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authorWaldemar Brodkorb <wbx@openadk.org>2019-10-16 00:24:18 (GMT)
committerWaldemar Brodkorb <wbx@openadk.org>2019-10-31 23:39:10 (GMT)
commit60eae0def70b8a2e768c6a5bec352da9d648b26c (patch)
tree9317f3e850bbccd618c274a25bd3deadee5f5549 /libc
parent01e863c89fc772a406fe56c6dddb39f71a570c06 (diff)
riscv64: add shared library support
Diffstat (limited to 'libc')
-rw-r--r--libc/misc/internals/__uClibc_main.c2
-rw-r--r--libc/sysdeps/linux/riscv64/bits/uClibc_arch_features.h2
-rw-r--r--libc/sysdeps/linux/riscv64/bits/uClibc_page.h34
3 files changed, 36 insertions, 2 deletions
diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c
index affa0ce..6611090 100644
--- a/libc/misc/internals/__uClibc_main.c
+++ b/libc/misc/internals/__uClibc_main.c
@@ -500,7 +500,6 @@ void __uClibc_main(int (*main)(int, char **, char **), int argc,
#endif
}
# endif
-#endif
/* Note: It is possible that any initialization done above could
* have resulted in errno being set nonzero, so set it to 0 before
@@ -512,6 +511,7 @@ void __uClibc_main(int (*main)(int, char **, char **), int argc,
/* Set h_errno to 0 as well */
if (likely(not_null_ptr(__h_errno_location)))
*(__h_errno_location()) = 0;
+#endif
#if defined HAVE_CLEANUP_JMP_BUF && defined __UCLIBC_HAS_THREADS_NATIVE__
/* Memory for the cancellation buffer. */
diff --git a/libc/sysdeps/linux/riscv64/bits/uClibc_arch_features.h b/libc/sysdeps/linux/riscv64/bits/uClibc_arch_features.h
index b754f32..94ec2f5 100644
--- a/libc/sysdeps/linux/riscv64/bits/uClibc_arch_features.h
+++ b/libc/sysdeps/linux/riscv64/bits/uClibc_arch_features.h
@@ -8,7 +8,7 @@
#undef __UCLIBC_ABORT_INSTRUCTION__
/* can your target use syscall6() for mmap ? */
-#undef __UCLIBC_MMAP_HAS_6_ARGS__
+#define __UCLIBC_MMAP_HAS_6_ARGS__
#define __UCLIBC_SYSCALL_ALIGN_64BIT__
diff --git a/libc/sysdeps/linux/riscv64/bits/uClibc_page.h b/libc/sysdeps/linux/riscv64/bits/uClibc_page.h
new file mode 100644
index 0000000..4792d37
--- /dev/null
+++ b/libc/sysdeps/linux/riscv64/bits/uClibc_page.h
@@ -0,0 +1,34 @@
+/* Copyright (C) 2004 Erik Andersen
+ *
+ * This 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; see the file COPYING.LIB. If
+ * not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Supply an architecture specific value for PAGE_SIZE and friends. */
+
+#ifndef _UCLIBC_PAGE_H
+#define _UCLIBC_PAGE_H
+
+/* PAGE_SHIFT determines the page size -- in this case 4096 */
+#define PAGE_SHIFT 13
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+/* Some architectures always use 12 as page shift for mmap2() eventhough the
+ * real PAGE_SHIFT != 12. Other architectures use the same value as
+ * PAGE_SHIFT...
+ */
+#define MMAP2_PAGE_SHIFT PAGE_SHIFT
+
+#endif /* _UCLIBC_PAGE_H */