Switch to new version of libthread_db .dynsym patch
This commit is contained in:
Florian Weimer
parent
5b63da3fa5
commit
d3fad65ba1
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@ -0,0 +1,62 @@
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Upstream submission:
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<https://sourceware.org/pipermail/libc-alpha/2021-June/128163.html>
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Mon Jun 28 10:05:44 2021 +0200
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nptl_db: Clean up main/rtld variable handling
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Most symbols are now in libc.so.6. The "main" (exempted from
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coverage checks) status is therefore not necessary. Use
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DB_MAIN_VARIABLE for the remaining separate symbol,
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__nptl_initial_report_events. DB_RTLD_VARIABLE is now unused, so
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remove it.
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diff --git a/nptl_db/db-symbols.awk b/nptl_db/db-symbols.awk
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index 6f326cf379fc886b..ef1d91b167998d3d 100644
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--- a/nptl_db/db-symbols.awk
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+++ b/nptl_db/db-symbols.awk
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@@ -2,7 +2,6 @@
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# we've just built. It checks for all the symbols used in td_symbol_list.
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BEGIN {
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-%define DB_RTLD_VARIABLE(name) /* Nothing. */
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%define DB_MAIN_VARIABLE(name) /* Nothing. */
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%define DB_MAIN_SYMBOL(name) /* Nothing. */
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%define DB_MAIN_ARRAY_VARIABLE(name) /* Nothing. */
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diff --git a/nptl_db/structs.def b/nptl_db/structs.def
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index 6a726f207eca49a3..fb7bb9367d7c01ec 100644
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--- a/nptl_db/structs.def
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+++ b/nptl_db/structs.def
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@@ -22,10 +22,6 @@
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# define STRUCTS_DEF_DEFAULTS 1
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#endif
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-#ifndef DB_RTLD_VARIABLE
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-# define DB_RTLD_VARIABLE(name) DB_VARIABLE (name)
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-#endif
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-
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/* DB_MAIN_VARIABLE, DB_MAIN_SYMBOL, DB_MAIN_ARRAY_VARIABLE are not
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covered by the libc symbol check in db-symbols.awk. */
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#ifndef DB_MAIN_VARIABLE
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@@ -78,14 +74,14 @@ DB_STRUCT_FIELD (td_eventbuf_t, eventnum)
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DB_STRUCT_FIELD (td_eventbuf_t, eventdata)
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DB_SYMBOL (nptl_version)
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-DB_MAIN_SYMBOL (__nptl_create_event)
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-DB_MAIN_SYMBOL (__nptl_death_event)
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+DB_SYMBOL (__nptl_create_event)
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+DB_SYMBOL (__nptl_death_event)
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DB_SYMBOL (__nptl_threads_events)
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-DB_MAIN_VARIABLE (__nptl_nthreads)
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+DB_VARIABLE (__nptl_nthreads)
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DB_VARIABLE (__nptl_last_event)
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-DB_RTLD_VARIABLE (__nptl_initial_report_events)
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+DB_MAIN_VARIABLE (__nptl_initial_report_events)
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-DB_MAIN_ARRAY_VARIABLE (__pthread_keys)
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+DB_ARRAY_VARIABLE (__pthread_keys)
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DB_STRUCT (pthread_key_struct)
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DB_STRUCT_FIELD (pthread_key_struct, seq)
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DB_STRUCT_FIELD (pthread_key_struct, destr)
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@ -0,0 +1,37 @@
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Upstream submission:
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<https://sourceware.org/pipermail/libc-alpha/2021-June/128163.html>
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Mon Jun 28 10:25:21 2021 +0200
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nptl: Rename nptl_version to __nptl_version
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This prepares it for exporting as a dynamic symbol.
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diff --git a/nptl_db/structs.def b/nptl_db/structs.def
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index fb7bb9367d7c01ec..248ecf43358dd7ae 100644
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--- a/nptl_db/structs.def
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+++ b/nptl_db/structs.def
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@@ -73,7 +73,7 @@ DB_STRUCT (td_eventbuf_t)
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DB_STRUCT_FIELD (td_eventbuf_t, eventnum)
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DB_STRUCT_FIELD (td_eventbuf_t, eventdata)
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-DB_SYMBOL (nptl_version)
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+DB_SYMBOL (__nptl_version)
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DB_SYMBOL (__nptl_create_event)
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DB_SYMBOL (__nptl_death_event)
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DB_SYMBOL (__nptl_threads_events)
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diff --git a/nptl_db/td_ta_new.c b/nptl_db/td_ta_new.c
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index 501d922ea269f703..eeca29d5a0f7be9f 100644
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--- a/nptl_db/td_ta_new.c
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+++ b/nptl_db/td_ta_new.c
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@@ -39,7 +39,7 @@ td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
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LOG ("td_ta_new");
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/* Check whether the versions match. */
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- if (td_lookup (ps, SYM_nptl_version, &versaddr) != PS_OK)
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+ if (td_lookup (ps, SYM___nptl_version, &versaddr) != PS_OK)
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return TD_NOLIBTHREAD;
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if (ps_pdread (ps, versaddr, versbuf, sizeof (versbuf)) != PS_OK)
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return TD_ERR;
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@ -1,16 +1,21 @@
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Upstream submission:
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<https://sourceware.org/pipermail/libc-alpha/2021-June/128163.html>
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Thu Jun 17 19:23:00 2021 +0200
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Date: Mon Jun 28 10:24:33 2021 +0200
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nptl: Export libthread_db-used symbols under GLIBC_PRIVATE
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This allows distributions to strip debugging information from
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libc.so.6 without impacting the debugging experience.
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nptl_version had to be renamed to __nptl_version to avoid
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namespace issues.
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The commit also enhances the checks in nptl/db-symbols.awk to cover
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both the _thread_db_* descriptor symbols and the actual symbols
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themselves.
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diff --git a/nptl/Versions b/nptl/Versions
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index 62bb939d54..c03ed92848 100644
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index e4fae73c0b9fae0c..060d8d5dec2be29c 100644
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--- a/nptl/Versions
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+++ b/nptl/Versions
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@@ -403,10 +403,14 @@ libc {
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@ -28,12 +33,14 @@ index 62bb939d54..c03ed92848 100644
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__pthread_attr_copy;
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__pthread_attr_destroy;
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__pthread_attr_init;
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@@ -430,6 +434,58 @@ libc {
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@@ -430,6 +434,60 @@ libc {
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__pthread_unwind;
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__sched_fifo_max_prio;
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__sched_fifo_min_prio;
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+ _thread_db___nptl_last_event;
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+ _thread_db___nptl_nthreads;
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+ _thread_db___nptl_rtld_global;
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+ _thread_db___pthread_keys;
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+ _thread_db_const_thread_area;
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+ _thread_db_dtv_dtv;
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+ _thread_db_dtv_slotinfo_gen;
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@ -88,7 +95,7 @@ index 62bb939d54..c03ed92848 100644
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}
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diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
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index 3f017f1e26..d1b6817a81 100644
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index 3f017f1e26c0d107..d1b6817a81b21ef1 100644
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--- a/nptl/pthread_create.c
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+++ b/nptl/pthread_create.c
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@@ -43,21 +43,24 @@
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@ -122,10 +129,10 @@ index 3f017f1e26..d1b6817a81 100644
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/* This performs the initialization necessary when going from
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single-threaded to multi-threaded mode for the first time. */
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diff --git a/nptl_db/Makefile b/nptl_db/Makefile
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index ea721c1dcf..4cc51c0e7b 100644
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index 1f79c018a1f9fe19..c04aa6140acff337 100644
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--- a/nptl_db/Makefile
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+++ b/nptl_db/Makefile
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@@ -57,7 +57,7 @@ include ../Rules
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@@ -55,7 +55,7 @@ include ../Rules
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$(objpfx)db-symbols.out: $(objpfx)db-symbols.v.i \
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$(common-objpfx)libc.so
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@ -135,10 +142,32 @@ index ea721c1dcf..4cc51c0e7b 100644
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$(objpfx)db-symbols.v.i: db-symbols.awk
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diff --git a/nptl_db/db-symbols.awk b/nptl_db/db-symbols.awk
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index 6f326cf379..2033f95e38 100644
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index ef1d91b167998d3d..a9289b4686a02dd2 100644
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--- a/nptl_db/db-symbols.awk
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+++ b/nptl_db/db-symbols.awk
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@@ -13,7 +13,7 @@ BEGIN {
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@@ -1,7 +1,8 @@
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-# This script processes the output of 'readelf -W -s' on the libpthread.so
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+# This script processes the output of 'readelf -W -D -s' on the libc.so
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# we've just built. It checks for all the symbols used in td_symbol_list.
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BEGIN {
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+# This processes the _thread_db_* names.
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%define DB_MAIN_VARIABLE(name) /* Nothing. */
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%define DB_MAIN_SYMBOL(name) /* Nothing. */
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%define DB_MAIN_ARRAY_VARIABLE(name) /* Nothing. */
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@@ -9,10 +10,19 @@ BEGIN {
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%define DB_LOOKUP_NAME_TH_UNIQUE(idx, name) th_unique[STRINGIFY (name)] = 1;
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%include "db-symbols.h"
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+# And this processes the symbol names themselves.
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+%define DB_STRUCT(...) /* Nothing. */
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+%define DB_STRUCT_FIELD(...) /* Nothing. */
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+%define DB_STRUCT_FLEXIBLE_ARRAY(...) /* Nothing. */
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+%define DB_SYMBOL(name) required[STRINGIFY (name)] = 1;
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+%define DB_FUNCTION(name) required[STRINGIFY (name)] = 1;
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+%define DB_VARIABLE(name) required[STRINGIFY (name)] = 1;
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+%include "structs.def"
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+
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in_symtab = 0;
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}
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@ -147,7 +176,7 @@ index 6f326cf379..2033f95e38 100644
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NF == 0 { in_symtab=0; next }
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!in_symtab { next }
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@@ -24,6 +24,7 @@ END {
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@@ -23,6 +33,7 @@ END {
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status = 0;
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for (s in required) {
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@ -155,7 +184,7 @@ index 6f326cf379..2033f95e38 100644
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if (s in seen) print s, "ok";
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else {
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status = 1;
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@@ -33,6 +34,7 @@ END {
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@@ -32,6 +43,7 @@ END {
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any = "";
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for (s in th_unique) {
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@ -163,29 +192,3 @@ index 6f326cf379..2033f95e38 100644
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if (s in seen) {
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any = s;
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break;
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diff --git a/nptl_db/structs.def b/nptl_db/structs.def
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index 6a726f207e..e2e51acc39 100644
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--- a/nptl_db/structs.def
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+++ b/nptl_db/structs.def
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@@ -77,7 +77,7 @@ DB_STRUCT (td_eventbuf_t)
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DB_STRUCT_FIELD (td_eventbuf_t, eventnum)
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DB_STRUCT_FIELD (td_eventbuf_t, eventdata)
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-DB_SYMBOL (nptl_version)
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+DB_SYMBOL (__nptl_version)
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DB_MAIN_SYMBOL (__nptl_create_event)
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DB_MAIN_SYMBOL (__nptl_death_event)
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DB_SYMBOL (__nptl_threads_events)
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diff --git a/nptl_db/td_ta_new.c b/nptl_db/td_ta_new.c
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index 501d922ea2..eeca29d5a0 100644
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--- a/nptl_db/td_ta_new.c
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+++ b/nptl_db/td_ta_new.c
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@@ -39,7 +39,7 @@ td_ta_new (struct ps_prochandle *ps, td_thragent_t **ta)
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LOG ("td_ta_new");
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/* Check whether the versions match. */
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- if (td_lookup (ps, SYM_nptl_version, &versaddr) != PS_OK)
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+ if (td_lookup (ps, SYM___nptl_version, &versaddr) != PS_OK)
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return TD_NOLIBTHREAD;
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if (ps_pdread (ps, versaddr, versbuf, sizeof (versbuf)) != PS_OK)
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return TD_ERR;
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@ -111,7 +111,7 @@
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Summary: The GNU libc libraries
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Name: glibc
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Version: %{glibcversion}
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Release: 31%{?dist}
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Release: 32%{?dist}
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# In general, GPLv2+ is used by programs, LGPLv2+ is used for
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# libraries.
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@ -194,8 +194,10 @@ Patch34: glibc-nosymlink-1.patch
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Patch35: glibc-nosymlink-2.patch
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Patch36: glibc-nosymlink-3.patch
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Patch37: glibc-nosymlink-4.patch
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Patch38: glibc-libthread_db-dynsym.patch
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Patch39: glibc-iconvconfig-corruption.patch
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Patch40: glibc-libthread_db-dynsym-1.patch
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Patch41: glibc-libthread_db-dynsym-2.patch
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Patch42: glibc-libthread_db-dynsym-3.patch
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##############################################################################
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# Continued list of core "glibc" package information:
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@ -2213,6 +2215,9 @@ fi
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%files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
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%changelog
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* Mon Jun 28 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-32
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- Switch to new version of libthread_db .dynsym patch
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* Mon Jun 28 2021 Florian Weimer <fweimer@redhat.com> - 2.33.9000-31
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- Further .symtab adjustment: Keep all __GI_* symbols (#1975859)
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