Fixes for gcc 3.4 20040118.

committer: mfx <mfx> 1074619023 +0000

src/stub/Makefile

@@ -95,10 +95,11 @@ ifeq (1,2)
   CC_LINUX_I386 += -malign-functions=0 -malign-jumps=0 -malign-loops=0
   CC_LINUX_I386 += -Werror
 else
-  # gcc 3.4 (fold_*.bin: 1549 / 1043 / 1331)
+  # gcc 3.4 20040118 (fold_*.bin: 1552 / 1043 / 1320)
   #   info: -mcpu=k6 procduces the smallest code
   CC_LINUX_I386  = gcc-3.4 -march=i386 -mtune=k6 -Os -fno-omit-frame-pointer -fno-exceptions
   CC_LINUX_I386 += -fno-align-functions -fno-align-jumps -fno-align-labels -fno-align-loops
+  CC_LINUX_I386 += -fweb
   CC_LINUX_I386 += -Werror
 endif
 endif

src/stub/l_lx_elf.c

@@ -179,8 +179,8 @@ ERR_LAB
 void *
 make_hatch(Elf32_Phdr const *const phdr)
 {
+    unsigned *hatch = 0;
     if (phdr->p_type==PT_LOAD && phdr->p_flags & PF_X) {
-        unsigned *hatch;
         // The format of the 'if' is
         //  if ( ( (hatch = loc1), test_loc1 )
         //  ||   ( (hatch = loc2), test_loc2 ) ) {
@@ -199,23 +199,23 @@ make_hatch(Elf32_Phdr const *const phdr)
             // Omitting 'const' saves repeated literal in gcc.
             unsigned /*const*/ escape = 0xc36180cd;  // "int $0x80; popa; ret"
             // Don't store into read-only page if value is already there.
-            if (*hatch != escape) {
-                *hatch  = escape;
+            if (* (volatile unsigned*) hatch != escape) {
+                * hatch  = escape;
+            }
+        }
     }
     return hatch;
-        }
-    }
-    return 0;
 }
 
 static void
 __attribute__ ((regparm(2), stdcall))
-bzero(char *p, size_t len)
+upx_bzero(char *p, size_t len)
 {
     if (len) do {
         *p++= 0;
     } while (--len);
 }
+#define bzero upx_bzero
 
 
 static void

src/stub/linux.hh

@@ -275,6 +275,7 @@ type name(type1 arg1,type2 arg2,type3 arg3) \
 }
 
 #define access          syscall_access
+#define _exit           syscall_exit
 #define fcntl           syscall_fcntl
 #define getcwd          syscall_getcwd
 #define getrusage       syscall_getrusage