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Increase stack size to 128k and guard size to 16k

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This improves our compatibility with Apple M1.
This commit is contained in:
Justine Tunney 2022-12-18 22:58:29 -08:00
parent 57c0dcdc29
commit dd04aeba1c
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GPG key ID: BE714B4575D6E328
36 changed files with 109 additions and 125 deletions
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13
net/turfwar/turfwar.c
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@ -46,6 +46,7 @@
#include "libc/runtime/internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/stack.h"
#include "libc/runtime/sysconf.h"
#include "libc/sock/sock.h"
#include "libc/sock/struct/pollfd.h"
#include "libc/sock/struct/sockaddr.h"
@ -114,7 +115,7 @@
#define SOCK_MAX 100 // max length of socket queue
#define MSG_BUF 512 // small response lookaside
#define INBUF_SIZE PAGESIZE
#define INBUF_SIZE FRAMESIZE
#define OUTBUF_SIZE 8192
#define TB_BYTES (1u << TB_CIDR)
@ -632,16 +633,18 @@ static bool GetNick(char *inbuf, struct HttpMessage *msg, struct Claim *v) {
// so if it gets hacked it'll at least crash instead of get compromised
void *NewSafeBuffer(size_t n) {
char *p;
size_t m = ROUNDUP(n, PAGESIZE);
_npassert((p = valloc(m + PAGESIZE)));
_npassert(!mprotect(p + m, PAGESIZE, PROT_NONE));
long pagesize = sysconf(_SC_PAGESIZE);
size_t m = ROUNDUP(n, pagesize);
_npassert((p = valloc(m + pagesize)));
_npassert(!mprotect(p + m, pagesize, PROT_NONE));
return p;
}
// frees memory with hardware-accelerated buffer overflow detection
void FreeSafeBuffer(void *p) {
long pagesize = sysconf(_SC_PAGESIZE);
size_t n = malloc_usable_size(p);
size_t m = ROUNDDOWN(n, PAGESIZE);
size_t m = ROUNDDOWN(n, pagesize);
_npassert(!mprotect(p, m, PROT_READ | PROT_WRITE));
free(p);
}