diff options
Diffstat (limited to 'gdb/mips-tdep.c')
| -rw-r--r-- | gdb/mips-tdep.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index b4153fd..531d936 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -2396,15 +2396,28 @@ heuristic-fence-post' command.\n", paddr_nz (pc), paddr_nz (pc)); /* On MIPS16, any one of the following is likely to be the start of a function: + extend save + save entry addiu sp,-n daddiu sp,-n extend -n followed by 'addiu sp,+n' or 'daddiu sp,+n' */ inst = mips_fetch_instruction (start_pc); - if (((inst & 0xf81f) == 0xe809 && (inst & 0x700) != 0x700) /* entry */ - || (inst & 0xff80) == 0x6380 /* addiu sp,-n */ - || (inst & 0xff80) == 0xfb80 /* daddiu sp,-n */ - || ((inst & 0xf810) == 0xf010 && seen_adjsp)) /* extend -n */ + if ((inst & 0xff80) == 0x6480) /* save */ + { + if (start_pc - instlen >= fence) + { + inst = mips_fetch_instruction (start_pc - instlen); + if ((inst & 0xf800) == 0xf000) /* extend */ + start_pc -= instlen; + } + break; + } + else if (((inst & 0xf81f) == 0xe809 + && (inst & 0x700) != 0x700) /* entry */ + || (inst & 0xff80) == 0x6380 /* addiu sp,-n */ + || (inst & 0xff80) == 0xfb80 /* daddiu sp,-n */ + || ((inst & 0xf810) == 0xf010 && seen_adjsp)) /* extend -n */ break; else if ((inst & 0xff00) == 0x6300 /* addiu sp */ || (inst & 0xff00) == 0xfb00) /* daddiu sp */ |