#include <unistd.h>
#include <string.h>
+/* CHRP note section */
char arch[] = "PowerPC";
#define N_DESCR 6
0x4000, /* load-base */
};
+/* RPA note section */
+char rpaname[] = "IBM,RPA-Client-Config";
+
+/*
+ * Note: setting ignore_my_client_config *should* mean that OF ignores
+ * all the other fields, but there is a firmware bug which means that
+ * it looks at the splpar field at least. So these values need to be
+ * reasonable.
+ */
+#define N_RPA_DESCR 8
+unsigned int rpanote[N_RPA_DESCR] = {
+ 0, /* lparaffinity */
+ 64, /* min_rmo_size */
+ 0, /* min_rmo_percent */
+ 40, /* max_pft_size */
+ 1, /* splpar */
+ -1, /* min_load */
+ 0, /* new_mem_def */
+ 1, /* ignore_my_client_config */
+};
+
+#define ROUNDUP(len) (((len) + 3) & ~3)
+
unsigned char buf[512];
#define GET_16BE(off) ((buf[off] << 8) + (buf[(off)+1]))
{
int fd, n, i;
int ph, ps, np;
- int nnote, ns;
+ int nnote, nnote2, ns;
if (ac != 2) {
fprintf(stderr, "Usage: %s elf-file\n", av[0]);
exit(1);
}
- nnote = strlen(arch) + 1 + (N_DESCR + 3) * 4;
+ nnote = 12 + ROUNDUP(strlen(arch) + 1) + sizeof(descr);
+ nnote2 = 12 + ROUNDUP(strlen(rpaname) + 1) + sizeof(rpanote);
n = read(fd, buf, sizeof(buf));
if (n < 0) {
np = GET_16BE(E_PHNUM);
if (ph < E_HSIZE || ps < PH_HSIZE || np < 1)
goto notelf;
- if (ph + (np + 1) * ps + nnote > n)
+ if (ph + (np + 2) * ps + nnote + nnote2 > n)
goto nospace;
for (i = 0; i < np; ++i) {
}
/* XXX check that the area we want to use is all zeroes */
- for (i = 0; i < ps + nnote; ++i)
+ for (i = 0; i < 2 * ps + nnote + nnote2; ++i)
if (buf[ph + i] != 0)
goto nospace;
/* fill in the program header entry */
- ns = ph + ps;
+ ns = ph + 2 * ps;
PUT_32BE(ph + PH_TYPE, PT_NOTE);
PUT_32BE(ph + PH_OFFSET, ns);
PUT_32BE(ph + PH_FILESZ, nnote);
PUT_32BE(ns + 8, 0x1275);
strcpy(&buf[ns + 12], arch);
ns += 12 + strlen(arch) + 1;
- for (i = 0; i < N_DESCR; ++i)
- PUT_32BE(ns + i * 4, descr[i]);
+ for (i = 0; i < N_DESCR; ++i, ns += 4)
+ PUT_32BE(ns, descr[i]);
+
+ /* fill in the second program header entry and the RPA note area */
+ ph += ps;
+ PUT_32BE(ph + PH_TYPE, PT_NOTE);
+ PUT_32BE(ph + PH_OFFSET, ns);
+ PUT_32BE(ph + PH_FILESZ, nnote2);
+
+ /* fill in the note area we point to */
+ PUT_32BE(ns, strlen(rpaname) + 1);
+ PUT_32BE(ns + 4, sizeof(rpanote));
+ PUT_32BE(ns + 8, 0x12759999);
+ strcpy(&buf[ns + 12], rpaname);
+ ns += 12 + ROUNDUP(strlen(rpaname) + 1);
+ for (i = 0; i < N_RPA_DESCR; ++i, ns += 4)
+ PUT_32BE(ns, rpanote[i]);
/* Update the number of program headers */
- PUT_16BE(E_PHNUM, np + 1);
+ PUT_16BE(E_PHNUM, np + 2);
/* write back */
lseek(fd, (long) 0, SEEK_SET);
exit(1);
}
-/*
+/*
* Local variables:
* c-file-style: "k&r"
* c-basic-offset: 5