Hi,
atm, for nvptx we have the following failure:
...
FAIL: gcc.dg/stdint-width-1.c (test for excess errors)
...
In more detail:
...
gcc/testsuite/gcc.dg/stdint-width-1.c:20:4: error: #error "missing
INT8_WIDTH"
...
The test fails because newlib's stdint.h lacks TS 18661-1 support.
The test deliberately uses -ffreestanding so that any
configurations using GCC's stdint.h for freestanding compilations have
no problems with system stdint.h lacking TS 18661-1 support. But GCC
stdint.h is not used for nvptx, because use_gcc_stdint defaults to
"none" in config.gcc.
The patch fixes the test failure by setting use_gcc_stdint=wrap for
nvptx, so that GCC's stdint.h includes libc's for hosted compilations
but GCC's own for freestanding compilations.
Build and reg-tested on nvptx.
Build on x86_64 with nvptx accelerator and tested libgomp.
Committed.
Thanks,
- Tom
Set use_gcc_stdint=wrap for nvptx
2018-01-12 Tom de Vries <t...@codesourcery.com>
PR target/83737
* config.gcc (nvptx*-*-*): Set use_gcc_stdint=wrap.
---
gcc/config.gcc | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 4ef52ce..122d44e 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2353,6 +2353,7 @@ nios2-*-*)
;;
nvptx-*)
tm_file="${tm_file} newlib-stdint.h"
+ use_gcc_stdint=wrap
tmake_file="nvptx/t-nvptx"
if test x$enable_as_accelerator = xyes; then
extra_programs="${extra_programs} mkoffload\$(exeext)"
