Bug 303624 - segmentation fault on Android 4.1 (e.g. on android emulator or Galaxy Nexus OMAP)
Summary: segmentation fault on Android 4.1 (e.g. on android emulator or Galaxy Nexus O...
Status: RESOLVED FIXED
Alias: None
Product: valgrind
Classification: Developer tools
Component: general (show other bugs)
Version: unspecified
Platform: Android Android 4.x
: NOR critical
Target Milestone: ---
Assignee: Julian Seward
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-07-16 18:38 UTC by Zac Bowling
Modified: 2012-11-06 22:48 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
x86 patch (697 bytes, patch)
2012-11-05 17:24 UTC, Dragos Tatulea
Details

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Description Zac Bowling 2012-07-16 18:38:53 UTC
On the Galaxy Nexus (an OMAP chipset) you receive a segfault right at startup on all processes. 

It appears not be able to read the ELF data after _start. 

Reproducible: Always




Here is valgring with -v -v -d -d. 

/data/local/Inst/bin/valgrind -v -v -d -d ls              
--9213:1:debuglog DebugLog system started by Stage 1, level 2 logging requested
--9213:1:launcher no tool requested, defaulting to 'memcheck'
--9213:2:launcher   selecting platform for 'ls'
--9213:2:launcher   selecting platform for '/system/bin/ls'
--9213:2:launcher   opened '/system/bin/ls'
--9213:2:launcher   read 4096 bytes from '/system/bin/ls'
--9213:2:launcher   selected platform 'arm-linux'
--9213:1:launcher selected platform 'arm-linux'
--9213:1:launcher launching /data/local/Inst/lib/valgrind/memcheck-arm-linux
--9213:1:debuglog DebugLog system started by Stage 2 (main), level 2 logging requested
--9213:1:main     Welcome to Valgrind version 3.8.0.SVN debug logging
--9213:1:main     Checking current stack is plausible
--9213:1:main     Checking initial stack was noted
--9213:1:main     Starting the address space manager
--9213:2:aspacem            sp_at_startup = 0x00bee3cb50 (supplied)
--9213:2:aspacem                  minAddr = 0x0004000000 (computed)
--9213:2:aspacem                  maxAddr = 0x00bee3bfff (computed)
--9213:2:aspacem                   cStart = 0x0004000000 (computed)
--9213:2:aspacem                   vStart = 0x006171e000 (computed)
--9213:2:aspacem    suggested_clstack_top = 0x00bde3cfff (computed)
--9213:2:aspacem    <<< SHOW_SEGMENTS: Initial layout (5 segments, 0 segnames)
--9213:2:aspacem      0: RSVN 0000000000-0003ffffff     64m ----- SmFixed
--9213:2:aspacem      1:      0004000000-006171dfff   1495m
--9213:2:aspacem      2: RSVN 006171e000-006171efff    4096 ----- SmFixed
--9213:2:aspacem      3:      006171f000-00bee3bfff   1495m
--9213:2:aspacem      4: RSVN 00bee3c000-00ffffffff   1041m ----- SmFixed
--9213:2:aspacem    >>>
--9213:2:aspacem    Reading /proc/self/maps
--9213:2:aspacem    <<< SHOW_SEGMENTS: With contents of /proc/self/maps (12 segments, 1 segnames)
--9213:2:aspacem    ( 0) /data/local/Inst/lib/valgrind/memcheck-arm-linux
--9213:2:aspacem      0: RSVN 0000000000-0003ffffff     64m ----- SmFixed
--9213:2:aspacem      1:      0004000000-0037ffffff    832m
--9213:2:aspacem      2: FILE 0038000000-0038330fff 3346432 r-x-- d=0x10304 i=667991  o=4096    (0)
--9213:2:aspacem      3: FILE 0038331000-0038334fff   16384 rw--- d=0x10304 i=667991  o=3350528 (0)
--9213:2:aspacem      4: ANON 0038335000-0038e06fff     10m rw---
--9213:2:aspacem      5:      0038e07000-006171dfff    649m
--9213:2:aspacem      6: RSVN 006171e000-006171efff    4096 ----- SmFixed
--9213:2:aspacem      7:      006171f000-00bee1bfff   1494m
--9213:2:aspacem      8: ANON 00bee1c000-00bee3cfff  135168 rw---
--9213:2:aspacem      9: RSVN 00bee3d000-00fffeffff   1041m ----- SmFixed
--9213:2:aspacem     10: anon 00ffff0000-00ffff0fff    4096 r-x--
--9213:2:aspacem     11: RSVN 00ffff1000-00ffffffff   61440 ----- SmFixed
--9213:2:aspacem    >>>
--9213:1:main     Address space manager is running
--9213:1:main     Starting the dynamic memory manager
--9213:1:mallocfr newSuperblock at 0x6171F000 (pszB 4194288)  owner VALGRIND/tool
--9213:1:mallocfr deferred_reclaimSuperblock at 0x6171F000 (pszB 4194288)  (prev 0x0) owner VALGRIND/tool
--9213:1:main     Dynamic memory manager is running
--9213:1:main     Initialise m_debuginfo
--9213:1:main     VG_(libdir) = /data/local/Inst/lib/valgrind
--9213:1:main     Getting launcher's name ...
--9213:1:main     ... /data/local/Inst/bin/valgrind
--9213:1:main     Get hardware capabilities ...
--9213:1:machine  ARMv7 VFP 1 VFP2 1 VFP3 1 NEON 1
--9213:1:main     ... arch = ARM, hwcaps = ARMv7-vfp-neon
--9213:1:main     Getting the working directory at startup
--9213:1:main     ... /
--9213:1:main     Split up command line
--9213:1:main     (early_) Process Valgrind's command line options
--9213:1:main     Create initial image
--9213:1:initimg  Loading client
--9213:1:initimg  Setup client env
--9213:2:initimg    preload_string:
--9213:2:initimg      "/data/local/Inst/lib/valgrind/vgpreload_core-arm-linux.so:/data/local/Inst/lib/valgrind/vgpreload_memcheck-arm-linux.so"
--9213:1:initimg  Setup client stack: size will be 8388608
--9213:2:initimg    ARM has-neon from-auxv: YES
--9213:2:initimg    ARM has-tls from-auxv: YES
--9213:2:initimg    Client info: initial_IP=0x40036E0 initial_TOC=0x0 brk_base=0x128000
--9213:2:initimg    Client info: initial_SP=0xBDE3CB60 max_stack_size=8388608
--9213:1:initimg  Setup client data (brk) segment
--9213:1:main     Setup file descriptors
--9213:1:main     Create fake /proc/<pid>/cmdline
--9213:1:main     Initialise the tool part 1 (pre_clo_init)
--9213:1:mallocfr deferred_reclaimSuperblock NULL (prev 0x6171F000) owner VALGRIND/tool
--9213:1:mallocfr newSuperblock at 0x61B1F000 (pszB 1048560)  owner VALGRIND/exectxt
--9213:1:main     Print help and quit, if requested
--9213:1:main     (main_) Process Valgrind's command line options, setup logging
--9213:1:mallocfr newSuperblock at 0x61C1F000 (pszB 1048560)  owner VALGRIND/core
--9213:1:main     Print the preamble...
==9213== Memcheck, a memory error detector
==9213== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==9213== Using Valgrind-3.8.0.SVN and LibVEX; rerun with -h for copyright info
==9213== Command: ls
==9213== 
--9213-- Valgrind options:
--9213--    -v
--9213--    -v
--9213--    -d
--9213--    -d
--9213-- Contents of /proc/version:
--9213--   Linux version 3.0.31-g9c526da (zbowling@Zacs-MacBook-Pro.local) (gcc version 4.4.3 (GCC) ) #5 SMP PREEMPT Sun Jul 15 00:56:21 PDT 2012
--9213-- Arch and hwcaps: ARM, ARMv7-vfp-neon
--9213-- Page sizes: currently 4096, max supported 4096
--9213-- Valgrind library directory: /data/local/Inst/lib/valgrind
--9213:1:main     ...finished the preamble
--9213:1:main     Initialise the tool part 2 (post_clo_init)
--9213:1:main     Initialise TT/TC
--9213-- TT/TC: VG_(init_tt_tc) (startup of code management)
--9213-- TT/TC: cache: 8 sectors of 27597024 bytes each = 220776192 total
--9213-- TT/TC: table: 524168 total entries, max occupancy 340704 (65%)
--9213:2:transtab   cache: 8 sectors of 27597024 bytes each = 220776192 total
--9213:2:transtab   table: 524168 total entries, max occupancy 340704 (65%)
--9213:1:main     Initialise redirects
--9213:1:mallocfr newSuperblock at 0x61D9A000 (pszB 1048560)  owner VALGRIND/dinfo
--9213:1:main     Load initial debug info
--9213-- Reading syms from /system/bin/toolbox
--9213--    svma 0x0000004050, avma 0x000010c050
--9213--   Considering /system/bin/toolbox ..
--9213--   .. CRC mismatch (computed 510abd5b wanted 59695f18)
--9213--   Using debuginfo from /sdcard/symbols/system/bin/toolbox
--9213-- Reading syms from /system/bin/linker
--9213--    svma 0x00000036e0, avma 0x00040036e0
--9213--   Considering /system/bin/linker ..
--9213--   .. CRC mismatch (computed 939136ba wanted f8765ce7)
--9213--   Using debuginfo from /sdcard/symbols/system/bin/linker
--9213-- Reading syms from /data/local/Inst/lib/valgrind/memcheck-arm-linux
--9213--    svma 0x0038000000, avma 0x0038000000
--9213--    object doesn't have a dynamic symbol table
--9213:1:mallocfr newSuperblock at 0x6275F000 (pszB 1048560)  owner VALGRIND/dinfo
--9213:1:mallocfr newSuperblock at 0x6285F000 (pszB 1048560)  owner VALGRIND/dinfo
--9213:1:mallocfr newSuperblock at 0x6295F000 (pszB 1048560)  owner VALGRIND/dinfo
--9213:1:mallocfr newSuperblock at 0x62A5F000 (pszB 2052080) unsplittable owner VALGRIND/dinfo
--9213:1:mallocfr deferred_reclaimSuperblock at 0x6295F000 (pszB 1048560)  (prev 0x0) owner VALGRIND/dinfo
--9213:1:mallocfr deferred_reclaimSuperblock NULL (prev 0x6295F000) owner VALGRIND/dinfo
--9213:1:mallocfr reclaimSuperblock at 0x6295F000 (pszB 1048560)  owner VALGRIND/dinfo
--9213:1:mallocfr newSuperblock at 0x62C54000 (pszB 4100080) unsplittable owner VALGRIND/dinfo
--9213:1:mallocfr reclaimSuperblock at 0x62A5F000 (pszB 2052080) unsplittable owner VALGRIND/dinfo
--9213:1:mallocfr newSuperblock at 0x61E9A000 (pszB 3178480) unsplittable owner VALGRIND/dinfo
--9213:1:mallocfr reclaimSuperblock at 0x62C54000 (pszB 4100080) unsplittable owner VALGRIND/dinfo
--9213:1:redir    transfer ownership V -> C of 0x38055000 .. 0x38055fff
--9213:1:main     Initialise scheduler (phase 1)
--9213:1:sched    sched_init_phase1
--9213-- Scheduler: using generic scheduler lock implementation.
--9213:1:main     Tell tool about initial permissions
--9213:2:main       tell tool about 0000108000-000011ffff r-x
--9213:2:main       tell tool about 0000120000-0000122fff rw-
--9213:2:main       tell tool about 0000123000-0000127fff rw-
--9213:2:main       tell tool about 0004000000-0004012fff r-x
--9213:2:main       tell tool about 0004013000-0004014fff rw-
--9213:2:main       tell tool about 0004015000-0004020fff rw-
--9213:2:main       tell tool about 0004021000-0004021fff rwx
--9213:2:main       tell tool about 0038055000-0038055fff r-x
--9213:2:main       tell tool about 00bde3c000-00bde3cfff rwx
--9213:2:main       tell tool about 00ffff0000-00ffff0fff r-x
--9213:2:main       mark stack inaccessible 00bde3c000-00bde3cb5f
--9213:1:main     Initialise scheduler (phase 2)
--9213:1:sched    sched_init_phase2: tid_main=1, cls_end=0xbde3cfff, cls_sz=8388608
--9213:1:main     Finalise initial image
--9213:1:main     Initialise signal management
--9213:1:main     Load suppressions
--9213-- Reading suppressions file: /data/local/Inst/lib/valgrind/default.supp
--9213:2:stacks     register 0xBDE3C000-0xBDE3CFFF as stack 0
--9213:1:main     
--9213:1:main     
--9213:1:aspacem  <<< SHOW_SEGMENTS: Memory layout at client startup (29 segments, 4 segnames)
--9213:1:aspacem  ( 0) /data/local/Inst/lib/valgrind/memcheck-arm-linux
--9213:1:aspacem  ( 1) /system/bin/toolbox
--9213:1:aspacem  ( 2) /system/bin/linker
--9213:1:aspacem    0: RSVN 0000000000-0000107fff 1081344 ----- SmFixed
--9213:1:aspacem    1: file 0000108000-000011ffff   98304 r-x-- d=0x10302 i=232     o=0       (1)
--9213:1:aspacem    2: file 0000120000-0000122fff   12288 rw--- d=0x10302 i=232     o=94208   (1)
--9213:1:aspacem    3: anon 0000123000-0000127fff   20480 rw---
--9213:1:aspacem    4: RSVN 0000128000-0003ffffff     62m ----- SmFixed
--9213:1:aspacem    5: file 0004000000-0004012fff   77824 r-x-- d=0x10302 i=149     o=0       (2)
--9213:1:aspacem    6: file 0004013000-0004014fff    8192 rw--- d=0x10302 i=149     o=73728   (2)
--9213:1:aspacem    7: anon 0004015000-0004020fff   49152 rw---
--9213:1:aspacem    8: anon 0004021000-0004021fff    4096 rwx--
--9213:1:aspacem    9: RSVN 0004022000-0004820fff 8384512 ----- SmLower
--9213:1:aspacem   10:      0004821000-0037ffffff    823m
--9213:1:aspacem   11: FILE 0038000000-0038054fff  348160 r-x-- d=0x10304 i=667991  o=4096    (0)
--9213:1:aspacem   12: file 0038055000-0038055fff    4096 r-x-- d=0x10304 i=667991  o=352256  (0)
--9213:1:aspacem   13: FILE 0038056000-0038330fff 2994176 r-x-- d=0x10304 i=667991  o=356352  (0)
--9213:1:aspacem   14: FILE 0038331000-0038334fff   16384 rw--- d=0x10304 i=667991  o=3350528 (0)
--9213:1:aspacem   15: ANON 0038335000-0038e06fff     10m rw---
--9213:1:aspacem   16:      0038e07000-006171dfff    649m
--9213:1:aspacem   17: RSVN 006171e000-006171efff    4096 ----- SmFixed
--9213:1:aspacem   18: ANON 006171f000-00621bdfff     10m rwx--
--9213:1:aspacem   19:      00621be000-006275efff 5902336
--9213:1:aspacem   20: ANON 006275f000-006295efff 2097152 rwx--
--9213:1:aspacem   21:      006295f000-00bd63cfff   1452m
--9213:1:aspacem   22: RSVN 00bd63d000-00bde3bfff 8384512 ----- SmUpper
--9213:1:aspacem   23: anon 00bde3c000-00bde3cfff    4096 rwx--
--9213:1:aspacem   24:      00bde3d000-00bee1bfff     15m
--9213:1:aspacem   25: ANON 00bee1c000-00bee3cfff  135168 rw---
--9213:1:aspacem   26: RSVN 00bee3d000-00fffeffff   1041m ----- SmFixed
--9213:1:aspacem   27: anon 00ffff0000-00ffff0fff    4096 r-x--
--9213:1:aspacem   28: RSVN 00ffff1000-00ffffffff   61440 ----- SmFixed
--9213:1:aspacem  >>>
--9213:1:main     
--9213:1:main     
--9213:1:main     Running thread 1
--9213:1:syswrap- entering VG_(main_thread_wrapper_NORETURN)
--9213:1:aspacem  allocated thread stack at 0x621be000 size 1064960
--9213:1:syswrap- run_a_thread_NORETURN(tid=1): pre-thread_wrapper
--9213:1:syswrap- thread_wrapper(tid=1): entry
--9213:1:transtab allocate sector 0
--9213:1:mallocfr newSuperblock at 0x622C2000 (pszB   65520)  owner VALGRIND/ttaux
--9213-- TT/TC: initialise sector 0
--9213:1:mallocfr newSuperblock at 0x622D2000 (pszB   65520)  owner VALGRIND/errors
==9213== Invalid read of size 4
--9213:1:mallocfr newSuperblock at 0x622E2000 (pszB   65520)  owner VALGRIND/demangle
--9213:1:mallocfr deferred_reclaimSuperblock at 0x622E2000 (pszB   65520)  (prev 0x0) owner VALGRIND/demangle
==9213==    at 0x4005180: __dl___linker_init (linker.c:2265)
==9213==    by 0x40036EB: _start (begin.S:37)
==9213==  Address 0x1c is not stack'd, malloc'd or (recently) free'd
==9213== 
--9213:1:gdbsrv   VG core calling VG_(gdbserver_report_signal) vki_nr 11 SIGSEGV gdb_nr 11 SIGSEGV tid 1
--9213:1:gdbsrv   not connected => pass
==9213== 
==9213== Process terminating with default action of signal 11 (SIGSEGV)
==9213==  Access not within mapped region at address 0x1C
--9213:1:mallocfr deferred_reclaimSuperblock at 0x622E2000 (pszB   65520)  (prev 0x622E2000) owner VALGRIND/demangle
==9213==    at 0x4005180: __dl___linker_init (linker.c:2265)
==9213==    by 0x40036EB: _start (begin.S:37)
==9213==  If you believe this happened as a result of a stack
==9213==  overflow in your program's main thread (unlikely but
==9213==  possible), you can try to increase the size of the
==9213==  main thread stack using the --main-stacksize= flag.
==9213==  The main thread stack size used in this run was 8388608.
--9213:1:syswrap- thread_wrapper(tid=1): exit
--9213:1:syswrap- run_a_thread_NORETURN(tid=1): post-thread_wrapper
--9213:1:syswrap- run_a_thread_NORETURN(tid=1): last one standing
--9213:1:main     entering VG_(shutdown_actions_NORETURN)
--9213:1:aspacem  <<< SHOW_SEGMENTS: Memory layout at client shutdown (33 segments, 4 segnames)
--9213:1:aspacem  ( 0) /data/local/Inst/lib/valgrind/memcheck-arm-linux
--9213:1:aspacem  ( 1) /system/bin/toolbox
--9213:1:aspacem  ( 2) /system/bin/linker
--9213:1:aspacem    0: RSVN 0000000000-0000107fff 1081344 ----- SmFixed
--9213:1:aspacem    1: file 0000108000-000011ffff   98304 r-x-- d=0x10302 i=232     o=0       (1)
--9213:1:aspacem    2: file 0000120000-0000122fff   12288 rw--- d=0x10302 i=232     o=94208   (1)
--9213:1:aspacem    3: anon 0000123000-0000127fff   20480 rw---
--9213:1:aspacem    4: RSVN 0000128000-0003ffffff     62m ----- SmFixed
--9213:1:aspacem    5: file 0004000000-0004012fff   77824 r-xT- d=0x10302 i=149     o=0       (2)
--9213:1:aspacem    6: file 0004013000-0004014fff    8192 rw--- d=0x10302 i=149     o=73728   (2)
--9213:1:aspacem    7: anon 0004015000-0004020fff   49152 rw---
--9213:1:aspacem    8: anon 0004021000-0004021fff    4096 rwx--
--9213:1:aspacem    9: RSVN 0004022000-0004820fff 8384512 ----- SmLower
--9213:1:aspacem   10:      0004821000-0037ffffff    823m
--9213:1:aspacem   11: FILE 0038000000-0038054fff  348160 r-x-- d=0x10304 i=667991  o=4096    (0)
--9213:1:aspacem   12: file 0038055000-0038055fff    4096 r-x-- d=0x10304 i=667991  o=352256  (0)
--9213:1:aspacem   13: FILE 0038056000-0038330fff 2994176 r-x-- d=0x10304 i=667991  o=356352  (0)
--9213:1:aspacem   14: FILE 0038331000-0038334fff   16384 rw--- d=0x10304 i=667991  o=3350528 (0)
--9213:1:aspacem   15: ANON 0038335000-0038e06fff     10m rw---
--9213:1:aspacem   16:      0038e07000-006171dfff    649m
--9213:1:aspacem   17: RSVN 006171e000-006171efff    4096 ----- SmFixed
--9213:1:aspacem   18: ANON 006171f000-00621bdfff     10m rwx--
--9213:1:aspacem   19: ANON 00621be000-00621bffff    8192 -----
--9213:1:aspacem   20: ANON 00621c0000-00622bffff 1048576 rwx--
--9213:1:aspacem   21: ANON 00622c0000-00622c1fff    8192 -----
--9213:1:aspacem   22: ANON 00622c2000-00622f1fff  196608 rwx--
--9213:1:aspacem   23:      00622f2000-006275efff 4640768
--9213:1:aspacem   24: ANON 006275f000-0064eb0fff     39m rwx--
--9213:1:aspacem   25:      0064eb1000-00bd63cfff   1415m
--9213:1:aspacem   26: RSVN 00bd63d000-00bde3bfff 8384512 ----- SmUpper
--9213:1:aspacem   27: anon 00bde3c000-00bde3cfff    4096 rwx--
--9213:1:aspacem   28:      00bde3d000-00bee1bfff     15m
--9213:1:aspacem   29: ANON 00bee1c000-00bee3cfff  135168 rw---
--9213:1:aspacem   30: RSVN 00bee3d000-00fffeffff   1041m ----- SmFixed
--9213:1:aspacem   31: anon 00ffff0000-00ffff0fff    4096 r-x--
--9213:1:aspacem   32: RSVN 00ffff1000-00ffffffff   61440 ----- SmFixed
--9213:1:aspacem  >>>
==9213== 
==9213== HEAP SUMMARY:
==9213==     in use at exit: 0 bytes in 0 blocks
==9213==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==9213== 
==9213== All heap blocks were freed -- no leaks are possible
==9213== 
==9213== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
==9213== 
==9213== 1 errors in context 1 of 1:
==9213== Invalid read of size 4
--9213:1:mallocfr deferred_reclaimSuperblock at 0x622E2000 (pszB   65520)  (prev 0x622E2000) owner VALGRIND/demangle
==9213==    at 0x4005180: __dl___linker_init (linker.c:2265)
==9213==    by 0x40036EB: _start (begin.S:37)
==9213==  Address 0x1c is not stack'd, malloc'd or (recently) free'd
==9213== 
==9213== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
--9213:1:gdbsrv   VG_(gdbserver) called to terminate, nothing to terminate
--9213:1:core_os  VG_(terminate_NORETURN)(tid=1)
Segmentation fault 


It appears to crash in bionic's linker.c when executing:
Elf32_Phdr *phdr = (Elf32_Phdr *)((unsigned char *) linker_addr + elf_hdr->e_phoff);

Here is the source:
/*
 * This is the entry point for the linker, called from begin.S. This
 * method is responsible for fixing the linker's own relocations, and
 * then calling __linker_init_post_relocation().
 *
 * Because this method is called before the linker has fixed it's own
 * relocations, any attempt to reference an extern variable, extern
 * function, or other GOT reference will generate a segfault.
 */
unsigned __linker_init(unsigned **elfdata) {
    unsigned linker_addr = find_linker_base(elfdata);
    Elf32_Ehdr *elf_hdr = (Elf32_Ehdr *) linker_addr;
    Elf32_Phdr *phdr = 
        (Elf32_Phdr *)((unsigned char *) linker_addr + elf_hdr->e_phoff);

    soinfo linker_so;
    memset(&linker_so, 0, sizeof(soinfo));

    linker_so.base = linker_addr;
    linker_so.dynamic = (unsigned *) -1;


I'm not sure if this is a 4.1.1 or that the galaxy nexus boards don't work with Valgrind at all yet.
Comment 1 Philippe Waroquiers 2012-07-16 20:32:46 UTC
(In reply to comment #0)
> I'm not sure if this is a 4.1.1 or that the galaxy nexus boards don't work
> with Valgrind at all yet.
Same problem on Android emulator 4.1
Comment 2 Philippe Waroquiers 2012-07-18 23:04:40 UTC
fixed (by a temporary bypass) in revision 12758.

The temporary bypass is to not AT_IGNORE the AT_BASE on android.
The consequence of this temporary bypass might be that
breakpoints in shared libs are placed at wrong addresses.
(feedback on this is welcome).

As follow-up, need to understand better the interaction between GDB, AT_BASE and Valgrind
GDBSERVER.
Comment 3 Dragos Tatulea 2012-11-05 17:24:25 UTC
Created attachment 75029 [details]
x86 patch

Attached the patch for x86.
Comment 4 Philippe Waroquiers 2012-11-06 22:48:10 UTC
(In reply to comment #3)
> Created attachment 75029 [details]
> x86 patch
> 
> Attached the patch for x86.
Committed revision 13105.

Thanks for the patch.