https://sourceware.org/bugzilla/show_bug.cgi?id=21128
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-6 pr21128]$ cat x.c
static int
foo_static_0()
{
return 1;
}
static int
foo_static_1()
{
return 1;
}
int main()
{
foo_static_0();
foo_static_1();
return 0;
}
[hjl@gnu-6 pr21128]$ make
gcc -ffunction-sections -c -o x.o x.c
./ld --icf=safe -Map x.map -o x x.o
./ld -shared --icf=safe -Map x.so.map -o x.so x.os
[hjl@gnu-6 pr21128]$ head -10 x.map
Discarded input sections
.text.foo_static_1
0x0000000000000000 0xb x.o
.note.GNU-stack
0x0000000000000000 0x0 x.o
Memory map
[hjl@gnu-6 pr21128]$ head -10 x.so.map
Discarded input sections
.note.GNU-stack
0x0000000000000000 0x0 x.os
Memory map
** file header
0x0000000000000000 0x40
[hjl@gnu-6 pr21128]$
Why can't foo_static_0 and foo_static_1 be folded in a shared object?
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