[6/7,v2,MSP430,TESTSUITE] Fix tests requiring float printf support when GCC was configured with --enable-newlib-nano-formatted-io

Message ID 20181121224117.4818a387@jozef-Aspire-VN7-793G
State New
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Series
  • Untitled series #9233
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Commit Message

Jozef Lawrynowicz Nov. 21, 2018, 10:41 p.m.
On Wed, 14 Nov 2018 15:41:00 +0000
Jozef Lawrynowicz <jozef.l@mittosystems.com> wrote:

> Patch 6 fixes tests expecting printf float support for targets which have been

> configured with "newlib-nano-formatted-io". When newlib is configured in this

> way, float printf is enabled at build time by registering _printf_float as an

> undefined symbol.


Added missing documentation for new check_effective target procs in attached
patch.

Patch

From ad5c2e3684904f961938cfc0b50445013300c6e0 Mon Sep 17 00:00:00 2001
From: Jozef Lawrynowicz <jozef.l@mittosystems.com>
Date: Sat, 10 Nov 2018 16:02:25 +0000
Subject: [PATCH] [TESTSUITE] Fix tests requiring float printf support when GCC
 was configured with --enable-newlib-nano-formatted-io

2018-11-21  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	gcc/ChangeLog:

	* doc/sourcebuild.texi: Document check_effective_target_newlib_nano_io.

	gcc/testsuite/ChangeLog:

	* lib/target-supports.exp (check_effective_target_newlib_nano_io): New. 
	* gcc.c-torture/execute/920501-8.c: Register undefined linker symbol
	_printf_float for newlib_nano_io target.
	* gcc.c-torture/execute/930513-1.c: Likewise.
	* gcc.dg/torture/builtin-sprintf.c: Likewise.
	* gcc.c-torture/execute/ieee/920810-1.x: New.
---
 gcc/doc/sourcebuild.texi                            | 4 ++++
 gcc/testsuite/gcc.c-torture/execute/920501-8.c      | 2 ++
 gcc/testsuite/gcc.c-torture/execute/930513-1.c      | 2 ++
 gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x | 4 ++++
 gcc/testsuite/gcc.dg/torture/builtin-sprintf.c      | 3 ++-
 gcc/testsuite/lib/target-supports.exp               | 4 ++++
 6 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 9c57226..bfaa0fd 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2152,6 +2152,10 @@  Target supports @code{mmap}.
 @item newlib
 Target supports Newlib.
 
+@item newlib_nano_io
+GCC was configured with @code{--enable-newlib-nano-formatted-io}, which reduces
+the code size of Newlib formatted I/O functions.
+
 @item pow10
 Target provides @code{pow10} function.
 
diff --git a/gcc/testsuite/gcc.c-torture/execute/920501-8.c b/gcc/testsuite/gcc.c-torture/execute/920501-8.c
index 62780a0..7e4fa17 100644
--- a/gcc/testsuite/gcc.c-torture/execute/920501-8.c
+++ b/gcc/testsuite/gcc.c-torture/execute/920501-8.c
@@ -1,3 +1,5 @@ 
+/* { dg-additional-options "-Wl,-u,_printf_float" { target newlib_nano_io } } */
+
 #include <stdio.h>
 #include <stdarg.h>
 
diff --git a/gcc/testsuite/gcc.c-torture/execute/930513-1.c b/gcc/testsuite/gcc.c-torture/execute/930513-1.c
index 4544471..f163007 100644
--- a/gcc/testsuite/gcc.c-torture/execute/930513-1.c
+++ b/gcc/testsuite/gcc.c-torture/execute/930513-1.c
@@ -1,3 +1,5 @@ 
+/* { dg-additional-options "-Wl,-u,_printf_float" { target newlib_nano_io } } */
+
 #include <stdio.h>
 char buf[2];
 
diff --git a/gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x b/gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x
new file mode 100644
index 0000000..8edec730
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x
@@ -0,0 +1,4 @@ 
+if { [check_effective_target_newlib_nano_io] } {
+    lappend additional_flags "-Wl,-u,_printf_float"
+}
+return 0
diff --git a/gcc/testsuite/gcc.dg/torture/builtin-sprintf.c b/gcc/testsuite/gcc.dg/torture/builtin-sprintf.c
index 6f8b7a9..5684fd7 100644
--- a/gcc/testsuite/gcc.dg/torture/builtin-sprintf.c
+++ b/gcc/testsuite/gcc.dg/torture/builtin-sprintf.c
@@ -1,6 +1,7 @@ 
 /* PR tree-optimization/86274 - SEGFAULT when logging std::to_string(NAN)
    { dg-do run }
-   { dg-options "-O2 -Wall" } */
+   { dg-options "-O2 -Wall" }
+   { dg-additional-options "-Wl,-u,_printf_float" { target newlib_nano_io } } */
 
 #define X        "0xdeadbeef"
 #define nan(x)   __builtin_nan (x)
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 7488653..d696fc6 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -6691,6 +6691,10 @@  proc check_effective_target_newlib {} {
 	#include <newlib.h>
     }]
 }
+# Return true if GCC was configured with --enable-newlib-nano-formatted-io
+proc check_effective_target_newlib_nano_io { } {
+    return [check_configured_with "--enable-newlib-nano-formatted-io"]
+}
 
 # Some newlib versions don't provide a frexpl and instead depend
 # on frexp to implement long double conversions in their printf-like
-- 
2.7.4