Return address of a function in a frame

[Suchitra Venugopal]

Hi,
I am working on HP Itanium Stack unwinding functions. I need to find out the return address of a function in each frame of a stack. Is there any API which gives me this value?

Thanks,
Suchitra

[Dennis Handly]

You call uwx_step(3X) to get the next IP.
See recent thread:
http://h30499.www3.hp.com/t5/Languages-and-Scripting/stack-pointer-values-using-uxw-show-strange-behaviour/m-p/4590939

[Suchitra Venugopal]

Hi,
I am using uwx_step API to step through each frame in a Stack. The issue i have is to find out the return address of the function which corresponds to a particular frame. I have the function implemented in HP PARISC where it takes the value at current frame's curr_pcoffset to get the return address. What is the corresponding value in HP Itanium?

[Dennis Handly]

>I am using uwx_step API to step through each frame in a Stack.

The current context contains the PC. If you want the PC of the caller, you need to call uwx_step.

>I have the function implemented in PA-RISC

You throw that broken design away.

[Suprateeka R Hegde]

try uwx_get_reg(3X) with the regid being UWX_REG_RP. does it work for you? see manpage for more details.