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-rw-r--r--arch/ia64/include/asm/elf.h48
-rw-r--r--arch/ia64/kernel/Makefile2
-rw-r--r--arch/ia64/kernel/elfcore.c64
-rw-r--r--arch/um/sys-i386/Makefile2
-rw-r--r--arch/um/sys-i386/asm/elf.h43
-rw-r--r--arch/um/sys-i386/elfcore.c67
6 files changed, 135 insertions, 91 deletions
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
index 4c41656ede8..b5298eb09ad 100644
--- a/arch/ia64/include/asm/elf.h
+++ b/arch/ia64/include/asm/elf.h
@@ -219,54 +219,6 @@ do { \
NEW_AUX_ENT(AT_SYSINFO_EHDR, (unsigned long) GATE_EHDR); \
} while (0)
-
-/*
- * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
- * extra segments containing the gate DSO contents. Dumping its
- * contents makes post-mortem fully interpretable later without matching up
- * the same kernel and hardware config to see what PC values meant.
- * Dumping its extra ELF program headers includes all the other information
- * a debugger needs to easily find how the gate DSO was being used.
- */
-#define ELF_CORE_EXTRA_PHDRS (GATE_EHDR->e_phnum)
-#define ELF_CORE_WRITE_EXTRA_PHDRS \
-do { \
- const struct elf_phdr *const gate_phdrs = \
- (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff); \
- int i; \
- Elf64_Off ofs = 0; \
- for (i = 0; i < GATE_EHDR->e_phnum; ++i) { \
- struct elf_phdr phdr = gate_phdrs[i]; \
- if (phdr.p_type == PT_LOAD) { \
- phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz); \
- phdr.p_filesz = phdr.p_memsz; \
- if (ofs == 0) { \
- ofs = phdr.p_offset = offset; \
- offset += phdr.p_filesz; \
- } \
- else \
- phdr.p_offset = ofs; \
- } \
- else \
- phdr.p_offset += ofs; \
- phdr.p_paddr = 0; /* match other core phdrs */ \
- DUMP_WRITE(&phdr, sizeof(phdr)); \
- } \
-} while (0)
-#define ELF_CORE_WRITE_EXTRA_DATA \
-do { \
- const struct elf_phdr *const gate_phdrs = \
- (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff); \
- int i; \
- for (i = 0; i < GATE_EHDR->e_phnum; ++i) { \
- if (gate_phdrs[i].p_type == PT_LOAD) { \
- DUMP_WRITE((void *) gate_phdrs[i].p_vaddr, \
- PAGE_ALIGN(gate_phdrs[i].p_memsz)); \
- break; \
- } \
- } \
-} while (0)
-
/*
* format for entries in the Global Offset Table
*/
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 4138282aefa..db10b1e378b 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -45,6 +45,8 @@ endif
obj-$(CONFIG_DMAR) += pci-dma.o
obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
+obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+
# fp_emulate() expects f2-f5,f16-f31 to contain the user-level state.
CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31
diff --git a/arch/ia64/kernel/elfcore.c b/arch/ia64/kernel/elfcore.c
new file mode 100644
index 00000000000..57a2298a858
--- /dev/null
+++ b/arch/ia64/kernel/elfcore.c
@@ -0,0 +1,64 @@
+#include <linux/elf.h>
+#include <linux/coredump.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+
+#include <asm/elf.h>
+
+
+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)
+{
+ const struct elf_phdr *const gate_phdrs =
+ (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
+ int i;
+ Elf64_Off ofs = 0;
+
+ for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
+ struct elf_phdr phdr = gate_phdrs[i];
+
+ if (phdr.p_type == PT_LOAD) {
+ phdr.p_memsz = PAGE_ALIGN(phdr.p_memsz);
+ phdr.p_filesz = phdr.p_memsz;
+ if (ofs == 0) {
+ ofs = phdr.p_offset = offset;
+ offset += phdr.p_filesz;
+ } else {
+ phdr.p_offset = ofs;
+ }
+ } else {
+ phdr.p_offset += ofs;
+ }
+ phdr.p_paddr = 0; /* match other core phdrs */
+ *size += sizeof(phdr);
+ if (*size > limit || !dump_write(file, &phdr, sizeof(phdr)))
+ return 0;
+ }
+ return 1;
+}
+
+int elf_core_write_extra_data(struct file *file, size_t *size,
+ unsigned long limit)
+{
+ const struct elf_phdr *const gate_phdrs =
+ (const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
+ int i;
+
+ for (i = 0; i < GATE_EHDR->e_phnum; ++i) {
+ if (gate_phdrs[i].p_type == PT_LOAD) {
+ void *addr = (void *)gate_phdrs[i].p_vaddr;
+ size_t memsz = PAGE_ALIGN(gate_phdrs[i].p_memsz);
+
+ *size += memsz;
+ if (*size > limit || !dump_write(file, addr, memsz))
+ return 0;
+ break;
+ }
+ }
+ return 1;
+}
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index 1b549bca464..804b28dd032 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -6,6 +6,8 @@ obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
ptrace_user.o setjmp.o signal.o stub.o stub_segv.o syscalls.o sysrq.o \
sys_call_table.o tls.o
+obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+
subarch-obj-y = lib/semaphore_32.o lib/string_32.o
subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
subarch-obj-$(CONFIG_MODULES) += kernel/module.o
diff --git a/arch/um/sys-i386/asm/elf.h b/arch/um/sys-i386/asm/elf.h
index 770885472ed..e64cd41d7ba 100644
--- a/arch/um/sys-i386/asm/elf.h
+++ b/arch/um/sys-i386/asm/elf.h
@@ -116,47 +116,4 @@ do { \
} \
} while (0)
-/*
- * These macros parameterize elf_core_dump in fs/binfmt_elf.c to write out
- * extra segments containing the vsyscall DSO contents. Dumping its
- * contents makes post-mortem fully interpretable later without matching up
- * the same kernel and hardware config to see what PC values meant.
- * Dumping its extra ELF program headers includes all the other information
- * a debugger needs to easily find how the vsyscall DSO was being used.
- */
-#define ELF_CORE_EXTRA_PHDRS \
- (vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0 )
-
-#define ELF_CORE_WRITE_EXTRA_PHDRS \
-if ( vsyscall_ehdr ) { \
- const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
- const struct elf_phdr *const phdrp = \
- (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
- int i; \
- Elf32_Off ofs = 0; \
- for (i = 0; i < ehdrp->e_phnum; ++i) { \
- struct elf_phdr phdr = phdrp[i]; \
- if (phdr.p_type == PT_LOAD) { \
- ofs = phdr.p_offset = offset; \
- offset += phdr.p_filesz; \
- } \
- else \
- phdr.p_offset += ofs; \
- phdr.p_paddr = 0; /* match other core phdrs */ \
- DUMP_WRITE(&phdr, sizeof(phdr)); \
- } \
-}
-#define ELF_CORE_WRITE_EXTRA_DATA \
-if ( vsyscall_ehdr ) { \
- const struct elfhdr *const ehdrp = (struct elfhdr *)vsyscall_ehdr; \
- const struct elf_phdr *const phdrp = \
- (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff); \
- int i; \
- for (i = 0; i < ehdrp->e_phnum; ++i) { \
- if (phdrp[i].p_type == PT_LOAD) \
- DUMP_WRITE((void *) phdrp[i].p_vaddr, \
- phdrp[i].p_filesz); \
- } \
-}
-
#endif
diff --git a/arch/um/sys-i386/elfcore.c b/arch/um/sys-i386/elfcore.c
new file mode 100644
index 00000000000..30cac52a04b
--- /dev/null
+++ b/arch/um/sys-i386/elfcore.c
@@ -0,0 +1,67 @@
+#include <linux/elf.h>
+#include <linux/coredump.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+
+#include <asm/elf.h>
+
+
+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)
+{
+ if ( vsyscall_ehdr ) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *) vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+ int i;
+ Elf32_Off ofs = 0;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i) {
+ struct elf_phdr phdr = phdrp[i];
+
+ if (phdr.p_type == PT_LOAD) {
+ ofs = phdr.p_offset = offset;
+ offset += phdr.p_filesz;
+ } else {
+ phdr.p_offset += ofs;
+ }
+ phdr.p_paddr = 0; /* match other core phdrs */
+ *size += sizeof(phdr);
+ if (*size > limit
+ || !dump_write(file, &phdr, sizeof(phdr)))
+ return 0;
+ }
+ }
+ return 1;
+}
+
+int elf_core_write_extra_data(struct file *file, size_t *size,
+ unsigned long limit)
+{
+ if ( vsyscall_ehdr ) {
+ const struct elfhdr *const ehdrp =
+ (struct elfhdr *) vsyscall_ehdr;
+ const struct elf_phdr *const phdrp =
+ (const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
+ int i;
+
+ for (i = 0; i < ehdrp->e_phnum; ++i) {
+ if (phdrp[i].p_type == PT_LOAD) {
+ void *addr = (void *) phdrp[i].p_vaddr;
+ size_t filesz = phdrp[i].p_filesz;
+
+ *size += filesz;
+ if (*size > limit
+ || !dump_write(file, addr, filesz))
+ return 0;
+ }
+ }
+ }
+ return 1;
+}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-02 08:00:10 +0000