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| author | jhibbits <jhibbits@FreeBSD.org> | 2012-11-07 23:45:09 +0000 |
|---|---|---|
| committer | jhibbits <jhibbits@FreeBSD.org> | 2012-11-07 23:45:09 +0000 |
| commit | 99d6a5644c78b3f3504ecbf7be003b7c3e99a62a (patch) | |
| tree | 8d8c4ccbc7450fce2f9dc5ef56aa8edccb25145d /lib/libproc | |
| parent | c0efff79f978db7391db5e3e771dd9eaaf68abc5 (diff) | |
| download | FreeBSD-src-99d6a5644c78b3f3504ecbf7be003b7c3e99a62a.zip FreeBSD-src-99d6a5644c78b3f3504ecbf7be003b7c3e99a62a.tar.gz | |
Implement DTrace for PowerPC. This includes both 32-bit and 64-bit.
There is one known issue: Some probes will display an error message along the
lines of: "Invalid address (0)"
I tested this with both a simple dtrace probe and dtruss on a few different
binaries on 32-bit. I only compiled 64-bit, did not run it, but I don't expect
problems without the modules loaded. Volunteers are welcome.
MFC after: 1 month
Diffstat (limited to 'lib/libproc')
| -rw-r--r-- | lib/libproc/proc_bkpt.c | 3 | ||||
| -rw-r--r-- | lib/libproc/proc_regs.c | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/libproc/proc_bkpt.c b/lib/libproc/proc_bkpt.c index e16b0fc..c15e53c 100644 --- a/lib/libproc/proc_bkpt.c +++ b/lib/libproc/proc_bkpt.c @@ -47,6 +47,9 @@ __FBSDID("$FreeBSD$"); #elif defined(__mips__) #define BREAKPOINT_INSTR 0xd /* break */ #define BREAKPOINT_INSTR_SZ 4 +#elif defined(__powerpc__) +#define BREAKPOINT_INSTR 0x7fe00008 /* trap */ +#define BREAKPOINT_INSTR_SZ 4 #else #error "Add support for your architecture" #endif diff --git a/lib/libproc/proc_regs.c b/lib/libproc/proc_regs.c index c299b9b..aac0125 100644 --- a/lib/libproc/proc_regs.c +++ b/lib/libproc/proc_regs.c @@ -60,6 +60,8 @@ proc_regget(struct proc_handle *phdl, proc_reg_t reg, unsigned long *regvalue) *regvalue = regs.r_eip; #elif defined(__mips__) *regvalue = regs.r_regs[PC]; +#elif defined(__powerpc__) + *regvalue = regs.pc; #endif break; case REG_SP: @@ -69,6 +71,8 @@ proc_regget(struct proc_handle *phdl, proc_reg_t reg, unsigned long *regvalue) *regvalue = regs.r_esp; #elif defined(__mips__) *regvalue = regs.r_regs[SP]; +#elif defined(__powerpc__) + *regvalue = regs.fixreg[1]; #endif break; default: @@ -99,6 +103,8 @@ proc_regset(struct proc_handle *phdl, proc_reg_t reg, unsigned long regvalue) regs.r_eip = regvalue; #elif defined(__mips__) regs.r_regs[PC] = regvalue; +#elif defined(__powerpc__) + regs.pc = regvalue; #endif break; case REG_SP: @@ -108,6 +114,8 @@ proc_regset(struct proc_handle *phdl, proc_reg_t reg, unsigned long regvalue) regs.r_esp = regvalue; #elif defined(__mips__) regs.r_regs[PC] = regvalue; +#elif defined(__powerpc__) + regs.fixreg[1] = regvalue; #endif break; default: |
