diff --git a/gdb/aarch64-linux-tdep.c b/gdb/aarch64-linux-tdep.c
index 4169200..57cb973 100644
--- a/gdb/aarch64-linux-tdep.c
+++ b/gdb/aarch64-linux-tdep.c
@@ -1000,8 +1000,8 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   aarch64_linux_record_tdep.size_flock = 32;
   aarch64_linux_record_tdep.size_oldold_utsname = 45;
   aarch64_linux_record_tdep.size_ustat = 32;
-  aarch64_linux_record_tdep.size_old_sigaction = 152;
-  aarch64_linux_record_tdep.size_old_sigset_t = 128;
+  aarch64_linux_record_tdep.size_old_sigaction = 32;
+  aarch64_linux_record_tdep.size_old_sigset_t = 8;
   aarch64_linux_record_tdep.size_rlimit = 16;
   aarch64_linux_record_tdep.size_rusage = 144;
   aarch64_linux_record_tdep.size_timeval = 16;
@@ -1037,8 +1037,8 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
   aarch64_linux_record_tdep.size_knfsd_fh = 132;
   aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
-  aarch64_linux_record_tdep.size_sigaction = 152;
-  aarch64_linux_record_tdep.size_sigset_t = 128;
+  aarch64_linux_record_tdep.size_sigaction = 32;
+  aarch64_linux_record_tdep.size_sigset_t = 8;
   aarch64_linux_record_tdep.size_siginfo_t = 128;
   aarch64_linux_record_tdep.size_cap_user_data_t = 8;
   aarch64_linux_record_tdep.size_stack_t = 24;
diff --git a/gdb/amd64-linux-tdep.c b/gdb/amd64-linux-tdep.c
index 59c318d..3bca3c8 100644
--- a/gdb/amd64-linux-tdep.c
+++ b/gdb/amd64-linux-tdep.c
@@ -1890,10 +1890,10 @@ amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   amd64_linux_record_tdep.size_ustat = 32;
   /* ADM64 doesn't need this size because it doesn't have sys_sigaction
      but sys_rt_sigaction.  */
-  amd64_linux_record_tdep.size_old_sigaction = 152;
+  amd64_linux_record_tdep.size_old_sigaction = 32;
   /* ADM64 doesn't need this size because it doesn't have sys_sigpending
      but sys_rt_sigpending.  */
-  amd64_linux_record_tdep.size_old_sigset_t = 128;
+  amd64_linux_record_tdep.size_old_sigset_t = 8;
   amd64_linux_record_tdep.size_rlimit = 16;
   amd64_linux_record_tdep.size_rusage = 144;
   amd64_linux_record_tdep.size_timeval = 16;
@@ -1933,8 +1933,8 @@ amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   amd64_linux_record_tdep.size_NFS_FHSIZE = 32;
   amd64_linux_record_tdep.size_knfsd_fh = 132;
   amd64_linux_record_tdep.size_TASK_COMM_LEN = 16;
-  amd64_linux_record_tdep.size_sigaction = 152;
-  amd64_linux_record_tdep.size_sigset_t = 128;
+  amd64_linux_record_tdep.size_sigaction = 32;
+  amd64_linux_record_tdep.size_sigset_t = 8;
   amd64_linux_record_tdep.size_siginfo_t = 128;
   amd64_linux_record_tdep.size_cap_user_data_t = 8;
   amd64_linux_record_tdep.size_stack_t = 24;
@@ -2106,10 +2106,10 @@ amd64_x32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   amd64_x32_linux_record_tdep.size_ustat = 32;
   /* ADM64 doesn't need this size because it doesn't have sys_sigaction
      but sys_rt_sigaction.  */
-  amd64_x32_linux_record_tdep.size_old_sigaction = 152;
+  amd64_x32_linux_record_tdep.size_old_sigaction = 16;
   /* ADM64 doesn't need this size because it doesn't have sys_sigpending
      but sys_rt_sigpending.  */
-  amd64_x32_linux_record_tdep.size_old_sigset_t = 128;
+  amd64_x32_linux_record_tdep.size_old_sigset_t = 4;
   amd64_x32_linux_record_tdep.size_rlimit = 16;
   amd64_x32_linux_record_tdep.size_rusage = 144;
   amd64_x32_linux_record_tdep.size_timeval = 16;
@@ -2149,8 +2149,8 @@ amd64_x32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   amd64_x32_linux_record_tdep.size_NFS_FHSIZE = 32;
   amd64_x32_linux_record_tdep.size_knfsd_fh = 132;
   amd64_x32_linux_record_tdep.size_TASK_COMM_LEN = 16;
-  amd64_x32_linux_record_tdep.size_sigaction = 152;
-  amd64_x32_linux_record_tdep.size_sigset_t = 128;
+  amd64_x32_linux_record_tdep.size_sigaction = 20;
+  amd64_x32_linux_record_tdep.size_sigset_t = 8;
   amd64_x32_linux_record_tdep.size_siginfo_t = 128;
   amd64_x32_linux_record_tdep.size_cap_user_data_t = 8;
   amd64_x32_linux_record_tdep.size_stack_t = 24;
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index 940f01f..88d818d 100644
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -1487,8 +1487,8 @@ arm_linux_init_abi (struct gdbarch_info info,
   arm_linux_record_tdep.size_flock = 16;
   arm_linux_record_tdep.size_oldold_utsname = 45;
   arm_linux_record_tdep.size_ustat = 20;
-  arm_linux_record_tdep.size_old_sigaction = 140;
-  arm_linux_record_tdep.size_old_sigset_t = 128;
+  arm_linux_record_tdep.size_old_sigaction = 16;
+  arm_linux_record_tdep.size_old_sigset_t = 4;
   arm_linux_record_tdep.size_rlimit = 8;
   arm_linux_record_tdep.size_rusage = 72;
   arm_linux_record_tdep.size_timeval = 8;
@@ -1524,7 +1524,7 @@ arm_linux_init_abi (struct gdbarch_info info,
   arm_linux_record_tdep.size_NFS_FHSIZE = 32;
   arm_linux_record_tdep.size_knfsd_fh = 132;
   arm_linux_record_tdep.size_TASK_COMM_LEN = 16;
-  arm_linux_record_tdep.size_sigaction = 140;
+  arm_linux_record_tdep.size_sigaction = 20;
   arm_linux_record_tdep.size_sigset_t = 8;
   arm_linux_record_tdep.size_siginfo_t = 128;
   arm_linux_record_tdep.size_cap_user_data_t = 12;
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c
index af9c28a..0bf2cdc 100644
--- a/gdb/i386-linux-tdep.c
+++ b/gdb/i386-linux-tdep.c
@@ -806,8 +806,8 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   i386_linux_record_tdep.size_flock = 16;
   i386_linux_record_tdep.size_oldold_utsname = 45;
   i386_linux_record_tdep.size_ustat = 20;
-  i386_linux_record_tdep.size_old_sigaction = 140;
-  i386_linux_record_tdep.size_old_sigset_t = 128;
+  i386_linux_record_tdep.size_old_sigaction = 16;
+  i386_linux_record_tdep.size_old_sigset_t = 4;
   i386_linux_record_tdep.size_rlimit = 8;
   i386_linux_record_tdep.size_rusage = 72;
   i386_linux_record_tdep.size_timeval = 8;
@@ -843,7 +843,7 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   i386_linux_record_tdep.size_NFS_FHSIZE = 32;
   i386_linux_record_tdep.size_knfsd_fh = 132;
   i386_linux_record_tdep.size_TASK_COMM_LEN = 16;
-  i386_linux_record_tdep.size_sigaction = 140;
+  i386_linux_record_tdep.size_sigaction = 20;
   i386_linux_record_tdep.size_sigset_t = 8;
   i386_linux_record_tdep.size_siginfo_t = 128;
   i386_linux_record_tdep.size_cap_user_data_t = 12;
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index 79d115e..896f410 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -1423,8 +1423,8 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
       record_tdep->size_flock = 32;
       record_tdep->size_oldold_utsname = 45;
       record_tdep->size_ustat = 32;
-      record_tdep->size_old_sigaction = 152;
-      record_tdep->size_old_sigset_t = 128;
+      record_tdep->size_old_sigaction = 32;
+      record_tdep->size_old_sigset_t = 8;
       record_tdep->size_rlimit = 16;
       record_tdep->size_rusage = 144;
       record_tdep->size_timeval = 16;
@@ -1457,8 +1457,8 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
       record_tdep->size_NFS_FHSIZE = 32;
       record_tdep->size_knfsd_fh = 132;
       record_tdep->size_TASK_COMM_LEN = 32;
-      record_tdep->size_sigaction = 152;
-      record_tdep->size_sigset_t = 128;
+      record_tdep->size_sigaction = 32;
+      record_tdep->size_sigset_t = 8;
       record_tdep->size_siginfo_t = 128;
       record_tdep->size_cap_user_data_t = 8;
       record_tdep->size_stack_t = 24;
@@ -1490,8 +1490,8 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
       record_tdep->size_flock = 16;
       record_tdep->size_oldold_utsname = 45;
       record_tdep->size_ustat = 20;
-      record_tdep->size_old_sigaction = 152;
-      record_tdep->size_old_sigset_t = 128;
+      record_tdep->size_old_sigaction = 16;
+      record_tdep->size_old_sigset_t = 4;
       record_tdep->size_rlimit = 8;
       record_tdep->size_rusage = 72;
       record_tdep->size_timeval = 8;
@@ -1524,8 +1524,8 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
       record_tdep->size_NFS_FHSIZE = 32;
       record_tdep->size_knfsd_fh = 132;
       record_tdep->size_TASK_COMM_LEN = 32;
-      record_tdep->size_sigaction = 140;
-      record_tdep->size_sigset_t = 128;
+      record_tdep->size_sigaction = 20;
+      record_tdep->size_sigset_t = 8;
       record_tdep->size_siginfo_t = 128;
       record_tdep->size_cap_user_data_t = 4;
       record_tdep->size_stack_t = 12;
