| 1 | /* Test module for making nonexecutable stacks executable |
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| 2 | on load of a DSO that requires executable stacks. */ |
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| 3 | |
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| 4 | #include <stdbool.h> |
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| 5 | #include <stdio.h> |
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| 6 | #include <stdlib.h> |
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| 7 | |
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| 8 | void callme (void (*callback) (void)); |
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| 9 | |
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| 10 | /* This is a function that makes use of executable stack by |
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| 11 | using a local function trampoline. */ |
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| 12 | void |
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| 13 | tryme (void) |
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| 14 | { |
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| 15 | bool ok = false; |
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| 16 | void callback (void) { ok = true; } |
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| 17 | |
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| 18 | callme (callback: &callback); |
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| 19 | |
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| 20 | if (ok) |
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| 21 | printf (format: "DSO called ok (local %p, trampoline %p)\n" , &ok, &callback); |
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| 22 | else |
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| 23 | abort (); |
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| 24 | } |
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| 25 | |
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| 26 | void |
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| 27 | callme (void (*callback) (void)) |
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| 28 | { |
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| 29 | (*callback) (); |
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| 30 | } |
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| 31 | |
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