lib/zstd
1
0
Fork 0
mirror of https://github.com/facebook/zstd.git synced 2025-07-29 11:21:22 +03:00
Code Activity

[contrib][linux-kernel] Fix stack detection for newer gcc

Browse Source 
Newer gcc versions were getting smart and omitting the `memset()`.
Get around this issue by outlining the `memset()` into a different
function. This test is still hacky, but it works...
This commit is contained in:
Nick Terrell
2022-12-13 15:03:23 -08:00
committed by Nick Terrell
parent b0bcbbfe16
commit e767d5c7c1
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
contrib/linux-kernel/test/test.c
View File

@ -186,11 +186,14 @@ static void __attribute__((noinline)) use(void *x) {
asm volatile("" : "+r"(x)); asm volatile("" : "+r"(x));
} }
static void __attribute__((noinline)) fill_stack(void) {
memset(g_stack, 0x33, 8192);
}
static void __attribute__((noinline)) set_stack(void) { static void __attribute__((noinline)) set_stack(void) {
char stack[8192]; char stack[8192];
g_stack = stack; g_stack = stack;
memset(g_stack, 0x33, 8192);
use(g_stack); use(g_stack);
} }
@ -208,6 +211,7 @@ static void __attribute__((noinline)) check_stack(void) {
static void test_stack_usage(test_data_t const *data) { static void test_stack_usage(test_data_t const *data) {
set_stack(); set_stack();
fill_stack();
test_f2fs(); test_f2fs();
test_btrfs(data); test_btrfs(data);
test_decompress_unzstd(data); test_decompress_unzstd(data);