[syslinux:elflink] elflink: make linux kernel booting

[syslinux-bot for Feng Tang]

Commit-ID:  63f0469c9012fde38c91bf22252b93c3af24b2af
Gitweb:     http://syslinux.zytor.com/commit/63f0469c9012fde38c91bf22252b93c3af24b2af
Author:     Feng Tang <feng.tang at intel.com>
AuthorDate: Mon, 21 Jun 2010 17:21:12 +0800
Committer:  Feng Tang <feng.tang at intel.com>
CommitDate: Tue, 20 Jul 2010 11:10:04 +0800

elflink: make linux kernel booting

* modify execute.c to not using __com32.cs_bounce but lmalloc/lfree
* give core/malloc 32M memory

Now the kernel is loading ok, but "memdisk initrd=doshd.img" is not
working, need ask hpa if he has a new doshd.img


---
 core/elflink/execute.c |   12 +++++++++++-
 core/mem/init.c        |    3 ++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/core/elflink/execute.c b/core/elflink/execute.c
index 1a7ce79..08946aa 100644
--- a/core/elflink/execute.c
+++ b/core/elflink/execute.c
@@ -21,7 +21,8 @@ void execute(const char *cmdline, enum kernel_type type)
 {
 	com32sys_t ireg;
 	const char *p, *const *pp;
-	char *q = __com32.cs_bounce;
+	//char *q = __com32.cs_bounce;
+	char *q;
 	const char *kernel, *args;
 
 	/* work around for spawn_load parameter */
@@ -29,6 +30,13 @@ void execute(const char *cmdline, enum kernel_type type)
 
 	memset(&ireg, 0, sizeof ireg);
 
+	q = lmalloc(128);
+	if (!q) {
+		printf("%s(): Fail to lmalloc a buffer to exec %s\n",
+			__func__, cmdline);
+		return;
+	}
+
 	kernel = q;
 	p = cmdline;
 	while (*p && !my_isspace(*p))
@@ -81,5 +89,7 @@ void execute(const char *cmdline, enum kernel_type type)
 		__intcall(0x22, &ireg, NULL);
 	}
 
+	lfree(kernel);
+
 	/* If this returns, something went bad; return to menu */
 }
diff --git a/core/mem/init.c b/core/mem/init.c
index 497c213..cf45104 100644
--- a/core/mem/init.c
+++ b/core/mem/init.c
@@ -8,7 +8,8 @@
 struct free_arena_header __core_malloc_head[NHEAP];
 
 //static __hugebss char main_heap[128 << 10];
-static __hugebss char main_heap[128 << 13];
+/* change it to 32M */
+static __hugebss char main_heap[32 << 20];
 extern char __lowmem_heap[];
 
 void mem_init(void)