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LibELF: Split the DynamicLoader's loading mechanism into two steps
load_from_image() becomes map() and link(). This allows us to map an object before mapping its dependencies. This solves an issue where fixed-position executables (like GCC) would clash with the ASLR placement of their own shared libraries.
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4 changed files with 19 additions and 13 deletions
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@ -49,7 +49,10 @@ public:
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// Load a full ELF image from file into the current process and create an DynamicObject
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// from the SHT_DYNAMIC in the file.
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RefPtr<DynamicObject> load_from_image(unsigned flags, size_t total_tls_size);
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// Note that the DynamicObject will not be linked yet. Callers are responsible for calling link() to finish it.
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RefPtr<DynamicObject> map();
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bool link(unsigned flags, size_t total_tls_size);
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// Stage 2 of loading: dynamic object loading and primary relocations
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bool load_stage_2(unsigned flags, size_t total_tls_size);
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