --git a/elf/tst-unwind-main.c b/elf/tst-unwind-main.c
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index 4089e7e9..0c345dc3 100644
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--- a/elf/tst-unwind-main.c
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+++ b/elf/tst-unwind-main.c
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@@ -20,19 +20,41 @@
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#include <unistd.h>
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#include <support/test-driver.h>
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+#if USE_PTHREADS
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+# include <pthread.h>
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+# include <error.h>
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+#endif
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+
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static _Unwind_Reason_Code
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callback (struct _Unwind_Context *ctx, void *arg)
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{
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return _URC_NO_REASON;
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}
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-int
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-main (void)
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+static void *
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+func (void *a)
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{
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/* Arrange for this test to be killed if _Unwind_Backtrace runs into an
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endless loop. We cannot use the test driver because the complete
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call chain needs to be compiled with -funwind-tables so that
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- _Unwind_Backtrace is able to reach _start. */
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+ _Unwind_Backtrace is able to reach the start routine. */
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alarm (DEFAULT_TIMEOUT);
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_Unwind_Backtrace (callback, 0);
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+ return a;
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+}
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+
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+int
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+main (void)
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+{
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+#if USE_PTHREADS
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+ pthread_t thr;
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+ int rc = pthread_create (&thr, NULL, &func, NULL);
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+ if (rc)
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+ error (1, rc, "pthread_create");
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+ rc = pthread_join (thr, NULL);
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+ if (rc)
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+ error (1, rc, "pthread_join");
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+#else
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+ func (NULL);
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+#endif
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}
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diff --git a/nptl/Makefile b/nptl/Makefile
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index 0e316edf..8719f4ef 100644
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--- a/nptl/Makefile
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+++ b/nptl/Makefile
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@@ -320,7 +320,8 @@ tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
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tst-cnd-timedwait tst-thrd-detach tst-mtx-basic tst-thrd-sleep \
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tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
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tst-rwlock-pwn \
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- tst-rwlock-tryrdlock-stall tst-rwlock-trywrlock-stall
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+ tst-rwlock-tryrdlock-stall tst-rwlock-trywrlock-stall \
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+ tst-unwind-thread
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tests-internal := tst-rwlock19 tst-rwlock20 \
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tst-sem11 tst-sem12 tst-sem13 \
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@@ -710,6 +711,8 @@ $(objpfx)tst-audit-threads: $(objpfx)tst-audit-threads-mod2.so
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$(objpfx)tst-audit-threads.out: $(objpfx)tst-audit-threads-mod1.so
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tst-audit-threads-ENV = LD_AUDIT=$(objpfx)tst-audit-threads-mod1.so
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+CFLAGS-tst-unwind-thread.c += -funwind-tables
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+
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# The tests here better do not run in parallel
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ifneq ($(filter %tests,$(MAKECMDGOALS)),)
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.NOTPARALLEL:
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diff --git a/nptl/tst-unwind-thread.c b/nptl/tst-unwind-thread.c
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new file mode 100644
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index 00000000..d5c38e37
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--- /dev/null
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+++ b/nptl/tst-unwind-thread.c
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@@ -0,0 +1,2 @@
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+#define USE_PTHREADS 1
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+#include "../elf/tst-unwind-main.c"
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diff --git a/sysdeps/unix/sysv/linux/riscv/clone.S b/sysdeps/unix/sysv/linux/riscv/clone.S
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index c079c1fb..0ff9ab3f 100644
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--- a/sysdeps/unix/sysv/linux/riscv/clone.S
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+++ b/sysdeps/unix/sysv/linux/riscv/clone.S
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@@ -69,6 +69,11 @@ L (error):
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ENTRY (__thread_start)
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L (thread_start):
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+ /* Terminate call stack by noting ra is undefined. Use a dummy
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+ .cfi_label to force starting the FDE. */
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+ .cfi_label .Ldummy
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+ cfi_undefined (ra)
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+
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/* Restore the arg for user's function. */
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REG_L a1,0(sp) /* Function pointer. */
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REG_L a0,SZREG(sp) /* Argument pointer. */
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