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BZ #16613: Support TLS in audit libraries.
This commit fixes a bug where the dynamic loader would crash when loading audit libraries, via LD_AUDIT, where those libraries used TLS. The dynamic loader was not considering that the audit libraries would use TLS and failed to bump the TLS generation counter leaving TLS usage inconsistent after loading the audit libraries. https://sourceware.org/ml/libc-alpha/2014-02/msg00569.html
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Carlos O'Donell
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Feb 25, 2014
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,8 @@ | ||
#include <dlfcn.h> | ||
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int main(void) | ||
{ | ||
void *h = dlopen("$ORIGIN/tst-auditmod9b.so", RTLD_LAZY); | ||
int (*fp)(void) = dlsym(h, "f"); | ||
return fp() - 1; | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,15 @@ | ||
#include <stdint.h> | ||
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__thread int var; | ||
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unsigned int | ||
la_version (unsigned int v) | ||
{ | ||
return v; | ||
} | ||
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void | ||
la_activity (uintptr_t *cookie, unsigned int flag) | ||
{ | ||
++var; | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,6 @@ | ||
__thread int a; | ||
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int f(void) | ||
{ | ||
return ++a; | ||
} |
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