For ia64 and tilegx *prefix was already set to the empty string, but arm, ppc and sh used NULL to indicate no prefix preceded the register name in the canonical assembler syntax. Consistently use the empty string in all backends since dwfl_module_register_names says: 'a prefix used in assembler syntax (such as "%" or "$", may be "")'. So users had to handle the empty string already, and might forget to handle the NULL case (like our own addrcfi testcase).

Signed-off-by: Mark Wielaard mjw@redhat.com --- backends/ChangeLog | 6 ++++++ backends/arm_regs.c | 2 +- backends/ppc_regs.c | 2 +- backends/sh_regs.c | 2 +- 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/backends/ChangeLog b/backends/ChangeLog index 646a7da..64e5efd 100644 --- a/backends/ChangeLog +++ b/backends/ChangeLog @@ -1,3 +1,9 @@ +2013-08-28 Mark Wielaard mjw@redhat.com + + * arm_regs.c (arm_register_info): Set *prefix to "". + * ppc_regs.c (ppc_register_info): Likewise. + * sh_regs.c (sh_register_info): Likewise. + 2013-08-27 Jan Kratochvil jan.kratochvil@redhat.com

* Makefile.am (ppc_SRCS, ppc64_SRCS): Add ppc_cfi.c. diff --git a/backends/arm_regs.c b/backends/arm_regs.c index 0155149..21c5ad3 100644 --- a/backends/arm_regs.c +++ b/backends/arm_regs.c @@ -48,7 +48,7 @@ arm_register_info (Ebl *ebl __attribute__ ((unused)), if (regno < 0 || regno > 320 || namelen < 5) return -1;

- *prefix = NULL; + *prefix = ""; *bits = 32; *type = DW_ATE_signed; *setname = "integer"; diff --git a/backends/ppc_regs.c b/backends/ppc_regs.c index 9c2d7e8..4b92a9a 100644 --- a/backends/ppc_regs.c +++ b/backends/ppc_regs.c @@ -48,7 +48,7 @@ ppc_register_info (Ebl *ebl __attribute__ ((unused)), if (regno < 0 || regno > 1155 || namelen < 8) return -1;

- *prefix = NULL; + *prefix = ""; *bits = ebl->machine == EM_PPC64 ? 64 : 32; *type = (regno < 32 ? DW_ATE_signed : regno < 64 ? DW_ATE_float : DW_ATE_unsigned); diff --git a/backends/sh_regs.c b/backends/sh_regs.c index 3d323a9..d433236 100644 --- a/backends/sh_regs.c +++ b/backends/sh_regs.c @@ -50,7 +50,7 @@ sh_register_info (Ebl *ebl __attribute__ ((unused)), if (regno < 0 || regno > 103 || namelen < 6) return -1;

- *prefix = NULL; + *prefix = ""; *bits = 32; *type = DW_ATE_signed;