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authorWaldemar Brodkorb <wbx@openadk.org>2024-03-03 09:45:27 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2024-03-03 09:45:27 +0100
commit5f662ea93f1229f2cd9df67a27cc850bc856c75b (patch)
tree14d6bb27b89203eea5ec153e0a9a2a047debb0e9 /libpthread/nptl/sysdeps/riscv32/libc-tls.c
parentc07daae85e85e6e5db12d671ae85e08e182bc94f (diff)
riscv32: add basic support for NPTL
Diffstat (limited to 'libpthread/nptl/sysdeps/riscv32/libc-tls.c')
-rw-r--r--libpthread/nptl/sysdeps/riscv32/libc-tls.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/riscv32/libc-tls.c b/libpthread/nptl/sysdeps/riscv32/libc-tls.c
new file mode 100644
index 000000000..8c601c06d
--- /dev/null
+++ b/libpthread/nptl/sysdeps/riscv32/libc-tls.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2005-2016 Free Software Foundation, Inc.
+
+ 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 <sysdeps/generic/libc-tls.c>
+#include <dl-tls.h>
+
+/* On RISC-V 32, linker optimizations are not required, so __tls_get_addr
+ can be called even in statically linked binaries. In this case module
+ must be always 1 and PT_TLS segment exist in the binary, otherwise it
+ would not link. */
+
+#if defined(USE_TLS) && USE_TLS
+
+void *
+__tls_get_addr (tls_index *ti)
+{
+ dtv_t *dtv = THREAD_DTV ();
+ return (char *) dtv[1].pointer.val + ti->ti_offset;
+}
+
+#endif