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authorbenno <benno@FreeBSD.org>2018-04-24 18:10:04 +0000
committerbenno <benno@FreeBSD.org>2018-04-24 18:10:04 +0000
commit3278d157566d26b4c40c28b6e304d470128eb82e (patch)
treea6f6889dcce213f844315fe4fa4e46bded5278e5 /stand
parent53556a298d7b3b92108da4a8c0256196e49394c2 (diff)
downloadFreeBSD-src-3278d157566d26b4c40c28b6e304d470128eb82e.zip
FreeBSD-src-3278d157566d26b4c40c28b6e304d470128eb82e.tar.gz
MFC r332082
Use consistent whitespace. Sponsored by: iXsystems, Inc.
Diffstat (limited to 'stand')
-rw-r--r--stand/i386/gptboot/gptboot.c528
1 files changed, 271 insertions, 257 deletions
diff --git a/stand/i386/gptboot/gptboot.c b/stand/i386/gptboot/gptboot.c
index a9d54f4..07a5e71 100644
--- a/stand/i386/gptboot/gptboot.c
+++ b/stand/i386/gptboot/gptboot.c
@@ -132,87 +132,93 @@ xfsread(ufs_ino_t inode, void *buf, size_t nbyte)
static void
bios_getmem(void)
{
- uint64_t size;
+ uint64_t size;
+
+ /* Parse system memory map */
+ v86.ebx = 0;
+ do {
+ v86.ctl = V86_FLAGS;
+ v86.addr = MEM_EXT; /* int 0x15 function 0xe820*/
+ v86.eax = 0xe820;
+ v86.ecx = sizeof(struct bios_smap);
+ v86.edx = SMAP_SIG;
+ v86.es = VTOPSEG(&smap);
+ v86.edi = VTOPOFF(&smap);
+ v86int();
+ if ((v86.efl & 1) || (v86.eax != SMAP_SIG))
+ break;
+ /* look for a low-memory segment that's large enough */
+ if ((smap.type == SMAP_TYPE_MEMORY) && (smap.base == 0) &&
+ (smap.length >= (512 * 1024)))
+ bios_basemem = smap.length;
+ /* look for the first segment in 'extended' memory */
+ if ((smap.type == SMAP_TYPE_MEMORY) &&
+ (smap.base == 0x100000)) {
+ bios_extmem = smap.length;
+ }
- /* Parse system memory map */
- v86.ebx = 0;
- do {
- v86.ctl = V86_FLAGS;
- v86.addr = MEM_EXT; /* int 0x15 function 0xe820*/
- v86.eax = 0xe820;
- v86.ecx = sizeof(struct bios_smap);
- v86.edx = SMAP_SIG;
- v86.es = VTOPSEG(&smap);
- v86.edi = VTOPOFF(&smap);
- v86int();
- if ((v86.efl & 1) || (v86.eax != SMAP_SIG))
- break;
- /* look for a low-memory segment that's large enough */
- if ((smap.type == SMAP_TYPE_MEMORY) && (smap.base == 0) &&
- (smap.length >= (512 * 1024)))
- bios_basemem = smap.length;
- /* look for the first segment in 'extended' memory */
- if ((smap.type == SMAP_TYPE_MEMORY) && (smap.base == 0x100000)) {
- bios_extmem = smap.length;
+ /*
+ * Look for the largest segment in 'extended' memory beyond
+ * 1MB but below 4GB.
+ */
+ if ((smap.type == SMAP_TYPE_MEMORY) &&
+ (smap.base > 0x100000) && (smap.base < 0x100000000ull)) {
+ size = smap.length;
+
+ /*
+ * If this segment crosses the 4GB boundary,
+ * truncate it.
+ */
+ if (smap.base + size > 0x100000000ull)
+ size = 0x100000000ull - smap.base;
+
+ if (size > high_heap_size) {
+ high_heap_size = size;
+ high_heap_base = smap.base;
+ }
+ }
+ } while (v86.ebx != 0);
+
+ /* Fall back to the old compatibility function for base memory */
+ if (bios_basemem == 0) {
+ v86.ctl = 0;
+ v86.addr = 0x12; /* int 0x12 */
+ v86int();
+
+ bios_basemem = (v86.eax & 0xffff) * 1024;
}
/*
- * Look for the largest segment in 'extended' memory beyond
- * 1MB but below 4GB.
+ * Fall back through several compatibility functions for extended
+ * memory
*/
- if ((smap.type == SMAP_TYPE_MEMORY) && (smap.base > 0x100000) &&
- (smap.base < 0x100000000ull)) {
- size = smap.length;
-
- /*
- * If this segment crosses the 4GB boundary, truncate it.
- */
- if (smap.base + size > 0x100000000ull)
- size = 0x100000000ull - smap.base;
-
- if (size > high_heap_size) {
- high_heap_size = size;
- high_heap_base = smap.base;
- }
+ if (bios_extmem == 0) {
+ v86.ctl = V86_FLAGS;
+ v86.addr = 0x15; /* int 0x15 function 0xe801*/
+ v86.eax = 0xe801;
+ v86int();
+ if (!(v86.efl & 1)) {
+ bios_extmem = ((v86.ecx & 0xffff) +
+ ((v86.edx & 0xffff) * 64)) * 1024;
+ }
+ }
+ if (bios_extmem == 0) {
+ v86.ctl = 0;
+ v86.addr = 0x15; /* int 0x15 function 0x88*/
+ v86.eax = 0x8800;
+ v86int();
+ bios_extmem = (v86.eax & 0xffff) * 1024;
}
- } while (v86.ebx != 0);
-
- /* Fall back to the old compatibility function for base memory */
- if (bios_basemem == 0) {
- v86.ctl = 0;
- v86.addr = 0x12; /* int 0x12 */
- v86int();
-
- bios_basemem = (v86.eax & 0xffff) * 1024;
- }
- /* Fall back through several compatibility functions for extended memory */
- if (bios_extmem == 0) {
- v86.ctl = V86_FLAGS;
- v86.addr = 0x15; /* int 0x15 function 0xe801*/
- v86.eax = 0xe801;
- v86int();
- if (!(v86.efl & 1)) {
- bios_extmem = ((v86.ecx & 0xffff) + ((v86.edx & 0xffff) * 64)) * 1024;
+ /*
+ * If we have extended memory and did not find a suitable heap
+ * region in the SMAP, use the last 3MB of 'extended' memory as a
+ * high heap candidate.
+ */
+ if (bios_extmem >= HEAP_MIN && high_heap_size < HEAP_MIN) {
+ high_heap_size = HEAP_MIN;
+ high_heap_base = bios_extmem + 0x100000 - HEAP_MIN;
}
- }
- if (bios_extmem == 0) {
- v86.ctl = 0;
- v86.addr = 0x15; /* int 0x15 function 0x88*/
- v86.eax = 0x8800;
- v86int();
- bios_extmem = (v86.eax & 0xffff) * 1024;
- }
-
- /*
- * If we have extended memory and did not find a suitable heap
- * region in the SMAP, use the last 3MB of 'extended' memory as a
- * high heap candidate.
- */
- if (bios_extmem >= HEAP_MIN && high_heap_size < HEAP_MIN) {
- high_heap_size = HEAP_MIN;
- high_heap_base = bios_extmem + 0x100000 - HEAP_MIN;
- }
}
static int
@@ -371,207 +377,215 @@ exit(int x)
static void
load(void)
{
- union {
- struct exec ex;
- Elf32_Ehdr eh;
- } hdr;
- static Elf32_Phdr ep[2];
- static Elf32_Shdr es[2];
- caddr_t p;
- ufs_ino_t ino;
- uint32_t addr, x;
- int fmt, i, j;
-
- if (!(ino = lookup(kname))) {
- if (!ls) {
- printf("%s: No %s on %u:%s(%up%u)\n", BOOTPROG,
- kname, dsk.drive & DRV_MASK, dev_nm[dsk.type], dsk.unit,
- dsk.part);
- }
- return;
- }
- if (xfsread(ino, &hdr, sizeof(hdr)))
- return;
- if (N_GETMAGIC(hdr.ex) == ZMAGIC)
- fmt = 0;
- else if (IS_ELF(hdr.eh))
- fmt = 1;
- else {
- printf("Invalid %s\n", "format");
- return;
- }
- if (fmt == 0) {
- addr = hdr.ex.a_entry & 0xffffff;
- p = PTOV(addr);
- fs_off = PAGE_SIZE;
- if (xfsread(ino, p, hdr.ex.a_text))
- return;
- p += roundup2(hdr.ex.a_text, PAGE_SIZE);
- if (xfsread(ino, p, hdr.ex.a_data))
- return;
- p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE);
- bootinfo.bi_symtab = VTOP(p);
- memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms));
- p += sizeof(hdr.ex.a_syms);
- if (hdr.ex.a_syms) {
- if (xfsread(ino, p, hdr.ex.a_syms))
- return;
- p += hdr.ex.a_syms;
- if (xfsread(ino, p, sizeof(int)))
- return;
- x = *(uint32_t *)p;
- p += sizeof(int);
- x -= sizeof(int);
- if (xfsread(ino, p, x))
+ union {
+ struct exec ex;
+ Elf32_Ehdr eh;
+ } hdr;
+ static Elf32_Phdr ep[2];
+ static Elf32_Shdr es[2];
+ caddr_t p;
+ ufs_ino_t ino;
+ uint32_t addr, x;
+ int fmt, i, j;
+
+ if (!(ino = lookup(kname))) {
+ if (!ls) {
+ printf("%s: No %s on %u:%s(%up%u)\n", BOOTPROG,
+ kname, dsk.drive & DRV_MASK, dev_nm[dsk.type],
+ dsk.unit,
+ dsk.part);
+ }
return;
- p += x;
}
- } else {
- fs_off = hdr.eh.e_phoff;
- for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
- if (xfsread(ino, ep + j, sizeof(ep[0])))
+ if (xfsread(ino, &hdr, sizeof(hdr)))
return;
- if (ep[j].p_type == PT_LOAD)
- j++;
- }
- for (i = 0; i < 2; i++) {
- p = PTOV(ep[i].p_paddr & 0xffffff);
- fs_off = ep[i].p_offset;
- if (xfsread(ino, p, ep[i].p_filesz))
+ if (N_GETMAGIC(hdr.ex) == ZMAGIC)
+ fmt = 0;
+ else if (IS_ELF(hdr.eh))
+ fmt = 1;
+ else {
+ printf("Invalid %s\n", "format");
return;
}
- p += roundup2(ep[1].p_memsz, PAGE_SIZE);
- bootinfo.bi_symtab = VTOP(p);
- if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) {
- fs_off = hdr.eh.e_shoff + sizeof(es[0]) *
- (hdr.eh.e_shstrndx + 1);
- if (xfsread(ino, &es, sizeof(es)))
- return;
- for (i = 0; i < 2; i++) {
- memcpy(p, &es[i].sh_size, sizeof(es[i].sh_size));
- p += sizeof(es[i].sh_size);
- fs_off = es[i].sh_offset;
- if (xfsread(ino, p, es[i].sh_size))
- return;
- p += es[i].sh_size;
- }
+ if (fmt == 0) {
+ addr = hdr.ex.a_entry & 0xffffff;
+ p = PTOV(addr);
+ fs_off = PAGE_SIZE;
+ if (xfsread(ino, p, hdr.ex.a_text))
+ return;
+ p += roundup2(hdr.ex.a_text, PAGE_SIZE);
+ if (xfsread(ino, p, hdr.ex.a_data))
+ return;
+ p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE);
+ bootinfo.bi_symtab = VTOP(p);
+ memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms));
+ p += sizeof(hdr.ex.a_syms);
+ if (hdr.ex.a_syms) {
+ if (xfsread(ino, p, hdr.ex.a_syms))
+ return;
+ p += hdr.ex.a_syms;
+ if (xfsread(ino, p, sizeof(int)))
+ return;
+ x = *(uint32_t *)p;
+ p += sizeof(int);
+ x -= sizeof(int);
+ if (xfsread(ino, p, x))
+ return;
+ p += x;
+ }
+ } else {
+ fs_off = hdr.eh.e_phoff;
+ for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
+ if (xfsread(ino, ep + j, sizeof(ep[0])))
+ return;
+ if (ep[j].p_type == PT_LOAD)
+ j++;
+ }
+ for (i = 0; i < 2; i++) {
+ p = PTOV(ep[i].p_paddr & 0xffffff);
+ fs_off = ep[i].p_offset;
+ if (xfsread(ino, p, ep[i].p_filesz))
+ return;
+ }
+ p += roundup2(ep[1].p_memsz, PAGE_SIZE);
+ bootinfo.bi_symtab = VTOP(p);
+ if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) {
+ fs_off = hdr.eh.e_shoff + sizeof(es[0]) *
+ (hdr.eh.e_shstrndx + 1);
+ if (xfsread(ino, &es, sizeof(es)))
+ return;
+ for (i = 0; i < 2; i++) {
+ memcpy(p, &es[i].sh_size,
+ sizeof(es[i].sh_size));
+ p += sizeof(es[i].sh_size);
+ fs_off = es[i].sh_offset;
+ if (xfsread(ino, p, es[i].sh_size))
+ return;
+ p += es[i].sh_size;
+ }
+ }
+ addr = hdr.eh.e_entry & 0xffffff;
}
- addr = hdr.eh.e_entry & 0xffffff;
- }
- bootinfo.bi_esymtab = VTOP(p);
- bootinfo.bi_kernelname = VTOP(kname);
- bootinfo.bi_bios_dev = dsk.drive;
+ bootinfo.bi_esymtab = VTOP(p);
+ bootinfo.bi_kernelname = VTOP(kname);
+ bootinfo.bi_bios_dev = dsk.drive;
#ifdef LOADER_GELI_SUPPORT
- geliargs.size = sizeof(geliargs);
- explicit_bzero(gelipw, sizeof(gelipw));
- gelibuf = malloc(sizeof(struct keybuf) + (GELI_MAX_KEYS * sizeof(struct keybuf_ent)));
- geli_fill_keybuf(gelibuf);
- geliargs.notapw = '\0';
- geliargs.keybuf_sentinel = KEYBUF_SENTINEL;
- geliargs.keybuf = gelibuf;
+ geliargs.size = sizeof(geliargs);
+ explicit_bzero(gelipw, sizeof(gelipw));
+ gelibuf = malloc(sizeof(struct keybuf) +
+ (GELI_MAX_KEYS * sizeof(struct keybuf_ent)));
+ geli_fill_keybuf(gelibuf);
+ geliargs.notapw = '\0';
+ geliargs.keybuf_sentinel = KEYBUF_SENTINEL;
+ geliargs.keybuf = gelibuf;
#endif
- __exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK),
- MAKEBOOTDEV(dev_maj[dsk.type], dsk.part + 1, dsk.unit, 0xff),
- KARGS_FLAGS_EXTARG, 0, 0, VTOP(&bootinfo)
+ __exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK),
+ MAKEBOOTDEV(dev_maj[dsk.type], dsk.part + 1, dsk.unit, 0xff),
+ KARGS_FLAGS_EXTARG, 0, 0, VTOP(&bootinfo)
#ifdef LOADER_GELI_SUPPORT
- , geliargs
+ , geliargs
#endif
- );
+ );
}
static int
parse_cmds(char *cmdstr, int *dskupdated)
{
- char *arg = cmdstr;
- char *ep, *p, *q;
- const char *cp;
- unsigned int drv;
- int c, i, j;
-
- *dskupdated = 0;
- while ((c = *arg++)) {
- if (c == ' ' || c == '\t' || c == '\n')
- continue;
- for (p = arg; *p && *p != '\n' && *p != ' ' && *p != '\t'; p++);
- ep = p;
- if (*p)
- *p++ = 0;
- if (c == '-') {
- while ((c = *arg++)) {
- if (c == 'P') {
- if (*(uint8_t *)PTOV(0x496) & 0x10) {
- cp = "yes";
- } else {
- opts |= OPT_SET(RBX_DUAL) | OPT_SET(RBX_SERIAL);
- cp = "no";
- }
- printf("Keyboard: %s\n", cp);
- continue;
- } else if (c == 'S') {
- j = 0;
- while ((unsigned int)(i = *arg++ - '0') <= 9)
- j = j * 10 + i;
- if (j > 0 && i == -'0') {
- comspeed = j;
- break;
- }
- /* Fall through to error below ('S' not in optstr[]). */
- }
- for (i = 0; c != optstr[i]; i++)
- if (i == NOPT - 1)
- return -1;
- opts ^= OPT_SET(flags[i]);
- }
- ioctrl = OPT_CHECK(RBX_DUAL) ? (IO_SERIAL|IO_KEYBOARD) :
- OPT_CHECK(RBX_SERIAL) ? IO_SERIAL : IO_KEYBOARD;
- if (ioctrl & IO_SERIAL) {
- if (sio_init(115200 / comspeed) != 0)
- ioctrl &= ~IO_SERIAL;
- }
- } else {
- for (q = arg--; *q && *q != '('; q++);
- if (*q) {
- drv = -1;
- if (arg[1] == ':') {
- drv = *arg - '0';
- if (drv > 9)
- return (-1);
- arg += 2;
+ char *arg = cmdstr;
+ char *ep, *p, *q;
+ const char *cp;
+ unsigned int drv;
+ int c, i, j;
+
+ *dskupdated = 0;
+ while ((c = *arg++)) {
+ if (c == ' ' || c == '\t' || c == '\n')
+ continue;
+ for (p = arg; *p && *p != '\n' && *p != ' ' && *p != '\t'; p++);
+ ep = p;
+ if (*p)
+ *p++ = 0;
+ if (c == '-') {
+ while ((c = *arg++)) {
+ if (c == 'P') {
+ if (*(uint8_t *)PTOV(0x496) & 0x10) {
+ cp = "yes";
+ } else {
+ opts |= OPT_SET(RBX_DUAL) |
+ OPT_SET(RBX_SERIAL);
+ cp = "no";
+ }
+ printf("Keyboard: %s\n", cp);
+ continue;
+ } else if (c == 'S') {
+ j = 0;
+ while ((unsigned int)(i = *arg++ - '0')
+ <= 9)
+ j = j * 10 + i;
+ if (j > 0 && i == -'0') {
+ comspeed = j;
+ break;
+ }
+ /*
+ * Fall through to error below
+ * ('S' not in optstr[]).
+ */
+ }
+ for (i = 0; c != optstr[i]; i++)
+ if (i == NOPT - 1)
+ return -1;
+ opts ^= OPT_SET(flags[i]);
+ }
+ ioctrl = OPT_CHECK(RBX_DUAL) ? (IO_SERIAL|IO_KEYBOARD) :
+ OPT_CHECK(RBX_SERIAL) ? IO_SERIAL : IO_KEYBOARD;
+ if (ioctrl & IO_SERIAL) {
+ if (sio_init(115200 / comspeed) != 0)
+ ioctrl &= ~IO_SERIAL;
+ }
+ } else {
+ for (q = arg--; *q && *q != '('; q++);
+ if (*q) {
+ drv = -1;
+ if (arg[1] == ':') {
+ drv = *arg - '0';
+ if (drv > 9)
+ return (-1);
+ arg += 2;
+ }
+ if (q - arg != 2)
+ return -1;
+ for (i = 0; arg[0] != dev_nm[i][0] ||
+ arg[1] != dev_nm[i][1]; i++)
+ if (i == NDEV - 1)
+ return -1;
+ dsk.type = i;
+ arg += 3;
+ dsk.unit = *arg - '0';
+ if (arg[1] != 'p' || dsk.unit > 9)
+ return -1;
+ arg += 2;
+ dsk.part = *arg - '0';
+ if (dsk.part < 1 || dsk.part > 9)
+ return -1;
+ arg++;
+ if (arg[0] != ')')
+ return -1;
+ arg++;
+ if (drv == -1)
+ drv = dsk.unit;
+ dsk.drive = (dsk.type <= TYPE_MAXHARD
+ ? DRV_HARD : 0) + drv;
+ *dskupdated = 1;
+ }
+ if ((i = ep - arg)) {
+ if ((size_t)i >= sizeof(kname))
+ return -1;
+ memcpy(kname, arg, i + 1);
+ }
}
- if (q - arg != 2)
- return -1;
- for (i = 0; arg[0] != dev_nm[i][0] ||
- arg[1] != dev_nm[i][1]; i++)
- if (i == NDEV - 1)
- return -1;
- dsk.type = i;
- arg += 3;
- dsk.unit = *arg - '0';
- if (arg[1] != 'p' || dsk.unit > 9)
- return -1;
- arg += 2;
- dsk.part = *arg - '0';
- if (dsk.part < 1 || dsk.part > 9)
- return -1;
- arg++;
- if (arg[0] != ')')
- return -1;
- arg++;
- if (drv == -1)
- drv = dsk.unit;
- dsk.drive = (dsk.type <= TYPE_MAXHARD
- ? DRV_HARD : 0) + drv;
- *dskupdated = 1;
- }
- if ((i = ep - arg)) {
- if ((size_t)i >= sizeof(kname))
- return -1;
- memcpy(kname, arg, i + 1);
- }
+ arg = p;
}
- arg = p;
- }
- return 0;
+ return 0;
}
static int
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