From 338d922a5844a0581d8d935f29d9499f0531eea0 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Sun, 11 Aug 2019 23:50:28 +0200 Subject: [PATCH] package/micropython: fix build with gcc 9 Fixes: - http://autobuild.buildroot.org/results/087906ea63875bcea244aa8f1e551aecd8285f65 Signed-off-by: Fabrice Fontaine Reviewed-by: Chris Packham Signed-off-by: Thomas Petazzoni --- ..._vsnprintf-alias-for-gcc-9-and-above.patch | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 package/micropython/0002-lib-utils-printf-Exclude-__GI_vsnprintf-alias-for-gcc-9-and-above.patch diff --git a/package/micropython/0002-lib-utils-printf-Exclude-__GI_vsnprintf-alias-for-gcc-9-and-above.patch b/package/micropython/0002-lib-utils-printf-Exclude-__GI_vsnprintf-alias-for-gcc-9-and-above.patch new file mode 100644 index 0000000000..161d97e5b9 --- /dev/null +++ b/package/micropython/0002-lib-utils-printf-Exclude-__GI_vsnprintf-alias-for-gcc-9-and-above.patch @@ -0,0 +1,32 @@ +From 7bbde67cb2dc52c04bd7020689a1227bddfa1b06 Mon Sep 17 00:00:00 2001 +From: Damien George +Date: Wed, 6 Feb 2019 01:12:51 +1100 +Subject: [PATCH] lib/utils/printf: Exclude __GI_vsnprintf alias for gcc 9 and + above. + +See issue #4457. + +Signed-off-by: Fabrice Fontaine +[Retrieved from: +https://github.com/micropython/micropython/commit/7bbde67cb2dc52c04bd7020689a1227bddfa1b06] +--- + lib/utils/printf.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +diff --git a/lib/utils/printf.c b/lib/utils/printf.c +index 1ceeea39ff..0c21fc4c0a 100644 +--- a/lib/utils/printf.c ++++ b/lib/utils/printf.c +@@ -99,9 +99,11 @@ STATIC void strn_print_strn(void *data, const char *str, size_t len) { + strn_print_env->remain -= len; + } + +-#if defined(__GNUC__) && !defined(__clang__) ++#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ < 9 + // uClibc requires this alias to be defined, or there may be link errors + // when linkings against it statically. ++// GCC 9 gives a warning about missing attributes so it's excluded until ++// uClibc+GCC9 support is needed. + int __GI_vsnprintf(char *str, size_t size, const char *fmt, va_list ap) __attribute__((weak, alias ("vsnprintf"))); + #endif + -- 2.30.2