The core file contains register's value. These APIs write registers to
core file, and them will be called in the following patch.
Signed-off-by: Wen Congyang <we...@cn.fujitsu.com>
---
cpu-all.h | 6 +
target-i386/arch-dump.c | 243 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 249 insertions(+), 0 deletions(-)
diff --git a/cpu-all.h b/cpu-all.h
index bc32c11..ffb539c 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -578,8 +578,14 @@ int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
#if defined(TARGET_I386)
void cpu_get_memory_mapping(MemoryMappingList *list, CPUState *env);
+int cpu_write_elf64_note(int fd, CPUState *env, int cpuid,
+ target_phys_addr_t *offset);
+int cpu_write_elf32_note(int fd, CPUState *env, int cpuid,
+ target_phys_addr_t *offset);
#else
#define cpu_get_memory_mapping(list, env)
+#define cpu_write_elf64_note(fd, env, cpuid, offset) ({ -1; })
+#define cpu_write_elf32_note(fd, env, cpuid, offset) ({ -1; })
#endif
#endif /* CPU_ALL_H */
diff --git a/target-i386/arch-dump.c b/target-i386/arch-dump.c
index 2e921c7..4c0ff77 100644
--- a/target-i386/arch-dump.c
+++ b/target-i386/arch-dump.c
@@ -11,8 +11,11 @@
*
*/
+#include <elf.h>
+
#include "cpu.h"
#include "cpu-all.h"
+#include "monitor.h"
/* PAE Paging or IA-32e Paging */
static void walk_pte(MemoryMappingList *list, target_phys_addr_t
pte_start_addr,
@@ -252,3 +255,243 @@ void cpu_get_memory_mapping(MemoryMappingList *list,
CPUState *env)
walk_pde2(list, pde_addr, env->a20_mask, pse);
}
}
+
+#ifdef TARGET_X86_64
+typedef struct {
+ target_ulong r15, r14, r13, r12, rbp, rbx, r11, r10;
+ target_ulong r9, r8, rax, rcx, rdx, rsi, rdi, orig_rax;
+ target_ulong rip, cs, eflags;
+ target_ulong rsp, ss;
+ target_ulong fs_base, gs_base;
+ target_ulong ds, es, fs, gs;
+} x86_64_user_regs_struct;
+
+static int x86_64_write_elf64_note(int fd, CPUState *env, int id,
+ target_phys_addr_t *offset)
+{
+ x86_64_user_regs_struct regs;
+ Elf64_Nhdr *note;
+ char *buf;
+ int descsz, note_size, name_size = 5;
+ const char *name = "CORE";
+ int ret;
+
+ regs.r15 = env->regs[15];
+ regs.r14 = env->regs[14];
+ regs.r13 = env->regs[13];
+ regs.r12 = env->regs[12];
+ regs.r11 = env->regs[11];
+ regs.r10 = env->regs[10];
+ regs.r9 = env->regs[9];
+ regs.r8 = env->regs[8];
+ regs.rbp = env->regs[R_EBP];
+ regs.rsp = env->regs[R_ESP];
+ regs.rdi = env->regs[R_EDI];
+ regs.rsi = env->regs[R_ESI];
+ regs.rdx = env->regs[R_EDX];
+ regs.rcx = env->regs[R_ECX];
+ regs.rbx = env->regs[R_EBX];
+ regs.rax = env->regs[R_EAX];
+ regs.rip = env->eip;
+ regs.eflags = env->eflags;
+
+ regs.orig_rax = 0; /* FIXME */
+ regs.cs = env->segs[R_CS].selector;
+ regs.ss = env->segs[R_SS].selector;
+ regs.fs_base = env->segs[R_FS].base;
+ regs.gs_base = env->segs[R_GS].base;
+ regs.ds = env->segs[R_DS].selector;
+ regs.es = env->segs[R_ES].selector;
+ regs.fs = env->segs[R_FS].selector;
+ regs.gs = env->segs[R_GS].selector;
+
+ descsz = 336; /* sizeof(prstatus_t) is 336 on x86_64 box */
+ note_size = ((sizeof(Elf64_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
+ (descsz + 3) / 4) * 4;
+ note = g_malloc(note_size);
+
+ memset(note, 0, note_size);
+ note->n_namesz = cpu_to_le32(name_size);
+ note->n_descsz = cpu_to_le32(descsz);
+ note->n_type = cpu_to_le32(NT_PRSTATUS);
+ buf = (char *)note;
+ buf += ((sizeof(Elf64_Nhdr) + 3) / 4) * 4;
+ memcpy(buf, name, name_size);
+ buf += ((name_size + 3) / 4) * 4;
+ memcpy(buf + 32, &id, 4); /* pr_pid */
+ buf += descsz - sizeof(x86_64_user_regs_struct)-sizeof(target_ulong);
+ memcpy(buf, ®s, sizeof(x86_64_user_regs_struct));
+
+ lseek(fd, *offset, SEEK_SET);
+ ret = write(fd, note, note_size);
+ g_free(note);
+ if (ret < 0) {
+ return -1;
+ }
+
+ *offset += note_size;
+
+ return 0;
+}
+#endif
+
+typedef struct {
+ uint32_t ebx, ecx, edx, esi, edi, ebp, eax;
+ unsigned short ds, __ds, es, __es;
+ unsigned short fs, __fs, gs, __gs;
+ uint32_t orig_eax, eip;
+ unsigned short cs, __cs;
+ uint32_t eflags, esp;
+ unsigned short ss, __ss;
+} x86_user_regs_struct;
+
+static int x86_write_elf64_note(int fd, CPUState *env, int id,
+ target_phys_addr_t *offset)
+{
+ x86_user_regs_struct regs;
+ Elf64_Nhdr *note;
+ char *buf;
+ int descsz, note_size, name_size = 5;
+ const char *name = "CORE";
+ int ret;
+
+ regs.ebp = env->regs[R_EBP] & 0xffffffff;
+ regs.esp = env->regs[R_ESP] & 0xffffffff;
+ regs.edi = env->regs[R_EDI] & 0xffffffff;
+ regs.esi = env->regs[R_ESI] & 0xffffffff;
+ regs.edx = env->regs[R_EDX] & 0xffffffff;
+ regs.ecx = env->regs[R_ECX] & 0xffffffff;
+ regs.ebx = env->regs[R_EBX] & 0xffffffff;
+ regs.eax = env->regs[R_EAX] & 0xffffffff;
+ regs.eip = env->eip & 0xffffffff;
+ regs.eflags = env->eflags & 0xffffffff;
+
+ regs.cs = env->segs[R_CS].selector;
+ regs.__cs = 0;
+ regs.ss = env->segs[R_SS].selector;
+ regs.__ss = 0;
+ regs.ds = env->segs[R_DS].selector;
+ regs.__ds = 0;
+ regs.es = env->segs[R_ES].selector;
+ regs.__es = 0;
+ regs.fs = env->segs[R_FS].selector;
+ regs.__fs = 0;
+ regs.gs = env->segs[R_GS].selector;
+ regs.__gs = 0;
+
+ descsz = 144; /* sizeof(prstatus_t) is 144 on x86 box */
+ note_size = ((sizeof(Elf64_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
+ (descsz + 3) / 4) * 4;
+ note = g_malloc(note_size);
+
+ memset(note, 0, note_size);
+ note->n_namesz = cpu_to_le32(name_size);
+ note->n_descsz = cpu_to_le32(descsz);
+ note->n_type = cpu_to_le32(NT_PRSTATUS);
+ buf = (char *)note;
+ buf += ((sizeof(Elf64_Nhdr) + 3) / 4) * 4;
+ memcpy(buf, name, name_size);
+ buf += ((name_size + 3) / 4) * 4;
+ memcpy(buf + 24, &id, 4); /* pr_pid */
+ buf += descsz - sizeof(x86_user_regs_struct)-4;
+ memcpy(buf, ®s, sizeof(x86_user_regs_struct));
+
+ lseek(fd, *offset, SEEK_SET);
+ ret = write(fd, note, note_size);
+ g_free(note);
+ if (ret < 0) {
+ return -1;
+ }
+
+ *offset += note_size;
+
+ return 0;
+}
+
+static int x86_write_elf32_note(int fd, CPUState *env, int id,
+ target_phys_addr_t *offset)
+{
+ x86_user_regs_struct regs;
+ Elf32_Nhdr *note;
+ char *buf;
+ int descsz, note_size, name_size = 5;
+ const char *name = "CORE";
+ int ret;
+
+ regs.ebp = env->regs[R_EBP] & 0xffffffff;
+ regs.esp = env->regs[R_ESP] & 0xffffffff;
+ regs.edi = env->regs[R_EDI] & 0xffffffff;
+ regs.esi = env->regs[R_ESI] & 0xffffffff;
+ regs.edx = env->regs[R_EDX] & 0xffffffff;
+ regs.ecx = env->regs[R_ECX] & 0xffffffff;
+ regs.ebx = env->regs[R_EBX] & 0xffffffff;
+ regs.eax = env->regs[R_EAX] & 0xffffffff;
+ regs.eip = env->eip & 0xffffffff;
+ regs.eflags = env->eflags & 0xffffffff;
+
+ regs.cs = env->segs[R_CS].selector;
+ regs.__cs = 0;
+ regs.ss = env->segs[R_SS].selector;
+ regs.__ss = 0;
+ regs.ds = env->segs[R_DS].selector;
+ regs.__ds = 0;
+ regs.es = env->segs[R_ES].selector;
+ regs.__es = 0;
+ regs.fs = env->segs[R_FS].selector;
+ regs.__fs = 0;
+ regs.gs = env->segs[R_GS].selector;
+ regs.__gs = 0;
+
+ descsz = 144; /* sizeof(prstatus_t) is 144 on x86 box */
+ note_size = ((sizeof(Elf32_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
+ (descsz + 3) / 4) * 4;
+ note = g_malloc(note_size);
+
+ memset(note, 0, note_size);
+ note->n_namesz = cpu_to_le32(name_size);
+ note->n_descsz = cpu_to_le32(descsz);
+ note->n_type = cpu_to_le32(NT_PRSTATUS);
+ buf = (char *)note;
+ buf += ((sizeof(Elf32_Nhdr) + 3) / 4) * 4;
+ memcpy(buf, name, name_size);
+ buf += ((name_size + 3) / 4) * 4;
+ memcpy(buf + 24, &id, 4); /* pr_pid */
+ buf += descsz - sizeof(x86_user_regs_struct)-4;
+ memcpy(buf, ®s, sizeof(x86_user_regs_struct));
+
+ lseek(fd, *offset, SEEK_SET);
+ ret = write(fd, note, note_size);
+ g_free(note);
+ if (ret < 0) {
+ return -1;
+ }
+
+ *offset += note_size;
+
+ return 0;
+}
+
+int cpu_write_elf64_note(int fd, CPUState *env, int cpuid,
+ target_phys_addr_t *offset)
+{
+ int ret;
+#ifdef TARGET_X86_64
+ bool lma = !!(first_cpu->hflags & HF_LMA_MASK);
+
+ if (lma) {
+ ret = x86_64_write_elf64_note(fd, env, cpuid, offset);
+ } else {
+#endif
+ ret = x86_write_elf64_note(fd, env, cpuid, offset);
+#ifdef TARGET_X86_64
+ }
+#endif
+
+ return ret;
+}
+
+int cpu_write_elf32_note(int fd, CPUState *env, int cpuid,
+ target_phys_addr_t *offset)
+{
+ return x86_write_elf32_note(fd, env, cpuid, offset);
+}
--
1.7.1
