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gdb/linux-record: Fix readdir and getdents handling

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getdents buffer size is given in bytes, not dirent entries (which have
variable size anyway).  We don't need size_dirent and size_dirent64 for
this reason.

readdir, on the other hand, needs size of old_linux_dirent, which is
a somewhat different structure.  Accordingly, rename size_dirent
to size_old_dirent.

gdb/ChangeLog:

	* aarch64-linux-tdep.c (aarch64_linux_init_abi): Remove
	size_dirent{,64}, add size_old_dirent.
	* amd64-linux-tdep.c (amd64_linux_init_abi): Remove size_dirent{,64},
	add size_old_dirent.
	(amd64_x32_linux_init_abi): Remove size_dirent{,64}, add
	size_old_dirent.
	* arm-linux-tdep.c (arm_linux_init_abi): Remove size_dirent{,64},
	add size_old_dirent.
	* i386-linux-tdep.c (i386_linux_init_abi): Remove size_dirent{,64},
	add size_old_dirent.
	* linux-record.c (record_linux_system_call): Fix handling of readdir
	and getdents{,64}.
	* linux-record.h (struct linux_record_tdep): Remove size_dirent{,64},
	add size_old_dirent.
	* ppc-linux-tdep.c (ppc_init_linux_record_tdep): Remove
	size_dirent{,64}, add size_old_dirent.
This commit is contained in:
Marcin Kościelnicki 2015-10-30 15:51:58 +00:00 committed by Pedro Alves
parent 7571f7f297
commit 72aded8673
8 changed files with 32 additions and 32 deletions
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19
gdb/ChangeLog
View File

@ -1,3 +1,22 @@
2015-10-30 Marcin Kościelnicki <koriakin@0x04.net>
* aarch64-linux-tdep.c (aarch64_linux_init_abi): Remove
size_dirent{,64}, add size_old_dirent.
* amd64-linux-tdep.c (amd64_linux_init_abi): Remove size_dirent{,64},
add size_old_dirent.
(amd64_x32_linux_init_abi): Remove size_dirent{,64}, add
size_old_dirent.
* arm-linux-tdep.c (arm_linux_init_abi): Remove size_dirent{,64},
add size_old_dirent.
* i386-linux-tdep.c (i386_linux_init_abi): Remove size_dirent{,64},
add size_old_dirent.
* linux-record.c (record_linux_system_call): Fix handling of readdir
and getdents{,64}.
* linux-record.h (struct linux_record_tdep): Remove size_dirent{,64},
add size_old_dirent.
* ppc-linux-tdep.c (ppc_init_linux_record_tdep): Remove
size_dirent{,64}, add size_old_dirent.
2015-10-30 Marcin Kościelnicki <koriakin@0x04.net>
* aarch64-linux-tdep.c (aarch64_linux_init_abi): Fix size_sigaction,

3
gdb/aarch64-linux-tdep.c
View File

@ -1009,8 +1009,7 @@ aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
aarch64_linux_record_tdep.size_old_gid_t = 2;
aarch64_linux_record_tdep.size_old_uid_t = 2;
aarch64_linux_record_tdep.size_fd_set = 128;
aarch64_linux_record_tdep.size_dirent = 280;
aarch64_linux_record_tdep.size_dirent64 = 280;
aarch64_linux_record_tdep.size_old_dirent = 280;
aarch64_linux_record_tdep.size_statfs = 120;
aarch64_linux_record_tdep.size_statfs64 = 120;
aarch64_linux_record_tdep.size_sockaddr = 16;

8
gdb/amd64-linux-tdep.c
View File

@ -1905,8 +1905,8 @@ amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
but sys_getresuid. */
amd64_linux_record_tdep.size_old_uid_t = 2;
amd64_linux_record_tdep.size_fd_set = 128;
amd64_linux_record_tdep.size_dirent = 280;
amd64_linux_record_tdep.size_dirent64 = 280;
/* ADM64 doesn't need this size because it doesn't have sys_readdir. */
amd64_linux_record_tdep.size_old_dirent = 280;
amd64_linux_record_tdep.size_statfs = 120;
amd64_linux_record_tdep.size_statfs64 = 120;
amd64_linux_record_tdep.size_sockaddr = 16;
@ -2121,8 +2121,8 @@ amd64_x32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
but sys_getresuid. */
amd64_x32_linux_record_tdep.size_old_uid_t = 2;
amd64_x32_linux_record_tdep.size_fd_set = 128;
amd64_x32_linux_record_tdep.size_dirent = 280;
amd64_x32_linux_record_tdep.size_dirent64 = 280;
/* ADM64 doesn't need this size because it doesn't have sys_readdir. */
amd64_x32_linux_record_tdep.size_old_dirent = 268;
amd64_x32_linux_record_tdep.size_statfs = 120;
amd64_x32_linux_record_tdep.size_statfs64 = 120;
amd64_x32_linux_record_tdep.size_sockaddr = 16;

3
gdb/arm-linux-tdep.c
View File

@ -1496,8 +1496,7 @@ arm_linux_init_abi (struct gdbarch_info info,
arm_linux_record_tdep.size_old_gid_t = 2;
arm_linux_record_tdep.size_old_uid_t = 2;
arm_linux_record_tdep.size_fd_set = 128;
arm_linux_record_tdep.size_dirent = 268;
arm_linux_record_tdep.size_dirent64 = 276;
arm_linux_record_tdep.size_old_dirent = 268;
arm_linux_record_tdep.size_statfs = 64;
arm_linux_record_tdep.size_statfs64 = 84;
arm_linux_record_tdep.size_sockaddr = 16;

3
gdb/i386-linux-tdep.c
View File

@ -815,8 +815,7 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
i386_linux_record_tdep.size_old_gid_t = 2;
i386_linux_record_tdep.size_old_uid_t = 2;
i386_linux_record_tdep.size_fd_set = 128;
i386_linux_record_tdep.size_dirent = 268;
i386_linux_record_tdep.size_dirent64 = 276;
i386_linux_record_tdep.size_old_dirent = 268;
i386_linux_record_tdep.size_statfs = 64;
i386_linux_record_tdep.size_statfs64 = 84;
i386_linux_record_tdep.size_sockaddr = 16;

19
gdb/linux-record.c
View File

@ -689,7 +689,7 @@ record_linux_system_call (enum gdb_syscall syscall,
case gdb_old_readdir:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_dirent))
tdep->size_old_dirent))
return -1;
break;
@ -1344,14 +1344,14 @@ Do you want to stop the program?"),
break;
case gdb_sys_getdents:
case gdb_sys_getdents64:
{
ULONGEST count;
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
regcache_raw_read_unsigned (regcache, tdep->arg3, &count);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_dirent * count))
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, count))
return -1;
}
break;
@ -1745,19 +1745,6 @@ Do you want to stop the program?"),
case gdb_sys_madvise:
break;
case gdb_sys_getdents64:
{
ULONGEST count;
regcache_raw_read_unsigned (regcache, tdep->arg2,
&tmpulongest);
regcache_raw_read_unsigned (regcache, tdep->arg3, &count);
if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest,
tdep->size_dirent64 * count))
return -1;
}
break;
case gdb_sys_fcntl64:
regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest);
if (tmpulongest == tdep->fcntl_F_GETLK64)

3
gdb/linux-record.h
View File

@ -39,8 +39,7 @@ struct linux_record_tdep
int size_old_gid_t;
int size_old_uid_t;
int size_fd_set;
int size_dirent;
int size_dirent64;
int size_old_dirent;
int size_statfs;
int size_statfs64;
int size_sockaddr;

6
gdb/ppc-linux-tdep.c
View File

@ -1432,8 +1432,7 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
record_tdep->size_old_gid_t = 4;
record_tdep->size_old_uid_t = 4;
record_tdep->size_fd_set = 128;
record_tdep->size_dirent = 280;
record_tdep->size_dirent64 = 280;
record_tdep->size_old_dirent = 280;
record_tdep->size_statfs = 120;
record_tdep->size_statfs64 = 120;
record_tdep->size_sockaddr = 16;
@ -1499,8 +1498,7 @@ ppc_init_linux_record_tdep (struct linux_record_tdep *record_tdep,
record_tdep->size_old_gid_t = 4;
record_tdep->size_old_uid_t = 4;
record_tdep->size_fd_set = 128;
record_tdep->size_dirent = 268;
record_tdep->size_dirent64 = 280;
record_tdep->size_old_dirent = 268;
record_tdep->size_statfs = 64;
record_tdep->size_statfs64 = 88;
record_tdep->size_sockaddr = 16;