From f737dfd071f12584316ef90f2c71e33c2dc9801e Mon Sep 17 00:00:00 2001 From: Carlos O'Donell Date: Fri, 11 Apr 2014 12:43:58 -0400 Subject: [PATCH] Support _r_debug for static binaries. We initialize _r_debug for static binaries to allows debug agents to treat static binaries a little more like dyanmic ones. This simplifies the work a debug agent has to do to access TLS in a static binary via libthread_db. Tested on x86_64. See: https://sourceware.org/ml/libc-alpha/2014-04/msg00183.html [BZ #16831] * csu/libc-start.c (LIBC_START_MAIN) [!SHARED]: Call _dl_debug_initialize. --- ChangeLog | 6 ++++++ NEWS | 2 +- csu/libc-start.c | 3 +++ 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 77fc36e4ec..d16da4ea10 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2014-04-14 Carlos O'Donell + + [BZ #16831] + * csu/libc-start.c (LIBC_START_MAIN) [!SHARED]: Call + _dl_debug_initialize. + 2014-04-14 Carlos O'Donell * configure.ac: Remove SELinux header check. diff --git a/NEWS b/NEWS index bbcc2232b0..a63b425691 100644 --- a/NEWS +++ b/NEWS @@ -14,7 +14,7 @@ Version 2.20 16610, 16611, 16613, 16623, 16632, 16634, 16639, 16642, 16648, 16649, 16670, 16674, 16677, 16680, 16683, 16689, 16695, 16701, 16706, 16707, 16712, 16713, 16714, 16731, 16739, 16743, 16758, 16759, 16760, 16770, - 16786, 16789, 16799, 16800, 16815, 16838. + 16786, 16789, 16799, 16800, 16815, 16831, 16838. * Running the testsuite no longer terminates as soon as a test fails. Instead, a file tests.sum (xtests.sum from "make xcheck") is generated, diff --git a/csu/libc-start.c b/csu/libc-start.c index 3b7092b359..d571a1aca9 100644 --- a/csu/libc-start.c +++ b/csu/libc-start.c @@ -264,6 +264,9 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL), GLRO(dl_debug_printf) ("\ntransferring control: %s\n\n", argv[0]); #endif +#ifndef SHARED + _dl_debug_initialize (0, LM_ID_BASE); +#endif #ifdef HAVE_CLEANUP_JMP_BUF /* Memory for the cancellation buffer. */ struct pthread_unwind_buf unwind_buf;