diff options
| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2017-06-06 21:25:10 +0400 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2017-08-31 12:29:07 +0200 |
| commit | 18a1f0d767852a7d6a000bffeb65d8825ae83a79 (patch) | |
| tree | e88f89685ad6cc3eec6a42c1f888fc18eef93454 /target/i386/arch_dump.c | |
| parent | 6402cbbbfd18322df8914ffc320b5e122399096b (diff) | |
i386: introduce ELF_NOTE_SIZE macro
Factour out a common pattern to compute the ELF note size.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/i386/arch_dump.c')
| -rw-r--r-- | target/i386/arch_dump.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/target/i386/arch_dump.c b/target/i386/arch_dump.c index e081f677fa..e682904052 100644 --- a/target/i386/arch_dump.c +++ b/target/i386/arch_dump.c @@ -18,6 +18,11 @@ #include "elf.h" #include "sysemu/memory_mapping.h" +#define ELF_NOTE_SIZE(hdr_size, name_size, desc_size) \ + ((DIV_ROUND_UP((hdr_size), 4) \ + + DIV_ROUND_UP((name_size), 4) \ + + DIV_ROUND_UP((desc_size), 4)) * 4) + #ifdef TARGET_X86_64 typedef struct { target_ulong r15, r14, r13, r12, rbp, rbx, r11, r10; @@ -77,8 +82,7 @@ static int x86_64_write_elf64_note(WriteCoreDumpFunction f, regs.gs = env->segs[R_GS].selector; descsz = sizeof(x86_64_elf_prstatus); - note_size = (DIV_ROUND_UP(sizeof(Elf64_Nhdr), 4) + DIV_ROUND_UP(name_size, 4) + - DIV_ROUND_UP(descsz, 4)) * 4; + note_size = ELF_NOTE_SIZE(sizeof(Elf64_Nhdr), name_size, descsz); note = g_malloc0(note_size); note->n_namesz = cpu_to_le32(name_size); note->n_descsz = cpu_to_le32(descsz); @@ -156,8 +160,7 @@ static int x86_write_elf64_note(WriteCoreDumpFunction f, CPUX86State *env, x86_fill_elf_prstatus(&prstatus, env, id); descsz = sizeof(x86_elf_prstatus); - note_size = (DIV_ROUND_UP(sizeof(Elf64_Nhdr), 4) + DIV_ROUND_UP(name_size, 4) + - DIV_ROUND_UP(descsz, 4)) * 4; + note_size = ELF_NOTE_SIZE(sizeof(Elf64_Nhdr), name_size, descsz); note = g_malloc0(note_size); note->n_namesz = cpu_to_le32(name_size); note->n_descsz = cpu_to_le32(descsz); @@ -211,8 +214,7 @@ int x86_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs, x86_fill_elf_prstatus(&prstatus, &cpu->env, cpuid); descsz = sizeof(x86_elf_prstatus); - note_size = (DIV_ROUND_UP(sizeof(Elf32_Nhdr), 4) + DIV_ROUND_UP(name_size, 4) + - DIV_ROUND_UP(descsz, 4)) * 4; + note_size = ELF_NOTE_SIZE(sizeof(Elf32_Nhdr), name_size, descsz); note = g_malloc0(note_size); note->n_namesz = cpu_to_le32(name_size); note->n_descsz = cpu_to_le32(descsz); @@ -443,10 +445,8 @@ ssize_t cpu_get_note_size(int class, int machine, int nr_cpus) #endif qemu_desc_size = sizeof(QEMUCPUState); - elf_note_size = (DIV_ROUND_UP(note_head_size, 4) + DIV_ROUND_UP(name_size, 4) + - DIV_ROUND_UP(elf_desc_size, 4)) * 4; - qemu_note_size = (DIV_ROUND_UP(note_head_size, 4) + DIV_ROUND_UP(name_size, 4) + - DIV_ROUND_UP(qemu_desc_size, 4)) * 4; + elf_note_size = ELF_NOTE_SIZE(note_head_size, name_size, elf_desc_size); + qemu_note_size = ELF_NOTE_SIZE(note_head_size, name_size, qemu_desc_size); return (elf_note_size + qemu_note_size) * nr_cpus; } |