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Diffstat (limited to 'gdb/amd64-linux-nat.c')
-rw-r--r--gdb/amd64-linux-nat.c154
1 files changed, 74 insertions, 80 deletions
diff --git a/gdb/amd64-linux-nat.c b/gdb/amd64-linux-nat.c
index b5b0703..799d79d 100644
--- a/gdb/amd64-linux-nat.c
+++ b/gdb/amd64-linux-nat.c
@@ -42,7 +42,7 @@
/* This definition comes from prctl.h. Kernels older than 2.5.64
do not have it. */
#ifndef PTRACE_ARCH_PRCTL
-#define PTRACE_ARCH_PRCTL 30
+#define PTRACE_ARCH_PRCTL 30
#endif
struct amd64_linux_nat_target final : public x86_linux_nat_target
@@ -51,8 +51,8 @@ struct amd64_linux_nat_target final : public x86_linux_nat_target
void fetch_registers (struct regcache *, int) override;
void store_registers (struct regcache *, int) override;
- bool low_siginfo_fixup (siginfo_t *ptrace, gdb_byte *inf, int direction)
- override;
+ bool low_siginfo_fixup (siginfo_t *ptrace, gdb_byte *inf,
+ int direction) override;
};
static amd64_linux_nat_target the_amd64_linux_nat_target;
@@ -66,28 +66,24 @@ static amd64_linux_nat_target the_amd64_linux_nat_target;
little-endian we get away with that. */
/* From <sys/reg.h> on GNU/Linux i386. */
-static int amd64_linux_gregset32_reg_offset[] =
-{
- RAX * 8, RCX * 8, /* %eax, %ecx */
- RDX * 8, RBX * 8, /* %edx, %ebx */
- RSP * 8, RBP * 8, /* %esp, %ebp */
- RSI * 8, RDI * 8, /* %esi, %edi */
- RIP * 8, EFLAGS * 8, /* %eip, %eflags */
- CS * 8, SS * 8, /* %cs, %ss */
- DS * 8, ES * 8, /* %ds, %es */
- FS * 8, GS * 8, /* %fs, %gs */
- -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, -1, -1, -1, -1,
- -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
- -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
- -1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
- -1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
- -1, /* PKEYS register PKRU */
- ORIG_RAX * 8 /* "orig_eax" */
+static int amd64_linux_gregset32_reg_offset[] = {
+ RAX * 8, RCX * 8, /* %eax, %ecx */
+ RDX * 8, RBX * 8, /* %edx, %ebx */
+ RSP * 8, RBP * 8, /* %esp, %ebp */
+ RSI * 8, RDI * 8, /* %esi, %edi */
+ RIP * 8, EFLAGS * 8, /* %eip, %eflags */
+ CS * 8, SS * 8, /* %cs, %ss */
+ DS * 8, ES * 8, /* %ds, %es */
+ FS * 8, GS * 8, /* %fs, %gs */
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
+ -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
+ -1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
+ -1, /* PKEYS register PKRU */
+ ORIG_RAX * 8 /* "orig_eax" */
};
-
/* Transfering the general-purpose registers between GDB, inferiors
and core files. */
@@ -149,7 +145,7 @@ amd64_linux_collect_native_gregset (const struct regcache *regcache,
if (regnum == -1 || regnum == I386_EAX_REGNUM)
{
- void *ptr = ((gdb_byte *) gregs
+ void *ptr = ((gdb_byte *) gregs
+ amd64_linux_gregset32_reg_offset[I386_EAX_REGNUM]);
*(int64_t *) ptr = *(int32_t *) ptr;
@@ -171,8 +167,8 @@ supply_gregset (struct regcache *regcache, const elf_gregset_t *gregsetp)
do this for all registers. */
void
-fill_gregset (const struct regcache *regcache,
- elf_gregset_t *gregsetp, int regnum)
+fill_gregset (const struct regcache *regcache, elf_gregset_t *gregsetp,
+ int regnum)
{
amd64_linux_collect_native_gregset (regcache, gregsetp, regnum);
}
@@ -193,12 +189,11 @@ supply_fpregset (struct regcache *regcache, const elf_fpregset_t *fpregsetp)
-1, do this for all registers. */
void
-fill_fpregset (const struct regcache *regcache,
- elf_fpregset_t *fpregsetp, int regnum)
+fill_fpregset (const struct regcache *regcache, elf_fpregset_t *fpregsetp,
+ int regnum)
{
amd64_collect_fxsave (regcache, regnum, fpregsetp);
}
-
/* Transferring arbitrary registers between GDB and inferior. */
@@ -222,7 +217,7 @@ amd64_linux_nat_target::fetch_registers (struct regcache *regcache, int regnum)
elf_gregset_t regs;
if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
- perror_with_name (_("Couldn't get registers"));
+ perror_with_name (_ ("Couldn't get registers"));
amd64_supply_native_gregset (regcache, &regs, -1);
if (regnum != -1)
@@ -246,16 +241,17 @@ amd64_linux_nat_target::fetch_registers (struct regcache *regcache, int regnum)
memset (xstateregs, 0, sizeof (xstateregs));
iov.iov_base = xstateregs;
iov.iov_len = sizeof (xstateregs);
- if (ptrace (PTRACE_GETREGSET, tid,
- (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
- perror_with_name (_("Couldn't get extended state status"));
+ if (ptrace (PTRACE_GETREGSET, tid, (unsigned int) NT_X86_XSTATE,
+ (long) &iov)
+ < 0)
+ perror_with_name (_ ("Couldn't get extended state status"));
amd64_supply_xsave (regcache, -1, xstateregs);
}
else
{
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name (_("Couldn't get floating point status"));
+ perror_with_name (_ ("Couldn't get floating point status"));
amd64_supply_fxsave (regcache, -1, &fpregs);
}
@@ -282,12 +278,12 @@ amd64_linux_nat_target::store_registers (struct regcache *regcache, int regnum)
elf_gregset_t regs;
if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
- perror_with_name (_("Couldn't get registers"));
+ perror_with_name (_ ("Couldn't get registers"));
amd64_linux_collect_native_gregset (regcache, &regs, regnum);
if (ptrace (PTRACE_SETREGS, tid, 0, (long) &regs) < 0)
- perror_with_name (_("Couldn't write registers"));
+ perror_with_name (_ ("Couldn't write registers"));
if (regnum != -1)
return;
@@ -304,44 +300,45 @@ amd64_linux_nat_target::store_registers (struct regcache *regcache, int regnum)
iov.iov_base = xstateregs;
iov.iov_len = sizeof (xstateregs);
- if (ptrace (PTRACE_GETREGSET, tid,
- (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
- perror_with_name (_("Couldn't get extended state status"));
+ if (ptrace (PTRACE_GETREGSET, tid, (unsigned int) NT_X86_XSTATE,
+ (long) &iov)
+ < 0)
+ perror_with_name (_ ("Couldn't get extended state status"));
amd64_collect_xsave (regcache, regnum, xstateregs, 0);
- if (ptrace (PTRACE_SETREGSET, tid,
- (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
- perror_with_name (_("Couldn't write extended state status"));
+ if (ptrace (PTRACE_SETREGSET, tid, (unsigned int) NT_X86_XSTATE,
+ (long) &iov)
+ < 0)
+ perror_with_name (_ ("Couldn't write extended state status"));
}
else
{
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name (_("Couldn't get floating point status"));
+ perror_with_name (_ ("Couldn't get floating point status"));
amd64_collect_fxsave (regcache, regnum, &fpregs);
if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
- perror_with_name (_("Couldn't write floating point status"));
+ perror_with_name (_ ("Couldn't write floating point status"));
}
}
}
-
/* This function is called by libthread_db as part of its handling of
a request for a thread's local storage address. */
ps_err_e
-ps_get_thread_area (struct ps_prochandle *ph,
- lwpid_t lwpid, int idx, void **base)
+ps_get_thread_area (struct ps_prochandle *ph, lwpid_t lwpid, int idx,
+ void **base)
{
if (gdbarch_bfd_arch_info (ph->thread->inf->gdbarch)->bits_per_word == 32)
{
unsigned int base_addr;
ps_err_e result;
- result = x86_linux_get_thread_area (lwpid, (void *) (long) idx,
- &base_addr);
+ result
+ = x86_linux_get_thread_area (lwpid, (void *) (long) idx, &base_addr);
if (result == PS_OK)
{
/* Extend the value to 64 bits. Here it's assumed that
@@ -352,7 +349,6 @@ ps_get_thread_area (struct ps_prochandle *ph,
}
else
{
-
/* FIXME: ezannoni-2003-07-09 see comment above about include
file order. We could be getting bogus values for these two. */
gdb_assert (FS < ELF_NGREG);
@@ -360,41 +356,40 @@ ps_get_thread_area (struct ps_prochandle *ph,
switch (idx)
{
case FS:
- {
- unsigned long fs;
- errno = 0;
- fs = ptrace (PTRACE_PEEKUSER, lwpid,
- offsetof (struct user_regs_struct, fs_base), 0);
- if (errno == 0)
- {
- *base = (void *) fs;
- return PS_OK;
- }
- }
+ {
+ unsigned long fs;
+ errno = 0;
+ fs = ptrace (PTRACE_PEEKUSER, lwpid,
+ offsetof (struct user_regs_struct, fs_base), 0);
+ if (errno == 0)
+ {
+ *base = (void *) fs;
+ return PS_OK;
+ }
+ }
break;
case GS:
- {
- unsigned long gs;
- errno = 0;
- gs = ptrace (PTRACE_PEEKUSER, lwpid,
- offsetof (struct user_regs_struct, gs_base), 0);
- if (errno == 0)
- {
- *base = (void *) gs;
- return PS_OK;
- }
- }
+ {
+ unsigned long gs;
+ errno = 0;
+ gs = ptrace (PTRACE_PEEKUSER, lwpid,
+ offsetof (struct user_regs_struct, gs_base), 0);
+ if (errno == 0)
+ {
+ *base = (void *) gs;
+ return PS_OK;
+ }
+ }
break;
- default: /* Should not happen. */
+ default: /* Should not happen. */
return PS_BADADDR;
}
}
- return PS_ERR; /* ptrace failed. */
+ return PS_ERR; /* ptrace failed. */
}
-
/* Convert a ptrace/host siginfo object, into/from the siginfo in the
layout of the inferiors' architecture. Returns true if any
@@ -403,8 +398,7 @@ ps_get_thread_area (struct ps_prochandle *ph,
INF. */
bool
-amd64_linux_nat_target::low_siginfo_fixup (siginfo_t *ptrace,
- gdb_byte *inf,
+amd64_linux_nat_target::low_siginfo_fixup (siginfo_t *ptrace, gdb_byte *inf,
int direction)
{
struct gdbarch *gdbarch = get_frame_arch (get_current_frame ());
@@ -412,8 +406,7 @@ amd64_linux_nat_target::low_siginfo_fixup (siginfo_t *ptrace,
/* Is the inferior 32-bit? If so, then do fixup the siginfo
object. */
if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word == 32)
- return amd64_linux_siginfo_fixup_common (ptrace, inf, direction,
- FIXUP_32);
+ return amd64_linux_siginfo_fixup_common (ptrace, inf, direction, FIXUP_32);
/* No fixup for native x32 GDB. */
else if (gdbarch_addr_bit (gdbarch) == 32 && sizeof (void *) == 8)
return amd64_linux_siginfo_fixup_common (ptrace, inf, direction,
@@ -423,6 +416,7 @@ amd64_linux_nat_target::low_siginfo_fixup (siginfo_t *ptrace,
}
void _initialize_amd64_linux_nat ();
+
void
_initialize_amd64_linux_nat ()
{
generated by cgit v1.1 at 2024-08-05 01:39:12 +0000