switch elf_core_write_extra_phdrs() to dump_emit()
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 5 Oct 2013 21:22:57 +0000 (17:22 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 9 Nov 2013 05:16:23 +0000 (00:16 -0500)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/ia64/kernel/elfcore.c
arch/x86/um/elfcore.c
fs/binfmt_elf.c
fs/binfmt_elf_fdpic.c
include/linux/elfcore.h
kernel/elfcore.c

index bac1639bc3207acf97192e3300e6a961eca10fa7..798ce543da4b1bdf644ebe406c3a2df9b8d8b3c3 100644 (file)
@@ -11,8 +11,7 @@ Elf64_Half elf_core_extra_phdrs(void)
        return GATE_EHDR->e_phnum;
 }
 
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-                              unsigned long limit)
+int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
        const struct elf_phdr *const gate_phdrs =
                (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
@@ -35,8 +34,7 @@ int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
                        phdr.p_offset += ofs;
                }
                phdr.p_paddr = 0; /* match other core phdrs */
-               *size += sizeof(phdr);
-               if (*size > limit || !dump_write(file, &phdr, sizeof(phdr)))
+               if (!dump_emit(cprm, &phdr, sizeof(phdr)))
                        return 0;
        }
        return 1;
index 6bb49b687c9791a379317343d6597d996fa72402..fc21f98efafe159b2e842cc20cbd589b0f45951c 100644 (file)
@@ -11,8 +11,7 @@ Elf32_Half elf_core_extra_phdrs(void)
        return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
 }
 
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-                              unsigned long limit)
+int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
        if ( vsyscall_ehdr ) {
                const struct elfhdr *const ehdrp =
@@ -32,9 +31,7 @@ int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
                                phdr.p_offset += ofs;
                        }
                        phdr.p_paddr = 0; /* match other core phdrs */
-                       *size += sizeof(phdr);
-                       if (*size > limit
-                           || !dump_write(file, &phdr, sizeof(phdr)))
+                       if (!dump_emit(cprm, &phdr, sizeof(phdr)))
                                return 0;
                }
        }
index 00fd9c969a2716e04f387277fdc88c49afe5ebce..35c4886dae2d60ddcf182cbc068eee1277859540 100644 (file)
@@ -2152,11 +2152,11 @@ static int elf_core_dump(struct coredump_params *cprm)
                if (!dump_emit(cprm, &phdr, sizeof(phdr)))
                        goto end_coredump;
        }
-       size = cprm->written;
 
-       if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+       if (!elf_core_write_extra_phdrs(cprm, offset))
                goto end_coredump;
 
+       size = cprm->written;
        cprm->written = foffset;        /* will disappear */
        /* write out the notes section */
        if (!write_note_info(&info, cprm))
index ea4c6273b4a5b02406fc7e7b457c676f30724a78..44db8b92121a0d7f00078b93999bbcbe517ac026 100644 (file)
@@ -1791,9 +1791,11 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
                        goto end_coredump;
        }
 
-       if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+       cprm->written = size;
+       if (!elf_core_write_extra_phdrs(cprm, offset))
                goto end_coredump;
 
+       size = cprm->written;
        /* write out the notes section */
        for (i = 0; i < numnote; i++)
                if (!writenote(notes + i, cprm->file, &foffset))
index cdd3d13efce7c24da5e65fc3d651b1564c3a20e0..1b92a8c406242d5988c0092995aab20971aa2bae 100644 (file)
@@ -6,6 +6,8 @@
 #include <asm/elf.h>
 #include <uapi/linux/elfcore.h>
 
+struct coredump_params;
+
 static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
 {
 #ifdef ELF_CORE_COPY_REGS
@@ -63,8 +65,7 @@ static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregse
  */
 extern Elf_Half elf_core_extra_phdrs(void);
 extern int
-elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-                          unsigned long limit);
+elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
 extern int
 elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
 extern size_t elf_core_extra_data_size(void);
index ff915efef66db9d8635d13a2bf1a783c4059f00e..e556751d15d944d3ee51706bacb6d431979fe541 100644 (file)
@@ -1,23 +1,19 @@
 #include <linux/elf.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
-
-#include <asm/elf.h>
-
+#include <linux/binfmts.h>
 
 Elf_Half __weak elf_core_extra_phdrs(void)
 {
        return 0;
 }
 
-int __weak elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-                                     unsigned long limit)
+int __weak elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
        return 1;
 }
 
-int __weak elf_core_write_extra_data(struct file *file, size_t *size,
-                                    unsigned long limit)
+int __weak elf_core_write_extra_data(struct coredump_params *cprm)
 {
        return 1;
 }