ftrace_graph_top_ret_addr(9)

✨ ftrace_graph_top_ret_addr 💅

okay so bestie, welcome to the kernel API manual — this one's a little function with main character energy, and honestly? it's giving "short but iconic." 🎀

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🌸 NAME

ftrace_graph_top_ret_addr — returns the top return address in the shadow stack 🦋

like, literally. that's the whole vibe.

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✨ SYNOPSIS

unsigned long ftrace_graph_top_ret_addr (struct task_struct *task );

that's it, that's the signature. no cap. 💅

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🫶 ARGUMENTS

• task — the task you wanna read the shadow stack from. that's the whole assignment bestie, just hand it the task and it'll go look. 👑

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💖 DESCRIPTION

okay so here's the tea ☕: this function returns the first return address on the shadow stack of the task — and here's the important bit — it's not the fgraph's return_to_handler. so like, we're skipping past that one, that's not the one we want, we want the top one that isn't that. periods. 🙈

basically: shadow stack, top rung, not return_to_handler, slay. 🔥

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🌈 SEE ALSO

• Kernel file ./kernel/trace/fgraph.c
• fgraph_reserve_data(9)
• fgraph_retrieve_data(9)
• fgraph_get_task_var(9)
• fgraph_retrieve_parent_data(9)
• ftrace_graph_stop(9)
• ftrace_graph_get_ret_stack(9)
• ftrace_graph_ret_addr(9)

go read those if you want the full lore, iykyk ⭐

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and that's a wrap bestie!! this lil page lives in ./kernel/trace, dated October 2026, and it's part of the Kernel API Manual — mwah, drink water, and may your shadow stack always be immaculate 🧚💜