I am trying to compile this code fragment into my program (taken from
lib/libc/amd64/sys/sbrk.S):
void my_func() {
...
__asm__ __volatile__(
"movq .curbrk(%%rip), %%rax;"
"lea .curbrk(%%rip), %%rdx;"
"movq %%rax, %0;"
"movq %%rdx, %1;"
: "=r" (my_curbrk),
"=r" (my_curbrk_ptr)
:: "%rax", "%rdx");
...
}
I get a warning:
/usr/bin/ld: warning: type and size of dynamic symbol
`.curbrk@@FBSDprivate_1.0' are not defined
What is the correct way to declare .curbrk in in-place assembly?
Yuri
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