| 1 | // REQUIRES: system-linux |
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| 2 | |
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| 3 | /* |
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| 4 | * Check that llvm-bolt uses reserved space in a binary for allocating |
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| 5 | * new sections. |
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| 6 | */ |
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| 7 | |
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| 8 | // RUN: %clangxx %s -o %t.exe -Wl,-q |
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| 9 | // RUN: llvm-bolt %t.exe -o %t.bolt.exe 2>&1 | FileCheck %s |
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| 10 | // RUN: %t.bolt.exe |
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| 11 | |
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| 12 | // CHECK: BOLT-INFO: using reserved space |
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| 13 | |
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| 14 | /* |
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| 15 | * Check that llvm-bolt detects a condition when the reserved space is |
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| 16 | * not enough for allocating new sections. |
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| 17 | */ |
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| 18 | |
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| 19 | // RUN: %clangxx %s -o %t.tiny.exe -Wl,--no-eh-frame-hdr -Wl,-q -DTINY |
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| 20 | // RUN: not llvm-bolt %t.tiny.exe -o %t.tiny.bolt.exe 2>&1 | \ |
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| 21 | // RUN: FileCheck %s --check-prefix=CHECK-TINY |
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| 22 | |
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| 23 | // CHECK-TINY: BOLT-ERROR: reserved space (1 byte) is smaller than required |
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| 24 | |
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| 25 | #ifdef TINY |
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| 26 | #define RSIZE "1" |
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| 27 | #else |
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| 28 | #define RSIZE "8192 * 1024" |
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| 29 | #endif |
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| 30 | |
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| 31 | asm(".pushsection .text \n\ |
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| 32 | .globl __bolt_reserved_start \n\ |
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| 33 | .type __bolt_reserved_start, @object \n\ |
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| 34 | __bolt_reserved_start: \n\ |
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| 35 | .space " RSIZE " \n\ |
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| 36 | .globl __bolt_reserved_end \n\ |
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| 37 | __bolt_reserved_end: \n\ |
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| 38 | .popsection" ); |
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| 39 | |
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| 40 | int main() { return 0; } |
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| 41 | |
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