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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2014-02-04 18:41:36 +0100 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2014-02-04 18:41:36 +0100 |
| commit | 52f548e41f085550d7740c350c1c8a239532af77 (patch) | |
| tree | 179f74e2933f43f6e02eb534a4f2c0c271167b1a /gdb | |
| parent | d4094b6a8883ae481c7644c5a210254efe92e9ad (diff) | |
| download | gdb-52f548e41f085550d7740c350c1c8a239532af77.zip gdb-52f548e41f085550d7740c350c1c8a239532af77.tar.gz gdb-52f548e41f085550d7740c350c1c8a239532af77.tar.bz2 | |
PowerPC64 ELFv2 ABI: stack frame layout changes
This implementes another change in ELFv2: the stack frame no longer
contains the reserved double words for linker and compiler use
(which weren't really used for much of anything anyway). This
affects placement of on-stack parameters in inferior calls.
gdb/ChangeLog:
* ppc-sysv-tdep.c (ppc64_sysv_abi_push_dummy_call): Use correct
offset to the stack parameter list for the ELFv2 ABI.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/ppc-sysv-tdep.c | 10 |
2 files changed, 12 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 795e23f..a479346 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2014-02-04 Ulrich Weigand <uweigand@de.ibm.com> + * ppc-sysv-tdep.c (ppc64_sysv_abi_push_dummy_call): Use correct + offset to the stack parameter list for the ELFv2 ABI. + +2014-02-04 Ulrich Weigand <uweigand@de.ibm.com> + * ppc-linux-tdep.c (ppc_linux_init_abi): Only call set_gdbarch_convert_from_func_ptr_addr and set_gdbarch_elf_make_msymbol_special for ELFv1. diff --git a/gdb/ppc-sysv-tdep.c b/gdb/ppc-sysv-tdep.c index b7fb429..f6b24bf 100644 --- a/gdb/ppc-sysv-tdep.c +++ b/gdb/ppc-sysv-tdep.c @@ -1474,9 +1474,13 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, argpos.regcache = regcache; argpos.refparam = align_down (sp - refparam_size, 16); argpos.gparam = align_down (argpos.refparam - gparam_size, 16); - /* Add in space for the TOC, link editor double word, - compiler double word, LR save area, CR save area. */ - sp = align_down (argpos.gparam - 48, 16); + /* Add in space for the TOC, link editor double word (v1 only), + compiler double word (v1 only), LR save area, CR save area, + and backchain. */ + if (tdep->elf_abi == POWERPC_ELF_V1) + sp = align_down (argpos.gparam - 48, 16); + else + sp = align_down (argpos.gparam - 32, 16); } /* If the function is returning a `struct', then there is an |