Hi,
I successfully built the sh-elf cross compiler on the
x86/linux host enabled with libmudflap by specifying the
correct entry point in libmudflap's configure file.
(newlib-1.15.0 was used)
I compiled a simple c code with following options on
linux shell:
sh-elf-gcc -fmudflap test.c -static -lmudflap -o test.out
Then I set the MUDFLAP_OPTIONS environment variable as
-print-leaks and executed the generated test.out file on
the sh-elf simulator. Nothing got displayed.
Following code snippet from __mf_init() function present
in mf-runtime.c is causing problem:
/////////////////////////////////////////////////////
.
.
ov = getenv ("MUDFLAP_OPTIONS");
if (ov)
{
int rc = __mfu_set_options (ov);
if (rc < 0)
{
__mf_usage ();
exit (1);
}
}
/* Initialize to a non-zero description epoch. */
__mf_describe_object (NULL);
.
.
/////////////////////////////////////////////////////
getenv("MUDFLAP_OPTIONS") function call returns NULL
because __environ is pointing to null terminated pointer
array. Hence the options are not setting.
How to make x86/linux shell's environment variable
(MUDFLAP_OPTIONS) accessible to test.out while executing
it through the sh-elf simulator?
Regards,
Deepen Mantri
KPIT Cummins InfoSystems Ltd.
Pune, India
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