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| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | NEWS | 2 | ||||
| -rw-r--r-- | sysdeps/arm/dl-tlsdesc.S | 27 |
3 files changed, 25 insertions, 10 deletions
diff --git a/ChangeLog b/ChangeLog index 5b825cd3f4..8a308891ea 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2015-10-14 Szabolcs Nagy <szabolcs.nagy@arm.com> + + [BZ #19129] + * sysdeps/arm/dl-tlsdesc.S (_dl_tlsdesc_resolve_hold): Save and restore + r0 and r1. + 2015-10-14 Namhyung Kim <namhyung@gmail.com> * manaual/argp.texi (Specifying Argp Parsers): Fix typo. diff --git a/NEWS b/NEWS index ed468ce7a6..fd33e079f6 100644 --- a/NEWS +++ b/NEWS @@ -20,7 +20,7 @@ Version 2.23 18966, 18967, 18969, 18970, 18977, 18980, 18981, 18985, 19003, 19007, 19012, 19016, 19018, 19032, 19046, 19049, 19050, 19059, 19071, 19074, 19076, 19077, 19078, 19079, 19085, 19086, 19088, 19094, 19095, 19124, - 19125 + 19125, 19129 * The obsolete header <regexp.h> has been removed. Programs that require this header must be updated to use <regex.h> instead. diff --git a/sysdeps/arm/dl-tlsdesc.S b/sysdeps/arm/dl-tlsdesc.S index e42ca68eda..33a269573e 100644 --- a/sysdeps/arm/dl-tlsdesc.S +++ b/sysdeps/arm/dl-tlsdesc.S @@ -196,21 +196,30 @@ _dl_tlsdesc_lazy_resolver: eabi_fnstart .align 2 _dl_tlsdesc_resolve_hold: - eabi_save ({r2,r3,ip,lr}) - push {r2, r3, ip, lr} - cfi_adjust_cfa_offset (16) - cfi_rel_offset (r2, 0) - cfi_rel_offset (r3, 4) - cfi_rel_offset (ip, 8) - cfi_rel_offset (lr, 12) + /* r0 is saved so its original value can be used after the call and + r1 is saved only to keep the stack aligned. (r0 points to the tls + descriptor, it is passed to _dl_tlsdesc_resolve_hold_fixup which + is a void function that may clobber r0, later r0 is used to load + the new resolver.) */ + eabi_save ({r0,r1,r2,r3,ip,lr}) + push {r0, r1, r2, r3, ip, lr} + cfi_adjust_cfa_offset (24) + cfi_rel_offset (r0, 0) + cfi_rel_offset (r1, 4) + cfi_rel_offset (r2, 8) + cfi_rel_offset (r3, 12) + cfi_rel_offset (ip, 16) + cfi_rel_offset (lr, 20) adr r1, _dl_tlsdesc_resolve_hold bl _dl_tlsdesc_resolve_hold_fixup - pop {r2, r3, ip, lr} - cfi_adjust_cfa_offset (-16) + pop {r0, r1, r2, r3, ip, lr} + cfi_adjust_cfa_offset (-24) cfi_restore (lr) cfi_restore (ip) cfi_restore (r3) cfi_restore (r2) + cfi_restore (r1) + cfi_restore (r0) sfi_breg r0, \ ldr r1, [\B, #4] BX (r1) |