From c24323dd5f04d2a8c89f1d0d8daf0322b6fa6fc7 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 14 Dec 2018 13:30:51 +0000 Subject: hw/i386/pc.c: Don't use load_image() The load_image() function is deprecated, as it does not let the caller specify how large the buffer to read the file into is. Use the glib g_file_get_contents() function instead, which does the whole "allocate memory for the file and read it in" operation. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Reviewed-by: Stefan Hajnoczi Reviewed-by: Michael S. Tsirkin Reviewed-by: Eric Blake Message-id: 20181130151712.2312-6-peter.maydell@linaro.org --- hw/i386/pc.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 4cd2fbca4d..115bc2825c 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -839,10 +839,9 @@ static void load_linux(PCMachineState *pcms, { uint16_t protocol; int setup_size, kernel_size, cmdline_size; - int64_t initrd_size = 0; int dtb_size, setup_data_offset; uint32_t initrd_max; - uint8_t header[8192], *setup, *kernel, *initrd_data; + uint8_t header[8192], *setup, *kernel; hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0; FILE *f; char *vmode; @@ -965,27 +964,30 @@ static void load_linux(PCMachineState *pcms, /* load initrd */ if (initrd_filename) { + gsize initrd_size; + gchar *initrd_data; + GError *gerr = NULL; + if (protocol < 0x200) { fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n"); exit(1); } - initrd_size = get_image_size(initrd_filename); - if (initrd_size < 0) { + if (!g_file_get_contents(initrd_filename, &initrd_data, + &initrd_size, &gerr)) { fprintf(stderr, "qemu: error reading initrd %s: %s\n", - initrd_filename, strerror(errno)); + initrd_filename, gerr->message); exit(1); - } else if (initrd_size >= initrd_max) { + } + if (initrd_size >= initrd_max) { fprintf(stderr, "qemu: initrd is too large, cannot support." - "(max: %"PRIu32", need %"PRId64")\n", initrd_max, initrd_size); + "(max: %"PRIu32", need %"PRId64")\n", + initrd_max, (uint64_t)initrd_size); exit(1); } initrd_addr = (initrd_max-initrd_size) & ~4095; - initrd_data = g_malloc(initrd_size); - load_image(initrd_filename, initrd_data); - fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr); fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size); -- cgit v1.2.3