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mips: acquire exact page size using sysconf for unit_libcbase

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Set exact value of VKI_PAGE_SIZE by calling sysconf(_SC_PAGESIZE).
This should set a correct value to this variable on MIPS systems with
different page sizes.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15817
This commit is contained in:
Petar Jovanovic 2016-02-27 00:38:38 +00:00
parent 1df0d33a8c
commit 23ac24e19b
1 changed files with 14 additions and 8 deletions
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22
memcheck/tests/unit_libcbase.c
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@ -9,6 +9,17 @@
#include "pub_tool_vki.h"
#include "m_libcbase.c"
/* On PPC, MIPS and ARM64 Linux VKI_PAGE_SIZE is a variable, not a macro. */
#if defined(VGP_ppc32_linux) || defined(VGP_ppc64be_linux) \
|| defined(VGP_ppc64le_linux)
unsigned long VKI_PAGE_SIZE = 1UL << 12;
#elif defined(VGP_arm64_linux)
unsigned long VKI_PAGE_SIZE = 1UL << 16;
#elif defined(VGP_mips32_linux) || defined(VGP_mips64_linux)
#include <unistd.h>
unsigned long VKI_PAGE_SIZE;
#endif
/* Provide a stub to not have to pull in m_debuglog.c */
void VG_(debugLog) ( Int level, const HChar* modulename,
const HChar* format, ... )
@ -74,14 +85,6 @@ void test_VG_STREQN(void)
CHECK( VG_STREQN(3, "abcd", "abce"));
}
// On PPC/Linux VKI_PAGE_SIZE is a variable, not a macro.
#if defined(VGP_ppc32_linux) || defined(VGP_ppc64be_linux) \
|| defined(VGP_ppc64le_linux)
unsigned long VKI_PAGE_SIZE = 1UL << 12;
#elif defined(VGP_arm64_linux)
unsigned long VKI_PAGE_SIZE = 1UL << 16;
#endif
void test_VG_IS_XYZ_ALIGNED(void)
{
CHECK( VG_IS_2_ALIGNED(0x0) );
@ -485,6 +488,9 @@ void test_random(void)
int main(void)
{
#if defined(VGP_mips32_linux) || defined(VGP_mips64_linux)
VKI_PAGE_SIZE = sysconf(_SC_PAGESIZE);
#endif
// Nb: the order of the tests is based on the order of the code in
// m_libcbase.c, except that macros defined in pub_tool_libcbase.h are
// tested first.