From: Jon Doron Date: Wed, 9 Jan 2019 08:22:03 +0000 (+0200) Subject: dump: Set correct vaddr for ELF dump X-Git-Tag: v4.0.0-rc0~111^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e17bebd049d78f489c2cff755e2b66a0536a156e;p=thirdparty%2Fqemu.git dump: Set correct vaddr for ELF dump vaddr needs to be equal to the paddr since the dump file represents the physical memory image. Without setting vaddr correctly, GDB would load all the different memory regions on top of each other to vaddr 0, thus making GDB showing the wrong memory data for a given address. Signed-off-by: Jon Doron Message-Id: <20190109082203.27142-1-arilou@gmail.com> Reviewed-by: Marc-André Lureau Tested-by: Marc-André Lureau Acked-by: Laszlo Ersek --- diff --git a/dump.c b/dump.c index ef1d8025c9d..107a67165a6 100644 --- a/dump.c +++ b/dump.c @@ -192,7 +192,7 @@ static void write_elf64_load(DumpState *s, MemoryMapping *memory_mapping, phdr.p_paddr = cpu_to_dump64(s, memory_mapping->phys_addr); phdr.p_filesz = cpu_to_dump64(s, filesz); phdr.p_memsz = cpu_to_dump64(s, memory_mapping->length); - phdr.p_vaddr = cpu_to_dump64(s, memory_mapping->virt_addr); + phdr.p_vaddr = cpu_to_dump64(s, memory_mapping->virt_addr) ?: phdr.p_paddr; assert(memory_mapping->length >= filesz); @@ -216,7 +216,8 @@ static void write_elf32_load(DumpState *s, MemoryMapping *memory_mapping, phdr.p_paddr = cpu_to_dump32(s, memory_mapping->phys_addr); phdr.p_filesz = cpu_to_dump32(s, filesz); phdr.p_memsz = cpu_to_dump32(s, memory_mapping->length); - phdr.p_vaddr = cpu_to_dump32(s, memory_mapping->virt_addr); + phdr.p_vaddr = + cpu_to_dump32(s, memory_mapping->virt_addr) ?: phdr.p_paddr; assert(memory_mapping->length >= filesz); diff --git a/scripts/dump-guest-memory.py b/scripts/dump-guest-memory.py index 198cd0fe40f..2c587cbefc5 100644 --- a/scripts/dump-guest-memory.py +++ b/scripts/dump-guest-memory.py @@ -163,6 +163,7 @@ class ELF(object): phdr = get_arch_phdr(self.endianness, self.elfclass) phdr.p_type = p_type phdr.p_paddr = p_paddr + phdr.p_vaddr = p_paddr phdr.p_filesz = p_size phdr.p_memsz = p_size self.segments.append(phdr)