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[Bug 1001466] /dev/null serial driver
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: ecos-patches at ecos dot sourceware dot org
- Date: Thu, 16 Feb 2012 15:57:47 +0000
- Subject: [Bug 1001466] /dev/null serial driver
- Auto-submitted: auto-generated
- References: <bug-1001466-104@http.bugs.ecos.sourceware.org/>
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--- Comment #9 from Sergei Gavrikov <sergei.gavrikov@gmail.com> 2012-02-16 15:57:43 GMT ---
(In reply to comment #6)
> Maybe the proper solution is in the stdio lib?
My check for eCos fopen("/dev/null", ...) from the box
The eCos template:
cdl_configuration eCos {
template default ;
package CYGPKG_IO_FILEIO current ;
};
Example of GDB session:
% arm-eabi-gdb -q examples/hello
(gdb) target remote /dev/ttyUSB0
Remote debugging using /dev/ttyUSB0
0x00002d48 in ?? ()
(gdb) load
Loading section .rom_vectors, size 0x40 lma 0x81008000
Loading section .text, size 0x9714 lma 0x81008040
Loading section .rodata, size 0x344 lma 0x81011754
Loading section .data, size 0x484 lma 0x81011a98
Start address 0x81008040, load size 40732
Transfer rate: 3 KB/sec, 299 bytes/write.
(gdb) b main
Breakpoint 1 at 0x81008534: file hello.c, line 7.
(gdb) b exit
Breakpoint 2 at 0x81010ad0: file
/home/sg/repo/ecos-hg/packages/language/c/libc/startup/current/src/exit.cxx,
line 74.
(gdb) cont
Continuing.
[New Thread 2]
[Switching to Thread 2]
Breakpoint 1, main () at hello.c:7
7 FILE *fh = fopen("/dev/null", "r+");
(gdb) l
2 #include <stdlib.h>
3
4 int
5 main(void)
6 {
7 FILE *fh = fopen("/dev/null", "r+");
8 fprintf(stdout, "Hello, eCos world! (at stdout)\n");
9 fprintf(fh, "Hello, eCos world! (at /dev/null)\n");
10 fclose(fh);
11 fprintf(stdout, "Bye! (at stdout)\n");
(gdb) cont
Continuing.
Hello, eCos world! (at stdout)
Bye! (at stdout)
Breakpoint 2, exit (status=0)
at
/home/sg/repo/ecos-hg/packages/language/c/libc/startup/current/src/exit.cxx:74
74 exit( int status )
Current language: auto; currently c++
(gdb)
And what you get?
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