[PATCH] libc/stdio: Remove wchar_t functions from NEWLIB_NANO_FORMATTED_IO

Torbjörn SVENSSON torbjorn.svensson@foss.st.com
Fri Feb 23 15:31:12 GMT 2024


When I regtested this, I used the official Ubuntu 20.04 package of
automake 1.15. When generating the Makefile.in, I do see a few entries
that I did not expect, so therfore I would like someone with the right
versions to generate the Makefile.in and submit this for me.

The alternative approach to this patch is to figure out what functions
(in addition to __ssputws_r) that is also needed in nano formatted io.

--

Regression tested in basepoints/gcc-14-9032-g945cb8490cb with arm-none-eabi.

Example failure without this change:
$ arm-none-eabi-g++ .../pr100611.C -std=c++20 --specs=nosys.specs -o /dev/null --specs=nano.specs
.../ld: .../libc_nano.a(libc_a-svfwprintf.o): in function `_svfwprintf_r':
(.text._svfwprintf_r+0xd8): undefined reference to `__ssputws_r'
.../ld: (.text._svfwprintf_r+0x834): undefined reference to `__ssputws_r'
.../ld: (.text._svfwprintf_r+0x85c): undefined reference to `__ssputws_r'
.../ld: (.text._svfwprintf_r+0x8a8): undefined reference to `__ssputws_r'
.../ld: (.text._svfwprintf_r+0x8dc): undefined reference to `__ssputws_r'
.../ld: .../libc_nano.a(libc_a-svfwprintf.o):(.text._svfwprintf_r+0x900): more undefined references to `__ssputws_r' follow
collect2: error: ld returned 1 exit status

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
Co-authored-by: Yvan ROUX <yvan.roux@foss.st.com>
---
 newlib/libc/stdio/Makefile.inc | 52 +++++++++++++++++-----------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/newlib/libc/stdio/Makefile.inc b/newlib/libc/stdio/Makefile.inc
index e25680212..ce298e5cb 100644
--- a/newlib/libc/stdio/Makefile.inc
+++ b/newlib/libc/stdio/Makefile.inc
@@ -41,7 +41,14 @@ libc_a_SOURCES += \
 	%D%/ssputs_r.c \
 	%D%/ssputws_r.c \
 	%D%/ssprint_r.c \
-	%D%/sswprint_r.c
+	%D%/sswprint_r.c \
+	%D%/svfiwprintf.c \
+	%D%/svfiwscanf.c \
+	%D%/svfwprintf.c \
+	%D%/svfwscanf.c \
+	%D%/vfiwprintf.c \
+	%D%/vfiwscanf.c \
+	%D%/vfwscanf.c
 endif
 
 libc_a_SOURCES += \
@@ -100,17 +107,10 @@ libc_a_SOURCES += \
 	%D%/sprintf.c \
 	%D%/sscanf.c \
 	%D%/stdio.c \
-	%D%/svfiwprintf.c \
-	%D%/svfiwscanf.c \
-	%D%/svfwprintf.c \
-	%D%/svfwscanf.c \
 	%D%/tmpfile.c \
 	%D%/tmpnam.c \
 	%D%/ungetc.c \
 	%D%/vdprintf.c \
-	%D%/vfiwprintf.c \
-	%D%/vfiwscanf.c \
-	%D%/vfwscanf.c \
 	%D%/vprintf.c \
 	%D%/vscanf.c \
 	%D%/vsnprintf.c \
@@ -127,13 +127,13 @@ if !ELIX_LEVEL_1
 	%D%/fcloseall.c \
 	%D%/fseeko.c \
 	%D%/ftello.c \
-	%D%/getw.c \
 	%D%/mktemp.c \
-	%D%/putw.c \
 	%D%/vasprintf.c
 if !NEWLIB_NANO_FORMATTED_IO
 %C%_ELIX_2_SOURCES += \
 	%D%/asiprintf.c \
+	%D%/getw.c \
+	%D%/putw.c \
 	%D%/vasiprintf.c
 endif !NEWLIB_NANO_FORMATTED_IO
 endif !ELIX_LEVEL_1
@@ -157,52 +157,52 @@ else
 	%D%/fflush_u.c \
 	%D%/fgetc_u.c \
 	%D%/fgets_u.c \
-	%D%/fgetwc.c \
-	%D%/fgetwc_u.c \
-	%D%/fgetws.c \
-	%D%/fgetws_u.c \
 	%D%/fileno_u.c \
 	%D%/fmemopen.c \
 	%D%/fopencookie.c \
 	%D%/fpurge.c \
 	%D%/fputc_u.c \
 	%D%/fputs_u.c \
+	%D%/fread_u.c \
+	%D%/fsetlocking.c \
+	%D%/funopen.c \
+	%D%/fwrite_u.c \
+	%D%/open_memstream.c \
+	%D%/stdio_ext.c \
+	%D%/vasnprintf.c
+if !NEWLIB_NANO_FORMATTED_IO
+%C%_ELIX_4_SOURCES += \
+	%D%/asniprintf.c \
+	%D%/diprintf.c \
+	%D%/fgetwc.c \
+	%D%/fgetwc_u.c \
+	%D%/fgetws.c \
+	%D%/fgetws_u.c \
 	%D%/fputwc.c \
 	%D%/fputwc_u.c \
 	%D%/fputws.c \
 	%D%/fputws_u.c \
-	%D%/fread_u.c \
-	%D%/fsetlocking.c \
-	%D%/funopen.c \
 	%D%/fwide.c \
 	%D%/fwprintf.c \
-	%D%/fwrite_u.c \
 	%D%/fwscanf.c \
 	%D%/getwc.c \
 	%D%/getwc_u.c \
 	%D%/getwchar.c \
 	%D%/getwchar_u.c \
-	%D%/open_memstream.c \
 	%D%/putwc.c \
 	%D%/putwc_u.c \
 	%D%/putwchar.c \
 	%D%/putwchar_u.c \
-	%D%/stdio_ext.c \
 	%D%/swprintf.c \
 	%D%/swscanf.c \
 	%D%/ungetwc.c \
-	%D%/vasnprintf.c \
+	%D%/vasniprintf.c \
 	%D%/vswprintf.c \
 	%D%/vswscanf.c \
 	%D%/vwprintf.c \
 	%D%/vwscanf.c \
 	%D%/wprintf.c \
 	%D%/wscanf.c
-if !NEWLIB_NANO_FORMATTED_IO
-%C%_ELIX_4_SOURCES += \
-	%D%/asniprintf.c \
-	%D%/diprintf.c \
-	%D%/vasniprintf.c
 endif !NEWLIB_NANO_FORMATTED_IO
 endif !ELIX_LEVEL_3
 endif !ELIX_LEVEL_2
-- 
2.25.1



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