mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
107 lines
2.0 KiB
C
107 lines
2.0 KiB
C
/* This small function uses all the arithmetic operators that
|
|
libgcc1.c can handle. If you can link it, then
|
|
you have provided replacements for all the libgcc1.c functions that
|
|
your target machine needs. */
|
|
|
|
int foo ();
|
|
double dfoo ();
|
|
|
|
/* We don't want __main here because that can drag in atexit (among other
|
|
things) which won't necessarily exist yet. */
|
|
|
|
main_without__main ()
|
|
{
|
|
int a = foo (), b = foo ();
|
|
unsigned int au = foo (), bu = foo ();
|
|
float af = dfoo (), bf = dfoo ();
|
|
double ad = dfoo (), bd = dfoo ();
|
|
|
|
discard (a * b);
|
|
discard (a / b);
|
|
discard (a % b);
|
|
|
|
discard (au / bu);
|
|
discard (au % bu);
|
|
|
|
discard (a >> b);
|
|
discard (a << b);
|
|
|
|
discard (au >> bu);
|
|
discard (au << bu);
|
|
|
|
ddiscard (ad + bd);
|
|
ddiscard (ad - bd);
|
|
ddiscard (ad * bd);
|
|
ddiscard (ad / bd);
|
|
ddiscard (-ad);
|
|
|
|
ddiscard (af + bf);
|
|
ddiscard (af - bf);
|
|
ddiscard (af * bf);
|
|
ddiscard (af / bf);
|
|
ddiscard (-af);
|
|
|
|
discard ((int) ad);
|
|
discard ((int) af);
|
|
|
|
ddiscard ((double) a);
|
|
ddiscard ((float) a);
|
|
ddiscard ((float) ad);
|
|
|
|
discard (ad == bd);
|
|
discard (ad < bd);
|
|
discard (ad > bd);
|
|
discard (ad != bd);
|
|
discard (ad <= bd);
|
|
discard (ad >= bd);
|
|
|
|
discard (af == bf);
|
|
discard (af < bf);
|
|
discard (af > bf);
|
|
discard (af != bf);
|
|
discard (af <= bf);
|
|
discard (af >= bf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
discard (x)
|
|
int x;
|
|
{}
|
|
|
|
ddiscard (x)
|
|
double x;
|
|
{}
|
|
|
|
foo ()
|
|
{
|
|
static int table[] = {20, 69, 4, 12};
|
|
static int idx;
|
|
|
|
return table[idx++];
|
|
}
|
|
|
|
double
|
|
dfoo ()
|
|
{
|
|
static double table[] = {20.4, 69.96, 4.4, 202.202};
|
|
static int idx;
|
|
|
|
return table[idx++];
|
|
}
|
|
|
|
/* Provide functions that some versions of the linker use to default
|
|
the start address if -e symbol is not used, to avoid the warning
|
|
message saying the start address is defaulted. */
|
|
extern void start() __asm__("start");
|
|
extern void _start() __asm__("_start");
|
|
extern void __start() __asm__("__start");
|
|
|
|
/* Provide functions that might be needed by soft-float emulation routines. */
|
|
void memcpy() {}
|
|
|
|
void start() {}
|
|
void _start() {}
|
|
void __start() {}
|
|
void mainCRTStartup() {}
|