summaryrefslogtreecommitdiff
path: root/sys/arch/sgi/stand/boot/boot.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/arch/sgi/stand/boot/boot.c')
-rw-r--r--sys/arch/sgi/stand/boot/boot.c215
1 files changed, 154 insertions, 61 deletions
diff --git a/sys/arch/sgi/stand/boot/boot.c b/sys/arch/sgi/stand/boot/boot.c
index b5db5c1ad6f..43987048049 100644
--- a/sys/arch/sgi/stand/boot/boot.c
+++ b/sys/arch/sgi/stand/boot/boot.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: boot.c,v 1.1 2004/08/23 14:22:40 pefo Exp $ */
+/* $OpenBSD: boot.c,v 1.2 2004/09/09 22:11:39 pefo Exp $ */
/*
* Copyright (c) 2004 Opsycon AB, www.opsycon.se.
@@ -38,12 +38,17 @@
void gets(char *);
ssize_t read(int, void *, size_t);
int close(int);
-void pmon_write(int, char *, int);
-void pmon_synccache(void);
-int main(int, char **, char **);
-int loadfile(char *);
-int loadsymtab(int fd, Elf32_Ehdr *eh, int flags);
+int main(int, char **);
+void dobootopts(int, char **);
+Elf32_Addr loadfile(char *);
+Elf32_Addr loadfile32(int, Elf32_Ehdr *);
+Elf32_Addr loadfile64(int, Elf64_Ehdr *);
+int loadsymtab(int, Elf32_Ehdr *, int);
+
+enum { AUTO_NONE, AUTO_YES, AUTO_NO, AUTO_DEBUG } bootauto = AUTO_NONE;
+char *OSLoadPartition = NULL;
+char *OSLoadFilename = NULL;
unsigned long tablebase;
@@ -72,96 +77,187 @@ gettable (int size, char *name, int flags)
/*
*/
int
-main(argc, argv, envp)
+main(argc, argv)
int argc;
char **argv;
- char **envp;
{
- char *cp;
- int i, ask, entry;
char line[1024];
+ char *cp;
+ int i;
+ Elf32_Addr entry;
- ask = 0;
-
- cp = Bios_GetEnvironmentVariable("OSLoadPartition");
- if (cp != NULL) {
- strncpy(line, cp, sizeof(line));
+ dobootopts(argc, argv);
+ if (OSLoadPartition != NULL) {
+ strlcpy(line, OSLoadPartition, sizeof(line));
i = strlen(line);
- cp = Bios_GetEnvironmentVariable("OSLoadFilename");
- if (cp != NULL)
- strncpy(&line[i], cp, sizeof(line) - i -1);
- else
- ask = 1;
+ if (OSLoadFilename != NULL)
+ strlcpy(&line[i], OSLoadFilename, sizeof(line) - i -1);
} else
- ask = 1;
+ strlcpy("invalid argument setup", line, sizeof(line));
printf("\nOpenBSD/sgi Arcbios boot\n");
for (entry = 0; entry < argc; entry++)
printf("arg %d: %s\n", entry, argv[entry]);
- while (1) {
- do {
- printf("Boot: ");
- if (ask) {
- gets(line);
- }
- else
- printf("%s\n", line);
- } while(ask && line[0] == '\0');
+ printf("Boot: %s\n", line);
+
+ entry = loadfile(line);
+ if (entry != NULL) {
+ printf("start at 0x%x\n", entry);
+ ((void (*)())entry)(argc, argv);
+ }
+ printf("Boot FAILED!\n ");
+ Bios_Restart();
+}
- entry = loadfile(line);
- if (entry != -1) {
- ((void (*)())entry)(argc, argv);
+/*
+ * Decode boot options.
+ */
+void
+dobootopts(int argc, char **argv)
+{
+ char *cp;
+ int i;
+
+ /* XXX Should this be done differently, eg env vs. args? */
+ for (i = 1; i < argc; i++) {
+ cp = argv[i];
+ if (cp == NULL)
+ continue;
+
+ if (strncmp(cp, "OSLoadOptions=", 14) == 0) {
+ if (strcmp(&cp[14], "auto") == 0)
+ bootauto = AUTO_YES;
+ else if (strcmp(&cp[14], "single") == 0)
+ bootauto = AUTO_NO;
+ else if (strcmp(&cp[14], "debug") == 0)
+ bootauto = AUTO_DEBUG;
}
- ask = 1;
+ else if (strncmp(cp, "OSLoadPartition=", 16) == 0)
+ OSLoadPartition = &cp[16];
+ else if (strncmp(cp, "OSLoadFilename=", 15) == 0)
+ OSLoadFilename = &cp[15];
}
- return(0);
+ /* If "OSLoadOptions=" is missing, see if any arg was given */
+ if (bootauto == AUTO_NONE && *argv[1] == '/')
+ OSLoadFilename = argv[1];
}
/*
* Open 'filename', read in program and return the entry point or -1 if error.
*/
-int
+Elf32_Addr
loadfile(fname)
register char *fname;
{
+ union {
+ Elf32_Ehdr eh32;
+ Elf64_Ehdr eh64;
+ } eh;
int fd, i;
- Elf32_Ehdr eh;
- Elf32_Phdr *ph;
+ Elf32_Addr entry;
char *errs = 0;
- char buf[4096];
if ((fd = oopen(fname, 0)) < 0) {
- errs="open err: %s\n";
- goto err;
+ printf("can't open file %s\n", fname);
+ return NULL;
+ }
+
+ /* read the ELF header and check that it IS an ELF header */
+ if (oread(fd, (char *)&eh, sizeof(eh)) != sizeof(eh)) {
+ printf("error: ELF header read error\n");
+ return NULL;
+ }
+ if (!IS_ELF(eh.eh32)) {
+ printf("not an elf file\n");
+ return NULL;
}
- /* read the elf header */
- if(oread(fd, (char *)&eh, sizeof(eh)) != sizeof(eh)) {
- goto serr;
+ /* Determine CLASS */
+ if (eh.eh32.e_ident[EI_CLASS] == ELFCLASS32)
+ entry = loadfile32(fd, (void *)&eh);
+ else if (eh.eh32.e_ident[EI_CLASS] == ELFCLASS64)
+ entry = loadfile64(fd, (void *)&eh);
+ else {
+ printf("unknown ELF class\n");
+ return NULL;
}
+ return entry;
+}
+
+Elf32_Addr
+loadfile32(int fd, Elf32_Ehdr *eh)
+{
+ char buf[4096];
+ Elf32_Phdr *ph;
+ int i;
ph = (Elf32_Phdr *) buf;
- olseek(fd, eh.e_phoff, 0);
- if(oread(fd, (char *)ph, 4096) != 4096) {
- goto serr;
+ olseek(fd, eh->e_phoff, 0);
+ if (oread(fd, (char *)ph, 4096) != 4096) {
+ printf("unexpected EOF\n");
+ return NULL;
}
tablebase = 0;
+ printf("Loading ELF32 file\n");
- for(i = 0; i < eh.e_phnum; i++, ph++) {
- if(ph->p_type == PT_LOAD) {
+ for (i = 0; i < eh->e_phnum; i++, ph++) {
+ if (ph->p_type == PT_LOAD) {
+ olseek(fd, ph->p_offset, 0);
+ printf("0x%x:0x%x, ",(long)ph->p_paddr, (long)ph->p_filesz);
+ if (oread(fd, (char *)ph->p_paddr, ph->p_filesz) != ph->p_filesz) {
+ printf("unexpected EOF\n");
+ return NULL;
+ }
+ if(ph->p_memsz > ph->p_filesz) {
+ printf("Zero 0x%x:0x%x, ",
+ (long)(ph->p_paddr + ph->p_filesz),
+ (long)(ph->p_memsz - ph->p_filesz));
+ bzero((void *)(ph->p_paddr + ph->p_filesz),
+ ph->p_memsz - ph->p_filesz);
+ }
+ if((ph->p_paddr + ph->p_memsz) > tablebase) {
+ tablebase = ph->p_paddr + ph->p_memsz;
+ }
+ }
+ }
+ memset((void *)tablebase, 0, 4096);
+ loadsymtab(fd, eh, 0);
+ return(eh->e_entry);
+}
+
+Elf32_Addr
+loadfile64(int fd, Elf64_Ehdr *eh)
+{
+ char buf[4096];
+ Elf64_Phdr *ph;
+ int i;
+
+ ph = (Elf64_Phdr *) buf;
+ olseek(fd, eh->e_phoff, 0);
+ if (oread(fd, (char *)ph, 4096) != 4096) {
+ printf("unexpected EOF\n");
+ return NULL;
+ }
+
+ tablebase = 0;
+ printf("Loading ELF64 file\n");
+
+ for (i = 0; i < eh->e_phnum; i++, ph++) {
+ if (ph->p_type == PT_LOAD) {
olseek(fd, ph->p_offset, 0);
printf("0x%x:0x%x, ",ph->p_paddr, ph->p_filesz);
- if(oread(fd, (char *)ph->p_paddr, ph->p_filesz) != ph->p_filesz) {
- goto serr;
+ if (oread(fd, (char *)(long)ph->p_paddr, ph->p_filesz) != ph->p_filesz) {
+ printf("unexpected EOF\n");
+ return NULL;
}
if(ph->p_memsz > ph->p_filesz) {
printf("Zero 0x%x:0x%x, ",
ph->p_paddr + ph->p_filesz,
ph->p_memsz - ph->p_filesz);
- bzero((void *)(ph->p_paddr + ph->p_filesz),
+ bzero((void *)(long)(ph->p_paddr + ph->p_filesz),
ph->p_memsz - ph->p_filesz);
}
if((ph->p_paddr + ph->p_memsz) > tablebase) {
@@ -169,16 +265,13 @@ loadfile(fname)
}
}
}
- printf("start at 0x%x\n", eh.e_entry);
- memset(tablebase, 0, 4096);
- loadsymtab(fd, &eh, 0);
- return(eh.e_entry);
-serr:
- errs = "%s sz err\n";
-err:
- printf(errs, fname);
- return (-1);
+ memset((void *)tablebase, 0, 4096);
+// loadsymtab(fd, &eh, 0);
+ return(eh->e_entry);
}
+
+
+
int
loadsymtab(int fd, Elf32_Ehdr *eh, int flags)
{
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-08 23:34:25 +0000