[cadcdev-svn-commits] [SCM] branch master updated. v2.0.0-693-g547d446

[ljsebald <ljs...@us...>]

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- Log -----------------------------------------------------------------
commit 547d44653ef7cb5a5d3e7c6615284c3ea0e0a3aa
Merge: c84b74b 3bd35d6
Author: Lawrence Sebald <ljs...@us...>
Date:   Sun Mar 26 17:11:59 2023 -0400

    Merge pull request #136 from cepawiel/random-gcc4
    
    Disable opening/reading random device when using GCC4 Toolchain

commit 3bd35d6d3ee3b886b60af8e24243a57d9c580973
Author: Colton Pawielski <cep...@us...>
Date:   Wed Mar 15 16:40:37 2023 -0500

    Change warning text to clarify limitation with newlib
    
    Co-authored-by: Lawrence Sebald <ljs...@us...>

commit 035030b245c59f0ea374dcd0527a43aa42d1a3a4
Author: Colton Pawielski <cep...@us...>
Date:   Wed Mar 15 16:39:54 2023 -0500

    Change CFLAGS to KOS_CFLAGS in random example
    
    Co-authored-by: Lawrence Sebald <ljs...@us...>

commit cbffea67a4ab28d7af3bd2ebac5f356c799efee9
Author: Colton Pawielski <cep...@mt...>
Date:   Tue Mar 14 21:55:27 2023 -0500

    Disable dev filesystem when newlib < 2.4.0

commit a22531bbee760d3e9ce4db56724cf34e05f7a8e5
Author: Colton Pawielski <cep...@mt...>
Date:   Tue Mar 14 17:20:17 2023 -0500

    Add C99 flag to Random Example

-----------------------------------------------------------------------

Summary of changes:
 examples/dreamcast/random/Makefile  | 2 ++
 kernel/arch/dreamcast/kernel/init.c | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/examples/dreamcast/random/Makefile b/examples/dreamcast/random/Makefile
index 7ac05a3..d294e73 100644
--- a/examples/dreamcast/random/Makefile
+++ b/examples/dreamcast/random/Makefile
@@ -14,6 +14,8 @@ OBJS = random.o romdisk.o
 # from the named dir.
 KOS_ROMDISK_DIR = romdisk
 
+KOS_CFLAGS += -std=c99
+
 # The rm-elf step is to remove the target before building, to force the
 # re-creation of the rom disk.
 all: rm-elf $(TARGET)
diff --git a/kernel/arch/dreamcast/kernel/init.c b/kernel/arch/dreamcast/kernel/init.c
index 02efd4b..88bd685 100644
--- a/kernel/arch/dreamcast/kernel/init.c
+++ b/kernel/arch/dreamcast/kernel/init.c
@@ -116,7 +116,14 @@ int  __attribute__((weak)) arch_auto_init() {
     fs_pty_init();          /* Pty */
     fs_ramdisk_init();      /* Ramdisk */
     fs_romdisk_init();      /* Romdisk */
+
+/* The arc4random_buf() function used for random & urandom is only
+   available in newlib starting with version 2.4.0 */
+#if defined(__NEWLIB__) && !(__NEWLIB__ < 2 && __NEWLIB_MINOR__ < 4)
     fs_dev_init();          /* /dev/urandom etc. */
+#else
+#warning "/dev filesystem is not supported with Newlib < 2.4.0"
+#endif
 
     hardware_periph_init();     /* DC peripheral init */
 


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A pseudo Operating System for the Dreamcast.