glibc: initial port of glibc 2.20

34 files changed, 350 insertions, 0 deletions

diff --git a/linux-headers/include/asm/asm-offsets.h b/linux-headers/include/asm/asm-offsets.h
new file mode 100644
index 0000000..d370ee3
--- /dev/null
+++ b/linux-headers/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/linux-headers/include/asm/auxvec.h b/linux-headers/include/asm/auxvec.h
new file mode 100644
index 0000000..41fa68b
--- /dev/null
+++ b/linux-headers/include/asm/auxvec.h
@@ -0,0 +1 @@
+#include <asm-generic/auxvec.h>
diff --git a/linux-headers/include/asm/bitsperlong.h b/linux-headers/include/asm/bitsperlong.h
new file mode 100644
index 0000000..f67718d
--- /dev/null
+++ b/linux-headers/include/asm/bitsperlong.h
@@ -0,0 +1,21 @@
+#ifndef __ASM_RISCV_BITS_PER_LONG
+#define __ASM_RISCV_BITS_PER_LONG
+
+/*
+ * There seems to be no way of detecting this automatically from user
+ * space, so 64 bit architectures should override this in their
+ * bitsperlong.h. In particular, an architecture that supports
+ * both 32 and 64 bit user space must not rely on CONFIG_64BIT
+ * to decide it, but rather check a compiler provided macro.
+ */
+#ifndef __BITS_PER_LONG
+#if _RISCV_SIM == _ABI64
+#define __BITS_PER_LONG 64
+#elif _RISCV_SIM == _ABI32
+#define __BITS_PER_LONG 32
+#else
+#error Unknown word length
+#endif
+#endif /* __BITS_PER_LONG */
+
+#endif /* __ASM_RISCV_BITS_PER_LONG */
diff --git a/linux-headers/include/asm/byteorder.h b/linux-headers/include/asm/byteorder.h
new file mode 100644
index 0000000..994a61a
--- /dev/null
+++ b/linux-headers/include/asm/byteorder.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_RISCV_BYTEORDER_H
+#define _ASM_RISCV_BYTEORDER_H
+
+#if defined(__RISCVEL__)
+#include <linux/byteorder/little_endian.h>
+#elif defined(__RISCVEB__)
+#include <linux/byteorder/big_endian.h>
+#else
+#error "Unknown endianness"
+#endif
+
+#endif /* _ASM_RISCV_BYTEORDER_H */
diff --git a/linux-headers/include/asm/csr.h b/linux-headers/include/asm/csr.h
new file mode 100644
index 0000000..5042bea
--- /dev/null
+++ b/linux-headers/include/asm/csr.h
@@ -0,0 +1,125 @@
+#ifndef _ASM_RISCV_CSR_H
+#define _ASM_RISCV_CSR_H
+
+#include <linux/const.h>
+
+/* Status register flags */
+#define SR_S    _AC(0x00000001,UL) /* Supervisor */
+#define SR_PS   _AC(0x00000002,UL) /* Previous supervisor */
+#define SR_EI   _AC(0x00000004,UL) /* Enable interrupts */
+#define SR_PEI  _AC(0x00000008,UL) /* Previous EI */
+#define SR_EF   _AC(0x00000010,UL) /* Enable floating-point */
+#define SR_U64  _AC(0x00000020,UL) /* RV64 user mode */
+#define SR_S64  _AC(0x00000040,UL) /* RV64 supervisor mode */
+#define SR_VM   _AC(0x00000080,UL) /* Enable virtual memory */
+#define SR_IM   _AC(0x00FF0000,UL) /* Interrupt mask */
+#define SR_IP   _AC(0xFF000000,UL) /* Pending interrupts */
+
+#define SR_IM_SHIFT     16
+#define SR_IM_MASK(n)   ((_AC(1,UL)) << ((n) + SR_IM_SHIFT))
+
+#define EXC_INST_MISALIGNED     0
+#define EXC_INST_ACCESS         1
+#define EXC_SYSCALL             6
+#define EXC_LOAD_MISALIGNED     8
+#define EXC_STORE_MISALIGNED    9
+#define EXC_LOAD_ACCESS         10
+#define EXC_STORE_ACCESS        11
+
+#ifndef __ASSEMBLY__
+
+#define CSR_ZIMM(val) \
+	(__builtin_constant_p(val) && ((unsigned long)(val) < 0x20))
+
+#define csr_swap(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(__v)) { 					\
+		__asm__ __volatile__ (				\
+			"csrrw %0, " #csr ", %1"		\
+			: "=r" (__v) : "i" (__v));		\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrrw %0, " #csr ", %1"		\
+			: "=r" (__v) : "r" (__v));		\
+	}							\
+	__v;							\
+})
+
+#define csr_read(csr)						\
+({								\
+	register unsigned long __v;				\
+	__asm__ __volatile__ (					\
+		"csrr %0, " #csr : "=r" (__v));			\
+	__v;							\
+})
+
+#define csr_write(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(__v)) {					\
+		__asm__ __volatile__ (				\
+			"csrw " #csr ", %0" : : "i" (__v));	\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrw " #csr ", %0" : : "r" (__v));	\
+	}							\
+})
+
+#define csr_read_set(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(val)) {					\
+		__asm__ __volatile__ (				\
+			"csrrs %0, " #csr ", %1"		\
+			: "=r" (__v) : "i" (__v));		\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrrs %0, " #csr ", %1"		\
+			: "=r" (__v) : "r" (__v));		\
+	}							\
+	__v;							\
+})
+
+#define csr_set(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(__v)) {					\
+		__asm__ __volatile__ (				\
+			"csrs " #csr ", %0" : : "i" (__v));	\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrs " #csr ", %0" : : "r" (__v));	\
+	}							\
+})
+
+#define csr_read_clear(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(__v)) {					\
+		__asm__ __volatile__ (				\
+			"csrrc %0, " #csr ", %1"		\
+			: "=r" (__v) : "i" (__v));		\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrrc %0, " #csr ", %1"		\
+			: "=r" (__v) : "r" (__v));		\
+	}							\
+	__v;							\
+})
+
+#define csr_clear(csr,val)					\
+({								\
+	typeof(val) __v = (val);				\
+	if (CSR_ZIMM(__v)) {					\
+		__asm__ __volatile__ (				\
+			"csrc " #csr ", %0" : : "i" (__v));	\
+	} else {						\
+		__asm__ __volatile__ (				\
+			"csrc " #csr ", %0" : : "r" (__v));	\
+	}							\
+})
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_RISCV_CSR_H */
diff --git a/linux-headers/include/asm/errno.h b/linux-headers/include/asm/errno.h
new file mode 100644
index 0000000..4c82b50
--- /dev/null
+++ b/linux-headers/include/asm/errno.h
@@ -0,0 +1 @@
+#include <asm-generic/errno.h>
diff --git a/linux-headers/include/asm/fcntl.h b/linux-headers/include/asm/fcntl.h
new file mode 100644
index 0000000..46ab12d
--- /dev/null
+++ b/linux-headers/include/asm/fcntl.h
@@ -0,0 +1 @@
+#include <asm-generic/fcntl.h>
diff --git a/linux-headers/include/asm/ioctl.h b/linux-headers/include/asm/ioctl.h
new file mode 100644
index 0000000..b279fe0
--- /dev/null
+++ b/linux-headers/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/linux-headers/include/asm/ioctls.h b/linux-headers/include/asm/ioctls.h
new file mode 100644
index 0000000..ec34c76
--- /dev/null
+++ b/linux-headers/include/asm/ioctls.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctls.h>
diff --git a/linux-headers/include/asm/ipcbuf.h b/linux-headers/include/asm/ipcbuf.h
new file mode 100644
index 0000000..84c7e51
--- /dev/null
+++ b/linux-headers/include/asm/ipcbuf.h
@@ -0,0 +1 @@
+#include <asm-generic/ipcbuf.h>
diff --git a/linux-headers/include/asm/mman.h b/linux-headers/include/asm/mman.h
new file mode 100644
index 0000000..8eebf89
--- /dev/null
+++ b/linux-headers/include/asm/mman.h
@@ -0,0 +1 @@
+#include <asm-generic/mman.h>
diff --git a/linux-headers/include/asm/msgbuf.h b/linux-headers/include/asm/msgbuf.h
new file mode 100644
index 0000000..809134c
--- /dev/null
+++ b/linux-headers/include/asm/msgbuf.h
@@ -0,0 +1 @@
+#include <asm-generic/msgbuf.h>
diff --git a/linux-headers/include/asm/param.h b/linux-headers/include/asm/param.h
new file mode 100644
index 0000000..965d454
--- /dev/null
+++ b/linux-headers/include/asm/param.h
@@ -0,0 +1 @@
+#include <asm-generic/param.h>
diff --git a/linux-headers/include/asm/poll.h b/linux-headers/include/asm/poll.h
new file mode 100644
index 0000000..c98509d
--- /dev/null
+++ b/linux-headers/include/asm/poll.h
@@ -0,0 +1 @@
+#include <asm-generic/poll.h>
diff --git a/linux-headers/include/asm/posix_types.h b/linux-headers/include/asm/posix_types.h
new file mode 100644
index 0000000..22cae62
--- /dev/null
+++ b/linux-headers/include/asm/posix_types.h
@@ -0,0 +1 @@
+#include <asm-generic/posix_types.h>
diff --git a/linux-headers/include/asm/ptrace.h b/linux-headers/include/asm/ptrace.h
new file mode 100644
index 0000000..054d8bf
--- /dev/null
+++ b/linux-headers/include/asm/ptrace.h
@@ -0,0 +1,76 @@
+#ifndef _ASM_RISCV_PTRACE_H
+#define _ASM_RISCV_PTRACE_H
+
+#include <asm/csr.h>
+
+#ifndef __ASSEMBLY__
+
+typedef struct pt_regs {
+	unsigned long zero;
+	unsigned long ra;
+	unsigned long s[12];
+	unsigned long sp;
+	unsigned long tp;
+	unsigned long v[2];
+	unsigned long a[8];
+	unsigned long t[5];
+	unsigned long gp;
+	/* PCRs */
+	unsigned long status;
+	unsigned long epc;
+	unsigned long badvaddr;
+	unsigned long cause;
+	/* For restarting system calls */
+	unsigned long syscallno;
+} pt_regs;
+
+#define user_mode(regs) (((regs)->status & SR_PS) == 0)
+
+
+/* Helpers for working with the instruction pointer */
+#define GET_IP(regs) ((regs)->epc)
+#define SET_IP(regs, val) (GET_IP(regs) = (val))
+
+static __inline__ unsigned long instruction_pointer(struct pt_regs *regs)
+{
+	return GET_IP(regs);
+}
+static __inline__ void instruction_pointer_set(struct pt_regs *regs,
+                                           unsigned long val)
+{
+	SET_IP(regs, val);
+}
+
+#define profile_pc(regs) instruction_pointer(regs)
+
+/* Helpers for working with the user stack pointer */
+#define GET_USP(regs) ((regs)->sp)
+#define SET_USP(regs, val) (GET_USP(regs) = (val))
+
+static __inline__ unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+	return GET_USP(regs);
+}
+static __inline__ void user_stack_pointer_set(struct pt_regs *regs,
+                                          unsigned long val)
+{
+	SET_USP(regs, val);
+}
+
+/* Helpers for working with the frame pointer */
+#define GET_FP(regs) ((regs)->s[0])
+#define SET_FP(regs, val) (GET_FP(regs) = (val))
+
+static __inline__ unsigned long frame_pointer(struct pt_regs *regs)
+{
+	return GET_FP(regs);
+}
+static __inline__ void frame_pointer_set(struct pt_regs *regs,
+                                     unsigned long val)
+{
+	SET_FP(regs, val);
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_RISCV_PTRACE_H */
diff --git a/linux-headers/include/asm/resource.h b/linux-headers/include/asm/resource.h
new file mode 100644
index 0000000..04bc4db
--- /dev/null
+++ b/linux-headers/include/asm/resource.h
@@ -0,0 +1 @@
+#include <asm-generic/resource.h>
diff --git a/linux-headers/include/asm/sembuf.h b/linux-headers/include/asm/sembuf.h
new file mode 100644
index 0000000..7673b83
--- /dev/null
+++ b/linux-headers/include/asm/sembuf.h
@@ -0,0 +1 @@
+#include <asm-generic/sembuf.h>
diff --git a/linux-headers/include/asm/setup.h b/linux-headers/include/asm/setup.h
new file mode 100644
index 0000000..8ee375d
--- /dev/null
+++ b/linux-headers/include/asm/setup.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_RISCV_SETUP_H
+#define _ASM_RISCV_SETUP_H
+
+
+#include <asm-generic/setup.h>
+
+#endif /* _ASM_RISCV_SETUP_H */
diff --git a/linux-headers/include/asm/shmbuf.h b/linux-headers/include/asm/shmbuf.h
new file mode 100644
index 0000000..83c05fc
--- /dev/null
+++ b/linux-headers/include/asm/shmbuf.h
@@ -0,0 +1 @@
+#include <asm-generic/shmbuf.h>
diff --git a/linux-headers/include/asm/sigcontext.h b/linux-headers/include/asm/sigcontext.h
new file mode 100644
index 0000000..6d89223
--- /dev/null
+++ b/linux-headers/include/asm/sigcontext.h
@@ -0,0 +1,21 @@
+#ifndef __ASM_RISCV_SIGCONTEXT_H
+#define __ASM_RISCV_SIGCONTEXT_H
+
+/* This struct is saved by setup_frame in signal.c, to keep the current
+ * context while a signal handler is executed. It is restored by sys_sigreturn.
+ */
+
+struct sigcontext {
+	unsigned long zero;
+	unsigned long ra;
+	unsigned long s[12];
+	unsigned long sp;
+	unsigned long tp;
+	unsigned long v[2];
+	unsigned long a[8];
+	unsigned long t[5];
+	unsigned long gp;
+	unsigned long epc;
+};
+
+#endif /* __ASM_RISCV_SIGCONTEXT_H */
diff --git a/linux-headers/include/asm/siginfo.h b/linux-headers/include/asm/siginfo.h
new file mode 100644
index 0000000..0815d29
--- /dev/null
+++ b/linux-headers/include/asm/siginfo.h
@@ -0,0 +1 @@
+#include <asm-generic/siginfo.h>
diff --git a/linux-headers/include/asm/signal.h b/linux-headers/include/asm/signal.h
new file mode 100644
index 0000000..7b1573c
--- /dev/null
+++ b/linux-headers/include/asm/signal.h
@@ -0,0 +1 @@
+#include <asm-generic/signal.h>
diff --git a/linux-headers/include/asm/socket.h b/linux-headers/include/asm/socket.h
new file mode 100644
index 0000000..6b71384
--- /dev/null
+++ b/linux-headers/include/asm/socket.h
@@ -0,0 +1 @@
+#include <asm-generic/socket.h>
diff --git a/linux-headers/include/asm/sockios.h b/linux-headers/include/asm/sockios.h
new file mode 100644
index 0000000..def6d47
--- /dev/null
+++ b/linux-headers/include/asm/sockios.h
@@ -0,0 +1 @@
+#include <asm-generic/sockios.h>
diff --git a/linux-headers/include/asm/stat.h b/linux-headers/include/asm/stat.h
new file mode 100644
index 0000000..3dc90fa
--- /dev/null
+++ b/linux-headers/include/asm/stat.h
@@ -0,0 +1 @@
+#include <asm-generic/stat.h>
diff --git a/linux-headers/include/asm/statfs.h b/linux-headers/include/asm/statfs.h
new file mode 100644
index 0000000..0b91fe1
--- /dev/null
+++ b/linux-headers/include/asm/statfs.h
@@ -0,0 +1 @@
+#include <asm-generic/statfs.h>
diff --git a/linux-headers/include/asm/swab.h b/linux-headers/include/asm/swab.h
new file mode 100644
index 0000000..7847e56
--- /dev/null
+++ b/linux-headers/include/asm/swab.h
@@ -0,0 +1 @@
+#include <asm-generic/swab.h>
diff --git a/linux-headers/include/asm/termbits.h b/linux-headers/include/asm/termbits.h
new file mode 100644
index 0000000..3935b10
--- /dev/null
+++ b/linux-headers/include/asm/termbits.h
@@ -0,0 +1 @@
+#include <asm-generic/termbits.h>
diff --git a/linux-headers/include/asm/termios.h b/linux-headers/include/asm/termios.h
new file mode 100644
index 0000000..280d78a
--- /dev/null
+++ b/linux-headers/include/asm/termios.h
@@ -0,0 +1 @@
+#include <asm-generic/termios.h>
diff --git a/linux-headers/include/asm/types.h b/linux-headers/include/asm/types.h
new file mode 100644
index 0000000..b9e79bc
--- /dev/null
+++ b/linux-headers/include/asm/types.h
@@ -0,0 +1 @@
+#include <asm-generic/types.h>
diff --git a/linux-headers/include/asm/unistd.h b/linux-headers/include/asm/unistd.h
new file mode 100644
index 0000000..a216ab3
--- /dev/null
+++ b/linux-headers/include/asm/unistd.h
@@ -0,0 +1,29 @@
+#if !defined(_ASM_RISCV_UNISTD_H) || defined(__SYSCALL)
+#define _ASM_RISCV_UNISTD_H
+
+#define __ARCH_HAVE_MMU
+#define __ARCH_WANT_SYSCALL_NO_AT
+#define __ARCH_WANT_SYSCALL_DEPRECATED
+#define __ARCH_WANT_SYSCALL_OFF_T
+#define __ARCH_WANT_SYSCALL_NO_FLAGS
+
+#define __ARCH_WANT_SYS_EXECVE
+#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_FORK
+
+#include <asm-generic/unistd.h>
+
+#define __NR_sysriscv  __NR_arch_specific_syscall
+#ifdef CONFIG_RV_SYSRISCV_ATOMIC
+__SYSCALL(__NR_sysriscv, sys_sysriscv)
+#endif
+
+#define __NR_ipc 1080
+#undef  __NR_syscalls
+#define __NR_syscalls (__NR_ipc + 1)
+
+#define RISCV_ATOMIC_CMPXCHG    1
+#define RISCV_ATOMIC_CMPXCHG64  2
+
+#endif /* _ASM_RISCV_UNISTD_H */
diff --git a/linux-headers/include/asm/user.h b/linux-headers/include/asm/user.h
new file mode 100644
index 0000000..e1a8ee2
--- /dev/null
+++ b/linux-headers/include/asm/user.h
@@ -0,0 +1,19 @@
+#ifndef _ASM_RISCV_USER_H
+#define _ASM_RISCV_USER_H
+
+/* Mirror pt_regs from ptrace.h */
+
+typedef struct user_regs_struct {
+	unsigned long zero;
+	unsigned long ra;
+	unsigned long s[12];
+	unsigned long sp;
+	unsigned long tp;
+	unsigned long v[2];
+	unsigned long a[8];
+	unsigned long t[5];
+	unsigned long gp;
+	unsigned long status;
+} user_regs_struct;
+
+#endif /* _ASM_RISCV_USER_H */
diff --git a/linux-headers/include/asm/vdso.h b/linux-headers/include/asm/vdso.h
new file mode 100644
index 0000000..b5ca21c
--- /dev/null
+++ b/linux-headers/include/asm/vdso.h
@@ -0,0 +1,15 @@
+#ifndef _ASM_RISCV_VDSO_H
+#define _ASM_RISCV_VDSO_H
+
+#include <linux/types.h>
+
+struct vdso_data {
+};
+
+#define VDSO_SYMBOL(base, name)					\
+({								\
+	extern const char __vdso_##name[];			\
+	(void *)((unsigned long)(base) + __vdso_##name);	\
+})
+
+#endif /* _ASM_RISCV_VDSO_H */