Add MODE=optlinux build mode (#141)

tool/build/compile.c

@@ -139,6 +139,7 @@ bool wantrecord;
 bool fulloutput;
 bool touchtarget;
 bool inarticulate;
+bool wantnoredzone;
 bool stdoutmustclose;
 bool no_sanitize_null;
 bool no_sanitize_alignment;
@@ -749,6 +750,10 @@ int main(int argc, char *argv[]) {
       wantframe = true;
     } else if (!strcmp(argv[i], "-fomit-frame-pointer")) {
       wantframe = false;
+    } else if (!strcmp(argv[i], "-mno-red-zone")) {
+      wantnoredzone = true;
+    } else if (!strcmp(argv[i], "-mred-zone")) {
+      wantnoredzone = false;
     } else if (!strcmp(argv[i], "-mno-vzeroupper")) {
       if (isgcc) {
         AddArg("-Wa,-msse2avx");
@@ -864,8 +869,13 @@ int main(int argc, char *argv[]) {
     if (no_sanitize_pointer_overflow) {
       AddArg("-fno-sanitize=pointer-overflow");
     }
+    if (wantnoredzone) {
+      AddArg("-mno-red-zone");
+      AddArg("-D__MNO_RED_ZONE__");
+    }
     if (wantframe) {
       AddArg("-fno-omit-frame-pointer");
+      AddArg("-D__FNO_OMIT_FRAME_POINTER__");
     }
   }
 

tool/build/lib/getargs.c

@@ -117,7 +117,7 @@ const char *getargs_next(struct GetArgs *ga) {
         }
       }
       k = 0;
-#if defined(__x86__) && defined(__GNUC__) && !defined(__STRICT_ANSI__)
+#if defined(__SSE2__) && defined(__GNUC__) && !defined(__STRICT_ANSI__)
       typedef unsigned char xmm_t
           __attribute__((__vector_size__(16), __aligned__(1)));
       for (; ga->j + k + 16 <= ga->mapsize; k += 16) {

tool/emacs/cosmo-cpp-constants.el

@@ -160,8 +160,10 @@
    "__MNO_VZEROUPPER__"
    "__FSANITIZE_ADDRESS__"
    "__FSANITIZE_UNDEFINED__"
+   "__MNO_RED_ZONE__"
    "__MNOP_MCOUNT__"
-   "__MRECORD_MCOUNT__"))
+   "__MRECORD_MCOUNT__"
+   "__FNO_OMIT_FRAME_POINTER__"))
 
 (defconst cosmo-cpp-constants
   (append cosmo-cpp-constants-c11

tool/net/redbean.c

@@ -1847,7 +1847,7 @@ static bool OpenZip(bool force) {
       if ((m = mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) !=
           MAP_FAILED) {
         n = st.st_size;
-        if (endswith(zpath, ".com.dbg") && (p = memmem(m, n, "MZqFpD", 6))) {
+        if ((p = FindEmbeddedApe(m, n))) {
           b = p;
           n -= p - m;
         } else {