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Merge pull request #1457 from foss-for-synopsys-dwc-arc-processors/abrodkin-glibc-arc700
glibc: Add ARC700 support to v2.32 & 2.33
This commit is contained in:
Chris Packham
GitHub
commit
40af982ad1
82
packages/glibc/2.32/0002-Add-ARC700-support.patch
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82
packages/glibc/2.32/0002-Add-ARC700-support.patch
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From 6349ae7c3d96c8d00179e290d1ccf8a2d8438cc8 Mon Sep 17 00:00:00 2001
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From: Rosen Penev <rosenp@gmail.com>
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Date: Sat, 13 Feb 2021 17:08:21 +0300
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Subject: [PATCH] Add ARC700 support
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glibc does not officially support ARC700 so this adds the missing
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pieces. I looked at uClibc-ng and a patch by Synopsis for glibc.
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[Alexey] Taken from https://github.com/openwrt/openwrt/commit/33646a51abcf15ff5c5363848287e1ed778b7467
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Signed-off-by: Rosen Penev <rosenp@gmail.com>
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Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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---
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sysdeps/arc/atomic-machine.h | 4 ++++
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sysdeps/unix/sysv/linux/arc/syscall.S | 5 +++++
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sysdeps/unix/sysv/linux/arc/sysdep.h | 8 ++++++++
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3 files changed, 17 insertions(+)
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diff --git a/sysdeps/arc/atomic-machine.h b/sysdeps/arc/atomic-machine.h
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index 1c8638bb44..bde66ae137 100644
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--- a/sysdeps/arc/atomic-machine.h
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+++ b/sysdeps/arc/atomic-machine.h
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@@ -64,6 +64,10 @@ typedef uintmax_t uatomic_max_t;
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__atomic_val_bysize (__arch_compare_and_exchange_val, int, \
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mem, new, old, __ATOMIC_ACQUIRE)
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+#ifdef __ARC700__
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+#define atomic_full_barrier() ({ asm volatile ("sync":::"memory"); })
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+#else
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#define atomic_full_barrier() ({ asm volatile ("dmb 3":::"memory"); })
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+#endif
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#endif /* _ARC_BITS_ATOMIC_H */
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diff --git a/sysdeps/unix/sysv/linux/arc/syscall.S b/sysdeps/unix/sysv/linux/arc/syscall.S
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index 6227dbf499..0609dbeeba 100644
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--- a/sysdeps/unix/sysv/linux/arc/syscall.S
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+++ b/sysdeps/unix/sysv/linux/arc/syscall.S
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@@ -24,8 +24,13 @@ ENTRY (syscall)
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mov_s r1, r2
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mov_s r2, r3
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mov_s r3, r4
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+#ifdef __ARC700__
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+ mov r4, r5
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+ mov r5, r6
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+#else
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mov_s r4, r5
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mov_s r5, r6
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+#endif
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ARC_TRAP_INSN
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brhi r0, -4096, L (call_syscall_err)
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diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.h b/sysdeps/unix/sysv/linux/arc/sysdep.h
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index 8465a2f623..3faff27b1c 100644
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--- a/sysdeps/unix/sysv/linux/arc/sysdep.h
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+++ b/sysdeps/unix/sysv/linux/arc/sysdep.h
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@@ -128,7 +128,11 @@ L (call_syscall_err): ASM_LINE_SEP \
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mov r8, __NR_##syscall_name ASM_LINE_SEP \
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ARC_TRAP_INSN ASM_LINE_SEP
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+# ifdef __ARC700__
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+# define ARC_TRAP_INSN trap0
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+# else
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# define ARC_TRAP_INSN trap_s 0
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+# endif
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#else /* !__ASSEMBLER__ */
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@@ -139,7 +143,11 @@ extern long int __syscall_error (long int);
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hidden_proto (__syscall_error)
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# endif
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+# ifdef __ARC700__
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+# define ARC_TRAP_INSN "trap0 \n\t"
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+# else
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# define ARC_TRAP_INSN "trap_s 0 \n\t"
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+#endif
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# undef INTERNAL_SYSCALL_NCS
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# define INTERNAL_SYSCALL_NCS(number, nr_args, args...) \
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--
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2.16.2
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82
packages/glibc/2.33/0002-Add-ARC700-support.patch
vendored
Normal file
82
packages/glibc/2.33/0002-Add-ARC700-support.patch
vendored
Normal file
@ -0,0 +1,82 @@
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From 6349ae7c3d96c8d00179e290d1ccf8a2d8438cc8 Mon Sep 17 00:00:00 2001
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From: Rosen Penev <rosenp@gmail.com>
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Date: Sat, 13 Feb 2021 17:08:21 +0300
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Subject: [PATCH] Add ARC700 support
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glibc does not officially support ARC700 so this adds the missing
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pieces. I looked at uClibc-ng and a patch by Synopsis for glibc.
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[Alexey] Taken from https://github.com/openwrt/openwrt/commit/33646a51abcf15ff5c5363848287e1ed778b7467
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Signed-off-by: Rosen Penev <rosenp@gmail.com>
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Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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---
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sysdeps/arc/atomic-machine.h | 4 ++++
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sysdeps/unix/sysv/linux/arc/syscall.S | 5 +++++
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sysdeps/unix/sysv/linux/arc/sysdep.h | 8 ++++++++
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3 files changed, 17 insertions(+)
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diff --git a/sysdeps/arc/atomic-machine.h b/sysdeps/arc/atomic-machine.h
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index 1c8638bb44..bde66ae137 100644
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--- a/sysdeps/arc/atomic-machine.h
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+++ b/sysdeps/arc/atomic-machine.h
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@@ -64,6 +64,10 @@ typedef uintmax_t uatomic_max_t;
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__atomic_val_bysize (__arch_compare_and_exchange_val, int, \
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mem, new, old, __ATOMIC_ACQUIRE)
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+#ifdef __ARC700__
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+#define atomic_full_barrier() ({ asm volatile ("sync":::"memory"); })
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+#else
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#define atomic_full_barrier() ({ asm volatile ("dmb 3":::"memory"); })
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+#endif
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#endif /* _ARC_BITS_ATOMIC_H */
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diff --git a/sysdeps/unix/sysv/linux/arc/syscall.S b/sysdeps/unix/sysv/linux/arc/syscall.S
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index 6227dbf499..0609dbeeba 100644
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--- a/sysdeps/unix/sysv/linux/arc/syscall.S
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+++ b/sysdeps/unix/sysv/linux/arc/syscall.S
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@@ -24,8 +24,13 @@ ENTRY (syscall)
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mov_s r1, r2
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mov_s r2, r3
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mov_s r3, r4
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+#ifdef __ARC700__
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+ mov r4, r5
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+ mov r5, r6
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+#else
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mov_s r4, r5
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mov_s r5, r6
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+#endif
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ARC_TRAP_INSN
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brhi r0, -4096, L (call_syscall_err)
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diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.h b/sysdeps/unix/sysv/linux/arc/sysdep.h
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index 8465a2f623..3faff27b1c 100644
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--- a/sysdeps/unix/sysv/linux/arc/sysdep.h
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+++ b/sysdeps/unix/sysv/linux/arc/sysdep.h
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@@ -128,7 +128,11 @@ L (call_syscall_err): ASM_LINE_SEP \
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mov r8, __NR_##syscall_name ASM_LINE_SEP \
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ARC_TRAP_INSN ASM_LINE_SEP
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+# ifdef __ARC700__
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+# define ARC_TRAP_INSN trap0
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+# else
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# define ARC_TRAP_INSN trap_s 0
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+# endif
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#else /* !__ASSEMBLER__ */
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@@ -139,7 +143,11 @@ extern long int __syscall_error (long int);
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hidden_proto (__syscall_error)
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# endif
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+# ifdef __ARC700__
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+# define ARC_TRAP_INSN "trap0 \n\t"
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+# else
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# define ARC_TRAP_INSN "trap_s 0 \n\t"
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+#endif
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# undef INTERNAL_SYSCALL_NCS
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# define INTERNAL_SYSCALL_NCS(number, nr_args, args...) \
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--
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2.16.2
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