diff options
author | Sangamesh Mallayya <nickc@redhat.com> | 2015-10-27 10:30:29 +0000 |
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committer | Nick Clifton <nickc@redhat.com> | 2015-10-27 10:30:29 +0000 |
commit | d6867a7559ceb7380fc229f948fd5fd910404643 (patch) | |
tree | fdc77e32ab47e4a9ee741e1cd0e1f9db0e08fa40 /bfd/rs6000-core.c | |
parent | ef8e6722f2eaae6d65b360459451f57f1350d2af (diff) | |
download | gdb-d6867a7559ceb7380fc229f948fd5fd910404643.zip gdb-d6867a7559ceb7380fc229f948fd5fd910404643.tar.gz gdb-d6867a7559ceb7380fc229f948fd5fd910404643.tar.bz2 |
Add support for 32-bit and 64-bit PowerPC AIX core files.
* configure.ac (powerpc64-*-aix[5-9].*): Match powerpc64 running
aix for core file support.
* configure: Regenerate.
* rs6000-core.c: Check for __ld_info64 if compiling 64-bit gdb.
Added BFD64 check if we are using old core file format for 32-bit gdb.
Set sizeof CORE_COMMONSZ appropriately in case of either new or
old core file format.
(read_hdr): Added BFD64 check for 64-bit support.
(rs6000coff_core_p): Likewise.
(rs6000coff_core_file_matches_executable_p): Likewise.
(rs6000coff_core_file_failing_command): Likewise.
(rs6000coff_core_file_failing_signal): Likewise.
Add support for debugging core files generated by binaries in
Large Memory model.
(rs6000coff_core_p): If Large Memory Model is used, then the .data
segment should start from BDATAORG which has been defined in the
system header files.
Diffstat (limited to 'bfd/rs6000-core.c')
-rw-r--r-- | bfd/rs6000-core.c | 98 |
1 files changed, 77 insertions, 21 deletions
diff --git a/bfd/rs6000-core.c b/bfd/rs6000-core.c index 6711498..0f469c4 100644 --- a/bfd/rs6000-core.c +++ b/bfd/rs6000-core.c @@ -55,9 +55,7 @@ #undef SCNHDR -/* ------------------------------------------------------------------------ */ -/* Support for core file stuff.. */ -/* ------------------------------------------------------------------------ */ +/* Support for core file stuff. */ #include <sys/user.h> #define __LDINFO_PTRACE32__ /* for __ld_info32 */ @@ -91,8 +89,9 @@ typedef unsigned long ptr_to_uint; /* Union of 32-bit and 64-bit versions of ld_info. */ -typedef union { -#ifdef __ld_info32 +typedef union +{ +#if defined (__ld_info32) || defined (__ld_info64) struct __ld_info32 l32; struct __ld_info64 l64; #else @@ -103,33 +102,43 @@ typedef union { /* Union of old and new core dump structures. */ -typedef union { +typedef union +{ #ifdef AIX_CORE_DUMPX_CORE - struct core_dumpx new_dump; /* new AIX 4.3+ core dump */ + struct core_dumpx new_dump; /* New AIX 4.3+ core dump. */ #else - struct core_dump new_dump; /* for simpler coding */ + struct core_dump new_dump; /* For simpler coding. */ +#endif +#ifndef BFD64 /* Use old only if gdb is 32-bit. */ + struct core_dump old; /* Old AIX 4.2- core dump, still used on + 4.3+ with appropriate SMIT config. */ #endif - struct core_dump old; /* old AIX 4.2- core dump, still used on - 4.3+ with appropriate SMIT config */ } CoreHdr; /* Union of old and new vm_info structures. */ #ifdef CORE_VERSION_1 -typedef union { +typedef union +{ #ifdef AIX_CORE_DUMPX_CORE struct vm_infox new_dump; #else struct vm_info new_dump; #endif +#ifndef BFD64 struct vm_info old; +#endif } VmInfo; #endif /* Return whether CoreHdr C is in new or old format. */ #ifdef AIX_CORE_DUMPX_CORE -# define CORE_NEW(c) (!(c).old.c_entries) +# ifndef BFD64 +# define CORE_NEW(c) (!(c).old.c_entries) +# else +# define CORE_NEW(c) (!(c).new_dump.c_entries) +# endif #else # define CORE_NEW(c) 0 #endif @@ -258,9 +267,13 @@ typedef union { /* Size of the leading portion that old and new core dump structures have in common. */ -#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \ - + sizeof (((struct core_dump *) 0)->c_entries)) - +#ifdef AIX_CORE_DUMPX_CORE +#define CORE_COMMONSZ ((long) &((struct core_dumpx *) 0)->c_entries \ + + sizeof (((struct core_dumpx *) 0)->c_entries)) +#else +#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \ + + sizeof (((struct core_dump *) 0)->c_entries) +#endif /* Define prototypes for certain functions, to avoid a compiler warning saying that they are missing. */ @@ -290,8 +303,10 @@ read_hdr (bfd *abfd, CoreHdr *core) /* Read the trailing portion of the structure. */ if (CORE_NEW (*core)) size = sizeof (core->new_dump); +#ifndef BFD64 else size = sizeof (core->old); +#endif size -= CORE_COMMONSZ; return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size; } @@ -356,6 +371,7 @@ rs6000coff_core_p (bfd *abfd) c_stackend = CNEW_STACKORG (core.new_dump) + c_size; c_lsize = CNEW_LSIZE (core.new_dump); c_loader = CNEW_LOADER (core.new_dump); +#ifndef BFD64 proc64 = CNEW_PROC64 (core.new_dump); } else @@ -366,6 +382,7 @@ rs6000coff_core_p (bfd *abfd) c_stackend = COLD_STACKEND; c_lsize = 0x7ffffff; c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); +#endif proc64 = 0; } @@ -379,11 +396,13 @@ rs6000coff_core_p (bfd *abfd) c_regsize = sizeof (CNEW_MSTSAVE (core.new_dump)); c_regptr = &CNEW_MSTSAVE (core.new_dump); } +#ifndef BFD64 else { c_regsize = sizeof (COLD_MSTSAVE (core.old)); c_regptr = &COLD_MSTSAVE (core.old); } +#endif c_regoff = (char *) c_regptr - (char *) &core; if (bfd_stat (abfd, &statbuf) < 0) @@ -433,9 +452,15 @@ rs6000coff_core_p (bfd *abfd) } /* Sanity check on the c_tab field. */ - if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old || - c_loader >= statbuf.st_size || - c_loader >= c_stack)) + if (!CORE_NEW (core) + && ( +#ifndef BFD64 + c_loader < (file_ptr) sizeof core.old +#else + c_loader < (file_ptr) sizeof core.new_dump +#endif + || c_loader >= statbuf.st_size + || c_loader >= c_stack)) { bfd_set_error (bfd_error_wrong_format); return NULL; @@ -447,7 +472,11 @@ rs6000coff_core_p (bfd *abfd) bfd_get_filename (abfd)); /* Allocate core file header. */ +#ifndef BFD64 size = CORE_NEW (core) ? sizeof (core.new_dump) : sizeof (core.old); +#else + size = sizeof (core.new_dump); +#endif tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size); if (!tmpptr) return NULL; @@ -528,6 +557,7 @@ rs6000coff_core_p (bfd *abfd) file_ptr ldi_core; uint ldi_next; bfd_vma ldi_dataorg; + bfd_vma core_dataorg; /* Fields from new and old core structures. */ bfd_size_type c_datasize, c_vmregions; @@ -540,6 +570,7 @@ rs6000coff_core_p (bfd *abfd) c_vmregions = core.new_dump.c_vmregions; c_vmm = (file_ptr) core.new_dump.c_vmm; } +#ifndef BFD64 else { c_datasize = core.old.c_datasize; @@ -547,23 +578,32 @@ rs6000coff_core_p (bfd *abfd) c_vmregions = core.old.c_vmregions; c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm; } +#endif /* .data section from executable. */ if (c_datasize) { + /* If Large Memory Model is used, then the .data segment should start from + BDATAORG which has been defined in the system header files. */ + + if (c_flag & CORE_BIGDATA) + core_dataorg = BDATAORG; + else + core_dataorg = CDATA_ADDR (c_datasize); + if (!make_bfd_asection (abfd, ".data", SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, c_datasize, - (bfd_vma) CDATA_ADDR (c_datasize), + (bfd_vma) core_dataorg, c_data)) goto fail; } /* .data sections from loaded objects. */ if (proc64) - size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; + size = (unsigned long) ((LdInfo *) 0)->l64.ldinfo_filename; else - size = (int) ((LdInfo *) 0)->l32.ldinfo_filename; + size = (unsigned long) ((LdInfo *) 0)->l32.ldinfo_filename; while (1) { @@ -613,7 +653,11 @@ rs6000coff_core_p (bfd *abfd) file_ptr vminfo_offset; bfd_vma vminfo_addr; +#ifndef BFD64 size = CORE_NEW (core) ? sizeof (vminfo.new_dump) : sizeof (vminfo.old); +#else + size = sizeof (vminfo.new_dump); +#endif if (bfd_bread (&vminfo, size, abfd) != size) goto fail; @@ -623,12 +667,14 @@ rs6000coff_core_p (bfd *abfd) vminfo_size = vminfo.new_dump.vminfo_size; vminfo_offset = vminfo.new_dump.vminfo_offset; } +#ifndef BFD64 else { vminfo_addr = (bfd_vma) (ptr_to_uint) vminfo.old.vminfo_addr; vminfo_size = vminfo.old.vminfo_size; vminfo_offset = vminfo.old.vminfo_offset; } +#endif if (vminfo_offset) if (!make_bfd_asection (abfd, ".vmdata", @@ -668,8 +714,10 @@ rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd) if (CORE_NEW (core)) c_loader = CNEW_LOADER (core.new_dump); +#ifndef BFD64 else c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old); +#endif if (CORE_NEW (core) && CNEW_PROC64 (core.new_dump)) size = (int) ((LdInfo *) 0)->l64.ldinfo_filename; @@ -732,8 +780,12 @@ char * rs6000coff_core_file_failing_command (bfd *abfd) { CoreHdr *core = core_hdr (abfd); +#ifndef BFD64 char *com = CORE_NEW (*core) ? CNEW_COMM (core->new_dump) : COLD_COMM (core->old); +#else + char *com = CNEW_COMM (core->new_dump); +#endif if (*com) return com; @@ -745,7 +797,11 @@ int rs6000coff_core_file_failing_signal (bfd *abfd) { CoreHdr *core = core_hdr (abfd); +#ifndef BFD64 return CORE_NEW (*core) ? core->new_dump.c_signo : core->old.c_signo; +#else + return core->new_dump.c_signo; +#endif } #endif /* AIX_CORE */ |