From: Jack Schwartz <jack.schwartz@oracle.com>
To: qemu-devel@nongnu.org
Cc: mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net,
ehabkost@redhat.com, daniel.kiper@oracle.com,
konrad.wilk@oracle.com
Subject: [Qemu-devel] [PATCH QEMU v1 4/4] multiboot: fprintf(stderr...) -> error_report()
Date: Thu, 21 Dec 2017 09:25:18 -0800 [thread overview]
Message-ID: <1513877118-3149-5-git-send-email-jack.schwartz@oracle.com> (raw)
In-Reply-To: <1513877118-3149-1-git-send-email-jack.schwartz@oracle.com>
Change all fprintf(stderr...) calls in hw/i386/multiboot.c to call
error_report() instead, including the mb_debug macro. Remove the "\n"
from strings passed to all modified calls, since error_report() appends
one.
Signed-off-by: Jack Schwartz <jack.schwartz@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
hw/i386/multiboot.c | 55 ++++++++++++++++++++++++++++-------------------------
1 file changed, 29 insertions(+), 26 deletions(-)
diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c
index 818728b..d9a0a95 100644
--- a/hw/i386/multiboot.c
+++ b/hw/i386/multiboot.c
@@ -31,12 +31,13 @@
#include "hw/loader.h"
#include "elf.h"
#include "sysemu/sysemu.h"
+#include "qemu/error-report.h"
/* Show multiboot debug output */
//#define DEBUG_MULTIBOOT
#ifdef DEBUG_MULTIBOOT
-#define mb_debug(a...) fprintf(stderr, ## a)
+#define mb_debug(a...) error_report(a)
#else
#define mb_debug(a...)
#endif
@@ -137,7 +138,7 @@ static void mb_add_mod(MultibootState *s,
stl_p(p + MB_MOD_END, end);
stl_p(p + MB_MOD_CMDLINE, cmdline_phys);
- mb_debug("mod%02d: "TARGET_FMT_plx" - "TARGET_FMT_plx"\n",
+ mb_debug("mod%02d: "TARGET_FMT_plx" - "TARGET_FMT_plx,
s->mb_mods_count, start, end);
s->mb_mods_count++;
@@ -179,12 +180,12 @@ int load_multiboot(FWCfgState *fw_cfg,
if (!is_multiboot)
return 0; /* no multiboot */
- mb_debug("qemu: I believe we found a multiboot image!\n");
+ mb_debug("qemu: I believe we found a multiboot image!");
memset(bootinfo, 0, sizeof(bootinfo));
memset(&mbs, 0, sizeof(mbs));
if (flags & 0x00000004) { /* MULTIBOOT_HEADER_HAS_VBE */
- fprintf(stderr, "qemu: multiboot knows VBE. we don't.\n");
+ error_report("qemu: multiboot knows VBE. we don't.");
}
if (!(flags & 0x00010000)) { /* MULTIBOOT_HEADER_HAS_ADDR */
uint64_t elf_entry;
@@ -193,7 +194,7 @@ int load_multiboot(FWCfgState *fw_cfg,
fclose(f);
if (((struct elf64_hdr*)header)->e_machine == EM_X86_64) {
- fprintf(stderr, "Cannot load x86-64 image, give a 32bit one.\n");
+ error_report("Cannot load x86-64 image, give a 32bit one.");
exit(1);
}
@@ -201,7 +202,7 @@ int load_multiboot(FWCfgState *fw_cfg,
&elf_low, &elf_high, 0, I386_ELF_MACHINE,
0, 0);
if (kernel_size < 0) {
- fprintf(stderr, "Error while loading elf kernel\n");
+ error_report("Error while loading elf kernel");
exit(1);
}
mh_load_addr = elf_low;
@@ -210,12 +211,13 @@ int load_multiboot(FWCfgState *fw_cfg,
mbs.mb_buf = g_malloc(mb_kernel_size);
if (rom_copy(mbs.mb_buf, mh_load_addr, mb_kernel_size) != mb_kernel_size) {
- fprintf(stderr, "Error while fetching elf kernel from rom\n");
+ error_report("Error while fetching elf kernel from rom");
exit(1);
}
- mb_debug("qemu: loading multiboot-elf kernel (%#x bytes) with entry %#zx\n",
- mb_kernel_size, (size_t)mh_entry_addr);
+ mb_debug("qemu: loading multiboot-elf kernel "
+ "(%#x bytes) with entry %#zx",
+ mb_kernel_size, (size_t)mh_entry_addr);
} else {
/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */
uint32_t mh_header_addr = ldl_p(header+i+12);
@@ -224,7 +226,7 @@ int load_multiboot(FWCfgState *fw_cfg,
mh_load_addr = ldl_p(header+i+16);
if (mh_header_addr < mh_load_addr) {
- fprintf(stderr, "invalid load_addr address\n");
+ error_report("invalid load_addr address");
exit(1);
}
@@ -234,20 +236,20 @@ int load_multiboot(FWCfgState *fw_cfg,
if (mh_load_end_addr) {
if (mh_load_end_addr < mh_load_addr) {
- fprintf(stderr, "invalid load_end_addr address\n");
+ error_report("invalid load_end_addr address");
exit(1);
}
mb_load_size = mh_load_end_addr - mh_load_addr;
} else {
if (kernel_file_size < mb_kernel_text_offset) {
- fprintf(stderr, "invalid kernel_file_size\n");
+ error_report("invalid kernel_file_size");
exit(1);
}
mb_load_size = kernel_file_size - mb_kernel_text_offset;
}
if (mh_bss_end_addr) {
if (mh_bss_end_addr < (mh_load_addr + mb_load_size)) {
- fprintf(stderr, "invalid bss_end_addr address\n");
+ error_report("invalid bss_end_addr address");
exit(1);
}
mb_kernel_size = mh_bss_end_addr - mh_load_addr;
@@ -255,17 +257,17 @@ int load_multiboot(FWCfgState *fw_cfg,
mb_kernel_size = mb_load_size;
}
- mb_debug("multiboot: header_addr = %#x\n", mh_header_addr);
- mb_debug("multiboot: load_addr = %#x\n", mh_load_addr);
- mb_debug("multiboot: load_end_addr = %#x\n", mh_load_end_addr);
- mb_debug("multiboot: bss_end_addr = %#x\n", mh_bss_end_addr);
- mb_debug("qemu: loading multiboot kernel (%#x bytes) at %#x\n",
+ mb_debug("multiboot: header_addr = %#x", mh_header_addr);
+ mb_debug("multiboot: load_addr = %#x", mh_load_addr);
+ mb_debug("multiboot: load_end_addr = %#x", mh_load_end_addr);
+ mb_debug("multiboot: bss_end_addr = %#x", mh_bss_end_addr);
+ mb_debug("qemu: loading multiboot kernel (%#x bytes) at %#x",
mb_load_size, mh_load_addr);
mbs.mb_buf = g_malloc(mb_kernel_size);
fseek(f, mb_kernel_text_offset, SEEK_SET);
if (fread(mbs.mb_buf, 1, mb_load_size, f) != mb_load_size) {
- fprintf(stderr, "fread() failed\n");
+ error_report("fread() failed");
exit(1);
}
memset(mbs.mb_buf + mb_load_size, 0, mb_kernel_size - mb_load_size);
@@ -319,10 +321,10 @@ int load_multiboot(FWCfgState *fw_cfg,
hwaddr c = mb_add_cmdline(&mbs, tmpbuf);
if ((next_space = strchr(tmpbuf, ' ')))
*next_space = '\0';
- mb_debug("multiboot loading module: %s\n", tmpbuf);
+ mb_debug("multiboot loading module: %s", tmpbuf);
mb_mod_length = get_image_size(tmpbuf);
if (mb_mod_length < 0) {
- fprintf(stderr, "Failed to open file '%s'\n", tmpbuf);
+ error_report("Failed to open file '%s'", tmpbuf);
exit(1);
}
@@ -333,7 +335,7 @@ int load_multiboot(FWCfgState *fw_cfg,
mb_add_mod(&mbs, mbs.mb_buf_phys + offs,
mbs.mb_buf_phys + offs + mb_mod_length, c);
- mb_debug("mod_start: %p\nmod_end: %p\n cmdline: "TARGET_FMT_plx"\n",
+ mb_debug("mod_start: %p\nmod_end: %p\n cmdline: "TARGET_FMT_plx,
(char *)mbs.mb_buf + offs,
(char *)mbs.mb_buf + offs + mb_mod_length, c);
initrd_filename = next_initrd+1;
@@ -361,10 +363,11 @@ int load_multiboot(FWCfgState *fw_cfg,
stl_p(bootinfo + MBI_BOOT_DEVICE, 0x8000ffff); /* XXX: use the -boot switch? */
stl_p(bootinfo + MBI_MMAP_ADDR, ADDR_E820_MAP);
- mb_debug("multiboot: entry_addr = %#x\n", mh_entry_addr);
- mb_debug(" mb_buf_phys = "TARGET_FMT_plx"\n", mbs.mb_buf_phys);
- mb_debug(" mod_start = "TARGET_FMT_plx"\n", mbs.mb_buf_phys + mbs.offset_mods);
- mb_debug(" mb_mods_count = %d\n", mbs.mb_mods_count);
+ mb_debug("multiboot: entry_addr = %#x", mh_entry_addr);
+ mb_debug(" mb_buf_phys = "TARGET_FMT_plx, mbs.mb_buf_phys);
+ mb_debug(" mod_start = "TARGET_FMT_plx,
+ mbs.mb_buf_phys + mbs.offset_mods);
+ mb_debug(" mb_mods_count = %d", mbs.mb_mods_count);
/* save bootinfo off the stack */
mb_bootinfo_data = g_memdup(bootinfo, sizeof(bootinfo));
--
1.8.3.1
next prev parent reply other threads:[~2017-12-21 17:34 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-21 17:25 [Qemu-devel] [PATCH QEMU v1 0/4] multiboot: bss_end_addr can be zero / cleanup Jack Schwartz
2017-12-21 17:25 ` [Qemu-devel] [PATCH QEMU v1 1/4] multiboot: bss_end_addr can be zero Jack Schwartz
2018-03-07 7:18 ` P J P
2017-12-21 17:25 ` [Qemu-devel] [PATCH QEMU v1 2/4] multiboot: Remove unused variables from multiboot.c Jack Schwartz
2018-03-07 7:20 ` P J P
2017-12-21 17:25 ` [Qemu-devel] [PATCH QEMU v1 3/4] multiboot: Use header names when displaying fields Jack Schwartz
2018-03-07 7:25 ` P J P
2017-12-21 17:25 ` Jack Schwartz [this message]
2018-03-07 7:40 ` [Qemu-devel] [PATCH QEMU v1 4/4] multiboot: fprintf(stderr...) -> error_report() P J P
2018-01-12 18:28 ` [Qemu-devel] ping: Re: [PATCH QEMU v1 0/4] multiboot: bss_end_addr can be zero / cleanup Jack Schwartz
2018-01-15 15:54 ` [Qemu-devel] " Kevin Wolf
2018-01-17 20:06 ` Jack Schwartz
2018-01-18 11:35 ` Kevin Wolf
2018-01-18 13:03 ` Daniel P. Berrange
2018-01-19 18:36 ` Anatol Pomozov
2018-01-20 0:18 ` Jack Schwartz
2018-01-22 9:57 ` Daniel P. Berrange
2018-03-02 19:32 ` Jack Schwartz
2018-03-05 8:13 ` Kevin Wolf
2018-03-07 1:52 ` Jack Schwartz
2018-03-07 11:14 ` Kevin Wolf
2018-03-14 17:23 ` [Qemu-devel] CVE-2018-7550 (was: multiboot: bss_end_addr can be zero / cleanup) Kevin Wolf
2018-03-14 17:35 ` Konrad Rzeszutek Wilk
2018-03-14 18:01 ` Kevin Wolf
2018-03-15 6:13 ` P J P
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