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| author | Michael Brown | 2007-01-12 01:09:16 +0100 |
|---|---|---|
| committer | Michael Brown | 2007-01-12 01:09:16 +0100 |
| commit | e4c6418ac086ff1cbad48c5f08b5fa693400d080 (patch) | |
| tree | 51f1e98144276f1aac979746e5e0605d91c0fc12 /src/arch | |
| parent | Allow for named images. (diff) | |
| download | ipxe-e4c6418ac086ff1cbad48c5f08b5fa693400d080.tar.gz ipxe-e4c6418ac086ff1cbad48c5f08b5fa693400d080.tar.xz ipxe-e4c6418ac086ff1cbad48c5f08b5fa693400d080.zip | |
We may be required to page-align modules, so let's make sure we catch
it if we don't.
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/i386/image/multiboot.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/arch/i386/image/multiboot.c b/src/arch/i386/image/multiboot.c index 2370a304a..b9fb16396 100644 --- a/src/arch/i386/image/multiboot.c +++ b/src/arch/i386/image/multiboot.c @@ -24,6 +24,7 @@ */ #include <errno.h> +#include <assert.h> #include <alloca.h> #include <multiboot.h> #include <gpxe/uaccess.h> @@ -106,10 +107,12 @@ multiboot_build_module_list ( struct image *image, unsigned int count = 0; for_each_image ( module_image ) { - /* Do not include kernel image as a module */ + + /* Do not include kernel image itself as a module */ if ( module_image == image ) continue; module = &modules[count++]; + /* Populate module data structure, if applicable */ if ( ! modules ) continue; @@ -118,6 +121,9 @@ multiboot_build_module_list ( struct image *image, module_image->len ); if ( image->cmdline ) module->string = virt_to_phys ( image->cmdline ); + + /* We promise to page-align modules, so at least check */ + assert ( ( module->mod_start & 0xfff ) == 0 ); } return count; |