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authorMaxim Ostapenko <m.ostapenko@samsung.com>2016-07-08 12:47:42 (GMT)
committerChan Lee <chan45.lee@samsung.com>2017-07-20 04:24:43 (GMT)
commitf3c26b303fc7c2b134e961a4e70855ff64842579 (patch)
treedb704dfe60158330a53f3967ff1411503eb19f3e
parente5fcfa9186dc0e096b5ad4a85794fcc48e923464 (diff)
downloadqemu-sandbox/chanleebf/aarch64_fix.zip
qemu-sandbox/chanleebf/aarch64_fix.tar.gz
qemu-sandbox/chanleebf/aarch64_fix.tar.bz2
ASan-related hack to speedup aarch64 builds.sandbox/chanleebf/aarch64_fix
Switch off memory pages checks in qemu if memory regions are mapped by ASan Change-Id: I8233802ee35db00c799f5645072b8014f823b5c6 Signed-off-by: Maxim Ostapenko <m.ostapenko@samsung.com>
-rw-r--r--translate-all.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/translate-all.c b/translate-all.c
index 17f4260..64be03f 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -1083,6 +1083,16 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
void tb_invalidate_phys_range(tb_page_addr_t start, tb_page_addr_t end,
int is_cpu_write_access)
{
+#if TARGET_LONG_SIZE == 8
+ target_ulong asan_low_shadow_start = 0x0ffffff000;
+ target_ulong asan_shadow_gap_start = 0x1200000000;
+ target_ulong asan_high_shadow_start = 0x1400000000;
+
+ if (start == asan_low_shadow_start || start == asan_shadow_gap_start
+ || start == asan_high_shadow_start)
+ return;
+#endif
+
while (start < end) {
tb_invalidate_phys_page_range(start, end, is_cpu_write_access);
start &= TARGET_PAGE_MASK;
@@ -1814,6 +1824,16 @@ void page_set_flags(target_ulong start, target_ulong end, int flags)
flags |= PAGE_WRITE_ORG;
}
+#if TARGET_LONG_SIZE == 8
+ target_ulong asan_low_shadow_start = 0x0ffffff000;
+ target_ulong asan_shadow_gap_start = 0x1200000000;
+ target_ulong asan_high_shadow_start = 0x1400000000;
+
+ if (start == asan_low_shadow_start || start == asan_shadow_gap_start
+ || start == asan_high_shadow_start)
+ return;
+#endif
+
for (addr = start, len = end - start;
len != 0;
len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) {
@@ -1855,6 +1875,16 @@ int page_check_range(target_ulong start, target_ulong len, int flags)
end = TARGET_PAGE_ALIGN(start + len);
start = start & TARGET_PAGE_MASK;
+#if TARGET_LONG_SIZE == 8
+ target_ulong asan_low_shadow_start = 0x0ffffff000;
+ target_ulong asan_shadow_gap_start = 0x1200000000;
+ target_ulong asan_high_shadow_start = 0x1400000000;
+
+ if (start == asan_low_shadow_start || start == asan_shadow_gap_start
+ || start == asan_high_shadow_start)
+ return 0;
+#endif
+
for (addr = start, len = end - start;
len != 0;
len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) {