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gh-137293: Ignore Exceptions when searching ELF File in Remote Debug #137309

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gh-137293: Ignore Exceptions when searching ELF File in Remote Debug #137309

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18786cf
gh-137293: Print Exceptions in searching ELF File in Remote Debug
uxioandrade Aug 1, 2025
fc3649c
gh-137293 print exception instead of clearing
uxioandrade Aug 1, 2025
8086288
📜🤖 Added by blurb_it.
blurb-it[bot] Aug 1, 2025
17b9d10
gh-137293 clear exception
uxioandrade Aug 1, 2025
86e73eb
gh-137293 remove exceptions in search_elf_file_for_section
uxioandrade Aug 1, 2025
c6b5c64
Update Misc/NEWS.d/next/Core_and_Builtins/2025-08-01-20-31-30.gh-issu…
uxioandrade Aug 1, 2025
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2025-08-01-20-31-30.gh-issue-137293.4x3JbV.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix :exc:`SystemError` when searching ELF Files in :func:`sys.remote_exec`.
18 changes: 0 additions & 18 deletions Python/remote_debug.h
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Original file line number Diff line number Diff line change
Expand Up @@ -572,35 +572,23 @@ search_elf_file_for_section(

int fd = open(elf_file, O_RDONLY);
if (fd < 0) {
PyErr_Format(PyExc_OSError,
"Cannot open ELF file '%s' for section '%s' search: %s",
elf_file, secname, strerror(errno));
goto exit;
}

struct stat file_stats;
if (fstat(fd, &file_stats) != 0) {
PyErr_Format(PyExc_OSError,
"Cannot get file size for ELF file '%s' during section '%s' search: %s",
elf_file, secname, strerror(errno));
goto exit;
}

file_memory = mmap(NULL, file_stats.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (file_memory == MAP_FAILED) {
PyErr_Format(PyExc_OSError,
"Cannot memory map ELF file '%s' (size: %lld bytes) for section '%s' search: %s",
elf_file, (long long)file_stats.st_size, secname, strerror(errno));
goto exit;
}

Elf_Ehdr* elf_header = (Elf_Ehdr*)file_memory;

// Validate ELF header
if (elf_header->e_shstrndx >= elf_header->e_shnum) {
PyErr_Format(PyExc_RuntimeError,
"Invalid ELF file '%s': string table index %u >= section count %u",
elf_file, elf_header->e_shstrndx, elf_header->e_shnum);
goto exit;
}

Expand Down Expand Up @@ -635,9 +623,6 @@ search_elf_file_for_section(
}

if (first_load_segment == NULL) {
PyErr_Format(PyExc_RuntimeError,
"No PT_LOAD segment found in ELF file '%s' (%u program headers examined)",
elf_file, elf_header->e_phnum);
goto exit;
}

Expand All @@ -650,9 +635,6 @@ search_elf_file_for_section(
munmap(file_memory, file_stats.st_size);
}
if (fd >= 0 && close(fd) != 0) {
PyErr_Format(PyExc_OSError,
"Failed to close ELF file '%s': %s",
elf_file, strerror(errno));
result = 0;
}
return result;
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