[PATCH] gprofng: Properly generate file offset for gmon.out

From e309868d93544a242c933d71703dc173012782f3 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <[email protected]>
Date: Mon, 10 Aug 2026 11:54:24 +0800
Subject: [PATCH] gprofng: Properly generate file offset for gmon.out

When generating the map file for gmon.out, get the file offset from the
filepos field of core_text_sect.  This fixes

FAIL: tmpdir/gp-gmon

on Linux/x86-64.

	PR gprofng/34502
	* src/gp-gmon.cc (gen_gmon_map): Get the file offset from the
	filepos field of core_text_sect.

Signed-off-by: H.J. Lu <[email protected]>
---
 gprofng/src/gp-gmon.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gprofng/src/gp-gmon.cc b/gprofng/src/gp-gmon.cc
index f8a8adb7fc9..81fe48e2586 100644
--- a/gprofng/src/gp-gmon.cc
+++ b/gprofng/src/gp-gmon.cc
@@ -504,7 +504,7 @@ gen_gmon_map (char *name)
   bfd_vma loadaddr, vaddr = core_text_sect->vma; //lma?
   bfd_size_type msize = core_text_sect->size;
   int timestamp = 1;
-  int offset = 0;
+  int offset = core_text_sect->filepos;
   int check = -1;
   int modeflags = PROT_READ | PROT_EXEC; //0x05
   char *new_file_path;
@@ -522,6 +522,7 @@ gen_gmon_map (char *name)
   mpage = ~(page_size - 1);
   // Round down to page size alignment
   loadaddr = vaddr & mpage;
+  offset &= mpage;
   // Compensate for the alignment gain
   msize += vaddr - loadaddr;
   // Round up to a multiple of page size;
-- 
2.55.0