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| author | Florian Weimer <fweimer@redhat.com> | 2019-11-12 12:41:34 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2019-11-12 13:54:30 +0100 |
| commit | cba932a5a9e91cffd7f4172d7e91f9b2efb1f84b (patch) | |
| tree | 82fb283a15d1ff654e6b54d86008917386a03da3 /nptl_db/db_info.c | |
| parent | 42b926d303e571d5f9a4e97ffdb8e05d1eabae66 (diff) | |
| download | glibc-cba932a5a9e91cffd7f4172d7e91f9b2efb1f84b.tar.gz glibc-cba932a5a9e91cffd7f4172d7e91f9b2efb1f84b.tar.xz glibc-cba932a5a9e91cffd7f4172d7e91f9b2efb1f84b.zip | |
slotinfo in struct dtv_slotinfo_list should be flexible array [BZ #25097]
GCC 10 will warn about subscribing inner length zero arrays. Use a GCC extension in csu/libc-tls.c to allocate space for the static_slotinfo variable. Adjust nptl_db so that the type description machinery does not attempt to determine the size of the flexible array member slotinfo. Change-Id: I51be146a7857186a4ede0bb40b332509487bdde8
Diffstat (limited to 'nptl_db/db_info.c')
| -rw-r--r-- | nptl_db/db_info.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nptl_db/db_info.c b/nptl_db/db_info.c index af7f754b32..40efe1a29b 100644 --- a/nptl_db/db_info.c +++ b/nptl_db/db_info.c @@ -56,6 +56,9 @@ extern bool __nptl_initial_report_events; DB_DEFINE_DESC (name, \ 8 * sizeof (obj)[0], sizeof (obj) / sizeof (obj)[0], \ offset); +/* Flexible arrays do not have a length that can be determined. */ +#define FLEXIBLE_ARRAY_DESC(name, offset, obj) \ + DB_DEFINE_DESC (name, 8 * sizeof (obj)[0], 0, offset); #if TLS_TCB_AT_TP # define dtvp header.dtv @@ -77,6 +80,9 @@ DESC (_thread_db_pthread_dtvp, #define DB_STRUCT_ARRAY_FIELD(type, field) \ ARRAY_DESC (_thread_db_##type##_##field, \ offsetof (type, field), ((type *) 0)->field) +#define DB_STRUCT_FLEXIBLE_ARRAY(type, field) \ + FLEXIBLE_ARRAY_DESC (_thread_db_##type##_##field, \ + offsetof (type, field), ((type *) 0)->field) #define DB_VARIABLE(name) DESC (_thread_db_##name, 0, name) #define DB_ARRAY_VARIABLE(name) ARRAY_DESC (_thread_db_##name, 0, name) #define DB_SYMBOL(name) /* Nothing. */ |