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Add up_addrenv_coherent which will be called before address environment switches

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This commit is contained in:
Gregory Nutt
2014-08-26 14:53:19 -06:00
parent 519e9c85e9
commit 0db7da1858
4 changed files with 108 additions and 2 deletions
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binfmt/libelf/libelf_bind.c
+15 -2
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@@ -312,16 +312,19 @@ int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
}
}
#ifdef CONFIG_ARCH_HAVE_COHERENT_DCACHE
#if defined(CONFIG_ARCH_ADDRENV)
/* Ensure that the I and D caches are coherent before starting the newly
* loaded module by cleaning the D cache (i.e., flushing the D cache
* contents to memory and invalidating the I cache).
*/
#if 0 /* REVISIT... has some problems */
(void)up_addrenv_coherent(&loadinfo->addrenv);
#else
up_coherent_dcache(loadinfo->textalloc, loadinfo->textsize);
up_coherent_dcache(loadinfo->dataalloc, loadinfo->datasize);
#endif
#ifdef CONFIG_ARCH_ADDRENV
/* Restore the original address environment */
status = elf_addrenv_restore(loadinfo);
@@ -333,6 +336,16 @@ int elf_bind(FAR struct elf_loadinfo_s *loadinfo,
ret = status;
}
}
#elif defined(CONFIG_ARCH_HAVE_COHERENT_DCACHE)
/* Ensure that the I and D caches are coherent before starting the newly
* loaded module by cleaning the D cache (i.e., flushing the D cache
* contents to memory and invalidating the I cache).
*/
up_coherent_dcache(loadinfo->textalloc, loadinfo->textsize);
up_coherent_dcache(loadinfo->dataalloc, loadinfo->datasize);
#endif
return ret;