Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/build changes from Ingo Molnar.
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, build: Fix portability issues when cross-building
x86, tools: Remove unneeded header files from tools/build.c
USB: ffs-test: Don't duplicate {get,put}_unaligned*() functions
x86, efi: Fix endian issues and unaligned accesses
x86, boot: Restrict CFLAGS for hostprogs
x86, mkpiggy: Don't open code put_unaligned_le32()
x86, relocs: Don't open code put_unaligned_le32()
tools/include: Add byteshift headers for endian access
This commit is contained in:
Linus Torvalds
Коммит
02c502566e
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@ -37,8 +37,9 @@ setup-y += video-bios.o
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targets += $(setup-y)
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hostprogs-y := mkcpustr tools/build
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HOST_EXTRACFLAGS += $(LINUXINCLUDE)
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HOSTCFLAGS_mkcpustr.o := -I$(srctree)/arch/$(SRCARCH)/include
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HOST_EXTRACFLAGS += -I$(objtree)/include -I$(srctree)/tools/include \
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-include $(srctree)/include/linux/kconfig.h
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$(obj)/cpu.o: $(obj)/cpustr.h
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quiet_cmd_cpustr = CPUSTR $@
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@ -22,6 +22,7 @@ LDFLAGS := -m elf_$(UTS_MACHINE)
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LDFLAGS_vmlinux := -T
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hostprogs-y := mkpiggy
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HOST_EXTRACFLAGS += -I$(srctree)/tools/include
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VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
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$(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
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@ -29,14 +29,7 @@
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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static uint32_t getle32(const void *p)
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{
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const uint8_t *cp = p;
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return (uint32_t)cp[0] + ((uint32_t)cp[1] << 8) +
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((uint32_t)cp[2] << 16) + ((uint32_t)cp[3] << 24);
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}
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#include <tools/le_byteshift.h>
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int main(int argc, char *argv[])
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{
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@ -69,7 +62,7 @@ int main(int argc, char *argv[])
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}
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ilen = ftell(f);
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olen = getle32(&olen);
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olen = get_unaligned_le32(&olen);
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fclose(f);
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/*
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@ -10,6 +10,7 @@
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#define USE_BSD
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#include <endian.h>
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#include <regex.h>
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#include <tools/le_byteshift.h>
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static void die(char *fmt, ...);
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@ -605,10 +606,7 @@ static void emit_relocs(int as_text)
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fwrite("\0\0\0\0", 4, 1, stdout);
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/* Now print each relocation */
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for (i = 0; i < reloc_count; i++) {
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buf[0] = (relocs[i] >> 0) & 0xff;
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buf[1] = (relocs[i] >> 8) & 0xff;
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buf[2] = (relocs[i] >> 16) & 0xff;
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buf[3] = (relocs[i] >> 24) & 0xff;
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put_unaligned_le32(relocs[i], buf);
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fwrite(buf, 4, 1, stdout);
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}
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}
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@ -29,18 +29,18 @@
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#include <stdarg.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/sysmacros.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <asm/boot.h>
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#include <tools/le_byteshift.h>
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typedef unsigned char u8;
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typedef unsigned short u16;
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typedef unsigned long u32;
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typedef unsigned int u32;
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#define DEFAULT_MAJOR_ROOT 0
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#define DEFAULT_MINOR_ROOT 0
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#define DEFAULT_ROOT_DEV (DEFAULT_MAJOR_ROOT << 8 | DEFAULT_MINOR_ROOT)
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/* Minimal number of setup sectors */
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#define SETUP_SECT_MIN 5
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@ -159,7 +159,7 @@ int main(int argc, char ** argv)
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die("read-error on `setup'");
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if (c < 1024)
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die("The setup must be at least 1024 bytes");
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if (buf[510] != 0x55 || buf[511] != 0xaa)
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if (get_unaligned_le16(&buf[510]) != 0xAA55)
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die("Boot block hasn't got boot flag (0xAA55)");
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fclose(file);
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@ -171,8 +171,7 @@ int main(int argc, char ** argv)
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memset(buf+c, 0, i-c);
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/* Set the default root device */
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buf[508] = DEFAULT_MINOR_ROOT;
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buf[509] = DEFAULT_MAJOR_ROOT;
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put_unaligned_le16(DEFAULT_ROOT_DEV, &buf[508]);
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fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i);
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@ -192,44 +191,42 @@ int main(int argc, char ** argv)
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/* Patch the setup code with the appropriate size parameters */
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buf[0x1f1] = setup_sectors-1;
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buf[0x1f4] = sys_size;
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buf[0x1f5] = sys_size >> 8;
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buf[0x1f6] = sys_size >> 16;
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buf[0x1f7] = sys_size >> 24;
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put_unaligned_le32(sys_size, &buf[0x1f4]);
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#ifdef CONFIG_EFI_STUB
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file_sz = sz + i + ((sys_size * 16) - sz);
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pe_header = *(unsigned int *)&buf[0x3c];
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pe_header = get_unaligned_le32(&buf[0x3c]);
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/* Size of code */
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*(unsigned int *)&buf[pe_header + 0x1c] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0x1c]);
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/* Size of image */
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*(unsigned int *)&buf[pe_header + 0x50] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0x50]);
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#ifdef CONFIG_X86_32
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/* Address of entry point */
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*(unsigned int *)&buf[pe_header + 0x28] = i;
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put_unaligned_le32(i, &buf[pe_header + 0x28]);
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/* .text size */
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*(unsigned int *)&buf[pe_header + 0xb0] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0xb0]);
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/* .text size of initialised data */
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*(unsigned int *)&buf[pe_header + 0xb8] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0xb8]);
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#else
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/*
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* Address of entry point. startup_32 is at the beginning and
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* the 64-bit entry point (startup_64) is always 512 bytes
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* after.
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*/
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*(unsigned int *)&buf[pe_header + 0x28] = i + 512;
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put_unaligned_le32(i + 512, &buf[pe_header + 0x28]);
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/* .text size */
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*(unsigned int *)&buf[pe_header + 0xc0] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0xc0]);
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/* .text size of initialised data */
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*(unsigned int *)&buf[pe_header + 0xc8] = file_sz;
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put_unaligned_le32(file_sz, &buf[pe_header + 0xc8]);
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#endif /* CONFIG_X86_32 */
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#endif /* CONFIG_EFI_STUB */
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@ -250,8 +247,9 @@ int main(int argc, char ** argv)
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}
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/* Write the CRC */
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fprintf(stderr, "CRC %lx\n", crc);
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if (fwrite(&crc, 1, 4, stdout) != 4)
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fprintf(stderr, "CRC %x\n", crc);
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put_unaligned_le32(crc, buf);
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if (fwrite(buf, 1, 4, stdout) != 4)
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die("Writing CRC failed");
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close(fd);
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@ -0,0 +1,70 @@
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#ifndef _TOOLS_BE_BYTESHIFT_H
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#define _TOOLS_BE_BYTESHIFT_H
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#include <linux/types.h>
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static inline __u16 __get_unaligned_be16(const __u8 *p)
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{
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return p[0] << 8 | p[1];
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}
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static inline __u32 __get_unaligned_be32(const __u8 *p)
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{
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return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
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}
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static inline __u64 __get_unaligned_be64(const __u8 *p)
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{
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return (__u64)__get_unaligned_be32(p) << 32 |
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__get_unaligned_be32(p + 4);
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}
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static inline void __put_unaligned_be16(__u16 val, __u8 *p)
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{
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*p++ = val >> 8;
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*p++ = val;
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}
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static inline void __put_unaligned_be32(__u32 val, __u8 *p)
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{
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__put_unaligned_be16(val >> 16, p);
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__put_unaligned_be16(val, p + 2);
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}
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static inline void __put_unaligned_be64(__u64 val, __u8 *p)
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{
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__put_unaligned_be32(val >> 32, p);
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__put_unaligned_be32(val, p + 4);
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}
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static inline __u16 get_unaligned_be16(const void *p)
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{
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return __get_unaligned_be16((const __u8 *)p);
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}
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static inline __u32 get_unaligned_be32(const void *p)
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{
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return __get_unaligned_be32((const __u8 *)p);
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}
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static inline __u64 get_unaligned_be64(const void *p)
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{
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return __get_unaligned_be64((const __u8 *)p);
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}
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static inline void put_unaligned_be16(__u16 val, void *p)
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{
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__put_unaligned_be16(val, p);
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}
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static inline void put_unaligned_be32(__u32 val, void *p)
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{
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__put_unaligned_be32(val, p);
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}
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static inline void put_unaligned_be64(__u64 val, void *p)
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{
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__put_unaligned_be64(val, p);
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}
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#endif /* _TOOLS_BE_BYTESHIFT_H */
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@ -0,0 +1,70 @@
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#ifndef _TOOLS_LE_BYTESHIFT_H
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#define _TOOLS_LE_BYTESHIFT_H
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#include <linux/types.h>
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static inline __u16 __get_unaligned_le16(const __u8 *p)
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{
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return p[0] | p[1] << 8;
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}
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static inline __u32 __get_unaligned_le32(const __u8 *p)
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{
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return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
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}
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static inline __u64 __get_unaligned_le64(const __u8 *p)
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{
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return (__u64)__get_unaligned_le32(p + 4) << 32 |
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__get_unaligned_le32(p);
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}
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static inline void __put_unaligned_le16(__u16 val, __u8 *p)
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{
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*p++ = val;
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*p++ = val >> 8;
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}
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static inline void __put_unaligned_le32(__u32 val, __u8 *p)
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{
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__put_unaligned_le16(val >> 16, p + 2);
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__put_unaligned_le16(val, p);
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}
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static inline void __put_unaligned_le64(__u64 val, __u8 *p)
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{
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__put_unaligned_le32(val >> 32, p + 4);
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__put_unaligned_le32(val, p);
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}
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static inline __u16 get_unaligned_le16(const void *p)
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{
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return __get_unaligned_le16((const __u8 *)p);
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}
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static inline __u32 get_unaligned_le32(const void *p)
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{
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return __get_unaligned_le32((const __u8 *)p);
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}
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static inline __u64 get_unaligned_le64(const void *p)
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{
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return __get_unaligned_le64((const __u8 *)p);
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}
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static inline void put_unaligned_le16(__u16 val, void *p)
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{
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__put_unaligned_le16(val, p);
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}
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static inline void put_unaligned_le32(__u32 val, void *p)
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{
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__put_unaligned_le32(val, p);
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}
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static inline void put_unaligned_le64(__u64 val, void *p)
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{
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__put_unaligned_le64(val, p);
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}
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#endif /* _TOOLS_LE_BYTESHIFT_H */
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@ -3,7 +3,7 @@
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CC = $(CROSS_COMPILE)gcc
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PTHREAD_LIBS = -lpthread
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WARNINGS = -Wall -Wextra
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CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS)
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CFLAGS = $(WARNINGS) -g $(PTHREAD_LIBS) -I../include
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all: testusb ffs-test
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%: %.c
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|
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@ -36,6 +36,7 @@
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <tools/le_byteshift.h>
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#include "../../include/linux/usb/functionfs.h"
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|
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@ -47,34 +48,6 @@
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#define le32_to_cpu(x) le32toh(x)
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#define le16_to_cpu(x) le16toh(x)
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|
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static inline __u16 get_unaligned_le16(const void *_ptr)
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{
|
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const __u8 *ptr = _ptr;
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return ptr[0] | (ptr[1] << 8);
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}
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static inline __u32 get_unaligned_le32(const void *_ptr)
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{
|
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const __u8 *ptr = _ptr;
|
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return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16) | (ptr[3] << 24);
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}
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|
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static inline void put_unaligned_le16(__u16 val, void *_ptr)
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{
|
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__u8 *ptr = _ptr;
|
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*ptr++ = val;
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*ptr++ = val >> 8;
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}
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|
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static inline void put_unaligned_le32(__u32 val, void *_ptr)
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{
|
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__u8 *ptr = _ptr;
|
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*ptr++ = val;
|
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*ptr++ = val >> 8;
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*ptr++ = val >> 16;
|
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*ptr++ = val >> 24;
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}
|
||||
|
||||
|
||||
/******************** Messages and Errors ***********************************/
|
||||
|
||||
|
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