From cb658d218b873a69b1f19971695f92d5db17a388 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marcin=20Ko=C5=9Bcielnicki?= Date: Fri, 30 Oct 2015 15:51:59 +0000 Subject: [PATCH] gdb/linux-record: Fix [gs]etgroups16 syscall Memory size for getgroups16 needs to be multiplied by entry count, and only needs recording if the pointer is non-NULL. setgroups16, on the other hand, doesn't write to user memory and doesn't need special handling at all. gdb/ChangeLog: * linux-record.c (record_linux_system_call): Fix [gs]etgroups16. --- gdb/ChangeLog | 4 ++++ gdb/linux-record.c | 17 ++++++++++------- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 413e12c6c4a..a6d007191a6 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2015-10-30 Marcin Kościelnicki + + * linux-record.c (record_linux_system_call): Fix [gs]etgroups16. + 2015-10-30 Marcin Kościelnicki * aarch64-linux-tdep.c (aarch64_linux_init_abi): Add size_time_t. diff --git a/gdb/linux-record.c b/gdb/linux-record.c index dbd8f14a79a..25cbda1afcf 100644 --- a/gdb/linux-record.c +++ b/gdb/linux-record.c @@ -628,16 +628,19 @@ record_linux_system_call (enum gdb_syscall syscall, case gdb_sys_getgroups16: regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest); - if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, - tdep->size_old_gid_t)) - return -1; + if (tmpulongest) + { + ULONGEST gidsetsize; + + regcache_raw_read_unsigned (regcache, tdep->arg1, + &gidsetsize); + tmpint = tdep->size_old_gid_t * (int) gidsetsize; + if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, tmpint)) + return -1; + } break; case gdb_sys_setgroups16: - regcache_raw_read_unsigned (regcache, tdep->arg2, &tmpulongest); - if (record_full_arch_list_add_mem ((CORE_ADDR) tmpulongest, - tdep->size_old_gid_t)) - return -1; break; case gdb_old_select: -- 2.30.2