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| author | jamesbowman <jamesb@excamera.com> | 2015-09-29 09:31:09 -0700 |
|---|---|---|
| committer | jamesbowman <jamesb@excamera.com> | 2015-09-29 09:31:09 -0700 |
| commit | 4f714dd43efde465c7f2272ee444ccd2f1b3a1b5 (patch) | |
| tree | bf9ad628748950aa74e6c9dd34277360274cc346 /gdb/ft32-tdep.c | |
| parent | 86feccb92092506f2a23a32345bc0f562ac4042b (diff) | |
| download | gdb-4f714dd43efde465c7f2272ee444ccd2f1b3a1b5.zip gdb-4f714dd43efde465c7f2272ee444ccd2f1b3a1b5.tar.gz gdb-4f714dd43efde465c7f2272ee444ccd2f1b3a1b5.tar.bz2 | |
Rebase patch #7
Diffstat (limited to 'gdb/ft32-tdep.c')
| -rw-r--r-- | gdb/ft32-tdep.c | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/gdb/ft32-tdep.c b/gdb/ft32-tdep.c index 00cf847..0b51af3 100644 --- a/gdb/ft32-tdep.c +++ b/gdb/ft32-tdep.c @@ -164,33 +164,66 @@ ft32_analyze_prologue (CORE_ADDR start_addr, CORE_ADDR end_addr, CORE_ADDR next_addr; ULONGEST inst, inst2; LONGEST offset; - int regnum; + int regnum, pushreg; + struct bound_minimal_symbol msymbol; + unsigned prologs[32]; cache->saved_regs[FT32_PC_REGNUM] = 0; cache->framesize = 0; + for (regnum = 0; regnum < 32; regnum++) + { + char prolog_symbol[32]; + + snprintf (prolog_symbol, sizeof (prolog_symbol), "__prolog_$r%02d", + regnum); + msymbol = lookup_minimal_symbol (prolog_symbol, NULL, NULL); + if (msymbol.minsym) + prologs[regnum] = BMSYMBOL_VALUE_ADDRESS (msymbol); + else + prologs[regnum] = 0; + } + if (start_addr >= end_addr) - return end_addr; + return end_addr; cache->established = 0; - for (next_addr = start_addr; next_addr < end_addr; ) + for (next_addr = start_addr; next_addr < end_addr;) { inst = read_memory_unsigned_integer (next_addr, 4, byte_order); if (FT32_IS_PUSH (inst)) { - regnum = FT32_R0_REGNUM + FT32_PUSH_REG (inst); + pushreg = FT32_PUSH_REG (inst); cache->framesize += 4; - cache->saved_regs[regnum] = cache->framesize; + cache->saved_regs[FT32_R0_REGNUM + pushreg] = cache->framesize; next_addr += 4; } + else if (FT32_IS_CALL (inst)) + { + for (regnum = 0; regnum < 32; regnum++) + { + if ((4 * (inst & 0x3ffff)) == prologs[regnum]) + { + for (pushreg = 13; pushreg <= regnum; pushreg++) + { + cache->framesize += 4; + cache->saved_regs[FT32_R0_REGNUM + pushreg] = + cache->framesize; + } + next_addr += 4; + } + } + break; + } else break; } for (regnum = FT32_R0_REGNUM; regnum < FT32_PC_REGNUM; regnum++) { if (cache->saved_regs[regnum] != REG_UNAVAIL) - cache->saved_regs[regnum] = cache->framesize - cache->saved_regs[regnum]; + cache->saved_regs[regnum] = + cache->framesize - cache->saved_regs[regnum]; } cache->saved_regs[FT32_PC_REGNUM] = cache->framesize; |