openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

selftests/powerpc: Update the stack expansion test 

Update the stack expansion load/store test to take into account the
new allowance of 4224 bytes below the stack pointer.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200724092528.1578671-3-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman 2020-07-24 19:25:26 +10:00
parent 63dee5df43
commit 9ee571d84b
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
View File

@ -186,17 +186,17 @@ static void test_one_type(enum access_type type, unsigned long page_size, unsign
// But if we go past the rlimit it should fail
assert(test_one(DEFAULT_SIZE, rlim_cur + 1, type) != 0);
// Above 1MB powerpc only allows accesses within 2048 bytes of
// Above 1MB powerpc only allows accesses within 4224 bytes of
// r1 for accesses that aren't stdu
assert(test_one(1 * _MB + page_size - 128, -2048, type) == 0);
assert(test_one(1 * _MB + page_size - 128, -4224, type) == 0);
#ifdef __powerpc__
assert(test_one(1 * _MB + page_size - 128, -2049, type) != 0);
assert(test_one(1 * _MB + page_size - 128, -4225, type) != 0);
#else
assert(test_one(1 * _MB + page_size - 128, -2049, type) == 0);
assert(test_one(1 * _MB + page_size - 128, -4225, type) == 0);
#endif
// By consuming 2MB of stack we test the stdu case
assert(test_one(2 * _MB + page_size - 128, -2048, type) == 0);
assert(test_one(2 * _MB + page_size - 128, -4224, type) == 0);
}
static int test(void)