[v3,01/13] nds32: Build Infastructure

Message ID 1528960976-10934-2-git-send-email-vincentc@andestech.com
State Superseded
Headers show
Series
  • nds32 glibc port, v3
Related show

Commit Message

Vincent Chen June 14, 2018, 7:22 a.m.
This patch contains all needed Implies, configure and Makefile for nds32
port.

2018-05-30  Vincent Chen  <vincentc@andestech.com>

        * sysdeps/nds32/Implies: New file.
        * sysdeps/nds32/Makefile: Likewise.
        * sysdeps/nds32/configure: Likewise.
        * sysdeps/nds32/configure.ac: Likewise.
        * sysdeps/nds32/nofpu/Implies: Likewise.
        * sysdeps/nds32/nptl/Makefile: Likewise.
        * sysdeps/nds32/preconfigure: Likewise.
        * sysdeps/unix/sysv/linux/nds32/Implies: Likewise.
        * sysdeps/unix/sysv/linux/nds32/Makefile: Likewise.
        * sysdeps/unix/sysv/linux/nds32/Versions: Likewise.
        * sysdeps/unix/sysv/linux/nds32/configure: Likewise.
        * sysdeps/unix/sysv/linux/nds32/configure.ac: Likewise.
        * sysdeps/unix/sysv/linux/nds32/shlib-versions: Likewise.
---
 sysdeps/nds32/Implies                        |  3 +++
 sysdeps/nds32/Makefile                       |  9 +++++++++
 sysdeps/nds32/configure                      | 10 ++++++++++
 sysdeps/nds32/configure.ac                   | 10 ++++++++++
 sysdeps/nds32/nofpu/Implies                  |  1 +
 sysdeps/nds32/nptl/Makefile                  |  4 ++++
 sysdeps/nds32/preconfigure                   | 30 ++++++++++++++++++++++++++++
 sysdeps/unix/sysv/linux/nds32/Implies        |  3 +++
 sysdeps/unix/sysv/linux/nds32/Makefile       | 17 ++++++++++++++++
 sysdeps/unix/sysv/linux/nds32/Versions       | 11 ++++++++++
 sysdeps/unix/sysv/linux/nds32/configure      |  4 ++++
 sysdeps/unix/sysv/linux/nds32/configure.ac   |  4 ++++
 sysdeps/unix/sysv/linux/nds32/shlib-versions |  7 +++++++
 13 files changed, 113 insertions(+)
 create mode 100644 sysdeps/nds32/Implies
 create mode 100644 sysdeps/nds32/Makefile
 create mode 100755 sysdeps/nds32/configure
 create mode 100644 sysdeps/nds32/configure.ac
 create mode 100644 sysdeps/nds32/nofpu/Implies
 create mode 100644 sysdeps/nds32/nptl/Makefile
 create mode 100644 sysdeps/nds32/preconfigure
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Implies
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Makefile
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Versions
 create mode 100755 sysdeps/unix/sysv/linux/nds32/configure
 create mode 100644 sysdeps/unix/sysv/linux/nds32/configure.ac
 create mode 100644 sysdeps/unix/sysv/linux/nds32/shlib-versions

-- 
2.7.4

Comments

Joseph Myers June 14, 2018, 1:27 p.m. | #1
On Thu, 14 Jun 2018, Vincent Chen wrote:

> diff --git a/sysdeps/unix/sysv/linux/nds32/Makefile b/sysdeps/unix/sysv/linux/nds32/Makefile

> new file mode 100644

> index 0000000..2709916

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/nds32/Makefile

> @@ -0,0 +1,17 @@

> +ifeq ($(subdir),misc)

> +sysdep_headers += sys/cachectl.h

> +sysdep_routines += cacheflush prctl mremap

> +endif


Why do you need prctl and mremap here?  I'd expect the generic builds of 
those functions from syscalls.list to work fine.

-- 
Joseph S. Myers
joseph@codesourcery.com
Vincent Chen June 15, 2018, 7:41 a.m. | #2
On Thu, Jun 14, 2018 at 09:27:17PM +0800, Joseph Myers wrote:
> On Thu, 14 Jun 2018, Vincent Chen wrote:

> 

> > diff --git a/sysdeps/unix/sysv/linux/nds32/Makefile b/sysdeps/unix/sysv/linux/nds32/Makefile

> > new file mode 100644

> > index 0000000..2709916

> > --- /dev/null

> > +++ b/sysdeps/unix/sysv/linux/nds32/Makefile

> > @@ -0,0 +1,17 @@

> > +ifeq ($(subdir),misc)

> > +sysdep_headers += sys/cachectl.h

> > +sysdep_routines += cacheflush prctl mremap

> > +endif

> 

> Why do you need prctl and mremap here?  I'd expect the generic builds of 

> those functions from syscalls.list to work fine.

> 


The generic version of these two functions cannot work for FPU supported ISA
However, this patchset does not support FPU ISA. I will remove it in the next
version patch.


( For nds32 FPU ISA, the calling convention for variable argument is different
  to general case. For general case, caller through general purpose register to
  pass argument. When caller finds the argument of callee function is
  variable-length, caller places those variable arguments to stack instead of
  general purpose registers. The difference causes variable-length functions can
  not use internal_syscallX macro in sysdep.h to issue syscall. Therefore, these
  generic builds of variable-length functions from syscalls.list cannot work )

> -- 

> Joseph S. Myers

> joseph@codesourcery.com

Patch

diff --git a/sysdeps/nds32/Implies b/sysdeps/nds32/Implies
new file mode 100644
index 0000000..387a0ca
--- /dev/null
+++ b/sysdeps/nds32/Implies
@@ -0,0 +1,3 @@ 
+wordsize-32
+ieee754/dbl-64
+ieee754/flt-32
diff --git a/sysdeps/nds32/Makefile b/sysdeps/nds32/Makefile
new file mode 100644
index 0000000..5651161
--- /dev/null
+++ b/sysdeps/nds32/Makefile
@@ -0,0 +1,9 @@ 
+ifeq ($(subdir),elf)
+sysdep-dl-routines += tlsdesc dl-tlsdesc
+sysdep_routines += tlsdesc dl-tlsdesc
+sysdep-rtld-routines += tlsdesc dl-tlsdesc
+endif
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tlsdesc.sym
+endif
diff --git a/sysdeps/nds32/configure b/sysdeps/nds32/configure
new file mode 100755
index 0000000..8ece006
--- /dev/null
+++ b/sysdeps/nds32/configure
@@ -0,0 +1,10 @@ 
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/nds32.
+
+# For nds32 ABI for linux toolchain, the $r15 register is not only an
+# assembler reserved register but also used to passing the sysem call
+# number. In order to ensure the data safety, $r15 is included in
+# clobber list by default. Using the option -minline-asm-r15 can
+# avoid the conflict between asm-specifier for syscall number and
+# clobber list when issuing system call by inline assembly.
+CFLAGS="$CFLAGS -minline-asm-r15"
diff --git a/sysdeps/nds32/configure.ac b/sysdeps/nds32/configure.ac
new file mode 100644
index 0000000..c0e2494
--- /dev/null
+++ b/sysdeps/nds32/configure.ac
@@ -0,0 +1,10 @@ 
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/nds32.
+
+# For nds32 ABI for linux toolchain, the $r15 register is not only an 
+# assembler reserved register but also used to passing the sysem call
+# number. In order to ensure the data safety, $r15 is included in
+# clobber list by default. Using the option -minline-asm-r15 can
+# avoid the conflict between asm-specifier for syscall number and
+# clobber list when issuing system call by inline assembly.
+CFLAGS="$CFLAGS -minline-asm-r15"
diff --git a/sysdeps/nds32/nofpu/Implies b/sysdeps/nds32/nofpu/Implies
new file mode 100644
index 0000000..abcbadb
--- /dev/null
+++ b/sysdeps/nds32/nofpu/Implies
@@ -0,0 +1 @@ 
+ieee754/soft-fp
diff --git a/sysdeps/nds32/nptl/Makefile b/sysdeps/nds32/nptl/Makefile
new file mode 100644
index 0000000..6f553d6
--- /dev/null
+++ b/sysdeps/nds32/nptl/Makefile
@@ -0,0 +1,4 @@ 
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/sysdeps/nds32/preconfigure b/sysdeps/nds32/preconfigure
new file mode 100644
index 0000000..a5faf50
--- /dev/null
+++ b/sysdeps/nds32/preconfigure
@@ -0,0 +1,30 @@ 
+case "$machine" in
+nds32*)
+    endian_abi_type=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __NDS32_E\([B|L]*\)__ 1/\1/p'`
+    case "$endian_abi_type" in
+    L)
+       endian_abi_type=0
+       ;;
+    B)
+       echo "glibc does not yet support big-endian configuration" >&2
+       exit 1
+       ;;
+    esac
+
+    float_abi_type=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __NDS32_EXT_FPU_\([S|D]P*\) 1/\1/p' | wc -l`
+    case "$float_abi_type" in
+    0)
+       with_fp_cond=0
+       ;;
+    *)
+       echo "glibc does not yet support systems with FP instructions" >&2
+       exit 1
+       ;;
+    esac
+
+    base_machine=nds32
+    machine=nds32
+
+    $as_echo "#define NDS32_ABI_TYPE 0x$float_abi_type$endian_abi_type" >>confdefs.h
+    ;;
+esac
diff --git a/sysdeps/unix/sysv/linux/nds32/Implies b/sysdeps/unix/sysv/linux/nds32/Implies
new file mode 100644
index 0000000..91b4e1e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/Implies
@@ -0,0 +1,3 @@ 
+nds32/nptl
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
diff --git a/sysdeps/unix/sysv/linux/nds32/Makefile b/sysdeps/unix/sysv/linux/nds32/Makefile
new file mode 100644
index 0000000..2709916
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/Makefile
@@ -0,0 +1,17 @@ 
+ifeq ($(subdir),misc)
+sysdep_headers += sys/cachectl.h
+sysdep_routines += cacheflush prctl mremap
+endif
+
+
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
+ifeq ($(subdir),elf)
+sysdep_routines += dl-vdso
+ifeq ($(build-shared),yes)
+# This is needed for DSO loading from static binaries.
+sysdep-dl-routines += dl-static
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/nds32/Versions b/sysdeps/unix/sysv/linux/nds32/Versions
new file mode 100644
index 0000000..abe47ce
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/Versions
@@ -0,0 +1,11 @@ 
+ld {
+  GLIBC_PRIVATE {
+  # used for loading by static libraries
+    _dl_var_init;
+  }
+}
+libc {
+  GLIBC_2.28 {
+    cacheflush;
+  }
+}
diff --git a/sysdeps/unix/sysv/linux/nds32/configure b/sysdeps/unix/sysv/linux/nds32/configure
new file mode 100755
index 0000000..ceb6c90
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/configure
@@ -0,0 +1,4 @@ 
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/nds32.
+
+arch_minimum_kernel=4.17.0
diff --git a/sysdeps/unix/sysv/linux/nds32/configure.ac b/sysdeps/unix/sysv/linux/nds32/configure.ac
new file mode 100644
index 0000000..91bf889
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/configure.ac
@@ -0,0 +1,4 @@ 
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/nds32.
+
+arch_minimum_kernel=4.17.0
diff --git a/sysdeps/unix/sysv/linux/nds32/shlib-versions b/sysdeps/unix/sysv/linux/nds32/shlib-versions
new file mode 100644
index 0000000..a94d2a4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/nds32/shlib-versions
@@ -0,0 +1,7 @@ 
+DEFAULT			GLIBC_2.28
+
+%if NDS32_ABI_TYPE == 0
+ld=ld-linux-nds32le.so.1
+%else
+%error cannot determine ABI
+%endif