From 2c242092372e9f7f62b881e81e8e798475e0cbb3 Mon Sep 17 00:00:00 2001 From: Rahul Bedarkar Date: Sun, 18 Sep 2016 13:15:38 +0530 Subject: elf-{fdpic, dsbt}.h: avoid void pointer's subtraction elf-fdpic.h or elf-dsbt.h is included by link.h. When C++ program includes , we get following build failure. ../usr/include/bits/elf-fdpic.h: In function 'void* __reloc_pointer(void*, const elf32_fdpic_loadmap*)': ../usr/include/bits/elf-fdpic.h:95: error: invalid use of 'void' void pointer addition and subtraction is not allowed in C++ as it has undetermined size, however in C with language extension it is possible because sizeof void is treated as one byte. Instead of performing subtraction on void pointers, typecast it to char* first. This build failure is detected by Buildroot autobuilder. http://autobuild.buildroot.net/results/a10/a10ed48e6eb8411a3d8372f57c05fd11130da0e0/ Signed-off-by: Rahul Bedarkar --- libc/sysdeps/linux/c6x/bits/elf-dsbt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libc/sysdeps/linux/c6x') diff --git a/libc/sysdeps/linux/c6x/bits/elf-dsbt.h b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h index a4e3e7db3..0e82ec790 100644 --- a/libc/sysdeps/linux/c6x/bits/elf-dsbt.h +++ b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h @@ -94,7 +94,7 @@ __reloc_pointer (void *p, for (c = 0; c < map->nsegs; c++) { - unsigned long offset = p - (void*)map->segs[c].p_vaddr; + unsigned long offset = (char*)p - (char*)map->segs[c].p_vaddr; /* We only check for one-past-the-end for the second segment, assumed to be the data segment, because other cases are ambiguous in the absence of padding between segments, and -- cgit v1.2.3