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Diffstat (limited to 'mdk-stage1/dietlibc/profiling/PORTING')
| -rw-r--r-- | mdk-stage1/dietlibc/profiling/PORTING | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/mdk-stage1/dietlibc/profiling/PORTING b/mdk-stage1/dietlibc/profiling/PORTING deleted file mode 100644 index c3fc5eba7..000000000 --- a/mdk-stage1/dietlibc/profiling/PORTING +++ /dev/null @@ -1,25 +0,0 @@ - Porting to other platforms - - ... is easy. Just create an mcount.S in the $ARCH - directory (eg. dietlibc/i386) which includes a - function (called "mcount") that: - - 1.) saves ALL registers that are freely usable - and which might be used by __mcount(). - 2.) loads the instruction pointer (PC) from the - function that called mcount, and the function - which called the function, that called mcount - into the first two argument registers (or push - them on the stack - depending on the processor- - architecture). - 3.) call __mcount. - 4.) restore the registers saved in 1) - - Then You need a macro called PC in <asm/sigcontext.h> - which extracts the (instruction pointer / program - counter) from a sigcontext structure (eg. on i386 this - would be ctx.eip). - - $ARCH/start.S must also be modified to call monitor - with the offset of .text and _etext as parameters. - |