Viewing file:  bti-4.c (1.38 KB) -rw-r--r--
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/* { dg-do compile } */
/* If configured with --enable-standard-branch-protection, disable it. */
/* { dg-additional-options "-mbranch-protection=none" { target { default_branch_protection } } } */
void f1 (void *);
void f2 (void *);
void f3 (void *, void (*)(void *));
int
retbr_trampolines (void *a, int b)
{
if (!b)
{
f1 (a);
return 1;
}
if (b)
{
/* Suppress "ISO C forbids nested functions" warning. */
_Pragma("GCC diagnostic push")
_Pragma("GCC diagnostic ignored \"-Wpedantic\"")
void retbr_tramp_internal (void *c)
{
_Pragma("GCC diagnostic pop")
if (c == a)
f2 (c);
}
f3 (a, retbr_tramp_internal);
}
return 0;
}
__attribute__((target("branch-protection=bti,arch=armv8.3-a")))
int
retbr_trampolines2 (void *a, int b)
{
if (!b)
{
f1 (a);
return 1;
}
if (b)
{
/* Suppress "ISO C forbids nested functions" warning. */
_Pragma("GCC diagnostic push")
_Pragma("GCC diagnostic ignored \"-Wpedantic\"")
__attribute__((target("branch-protection=bti,arch=armv8.3-a")))
void retbr_tramp_internal2 (void *c)
{
_Pragma("GCC diagnostic pop")
if (c == a)
f2 (c);
}
f3 (a, retbr_tramp_internal2);
}
return 0;
}
/* Trampoline should have BTI C. */
/* { dg-final { scan-assembler "\.LTRAMP0:\n\thint\t34" } } */
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