On Mon, Jul 02, 2007 at 08:16:35PM +0200, Robert Millan wrote:
> [...] I'm attaching a reverse diff of the commit, such that when applied
> to HEAD makes GRUB work again (verified) [1].
This patch broke. I'm updating it to HEAD. Removed some cosmetical changes
to make it less error-prone.
--
Robert Millan
<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)
-2007-02-21 Hollis Blanchard <[EMAIL PROTECTED]>
-
- * kern/powerpc/ieee1275/init.c (HEAP_SIZE): Removed.
- (HEAP_LIMIT): New macro.
- (grub_claim_heap): Claim memory up to `heaplimit'.
-
-2007-02-21 Hollis Blanchard <[EMAIL PROTECTED]>
-
- * conf/powerpc-ieee1275.rmk (kernel_elf_LDFLAGS): Link at 64KB.
- * kern/powerpc/ieee1275/init.c (_end): Add declaration.
- (_start): Likewise.
- (grub_arch_modules_addr): Return address after `_end'.
- * util/powerpc/ieee1275/grub-mkimage.c: Include grub/misc.h.
- (load_modules): Use new parameter as `p_paddr' and `p_vaddr'.
- (add_segments): Calculate `_end' from phdr size and location.
- (ALIGN_UP): Moved to ...
- * include/grub/misc.h: here.
- * include/grub/powerpc/ieee1275/kernel.h (GRUB_IEEE1275_MOD_ALIGN):
- New macro.
- (GRUB_IEEE1275_MODULE_BASE): Removed.
diff -ur grub2-bad/conf/powerpc-ieee1275.mk grub2-good/conf/powerpc-ieee1275.mk
--- grub2-bad/conf/powerpc-ieee1275.mk 2007-02-22 00:22:20.000000000 +0100
+++ grub2-good/conf/powerpc-ieee1275.mk 2006-12-13 23:34:04.000000000 +0100
@@ -468,7 +468,7 @@
kernel_elf_CFLAGS = $(COMMON_CFLAGS)
kernel_elf_ASFLAGS = $(COMMON_ASFLAGS)
kernel_elf_LDFLAGS = $(COMMON_LDFLAGS) -static-libgcc -lgcc \
- -Wl,-N,-S,-Ttext,0x10000,-Bstatic
+ -Wl,-N,-S,-Ttext,0x200000,-Bstatic
# Scripts.
sbin_SCRIPTS = grub-install
diff -ur grub2-bad/conf/powerpc-ieee1275.rmk grub2-good/conf/powerpc-ieee1275.rmk
--- grub2-bad/conf/powerpc-ieee1275.rmk 2007-02-22 00:22:20.000000000 +0100
+++ grub2-good/conf/powerpc-ieee1275.rmk 2006-12-13 23:30:19.000000000 +0100
@@ -74,7 +74,7 @@
kernel_elf_CFLAGS = $(COMMON_CFLAGS)
kernel_elf_ASFLAGS = $(COMMON_ASFLAGS)
kernel_elf_LDFLAGS = $(COMMON_LDFLAGS) -static-libgcc -lgcc \
- -Wl,-N,-S,-Ttext,0x10000,-Bstatic
+ -Wl,-N,-S,-Ttext,0x200000,-Bstatic
# Scripts.
sbin_SCRIPTS = grub-install
diff -ur grub2-bad/include/grub/powerpc/ieee1275/kernel.h grub2-good/include/grub/powerpc/ieee1275/kernel.h
--- grub2-bad/include/grub/powerpc/ieee1275/kernel.h 2007-02-22 00:22:20.000000000 +0100
+++ grub2-good/include/grub/powerpc/ieee1275/kernel.h 2006-04-23 15:37:36.000000000 +0200
@@ -22,9 +22,10 @@
#include <grub/symbol.h>
-#define GRUB_IEEE1275_MOD_ALIGN 0x1000
-
void EXPORT_FUNC (grub_reboot) (void);
void EXPORT_FUNC (grub_halt) (void);
+/* Where grub-mkimage places the core modules in memory. */
+#define GRUB_IEEE1275_MODULE_BASE 0x00300000
+
#endif /* ! GRUB_KERNEL_MACHINE_HEADER */
diff -ur grub2-bad/kern/powerpc/ieee1275/init.c grub2-good/kern/powerpc/ieee1275/init.c
--- grub2-bad/kern/powerpc/ieee1275/init.c 2007-02-22 00:27:36.000000000 +0100
+++ grub2-good/kern/powerpc/ieee1275/init.c 2007-02-13 04:49:43.000000000 +0100
@@ -34,10 +34,7 @@
#include <grub/ieee1275/ofdisk.h>
#include <grub/ieee1275/ieee1275.h>
-#define HEAP_LIMIT (4<<20) /* 4 MiB */
-
-extern char _start[];
-extern char _end[];
+#define HEAP_SIZE (8<<20) /* 8 MiB */
void
grub_exit (void)
@@ -114,27 +111,29 @@
}
/* Claim some available memory in the first /memory node. */
-static void grub_claim_heap (unsigned long heaplimit)
+static void grub_claim_heap (unsigned long heapsize)
{
+ unsigned long total = 0;
+
auto int heap_init (grub_uint64_t addr, grub_uint64_t len);
int heap_init (grub_uint64_t addr, grub_uint64_t len)
{
len -= 1; /* Required for some firmware. */
- /* Don't claim anything above `heaplimit'. */
- if (addr + len > heaplimit)
- len = heaplimit - addr;
-
- if (len)
- {
- /* Claim and use it. */
- if (grub_claimmap (addr, len) < 0)
- return grub_error (GRUB_ERR_OUT_OF_MEMORY,
- "Failed to claim heap at 0x%llx, len 0x%llx\n",
- addr, len);
- grub_mm_init_region ((void *) (grub_addr_t) addr, len);
- }
-
+ /* Limit heap to `heapsize'. */
+ if (total + len > heapsize)
+ len = heapsize - total;
+
+ /* Claim and use it. */
+ if (grub_claimmap (addr, len) < 0)
+ return grub_error (GRUB_ERR_OUT_OF_MEMORY,
+ "Failed to claim heap at 0x%llx, len 0x%llx\n",
+ addr, len);
+ grub_mm_init_region ((void *) (grub_addr_t) addr, len);
+
+ total += len;
+ if (total >= heapsize)
+ return 1;
return 0;
}
@@ -148,7 +147,7 @@
int actual;
grub_console_init ();
- grub_claim_heap (HEAP_LIMIT);
+ grub_claim_heap (HEAP_SIZE);
grub_ofdisk_init ();
/* Process commandline. */
@@ -206,5 +205,5 @@
grub_addr_t
grub_arch_modules_addr (void)
{
- return ALIGN_UP(_end, GRUB_IEEE1275_MOD_ALIGN);
+ return GRUB_IEEE1275_MODULE_BASE;
}
diff -ur grub2-bad/util/powerpc/ieee1275/grub-mkimage.c grub2-good/util/powerpc/ieee1275/grub-mkimage.c
--- grub2-bad/util/powerpc/ieee1275/grub-mkimage.c 2007-02-22 00:22:20.000000000 +0100
+++ grub2-good/util/powerpc/ieee1275/grub-mkimage.c 2006-09-26 06:24:38.000000000 +0200
@@ -97,8 +98,7 @@
}
void
-load_modules (grub_addr_t modbase, Elf32_Phdr *phdr, const char *dir,
- char *mods[], FILE *out)
+load_modules (Elf32_Phdr *phdr, const char *dir, char *mods[], FILE *out)
{
char *module_img;
struct grub_util_path_list *path_list;
@@ -152,8 +152,8 @@
phdr->p_type = grub_cpu_to_be32 (PT_LOAD);
phdr->p_flags = grub_cpu_to_be32 (PF_R | PF_W | PF_X);
phdr->p_align = grub_cpu_to_be32 (sizeof (long));
- phdr->p_vaddr = grub_cpu_to_be32 (modbase);
- phdr->p_paddr = grub_cpu_to_be32 (modbase);
+ phdr->p_vaddr = grub_cpu_to_be32 (GRUB_IEEE1275_MODULE_BASE);
+ phdr->p_paddr = grub_cpu_to_be32 (GRUB_IEEE1275_MODULE_BASE);
phdr->p_filesz = grub_cpu_to_be32 (total_module_size);
phdr->p_memsz = grub_cpu_to_be32 (total_module_size);
}
@@ -166,7 +166,6 @@
Elf32_Phdr *phdr;
FILE *in;
char *kernel_path;
- grub_addr_t grub_end = 0;
off_t phdroff;
int i;
@@ -184,7 +183,6 @@
for (i = 0; i < grub_be_to_cpu16 (ehdr.e_phnum); i++)
{
char *segment_img;
- grub_size_t segment_end;
phdr = phdrs + i;
@@ -196,13 +194,6 @@
grub_util_info ("copying segment %d, type %d", i,
grub_be_to_cpu32 (phdr->p_type));
- /* Locate _end. */
- segment_end = grub_be_to_cpu32 (phdr->p_paddr)
- + grub_be_to_cpu32 (phdr->p_memsz);
- grub_util_info ("segment %u end 0x%lx", i, segment_end);
- if (segment_end > grub_end)
- grub_end = segment_end;
-
/* Read segment data and write it to new file. */
segment_img = xmalloc (grub_be_to_cpu32 (phdr->p_filesz));
@@ -216,11 +207,6 @@
if (mods[0] != NULL)
{
- grub_addr_t modbase;
-
- /* Place modules just after grub segment. */
- modbase = ALIGN_UP(grub_end, GRUB_IEEE1275_MOD_ALIGN);
-
/* Construct new segment header for modules. */
phdr = phdrs + grub_be_to_cpu16 (ehdr.e_phnum);
ehdr.e_phnum = grub_cpu_to_be16 (grub_be_to_cpu16 (ehdr.e_phnum) + 1);
@@ -229,7 +215,7 @@
phdr->p_offset = grub_cpu_to_be32 (ALIGN_UP (grub_util_get_fp_size (out),
sizeof (long)));
- load_modules (modbase, phdr, dir, mods, out);
+ load_modules (phdr, dir, mods, out);
}
if (chrp)
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