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[UPC,08/22] target - Darwin

Message ID 20151201060236.GA31139@intrepid.com
State New
Headers show

Commit Message

Gary Funck Dec. 1, 2015, 6:02 a.m. UTC 
Background
----------

An overview email, describing the UPC-related changes is here:
  https://gcc.gnu.org/ml/gcc-patches/2015-12/msg00005.html

The GUPC branch is described here:
  http://gcc.gnu.org/projects/gupc.html

The UPC-related source code differences are summarized here:
  http://gccupc.org/gupc-changes

All languages (c, c++, fortran, go, lto, objc, obj-c++) have been
bootstrapped; no test suite regressions were introduced,
relative to the GCC trunk.

If you are on the cc-list, your name was chosen either
because you are listed as a maintainer for the area that
applies to the patches described in this email, or you
were a frequent contributor of patches made to files listed
in this email.

In the change log entries included in each patch, the directory
containing the affected files is listed, followed by the files.
When the patches are applied, the change log entries will be
distributed to the appropriate ChangeLog file.

Overview
--------

For Darwin, if -fupc is given, then define various UPC-specific spec's.
Also, override default section names for the UPC-related linker sections.

2015-11-30  Gary Funck  <gary@intrepid.com>

	gcc/config/
	* darwin.h (LINK_COMMAND_SPEC_A): If -fupc is asserted:
	add UPC start/end files, add include of libgupc.spec
	(UPC_SHARED_SECTION_NAME, UPC_PGM_INFO_SECTION_NAME,
	UPC_INIT_ARRAY_SECTION_NAME): New.  Override default section names.
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Patch

Index: gcc/config/darwin.h
===================================================================
--- gcc/config/darwin.h	(.../trunk)	(revision 231059)
+++ gcc/config/darwin.h	(.../branches/gupc)	(revision 231080)
@@ -176,16 +176,19 @@  extern GTY(()) int darwin_ms_struct;
     %{e*} %{r} \
     %{o*}%{!o:-o a.out} \
     %{!nostdlib:%{!nostartfiles:%S}} \
+    %{!nostdlib:%{!nostartfiles:%{fupc:%:include(upc-crtbegin.spec)%(upc_crtbegin)}}}\
     %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
     %{fopenacc|fopenmp|ftree-parallelize-loops=*: \
       %{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
     %{fgnu-tm: \
       %{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
+    %{fupc:%:include(libgupc.spec)%(link_upc)} \
     %{!nostdlib:%{!nodefaultlibs:\
       %{%:sanitize(address): -lasan } \
       %{%:sanitize(undefined): -lubsan } \
       %(link_ssp) %(link_gcc_c_sequence)\
     }}\
+    %{!nostdlib:%{!nostartfiles:%{fupc:%:include(upc-crtend.spec)%(upc_crtend)}}}\
     %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
 
 #define DSYMUTIL "\ndsymutil"
@@ -922,6 +925,11 @@  extern void darwin_driver_init (unsigned
 #undef SUPPORTS_INIT_PRIORITY
 #define SUPPORTS_INIT_PRIORITY 0
 
+/* UPC section names */
+#define UPC_SHARED_SECTION_NAME "__DATA,upc_shared"
+#define UPC_PGM_INFO_SECTION_NAME "__DATA,upc_pgm_info"
+#define UPC_INIT_ARRAY_SECTION_NAME "__DATA,upc_init_array"
+
 /* When building cross-compilers (and native crosses) we shall default to 
    providing an osx-version-min of this unless overridden by the User.
    10.5 is the only version that fully supports all our archs so that's the