File: call-site-entry-reloc.test

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (29 lines) | stat: -rw-r--r-- 1,016 bytes parent folder | download | duplicates (11) 
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
28
29
 
Test binaries created with the following commands:

$ cat call.c
__attribute__((noinline, noreturn)) void foo() {
    asm volatile("" ::: "memory");
      __builtin_unreachable();
}
__attribute__((noinline)) void bar() {
    asm volatile("nop" :::);
      foo();
}

int main() { bar(); }

$ clang -g call.c -fomit-frame-pointer -c -Os -o call.o
$ clang -g call.o -o call

The test requires the return PC to match a relocation (in this case the
DW_AT_high_pc of main). Without this change the value would get relocated
twice.

RUN: dsymutil -oso-prepend-path %p/../Inputs %p/../Inputs/private/tmp/call_return_pc/call -o %t.dSYM
RUN: llvm-dwarfdump %t.dSYM | FileCheck %s -implicit-check-not=DW_AT_call_return_pc

RUN: dsymutil --linker parallel -oso-prepend-path %p/../Inputs %p/../Inputs/private/tmp/call_return_pc/call -o %t.dSYM
RUN: llvm-dwarfdump %t.dSYM | FileCheck %s -implicit-check-not=DW_AT_call_return_pc

CHECK: DW_AT_call_return_pc  (0x0000000100000f72)
CHECK: DW_AT_call_return_pc  (0x0000000100000f78)