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added entry parameter to ELF loader

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1859 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-04-26 22:05:26 +00:00
parent 94ac515889
commit 9ee3c02942
5 changed files with 19 additions and 11 deletions
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13
elf_ops.h
View File

@ -138,13 +138,14 @@ static int glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd, int must_swab)
return -1;
}
int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend, int must_swab)
int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend,
int must_swab, uint64_t *pentry)
{
struct elfhdr ehdr;
struct elf_phdr *phdr = NULL, *ph;
int size, i, total_size;
elf_word mem_size, addr;
uint8_t *data;
uint8_t *data = NULL;
if (read(fd, &ehdr, sizeof(ehdr)) != sizeof(ehdr))
goto fail;
@ -152,6 +153,9 @@ int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend, int must_swab)
glue(bswap_ehdr, SZ)(&ehdr);
}
if (pentry)
*pentry = (uint64_t)ehdr.e_entry;
glue(load_symbols, SZ)(&ehdr, fd, must_swab);
size = ehdr.e_phnum * sizeof(phdr[0]);
@ -176,7 +180,8 @@ int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend, int must_swab)
/* XXX: avoid allocating */
data = qemu_mallocz(mem_size);
if (ph->p_filesz > 0) {
lseek(fd, ph->p_offset, SEEK_SET);
if (lseek(fd, ph->p_offset, SEEK_SET) < 0)
goto fail;
if (read(fd, data, ph->p_filesz) != ph->p_filesz)
goto fail;
}
@ -187,10 +192,12 @@ int glue(load_elf, SZ)(int fd, int64_t virt_to_phys_addend, int must_swab)
total_size += mem_size;
qemu_free(data);
data = NULL;
}
}
return total_size;
fail:
qemu_free(data);
qemu_free(phdr);
return -1;
}

4
hw/sun4m.c
View File

@ -269,7 +269,7 @@ static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
prom_offset | IO_MEM_ROM);
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
ret = load_elf(buf, 0);
ret = load_elf(buf, 0, NULL);
if (ret < 0) {
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
ret = load_image(buf, phys_ram_base + prom_offset);
@ -282,7 +282,7 @@ static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
kernel_size = 0;
if (linux_boot) {
kernel_size = load_elf(kernel_filename, -0xf0000000);
kernel_size = load_elf(kernel_filename, -0xf0000000, NULL);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
if (kernel_size < 0)

4
hw/sun4u.c
View File

@ -283,7 +283,7 @@ static void sun4u_init(int ram_size, int vga_ram_size, int boot_device,
prom_offset | IO_MEM_ROM);
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
ret = load_elf(buf, 0);
ret = load_elf(buf, 0, NULL);
if (ret < 0) {
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
ret = load_image(buf, phys_ram_base + prom_offset);
@ -298,7 +298,7 @@ static void sun4u_init(int ram_size, int vga_ram_size, int boot_device,
initrd_size = 0;
if (linux_boot) {
/* XXX: put correct offset */
kernel_size = load_elf(kernel_filename, 0);
kernel_size = load_elf(kernel_filename, 0, NULL);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
if (kernel_size < 0)

7
loader.c
View File

@ -194,7 +194,8 @@ static void *load_at(int fd, int offset, int size)
#include "elf_ops.h"
/* return < 0 if error, otherwise the number of bytes loaded in memory */
int load_elf(const char *filename, int64_t virt_to_phys_addend)
int load_elf(const char *filename, int64_t virt_to_phys_addend,
uint64_t *pentry)
{
int fd, data_order, must_swab, ret;
uint8_t e_ident[EI_NIDENT];
@ -220,9 +221,9 @@ int load_elf(const char *filename, int64_t virt_to_phys_addend)
lseek(fd, 0, SEEK_SET);
if (e_ident[EI_CLASS] == ELFCLASS64) {
ret = load_elf64(fd, virt_to_phys_addend, must_swab);
ret = load_elf64(fd, virt_to_phys_addend, must_swab, pentry);
} else {
ret = load_elf32(fd, virt_to_phys_addend, must_swab);
ret = load_elf32(fd, virt_to_phys_addend, must_swab, pentry);
}
close(fd);

2
vl.h
View File

@ -878,7 +878,7 @@ void slavio_pic_set_irq_cpu(void *opaque, int irq, int level, unsigned int cpu);
/* loader.c */
int get_image_size(const char *filename);
int load_image(const char *filename, uint8_t *addr);
int load_elf(const char *filename, int64_t virt_to_phys_addend);
int load_elf(const char *filename, int64_t virt_to_phys_addend, uint64_t *pentry);
int load_aout(const char *filename, uint8_t *addr);
/* slavio_timer.c */