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[PR target/65181] nvptx libgcc: Prevent building "advanced" stuff (for example, gcov support)

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When building GCC against a proper newlib sysroot, the libgcc build will
include more than what's built in the -Dinhibit_libc configuration used when
building newlib as part of the GCC build process.  See the inhibit_libc logic
in gcc/configure.ac.

To avoid...

    ptxas _gcov_indirect_call_topn_profiler.o, line 101; error   : Type or alignment of argument does not match formal parameter 'ptr'
    ptxas _gcov_indirect_call_topn_profiler.o, line 101; error   : Call has wrong number of parameters
    ptxas _gcov_indirect_call_topn_profiler.o, line 101; error   : Type or alignment of argument does not match formal parameter 'size'
    ptxas fatal   : Ptx assembly aborted due to errors
    nvptx-as: ptxas returned 255 exit status
    make[2]: *** [_gcov_indirect_call_topn_profiler.o] Error 1

..., "dumb down" the libgcc build:

	libgcc/
	PR target/65181
	* config/nvptx/t-nvptx (INHIBIT_LIBC_CFLAGS): Define to
	-Dinhibit_libc.

From-SVN: r220915
This commit is contained in:
Thomas Schwinge 2015-02-23 18:51:41 +01:00 committed by Thomas Schwinge
parent b0eb429dd8
commit b6530d0a50
2 changed files with 11 additions and 0 deletions
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6
libgcc/ChangeLog
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@ -1,3 +1,9 @@
2015-02-23 Thomas Schwinge <thomas@codesourcery.com>
PR target/65181
* config/nvptx/t-nvptx (INHIBIT_LIBC_CFLAGS): Define to
-Dinhibit_libc.
2015-02-17 Sandra Loosemore <sandra@codesourcery.com>
* config/arm/bpabi.S (test_div_by_zero): Make label names

5
libgcc/config/nvptx/t-nvptx
View File

@ -7,3 +7,8 @@ LIB2FUNCS_EXCLUDE=__main
crt0.o: $(srcdir)/config/nvptx/crt0.s
cp $< $@
# Prevent building "advanced" stuff (for example, gcov support). We don't
# support it, and it may cause the build to fail, because of alloca usage, for
# example.
INHIBIT_LIBC_CFLAGS = -Dinhibit_libc