elfutils: Add host build

Needed for glib2 host build:

gresource-tool.c:32:20: fatal error: libelf.h: No such file or directory
 #include <libelf.h>

Changed PKG_LICENSE to the SPDX version.

Switched build dependency for argp-standalone to !USE_GLIBC. argp is a
glibc extension. Treat it as such.

Adjusted patch to use strerror_l, which works properly with both glibc
and musl. The patch errors under glibc with:

dwfl_error.c:158:7: error: ignoring return value of 'strerror_r', declared
with attribute warn_unused_result [-Werror=unused-result]
       strerror_r (error & 0xffff, s, sizeof(s));

void casting does not fix the error.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
This commit is contained in:
Rosen Penev
2019-09-05 16:57:39 -07:00
committed by Hauke Mehrtens
parent 89fe1dfac2
commit f4da28c301
2 changed files with 9 additions and 16 deletions

View File

@@ -44,21 +44,12 @@ https://sourceware.org/bugzilla/show_bug.cgi?id=21002
}
--- a/libdwfl/dwfl_error.c
+++ b/libdwfl/dwfl_error.c
@@ -140,6 +140,7 @@ __libdwfl_seterrno (Dwfl_Error error)
const char *
dwfl_errmsg (int error)
{
+ static __thread char s[64] = "";
if (error == 0 || error == -1)
{
int last_error = global_error;
@@ -154,7 +155,8 @@ dwfl_errmsg (int error)
@@ -154,7 +154,7 @@ dwfl_errmsg (int error)
switch (error &~ 0xffff)
{
case OTHER_ERROR (ERRNO):
- return strerror_r (error & 0xffff, "bad", 0);
+ strerror_r (error & 0xffff, s, sizeof(s));
+ return s;
+ return strerror_l (error & 0xffff, LC_GLOBAL_LOCALE);
case OTHER_ERROR (LIBELF):
return elf_errmsg (error & 0xffff);
case OTHER_ERROR (LIBDW):