File: attr-weak.c

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (27 lines) | stat: -rw-r--r-- 1,404 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
// RUN: %clang_cc1 -verify -fsyntax-only %s

extern int f0(void) __attribute__((weak));
extern int g0 __attribute__((weak));
extern int g1 __attribute__((weak_import));
int f2(void) __attribute__((weak));
int g2 __attribute__((weak));
int g3 __attribute__((weak_import)); // expected-warning {{'weak_import' attribute cannot be specified on a definition}}
int __attribute__((weak_import)) g4(void);
void __attribute__((weak_import)) g5(void) {
}

struct __attribute__((weak)) s0 {}; // expected-warning {{'weak' attribute only applies to variables, functions, and classes}}
struct __attribute__((weak_import)) s1 {}; // expected-warning {{'weak_import' attribute only applies to variables and functions}}

static int f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}
static int x __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}

// rdar://9538608
int C; // expected-note {{previous declaration is here}}
extern int C __attribute__((weak_import)); // expected-warning {{an already-declared variable is made a weak_import declaration}}

static int pr14946_x;
extern int pr14946_x  __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}

static void pr14946_f(void);
void pr14946_f(void) __attribute__((weak)); // expected-error {{weak declaration cannot have internal linkage}}