testing/test-cases/kernel-fixups.dtest/main.c

   1
   2 // BOOT_ARGS: amfi=3 cs_enforcement_disable=1
   3
   4 // BUILD(macos,ios,tvos,bridgeos|x86_64,arm64,arm64e):  $CC main.c -o $BUILD_DIR/kernel-fixups.exe -Wl,-static -mkernel -nostdlib -Wl,-add_split_seg_info -Wl,-e,__start -Wl,-pie -Wl,-pagezero_size,0x0 -Wl,-install_name,/usr/lib/swift/split.seg.v2.hack -fno-stack-protector -fno-builtin -ffreestanding -Wl,-segprot,__HIB,rx,rx -Wl,-image_base,0x8000 -Wl,-segaddr,__HIB,0x4000  -fno-ptrauth-function-pointer-type-discrimination -ftrivial-auto-var-init=uninitialized
   5 // BUILD(macos,ios,tvos,bridgeos|x86_64,arm64,arm64e):  $APP_CACHE_UTIL -create-kernel-collection $BUILD_DIR/kernel.kc -kernel $BUILD_DIR/kernel-fixups.exe
   6
   7 // BUILD(watchos):
   8
   9
  10 // RUN_STATIC:    $RUN_STATIC ./kernel.kc
  11
  12 #include "../kernel-test-runner.h"
  13 #include "../kernel-fixups.h"
  14 #include "../kernel-classic-relocs.h"
  15
  16 #define printf(...) funcs->printf(__VA_ARGS__)
  17
  18 int x = 1;
  19 int *g = &x;
  20
  21 #if __x86_64__
  22 __attribute__((section(("__HIB, __text"))))
  23 #else
  24 __attribute__((section(("__TEXT_EXEC, __text"))))
  25 #endif
  26 int _start(const TestRunnerFunctions* funcs)
  27 {
  28     setFuncs(funcs);
  29
  30     const void* slideBasePointers[4];
  31     slideBasePointers[0] = funcs->basePointers[0];
  32     slideBasePointers[1] = funcs->basePointers[1];
  33     slideBasePointers[2] = funcs->basePointers[2];
  34     slideBasePointers[3] = funcs->basePointers[3];
  35     int slideReturnCode = slide(funcs->mhs[0], slideBasePointers, funcs->printf);
  36     if ( slideReturnCode != 0 ) {
  37         FAIL("slide = %d\n", slideReturnCode);
  38         return 0;
  39     }
  40
  41     int slideClassicReturnCode = slideClassic(funcs->mhs[0], funcs->printf);
  42     if ( slideClassicReturnCode != 0 ) {
  43         FAIL("mhs[0] slide classic = %d\n", slideClassicReturnCode);
  44         return 0;
  45     }
  46
  47     LOG("Done sliding");
  48
  49     if ( g[0] != x ) {
  50         FAIL("g[0] != x, %d != %d\n", g[0], x);
  51         return 0;
  52     }
  53
  54     PASS("Success");
  55     return 0;
  56 }
  57
  58